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removed my cothreads dir in favor of the cothreads/ module

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Original commit message from CVS:
removed my cothreads dir in favor of the cothreads/ module
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Andy Wingo 2002-02-04 03:23:12 +00:00
parent 53b6bb6242
commit 7ed9201e06
34 changed files with 1 additions and 6683 deletions
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Subproject commit d81417a103945ab1c393e74557983b1163e9e353
Subproject commit 47d51c3f04e416caa4c43c72a5458df99cf09c3a

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gst/cothreads/AUTHORS
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____ _ _
| _ \| |_| |__
| |_) | __| '_ \ ``Some people have entirely too
| __/| |_| | | | much free time on their hands.''
|_| \__|_| |_| -- Gene Spafford
GNU Pth - The GNU Portable Threads
AUTHORS
=======
This is a list of authors who have written
or edited major parts of the GNU Pth sources.
o GNU Pth (as a whole):
Written by: Ralf S. Engelschall
Edited by: Ralf S. Engelschall
o pthread.pod:
Written by: Ralf S. Engelschall
Parts from: The Open Group
Edited by: Ralf S. Engelschall
Modified for inclusion in GStreamer by Andy Wingo <wingo@pobox.com>
All bugs to gstreamer-devel@lists.sourceforge.net

481
gst/cothreads/COPYING
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@ -1,481 +0,0 @@
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0
gst/cothreads/ChangeLog
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gst/cothreads/INSTALL
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This package has been modified for use with GStreamer. Go to the root gstreamer
directory to install.

36
gst/cothreads/Makefile.am
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## Makefile.am: NGPT Makefile.in hacked into an automake file by wingo
## <wingo@pobox.com>
##
# ``UNIX -- where you can do anything
# in two keystrokes, or less...''
noinst_LTLIBRARIES = libpth-mctx.la libgstcothreads.la
libpth_mctx_la_SOURCES = pth_mctx.c pth_p.h pth_vers.c pth.h pth_acdef.h pth_acmac.h
libgstcothreads_la_SOURCES = cothreads.c cothread-stack.c cothreads.h
libgstcothreads_la_LIBADD = libpth-mctx.la $(GLIB_LIBS)
libgstcothreads_la_CFLAGS = $(GLIB_CFLAGS)
noinst_PROGRAMS = test-pth test-pth-pthreads test-pthreads test-pth-pthreads2 test-cothreads
noinst_HEADERS = linuxthreads.h cothreads-private.h cothreads.h
test_pth_LDADD = libpth-mctx.la
test_pth_pthreads_LDADD = libpth-mctx.la -lpthread
test_pthreads_LDADD = -lpthread
test_pth_pthreads2_LDADD = -lpthread libpth-mctx.la
test_cothreads_CFLAGS = $(GLIB_CFLAGS)
test_cothreads_LDADD = libgstcothreads.la
BUILT_SOURCES = pth_p.h
EXTRA_DIST = ltmain.sh mkinstalldirs config.guess config.sub install-sh missing
HSRCS = $(srcdir)/pth_debug.c $(srcdir)/pth_errno.c $(srcdir)/pth_mctx.c
pth_p.h: $(srcdir)/pth_p.h.in $(HSRCS)
$(srcdir)/shtool scpp -o pth_p.h -t $(srcdir)/pth_p.h.in -Dcpp -Cintern -M '==#==' $(HSRCS)
#pth_mctx_a_DEPENDENCIES = shtool
#shtool:
# shtoolize -o shtool scpp

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gst/cothreads/NEWS
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no gnus here

5
gst/cothreads/README
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I ripped the core out of GNU pth to provide cothreading for GStreamer. That's
what this package is. It was written by Ralf Engelschall. Plaudits to him, bug
reports to gstreamer-devel@lists.sourceforge.net.
wingo <wingo@pobox.com>, 20 Jan 2002

61
gst/cothreads/acconfig.h
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/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_acdef.h Autoconf defines
*/
#ifndef _PTH_ACDEF_H_
#define _PTH_ACDEF_H_
@TOP@
/* the custom Autoconf defines */
#undef HAVE_SIG_ATOMIC_T
#undef HAVE_PID_T
#undef HAVE_STACK_T
#undef HAVE_SIZE_T
#undef HAVE_SSIZE_T
#undef HAVE_SOCKLEN_T
#undef HAVE_NFDS_T
#undef HAVE_OFF_T
#undef HAVE_GETTIMEOFDAY_ARGS1
#undef HAVE_STRUCT_TIMESPEC
#undef HAVE_SYS_READ
#undef HAVE_POLLIN
#undef HAVE_SS_SP
#undef HAVE_SS_BASE
#undef HAVE_LONGLONG
#undef HAVE_LONGDOUBLE
#undef PTH_DEBUG
#undef PTH_NSIG
#undef PTH_MCTX_MTH_use
#undef PTH_MCTX_DSP_use
#undef PTH_MCTX_STK_use
#undef PTH_STACKGROWTH
#undef PTH_DMALLOC
#undef PTH_NEED_SEPARATE_REGISTER_STACK
#undef HAVE_LINUXTHREADS
@BOTTOM@
#endif /* _PTH_ACDEF_H_ */

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gst/cothreads/autogen.sh
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#!/bin/bash
# Run this to generate all the initial makefiles, etc.
DIE=0
package=gstpth
srcfile=pth_mctx.c
#DEBUG=defined
for i in $@; do
if test "$i" = "--autogen-noconfigure"; then
NOCONFIGURE=defined
echo "+ configure run disabled"
elif test "$i" = "--autogen-nocheck"; then
NOCHECK=defined
echo "+ autotools version check disabled"
elif test "$i" = "--autogen-debug"; then
DEBUG=defined
echo "+ debug output enabled"
elif test "$i" = "--help"; then
echo "autogen.sh help options: "
echo " --autogen-noconfigure don't run the configure script"
echo " --autogen-nocheck don't do version checks"
echo " --autogen-debug debug the autogen process"
echo "continuing with the autogen in order to get configure help messages..."
fi
done
debug ()
# print out a debug message if DEBUG is a defined variable
{
if test ! -z "$DEBUG"
then
echo "DEBUG: $1"
fi
}
version_check ()
# check the version of a package
# first argument : package name (executable)
# second argument : source download url
# rest of arguments : major, minor, micro version
{
PACKAGE=$1
URL=$2
MAJOR=$3
MINOR=$4
MICRO=$5
WRONG=
debug "major $MAJOR minor $MINOR micro $MICRO"
VERSION=$MAJOR
if test ! -z "$MINOR"; then VERSION=$VERSION.$MINOR; else MINOR=0; fi
if test ! -z "$MICRO"; then VERSION=$VERSION.$MICRO; else MICRO=0; fi
debug "major $MAJOR minor $MINOR micro $MICRO"
test -z "$NOCHECK" && {
echo -n "+ checking for $1 >= $VERSION ... "
} || {
echo "+ NOT checking for $1 >= $VERSION, as requested ..."
return 0
}
($PACKAGE --version) < /dev/null > /dev/null 2>&1 ||
{
echo
echo "You must have $PACKAGE installed to compile $package."
echo "Download the appropriate package for your distribution,"
echo "or get the source tarball at $URL"
return 1
}
# the following line is carefully crafted sed magic
pkg_version=`$PACKAGE --version|head -n 1|sed 's/^[a-zA-z\.\ ()]*//;s/ .*$//'`
debug "pkg_version $pkg_version"
pkg_major=`echo $pkg_version | cut -d. -f1`
pkg_minor=`echo $pkg_version | cut -d. -f2`
pkg_micro=`echo $pkg_version | cut -d. -f3`
test -z "$pkg_minor" && pkg_minor=0
test -z "$pkg_micro" && pkg_micro=0
debug "found major $pkg_major minor $pkg_minor micro $pkg_micro"
#start checking the version
debug "version check"
if [ ! "$pkg_major" \> "$MAJOR" ]; then
debug "$pkg_major <= $MAJOR"
if [ "$pkg_major" \< "$MAJOR" ]; then
WRONG=1
elif [ ! "$pkg_minor" \> "$MINOR" ]; then
if [ "$pkg_minor" \< "$MINOR" ]; then
WRONG=1
elif [ "$pkg_micro" \< "$MICRO" ]; then
WRONG=1
fi
fi
fi
if test ! -z "$WRONG"; then
echo "found $pkg_version, not ok !"
echo
echo "You must have $PACKAGE $VERSION or greater to compile $package."
echo "Get the latest version from $URL"
return 1
else
echo "found $pkg_version, ok."
fi
}
# autoconf 2.52d has a weird issue involving a yes:no error
# so don't allow it's use
ac_version=`autoconf --version|head -n 1|sed 's/^[a-zA-z\.\ ()]*//;s/ .*$//'`
if test "$ac_version" = "2.52d"; then
echo "autoconf 2.52d has an issue with our current build."
echo "We don't know who's to blame however. So until we do, get a"
echo "regular version. RPM's of a working version are on the gstreamer site."
exit 1
fi
version_check "autoconf" "ftp://ftp.gnu.org/pub/gnu/autoconf/" 2 52 || DIE=1
version_check "automake" "ftp://ftp.gnu.org/pub/gnu/automake/" 1 5 || DIE=1
version_check "libtool" "ftp://ftp.gnu.org/pub/gnu/libtool/" 1 4 0 || DIE=1
if test "$DIE" -eq 1; then
exit 1
fi
test -f $srcfile || {
echo "You must run this script in the top-level $package directory"
exit 1
}
if test -z "$*"; then
echo "I am going to run ./configure with no arguments - if you wish "
echo "to pass any to it, please specify them on the $0 command line."
fi
echo "+ creating acinclude.m4"
cat m4/*.m4 > acinclude.m4
echo "+ running aclocal ..."
aclocal $ACLOCAL_FLAGS || {
echo
echo "aclocal failed - check that all needed development files are present on system"
exit 1
}
# FIXME : why does libtoolize keep complaining about aclocal ?
#echo "+ running libtoolize ..."
#libtoolize --copy --force || {
# echo
# echo "libtoolize failed"
# exit 1
#}
echo "+ running autoheader ... "
autoheader || {
echo
echo "autoheader failed"
exit 1
}
# touch the stamp-h.in build stamp so we don't re-run autoheader in maintainer mode -- wingo
echo timestamp > stamp-h.in 2> /dev/null
echo "+ running autoconf ... "
autoconf || {
echo
echo "autoconf failed"
exit 1
}
echo "+ running automake ... "
automake -a -c || {
echo
echo "automake failed"
exit 1
}
CONFIGURE_OPT='--enable-maintainer-mode'
# work around some wierd sort of autotools buglet
for i in install-sh mkinstalldirs config.sub config.guess missing ltmain.sh; do
ln -sf ../../$i $i
done
test -n "$NOCONFIGURE" && {
echo "skipping configure stage for package $package, as requested."
echo "autogen.sh done."
exit 0
}
echo "+ running configure ... "
echo "./configure default flags: $CONFIGURE_OPT"
echo "using: $CONFIGURE_OPT $@"
echo
./configure $CONFIGURE_OPT "$@" || {
echo
echo "configure failed"
exit 1
}
echo
echo "Now type 'make' to compile $package."

306
gst/cothreads/configure.ac
View file

@ -1,306 +0,0 @@
dnl ##
dnl ## NGPT - Next Generation POSIX Threading
dnl ## Copyright (c) 2001 IBM Corporation <babt@us.ibm.com>
dnl ## Portions Copyright (c) 1999-2000 Ralf S. Engelschall <rse@engelschall.com>
dnl ##
dnl ## This file is part of BlueThreads, a non-preemptive thread scheduling
dnl ## library which can be found at http://www.ibm.com/developer
dnl ##
dnl ## This library is free software; you can redistribute it and/or
dnl ## modify it under the terms of the GNU Lesser General Public
dnl ## License as published by the Free Software Foundation; either
dnl ## version 2.1 of the License, or (at your option) any later version.
dnl ##
dnl ## This library is distributed in the hope that it will be useful,
dnl ## but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl ## Lesser General Public License for more details.
dnl ##
dnl ## You should have received a copy of the GNU Lesser General Public
dnl ## License along with this library; if not, write to the Free Software
dnl ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
dnl ## USA.
dnl ##
dnl ## configure.in: ngpt Autoconf specification
dnl ##
dnl # hacked on for inclusion into the gstreamer project 20 Jan 2002 by Andy
dnl # Wingo <wingo@pobox.com>
dnl # ``Programming in Bourne-Shell
dnl # is a higher form of masochism.''
dnl # -- Unknown
AC_INIT
AM_CONFIG_HEADER(pth_acdef.h)
AM_INIT_AUTOMAKE(pth, 1400)
AC_MSG_PART(Build Tools)
AC_PROG_CC
AC_PROG_CPP
AC_SET_MAKE
AM_PROG_LIBTOOL
dnl ## Support for some special platform/compiler options
case "$PLATFORM:$CC" in
*-sun-solaris2*:cc )
# shut-up harmless warnings caused by do-while macros on Solaris
test ".$ac_cv_prog_gcc" = ".no" && PTH_CFLAGS="$PTH_CFLAGS -w"
;;
*-*-sysv*uw[27]*:cc )
# shut-up harmless warnings caused by do-while macros on UnixWare
PTH_CFLAGS="$PTH_CFLAGS -w"
;;
*-hp-hpux*:cc )
# HPUX needs a few special options to find its ANSI C brain
PTH_CFLAGS="$PTH_CFLAGS -Ae -O"
;;
*-hp-hpux*:CC )
# HPUX outputs useless warnings
PTH_CFLAGS="$PTH_CFLAGS -w"
;;
*-sgi-irix6.2:cc )
# shut-up warnings caused by IRIX brain-dead 32/64 bit stuff
PTH_LDFLAGS="$PTH_LDFLAGS -woff 85 -Wl,-woff,84 -Wl,-woff,85"
;;
*-sgi-irix6.5.[2-9]:cc )
# since IRIX 6.5.2 the C compiler is smart enough,
# but the linker is still complaining, of course
PTH_LDFLAGS="$PTH_LDFLAGS -woff 84,85,134"
;;
*-sgi-irix6.5:cc )
# shut-up warnings caused by IRIX brain-dead 32/64 bit stuff
PTH_CFLAGS="$PTH_CFLAGS -woff 1110,1048"
PTH_LDFLAGS="$PTH_LDFLAGS -woff 84,85,134"
;;
*-dec-osf4*:cc )
# make sure the standard compliant functions are used on Tru64/OSF1 4.x
PTH_CFLAGS="$PTH_CFLAGS -std"
;;
*-dec-osf5*:cc )
# make sure the standard compliant functions are used on Tru64/OSF1 5.x
PTH_CFLAGS="$PTH_CFLAGS -std -D_XOPEN_SOURCE_EXTENDED"
;;
*-*-isc*:* )
# ISC is brain-dead and needs a bunch of options to find its brain
PTH_CPPFLAGS="$PTH_CPPFLAGS -D_POSIX_SOURCE";
PTH_LIBS="$PTH_LIBS -lcposix -linet";
;;
esac
AC_MSG_PART(Mandatory Platform Environment)
dnl # check for standard headers
AC_HEADER_STDC
# FIXME
AC_HAVE_HEADERS(dnl
stdio.h stdlib.h stdarg.h string.h signal.h unistd.h setjmp.h fcntl.h dnl
errno.h sys/types.h)
AC_CHECK_FUNCTIONS(dnl
sigaction sigprocmask sigpending sigsuspend)
AC_BEGIN_DECISION([mandatory system headers and functions])
AC_IFALLYES(dnl
header:stdio.h header:stdlib.h header:stdarg.h header:string.h dnl
header:signal.h header:unistd.h header:setjmp.h header:fcntl.h header:errno.h dnl
header:sys/types.h dnl
func:sigaction func:sigprocmask dnl
func:sigpending func:sigsuspend,
AC_DECIDE(fine, [all fine]))
AC_END_DECISION
AC_MSG_PART(Optional Platform Environment)
dnl # check whether ss_base instead of ss_sp attribute exists
AC_CHECK_STRUCTATTR(ss_base, sigaltstack, sys/signal.h)
AC_CHECK_STRUCTATTR(ss_sp, sigaltstack, sys/signal.h)
dnl ##
dnl ## MACHINE CONTEXT IMPLEMENTATION
dnl ##
AC_MSG_PART(Machine Context Implementation)
dnl #
dnl # 1. determine possibilities
dnl #
dnl # check for MCSC method
AC_CHECK_HEADERS(ucontext.h)
AC_CHECK_FUNCTIONS(makecontext swapcontext getcontext setcontext)
AC_CHECK_MCSC(mcsc=yes, mcsc=no)
dnl # check for SJLJ method
AC_CHECK_HEADERS(signal.h)
AC_CHECK_FUNCTIONS(sigsetjmp siglongjmp setjmp longjmp _setjmp _longjmp)
AC_CHECK_FUNCTIONS(sigaltstack sigstack)
AC_CHECK_SJLJ(sjlj=yes, sjlj=no, sjlj_type)
dnl #
dnl # 2. make a general decision
dnl #
if test ".$mcsc" = .yes; then
mctx_mth=mcsc
mctx_dsp=sc
mctx_stk=mc
elif test ".$sjlj" = .yes; then
mctx_mth=sjlj
mctx_dsp=$sjlj_type
mctx_stk=none
AC_IFALLYES(func:sigstack, mctx_stk=ss)
AC_IFALLYES(func:sigaltstack, mctx_stk=sas)
case $mctx_dsp in
sjljlx|sjljisc|sjljw32 ) mctx_stk=none
esac
else
AC_ERROR([no appropriate mctx method found])
fi
dnl #
dnl # 3. allow decision to be overridden by user
dnl #
AC_ARG_WITH(mctx-mth,dnl
[ --with-mctx-mth=ID force mctx method (mcsc,sjlj)],[
case $withval in
mcsc|sjlj ) mctx_mth=$withval ;;
* ) AC_ERROR([invalid mctx method -- allowed: mcsc,sjlj]) ;;
esac
])dnl
AC_ARG_WITH(mctx-dsp,dnl
[ --with-mctx-dsp=ID force mctx dispatching (sc,ssjlj,sjlj,usjlj,sjlje,...)],[
case $withval in
sc|ssjlj|sjlj|usjlj|sjlje|sjljlx|sjljisc|sjljw32 ) mctx_dsp=$withval ;;
* ) AC_ERROR([invalid mctx dispatching -- allowed: sc,ssjlj,sjlj,usjlj,sjlje,sjljlx,sjljisc,sjljw32]) ;;
esac
])dnl
AC_ARG_WITH(mctx-stk,dnl
[ --with-mctx-stk=ID force mctx stack setup (mc,ss,sas,...)],[
case $withval in
mc|ss|sas|none ) mctx_stk=$withval ;;
* ) AC_ERROR([invalid mctx stack setup -- allowed: mc,ss,sas,none]) ;;
esac
])dnl
dnl #
dnl # 4. determine a few additional details
dnl #
dnl # whether sigaltstack has to use stack_t instead of struct sigaltstack
AC_CHECK_TYPEDEF(stack_t, signal.h)
dnl # ibm - test whether we need a separate register stack (IA64).
AC_CHECK_NEED_FOR_SEPARATE_STACK(PTH_NEED_SEPARATE_REGISTER_STACK)
dnl # ibm - end
dnl # direction of stack grow
AC_CHECK_STACKGROWTH(PTH_STACKGROWTH)
if test ".$ac_cv_check_stackgrowth" = ".down"; then
PTH_STACK_GROWTH="down"
else
PTH_STACK_GROWTH="up"
fi
AC_SUBST(PTH_STACK_GROWTH)
dnl # how to specify stacks for the various functions
AC_CHECK_STACKSETUP(makecontext, pth_skaddr_makecontext, pth_sksize_makecontext)
AC_CHECK_STACKSETUP(sigaltstack, pth_skaddr_sigaltstack, pth_sksize_sigaltstack)
AC_CHECK_STACKSETUP(sigstack, pth_skaddr_sigstack, pth_sksize_sigstack)
dnl # how to implement POSIX compliant sig{set,long}jmp()
case $mctx_dsp in [
ssjlj )
pth_sigjmpbuf='sigjmp_buf'
pth_sigsetjmp='sigsetjmp(buf,1)'
pth_siglongjmp='siglongjmp(buf,val)'
;;
sjlj )
pth_sigjmpbuf='jmp_buf'
pth_sigsetjmp='setjmp(buf)'
pth_siglongjmp='longjmp(buf,val)'
;;
usjlj )
pth_sigjmpbuf='jmp_buf'
pth_sigsetjmp='_setjmp(buf)'
pth_siglongjmp='_longjmp(buf,val)'
;;
sjlje )
pth_sigjmpbuf='jmp_buf'
pth_sigsetjmp='setjmp(buf)'
pth_siglongjmp='longjmp(buf,val)'
;;
sjljlx|sjljisc|sjljw32 )
pth_sigjmpbuf='sigjmp_buf'
pth_sigsetjmp='sigsetjmp(buf,1)'
pth_siglongjmp='siglongjmp(buf,val)'
;;
] esac
pth_sigjmpbuf="#define pth_sigjmpbuf $pth_sigjmpbuf"
pth_sigsetjmp="#define pth_sigsetjmp(buf) $pth_sigsetjmp"
pth_siglongjmp="#define pth_siglongjmp(buf,val) $pth_siglongjmp"
AC_SUBST(pth_sigjmpbuf)
AC_SUBST(pth_sigsetjmp)
AC_SUBST(pth_siglongjmp)
dnl #
dnl # 5. export the results
dnl #
AC_DEFINE_UNQUOTED(PTH_MCTX_MTH_use, [PTH_MCTX_MTH_$mctx_mth])
AC_DEFINE_UNQUOTED(PTH_MCTX_DSP_use, [PTH_MCTX_DSP_$mctx_dsp])
AC_DEFINE_UNQUOTED(PTH_MCTX_STK_use, [PTH_MCTX_STK_$mctx_stk])
PTH_MCTX_ID="$mctx_mth/$mctx_dsp/$mctx_stk"
AC_MSG_RESULT([decision on mctx implementation... ${TB}${PTH_MCTX_ID}${TN}])
AC_SUBST(PTH_MCTX_ID)
AC_MSG_VERBOSE([decided mctx method: $mctx_mth])
AC_MSG_VERBOSE([decided mctx dispatching: $mctx_dsp])
AC_MSG_VERBOSE([decided mctx stack setup: $mctx_stk])
AC_MSG_PART(Checking for GLib)
dnl Check for glib2
translit(dnm, m, l) AM_CONDITIONAL(USE_GLIB2, true)
GST_CHECK_FEATURE(GLIB2, [use of glib-2.0 and GObject], , [
PKG_CHECK_MODULES(GLIB2, glib-2.0 gthread-2.0,
HAVE_GLIB2=yes,HAVE_GLIB2=no)
GLIB_LIBS=$GLIB2_LIBS
GLIB_CFLAGS=$GLIB2_CFLAGS
AC_SUBST(GLIB_LIBS)
AC_SUBST(GLIB_CFLAGS)
# glib2 is now the default. so if we don't have it here, then use glib1
if test "x$HAVE_GLIB2" = "xno"; then
AC_MSG_WARN([no glib2 found, falling back to glib1])
fi
], enabled, [
dnl AC_DEFINE(USE_GLIB2)
])
dnl AC_SUBST(USE_GLIB2)
if test x$USE_GLIB2 = xno; then
dnl Check for glib and gtk
AM_PATH_GLIB(1.2.0,,
AC_MSG_ERROR(Cannot find glib: Is glib-config in path?),
glib gmodule gthread)
fi
dnl ## Additional support for some special platform/compiler options
case "$PLATFORM:$CC" in
*-ibm-mvs*:cc | *-ibm-mvs*:c++ )
mvs_extras='-W "c,float(ieee)" -W "c,langlvl(extended)" -W "c,expo,dll"'
PTH_CFLAGS="$PTH_CFLAGS $mvs_extras"
mvs_extras='-W "l,p,map" -W "l,map,list"'
PTH_LDFLAGS="$PTH_LDFLAGS $mvs_extras"
;;
esac
AC_MSG_PART(Output Substitution)
AC_OUTPUT(
Makefile
pth.h
pth_acmac.h
)

236
gst/cothreads/cothread-stack.c
View file

@ -1,236 +0,0 @@
/* Pthread-friendly coroutines with pth
* Copyright (C) 2001 Andy Wingo <wingo@pobox.com>
*
* cothread-stack.c: various methods of allocating cothread stacks
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "cothreads-private.h"
#include "linuxthreads.h"
#include <unistd.h>
#include <sys/resource.h>
typedef enum _cothread_block_state cothread_block_state;
typedef struct _cothread_chunk cothread_chunk;
enum _cothread_block_state
{
COTHREAD_BLOCK_STATE_UNUSED=0,
COTHREAD_BLOCK_STATE_IN_USE
};
struct _cothread_chunk {
cothread_chunk *next;
cothread_block_state *block_states;
char *chunk;
int size;
int reserved_bottom;
gboolean needs_free;
int nblocks;
};
static cothread_chunk* cothread_chunk_new (unsigned long size, gboolean allocate);
static void cothread_chunk_free (cothread_chunk *chunk);
static gboolean cothread_stack_alloc_chunked (cothread_chunk *chunk, char **low, char **high,
cothread_chunk *(*chunk_new)(cothread_chunk*));
static cothread_chunk* cothread_chunk_new_linuxthreads (cothread_chunk* old);
static cothread_chunk* cothread_chunk_new_on_stack (cothread_chunk* old);
gboolean
cothread_stack_alloc_on_heap (char **low, char **high)
{
if (posix_memalign (low, _cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk,
_cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk)) {
g_error ("could not memalign stack");
return FALSE;
}
*high = *low + sizeof (*low) - 1;
return TRUE;
}
gboolean
cothread_stack_alloc_on_gthread_stack (char **low, char **high)
{
cothread_chunk *chunk = NULL;
static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
if (!(chunk = g_static_private_get(&chunk_key))) {
chunk = cothread_chunk_new (_cothreads_config_global->chunk_size, FALSE);
g_static_private_set (&chunk_key, chunk, (GDestroyNotify) cothread_chunk_free);
}
return cothread_stack_alloc_chunked (chunk, low, high, cothread_chunk_new_on_stack);
}
gboolean
cothread_stack_alloc_linuxthreads (char **low, char **high)
{
cothread_chunk *chunk = NULL;
static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
if (!(chunk = g_static_private_get(&chunk_key))) {
chunk = cothread_chunk_new (_cothreads_config_global->chunk_size, FALSE);
g_message ("created new chunk, %p, size=0x%x", chunk->chunk, chunk->size);
g_static_private_set (&chunk_key, chunk, (GDestroyNotify) cothread_chunk_free);
}
return cothread_stack_alloc_chunked (chunk, low, high, cothread_chunk_new_linuxthreads);
}
/* size must be a power of two. */
static cothread_chunk*
cothread_chunk_new (unsigned long size, gboolean allocate)
{
cothread_chunk *ret;
char *sp = CURRENT_STACK_FRAME;
ret = g_new0 (cothread_chunk, 1);
ret->nblocks = _cothreads_config_global->blocks_per_chunk;
ret->block_states = g_new0 (cothread_block_state, ret->nblocks);
if (allocate) {
if (posix_memalign(&ret->chunk, size, size))
g_error ("memalign operation failed");
} else {
/* if we don't allocate the chunk, we must already be in it. */
ret->chunk = (char*) ((unsigned long) sp &~ (size - 1));
#if PTH_STACK_GROWTH > 0
ret->reserved_bottom = sp - ret->chunk;
#else
ret->reserved_bottom = ret->chunk + size - sp;
#endif
}
ret->size = size;
ret->needs_free = allocate;
return ret;
}
/**
* cothread_stack_alloc_chunked:
* @chunk: the chunk for the
* Make a new cothread stack out of a chunk. Chunks are assumed to be aligned on
* boundaries of _cothreads_config_global->chunk_size.
*
* Returns: the new cothread context
*/
/* we assume that the stack is aligned on _cothreads_config_global->chunk_size boundaries */
static gboolean
cothread_stack_alloc_chunked (cothread_chunk *chunk, char **low, char **high,
cothread_chunk *(*chunk_new)(cothread_chunk*))
{
int block;
cothread_chunk *walk, *last;
for (walk=chunk; walk; last=walk, walk=walk->next) {
if (walk->block_states[0] == COTHREAD_BLOCK_STATE_UNUSED) {
walk->block_states[0] = COTHREAD_BLOCK_STATE_IN_USE;
#if PTH_STACK_GROWTH > 0
*low = walk->chunk + walk->reserved_bottom;
*high = walk->chunk + walk->size / walk->nblocks;
#else
*low = walk->chunk + walk->size * (walk->nblocks - 1) / walk->nblocks;
*high = walk->chunk + walk->size - walk->reserved_bottom;
#endif
return TRUE;
}
for (block = 1; block < walk->nblocks; block++) {
if (walk->block_states[block] == COTHREAD_BLOCK_STATE_UNUSED) {
walk->block_states[block] = COTHREAD_BLOCK_STATE_IN_USE;
#if PTH_STACK_GROWTH > 0
*low = walk->chunk + walk->size * block / walk->nblocks;
#else
*low = walk->chunk + walk->size * (walk->nblocks - block - 1) / walk->nblocks;
#endif
*high = *low + walk->size / walk->nblocks;
return TRUE;
}
}
}
if (!chunk_new)
return FALSE;
else
return cothread_stack_alloc_chunked (chunk_new (last), low, high, NULL);
}
static void
cothread_chunk_free (cothread_chunk *chunk)
{
/* FIXME: implement me please */
}
static cothread_chunk*
cothread_chunk_new_linuxthreads (cothread_chunk* old)
{
cothread_chunk *new;
void *pthread_descr;
new = cothread_chunk_new (_cothreads_config_global->chunk_size, TRUE);
pthread_descr = __linuxthreads_self();
#if PTH_STACK_GROWTH > 0
/* we don't really know pthread_descr's size in this case, but we can be
* conservative. it's normally 1K in the down-growing case, so we allocate 2K.
*/
new->reserved_bottom = 2048;
memcpy(new->chunk, pthread_descr, 2048);
#else
new->reserved_bottom = ((unsigned long) pthread_descr | (new->size - 1)) - (unsigned long) pthread_descr;
memcpy(new->chunk + new->size - new->reserved_bottom - 1, pthread_descr, new->reserved_bottom);
#endif
old->next = new;
return new;
}
static cothread_chunk*
cothread_chunk_new_on_stack (cothread_chunk* old)
{
cothread_chunk *new;
void *pthread_descr;
struct rlimit limit;
getrlimit (RLIMIT_STACK, &limit);
g_print ("stack limit: %d\nstack max: %d\n", limit.rlim_cur, limit.rlim_max);
limit.rlim_cur += old->size;
if (setrlimit (RLIMIT_STACK, &limit)) {
perror ("Could not increase the stack size, aborting...");
return NULL;
}
new = cothread_chunk_new (old->size, FALSE);
new->reserved_bottom = 0;
#if PTH_STACK_GROWTH > 0
/* we don't really know pthread_descr's size in this case, but we can be
* conservative. it's normally 1K in the down-growing case, so we allocate 2K.
*/
new->chunk += new->size;
#else
new->chunk -= new->size;
#endif
old->next = new;
return new;
}

43
gst/cothreads/cothreads-private.h
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@ -1,43 +0,0 @@
/* Pthread-friendly coroutines with pth
* Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
*
* cothread-private.h: private prototypes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COTHREAD_PRIVATE_H__
#define __COTHREAD_PRIVATE_H__
#include <cothreads.h>
typedef struct _cothread_private cothread_private;
struct _cothread_private {
int argc;
void **argv;
void (*func) (int argc, void **argv);
};
extern cothreads_config *_cothreads_config_global;
gboolean cothread_stack_alloc_on_gthread_stack (char **low, char **high);
gboolean cothread_stack_alloc_linuxthreads (char **low, char **high);
gboolean cothread_stack_alloc_on_heap (char **low, char **high);
#endif /* __COTHREAD_PRIVATE_H__ */

203
gst/cothreads/cothreads.c
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@ -1,203 +0,0 @@
/* Pthread-friendly coroutines with pth
* Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
*
* cothreads.c: public API implementation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "cothreads-private.h"
#define HAVE_LINUXTHREADS
#ifdef HAVE_LINUXTHREADS
static cothreads_config cothreads_config_default = COTHREADS_CONFIG_LINUXTHREADS_INITIALIZER;
#else
static cothreads_config cothreads_config_default = COTHREADS_CONFIG_GTHREAD_INITIALIZER;
#endif
cothreads_config *_cothreads_config_global = NULL;
static gboolean (*stack_alloc_func) (char**, char**);
static void cothread_private_set (char *sp, void *priv, size_t size);
static void cothread_private_get (char *sp, void *priv, size_t size);
static void cothread_stub (void);
/**
* cothreads_initialized:
*
* Query the state of the cothreads system.
*
* Returns: TRUE if cothreads_init() has already been called, FALSE otherwise
*/
gboolean
cothreads_initialized (void)
{
return (_cothreads_config_global != NULL);
}
/**
* cothreads_init:
* @config: attributes for creation of cothread stacks
*
* Initialize the cothreads system. If @config is NULL, use the default parameters
* detected at compile-time.
*/
void
cothreads_init (cothreads_config *config)
{
static cothreads_config _config;
if (cothreads_initialized()) {
g_warning ("cothread system has already been initialized");
return;
}
/* we don't hold on to *config, we copy it (if it's supplied) */
if (!config)
_config = cothreads_config_default;
else
_config = *config;
_cothreads_config_global = &_config;
switch (_cothreads_config_global->method) {
case COTHREADS_ALLOC_METHOD_MALLOC:
stack_alloc_func = cothread_stack_alloc_on_heap;
break;
case COTHREADS_ALLOC_METHOD_GTHREAD_STACK:
stack_alloc_func = cothread_stack_alloc_on_gthread_stack;
break;
case COTHREADS_ALLOC_METHOD_LINUXTHREADS:
stack_alloc_func = cothread_stack_alloc_linuxthreads;
break;
default:
g_error ("unexpected value for config method %d", _cothreads_config_global->method);
}
}
/**
* cothread_create:
* @func: function to start with this cothread
* @argc: argument count
* @argv: argument vector
*
* Create a new cothread running a given function. You must explictly switch
* into this cothread to give it control. If @func is NULL, a cothread is
* created on the current stack with the current stack pointer.
*
* Returns: A pointer to the new cothread
*/
cothread*
cothread_create (void (*func)(int, void **), int argc, void **argv)
{
char *low, *high;
cothread_private priv;
cothread *ret = g_new0 (cothread, 1);
if (!func) {
/* we are being asked to save the current thread into a new cothread. this
* only happens for the first cothread. */
if (_cothreads_config_global->alloc_cothread_0)
if (!stack_alloc_func (&low, &high))
g_error ("couldn't create cothread 0");
else
g_message ("created cothread 0 with low=%p, high=%p", low, high);
else
g_message ("created cothread 0");
pth_mctx_save (ret);
return ret;
}
if (!stack_alloc_func (&low, &high))
g_error ("could not allocate a new cothread stack");
g_message ("created a cothread with low=%p, high=%p", low, high);
pth_mctx_set (ret, cothread_stub, low, high);
priv.argc = argc;
priv.argv = argv;
priv.func = func;
cothread_private_set (low, &priv, sizeof(priv));
return ret;
}
/**
* cothread_destroy:
* @thread: cothread to destroy
*
* Deallocate any memory used by the cothread data structures.
*/
void
cothread_destroy (cothread *thread)
{
/* FIXME: have method-specific destroy functions. */
g_free (thread);
}
/* the whole 'page size' thing is to allow for the last page of a stack or chunk
* to be mmap'd as a boundary page */
static void
cothread_private_set (char *sp, void *priv, size_t size)
{
char *dest;
#if PTH_STACK_GROWTH > 0
dest = (char*) ((gulong)sp | (_cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk - 1))
- size + 1 - getpagesize();
#else
dest = (char*) ((gulong)sp &~ (_cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk - 1))
+ getpagesize();
#endif
memcpy (dest, priv, size);
}
static void
cothread_private_get (char *sp, void *priv, size_t size)
{
char *src;
#if PTH_STACK_GROWTH > 0
src = (char*) ((gulong)sp | (_cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk - 1))
- size + 1 - getpagesize();
#else
src = (char*) ((gulong)sp &~ (_cothreads_config_global->chunk_size / _cothreads_config_global->blocks_per_chunk - 1))
+ getpagesize();
#endif
memcpy (priv, src, size);
}
static void
cothread_stub (void)
{
cothread_private priv;
cothread_private_get (CURRENT_STACK_FRAME, &priv, sizeof (priv));
priv.func (priv.argc, priv.argv);
g_warning ("we really shouldn't get here");
}

84
gst/cothreads/cothreads.h
View file

@ -1,84 +0,0 @@
/* Pthread-friendly coroutines with pth
* Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
*
* cothread.h: public API
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COTHREAD_H__
#define __COTHREAD_H__
#include <glib.h>
#include <pth_p.h>
#ifndef CURRENT_STACK_FRAME
#define CURRENT_STACK_FRAME ({ char __csf; &__csf; })
#endif /* CURRENT_STACK_FRAME */
typedef pth_mctx_t cothread;
typedef enum _cothreads_alloc_method cothreads_alloc_method;
typedef struct _cothreads_config cothreads_config;
enum _cothreads_alloc_method
{
COTHREADS_ALLOC_METHOD_MALLOC, /* cothread stacks on the heap, one block per chunk */
COTHREADS_ALLOC_METHOD_GTHREAD_STACK, /* cothread stacks within the current gthread's stack */
COTHREADS_ALLOC_METHOD_LINUXTHREADS, /* a hack that allows for linuxthreads compatibility */
};
struct _cothreads_config {
cothreads_alloc_method method; /* the method of allocating new cothread stacks */
int chunk_size; /* size of contiguous chunk of memory for cothread stacks */
int blocks_per_chunk; /* cothreads per chunk */
gboolean alloc_cothread_0; /* if the first cothread needs to be allocated */
};
#define COTHREADS_CONFIG_HEAP_INITIALIZER { \
COTHREADS_ALLOC_METHOD_MALLOC, /* each cothread on the heap */ \
0x20000, /* stack size of 128 kB */ \
1, /* we aren't chunked */ \
FALSE /* nothing special for cothread 0 */ \
}
#define COTHREADS_CONFIG_GTHREAD_INITIALIZER { \
COTHREADS_ALLOC_METHOD_GTHREAD_STACK, /* this is what the old cothreads code does */ \
0x100000, /* only 1 MB due the the FreeBSD defaults */ \
8, /* for a stack size of 128 KB */ \
TRUE /* set up the first chunk */ \
}
#define COTHREADS_CONFIG_LINUXTHREADS_INITIALIZER { \
COTHREADS_ALLOC_METHOD_LINUXTHREADS, /* use the linuxthreads hack */ \
0x200000, /* 2 MB */ \
8, /* for a stack size of 256 KB */ \
TRUE /* set up the first chunk */ \
}
gboolean cothreads_initialized (void);
void cothreads_init (cothreads_config *config);
cothread* cothread_create (void (*func)(int, void**), int argc, void **argv);
void cothread_destroy (cothread *thread);
/* 'old' and 'new' are of type (cothread*) */
#define cothread_switch(old,new) pth_mctx_switch(old,new)
#define cothread_yield(new) pth_mctx_restore(new);
#endif /* __COTHREAD_H__ */

33
gst/cothreads/linuxthreads.h
View file

@ -1,33 +0,0 @@
#ifndef _GNU_SOURCE /* pull in the nonposix static mutex initializers */
#define _GNU_SOURCE
#define __USE_GNU /* just to be sure */
#endif
#include <pthread.h>
#ifndef CURRENT_STACK_FRAME
#define CURRENT_STACK_FRAME ({ char __csf; &__csf; })
#endif /* CURRENT_STACK_FRAME */
#define STACK_SIZE 0x200000
/* this function is only really necessary to get the main thread's
* pthread_descr, as the other threads store the pthread_descr (actually the
* first member of struct _pthread_descr_struct, which points to itself for the
* default non-indirected case) at the top of the stack. */
static inline _pthread_descr __linuxthreads_self()
{
pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
_pthread_descr self;
pthread_mutex_lock (&mutex);
self = mutex.__m_owner;
pthread_mutex_unlock (&mutex);
printf ("pthread_self: %d\n", pthread_self());
printf ("descr: %p\n", self);
printf ("*descr: %p\n", *(int*)self);
return self;
}

196
gst/cothreads/m4/glib.m4
View file

@ -1,196 +0,0 @@
# Configure paths for GLIB
# Owen Taylor 97-11-3
dnl AM_PATH_GLIB([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if "gmodule" or
dnl gthread is specified in MODULES, pass to glib-config
dnl
AC_DEFUN(AM_PATH_GLIB,
[dnl
dnl Get the cflags and libraries from the glib-config script
dnl
AC_ARG_WITH(glib-prefix,[ --with-glib-prefix=PFX Prefix where GLIB is installed (optional)],
glib_config_prefix="$withval", glib_config_prefix="")
AC_ARG_WITH(glib-exec-prefix,[ --with-glib-exec-prefix=PFX Exec prefix where GLIB is installed (optional)],
glib_config_exec_prefix="$withval", glib_config_exec_prefix="")
AC_ARG_ENABLE(glibtest, [ --disable-glibtest Do not try to compile and run a test GLIB program],
, enable_glibtest=yes)
if test x$glib_config_exec_prefix != x ; then
glib_config_args="$glib_config_args --exec-prefix=$glib_config_exec_prefix"
if test x${GLIB_CONFIG+set} != xset ; then
GLIB_CONFIG=$glib_config_exec_prefix/bin/glib-config
fi
fi
if test x$glib_config_prefix != x ; then
glib_config_args="$glib_config_args --prefix=$glib_config_prefix"
if test x${GLIB_CONFIG+set} != xset ; then
GLIB_CONFIG=$glib_config_prefix/bin/glib-config
fi
fi
for module in . $4
do
case "$module" in
gmodule)
glib_config_args="$glib_config_args gmodule"
;;
gthread)
glib_config_args="$glib_config_args gthread"
;;
esac
done
AC_PATH_PROG(GLIB_CONFIG, glib-config, no)
min_glib_version=ifelse([$1], ,0.99.7,$1)
AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)
no_glib=""
if test "$GLIB_CONFIG" = "no" ; then
no_glib=yes
else
GLIB_CFLAGS=`$GLIB_CONFIG $glib_config_args --cflags`
GLIB_LIBS=`$GLIB_CONFIG $glib_config_args --libs`
glib_config_major_version=`$GLIB_CONFIG $glib_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
glib_config_minor_version=`$GLIB_CONFIG $glib_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
glib_config_micro_version=`$GLIB_CONFIG $glib_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_glibtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $GLIB_CFLAGS"
LIBS="$GLIB_LIBS $LIBS"
dnl
dnl Now check if the installed GLIB is sufficiently new. (Also sanity
dnl checks the results of glib-config to some extent
dnl
rm -f conf.glibtest
AC_TRY_RUN([
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
int
main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.glibtest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = g_strdup("$min_glib_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
printf("%s, bad version string\n", "$min_glib_version");
exit(1);
}
if ((glib_major_version != $glib_config_major_version) ||
(glib_minor_version != $glib_config_minor_version) ||
(glib_micro_version != $glib_config_micro_version))
{
printf("\n*** 'glib-config --version' returned %d.%d.%d, but GLIB (%d.%d.%d)\n",
$glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,
glib_major_version, glib_minor_version, glib_micro_version);
printf ("*** was found! If glib-config was correct, then it is best\n");
printf ("*** to remove the old version of GLIB. You may also be able to fix the error\n");
printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
printf("*** required on your system.\n");
printf("*** If glib-config was wrong, set the environment variable GLIB_CONFIG\n");
printf("*** to point to the correct copy of glib-config, and remove the file config.cache\n");
printf("*** before re-running configure\n");
}
else if ((glib_major_version != GLIB_MAJOR_VERSION) ||
(glib_minor_version != GLIB_MINOR_VERSION) ||
(glib_micro_version != GLIB_MICRO_VERSION))
{
printf("*** GLIB header files (version %d.%d.%d) do not match\n",
GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
printf("*** library (version %d.%d.%d)\n",
glib_major_version, glib_minor_version, glib_micro_version);
}
else
{
if ((glib_major_version > major) ||
((glib_major_version == major) && (glib_minor_version > minor)) ||
((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** An old version of GLIB (%d.%d.%d) was found.\n",
glib_major_version, glib_minor_version, glib_micro_version);
printf("*** You need a version of GLIB newer than %d.%d.%d. The latest version of\n",
major, minor, micro);
printf("*** GLIB is always available from ftp://ftp.gtk.org.\n");
printf("***\n");
printf("*** If you have already installed a sufficiently new version, this error\n");
printf("*** probably means that the wrong copy of the glib-config shell script is\n");
printf("*** being found. The easiest way to fix this is to remove the old version\n");
printf("*** of GLIB, but you can also set the GLIB_CONFIG environment to point to the\n");
printf("*** correct copy of glib-config. (In this case, you will have to\n");
printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
printf("*** so that the correct libraries are found at run-time))\n");
}
}
return 1;
}
],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_glib" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$GLIB_CONFIG" = "no" ; then
echo "*** The glib-config script installed by GLIB could not be found"
echo "*** If GLIB was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the GLIB_CONFIG environment variable to the"
echo "*** full path to glib-config."
else
if test -f conf.glibtest ; then
:
else
echo "*** Could not run GLIB test program, checking why..."
CFLAGS="$CFLAGS $GLIB_CFLAGS"
LIBS="$LIBS $GLIB_LIBS"
AC_TRY_LINK([
#include <glib.h>
#include <stdio.h>
], [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding GLIB or finding the wrong"
echo "*** version of GLIB. If it is not finding GLIB, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
echo "***"
echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
echo "*** came with the system with the command"
echo "***"
echo "*** rpm --erase --nodeps gtk gtk-devel" ],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means GLIB was incorrectly installed"
echo "*** or that you have moved GLIB since it was installed. In the latter case, you"
echo "*** may want to edit the glib-config script: $GLIB_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
GLIB_CFLAGS=""
GLIB_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)
rm -f conf.glibtest
])

182
gst/cothreads/m4/gst-feature.m4
View file

@ -1,182 +0,0 @@
dnl Perform a check for a feature for GStreamer
dnl Richard Boulton <richard-alsa@tartarus.org>
dnl Thomas Vander Stichele <thomas@apestaart.org> added useful stuff
dnl Last modification: 25/06/2001
dnl GST_CHECK_FEATURE(FEATURE-NAME, FEATURE-DESCRIPTION,
dnl DEPENDENT-PLUGINS, TEST-FOR-FEATURE,
dnl DISABLE-BY-DEFAULT, ACTION-IF-USE, ACTION-IF-NOTUSE)
dnl
dnl This macro adds a command line argument to enable the user to enable
dnl or disable a feature, and if the feature is enabled, performs a supplied
dnl test to check if the feature is available.
dnl
dnl The test should define HAVE_<FEATURE-NAME> to "yes" or "no" depending
dnl on whether the feature is available.
dnl
dnl The macro will set USE_<FEATURE-NAME> to "yes" or "no" depending on
dnl whether the feature is to be used.
dnl Thomas changed this, so that when USE_<FEATURE-NAME> was already set
dnl to no, then it stays that way.
dnl
dnl The macro will call AM_CONDITIONAL(USE_<<FEATURE-NAME>, ...) to allow
dnl the feature to control what is built in Makefile.ams. If you want
dnl additional actions resulting from the test, you can add them with the
dnl ACTION-IF-USE and ACTION-IF-NOTUSE parameters.
dnl
dnl FEATURE-NAME is the name of the feature, and should be in
dnl purely upper case characters.
dnl FEATURE-DESCRIPTION is used to describe the feature in help text for
dnl the command line argument.
dnl DEPENDENT-PLUGINS lists any plugins which depend on this feature.
dnl TEST-FOR-FEATURE is a test which sets HAVE_<FEATURE-NAME> to "yes"
dnl or "no" depending on whether the feature is
dnl available.
dnl DISABLE-BY-DEFAULT if "disabled", the feature is disabled by default,
dnl if any other value, the feature is enabled by default.
dnl ACTION-IF-USE any extra actions to perform if the feature is to be
dnl used.
dnl ACTION-IF-NOTUSE any extra actions to perform if the feature is not to
dnl be used.
dnl
dnl
dnl thomas :
dnl we also added a history.
dnl GST_PLUGINS_YES will contain all plugins to be built
dnl that were checked through GST_CHECK_FEATURE
dnl GST_PLUGINS_NO will contain those that won't be built
AC_DEFUN(GST_CHECK_FEATURE,
[dnl
builtin(define, [gst_endisable], ifelse($5, [disabled], [enable], [disable]))dnl
dnl if it is set to NO, then don't even consider it for building
NOUSE=
if test "x$USE_[$1]" = "xno"; then
NOUSE="yes"
fi
AC_ARG_ENABLE(translit([$1], A-Z, a-z),
[ ]builtin(format, --%-26s gst_endisable %s, gst_endisable-translit([$1], A-Z, a-z), [$2]ifelse([$3],,,: [$3])),
[ case "${enableval}" in
yes) USE_[$1]=yes;;
no) USE_[$1]=no;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
esac],
[ USE_$1=]ifelse($5, [disabled], [no], [yes])) dnl DEFAULT
dnl *** set it back to no if it was preset to no
if test "x$NOUSE" = "xyes"; then
USE_[$1]="no"
AC_MSG_WARN(*** $3 pre-configured not to be built)
fi
NOUSE=
dnl *** If it's enabled
if test x$USE_[$1] = xyes; then
gst_check_save_LIBS=$LIBS
gst_check_save_LDFLAGS=$LDFLAGS
gst_check_save_CFLAGS=$CFLAGS
gst_check_save_CPPFLAGS=$CPPFLAGS
gst_check_save_CXXFLAGS=$CXXFLAGS
HAVE_[$1]=no
$4
LIBS=$gst_check_save_LIBS
LDFLAGS=$gst_check_save_LDFLAGS
CFLAGS=$gst_check_save_CFLAGS
CPPFLAGS=$gst_check_save_CPPFLAGS
CXXFLAGS=$gst_check_save_CXXFLAGS
dnl If it isn't found, unset USE_[$1]
if test x$HAVE_[$1] = xno; then
USE_[$1]=no
fi
fi
dnl *** Warn if it's disabled or not found
if test x$USE_[$1] = xyes; then
ifelse([$6], , :, [$6])
GST_PLUGINS_YES="$GST_PLUGINS_YES \n\t[$3]"
else
ifelse([$3], , :, [AC_MSG_NOTICE(
These plugins will not be built: [$3]
)])
GST_PLUGINS_NO="$GST_PLUGINS_NO \n\t[$3]"
ifelse([$7], , :, [$7])
fi
dnl *** Define the conditional as appropriate
AM_CONDITIONAL(USE_[$1], test x$USE_[$1] = xyes)
])
dnl Use a -config program which accepts --cflags and --libs parameters
dnl to set *_CFLAGS and *_LIBS and check existence of a feature.
dnl Richard Boulton <richard-alsa@tartarus.org>
dnl Last modification: 26/06/2001
dnl GST_CHECK_CONFIGPROG(FEATURE-NAME, CONFIG-PROG-FILENAME, MODULES)
dnl
dnl This check was written for GStreamer: it should be renamed and checked
dnl for portability if you decide to use it elsewhere.
dnl
AC_DEFUN(GST_CHECK_CONFIGPROG,
[
AC_PATH_PROG([$1]_CONFIG, [$2], no)
if test x$[$1]_CONFIG = xno; then
[$1]_LIBS=
[$1]_CFLAGS=
HAVE_[$1]=no
else
[$1]_LIBS=`[$2] --libs [$3]`
[$1]_CFLAGS=`[$2] --cflags [$3]`
HAVE_[$1]=yes
fi
AC_SUBST([$1]_LIBS)
AC_SUBST([$1]_CFLAGS)
])
dnl Use AC_CHECK_LIB and AC_CHECK_HEADER to do both tests at once
dnl sets HAVE_module if we have it
dnl Richard Boulton <richard-alsa@tartarus.org>
dnl Last modification: 26/06/2001
dnl GST_CHECK_LIBHEADER(FEATURE-NAME, LIB NAME, LIB FUNCTION, EXTRA LD FLAGS,
dnl HEADER NAME, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
dnl
dnl This check was written for GStreamer: it should be renamed and checked
dnl for portability if you decide to use it elsewhere.
dnl
AC_DEFUN(GST_CHECK_LIBHEADER,
[
AC_CHECK_LIB([$2], [$3], HAVE_[$1]=yes, HAVE_[$1]=no,[$4])
if test "x$HAVE_[$1]" = "xyes"; then
AC_CHECK_HEADER([$5], :, HAVE_[$1]=no)
if test "x$HAVE_[$1]" = "xyes"; then
dnl execute what needs to be
ifelse([$6], , :, [$6])
else
ifelse([$7], , :, [$7])
fi
else
AC_MSG_WARN([$1] not found)
fi
AC_SUBST(HAVE_[$1])
]
)
dnl
dnl Add a subsystem --disable flag and all the necessary symbols and substitions
dnl
dnl GST_SUBSYSTEM_DISABLE(SYSNAME, [subsystem name])
dnl
AC_DEFUN(GST_SUBSYSTEM_DISABLE,
[AC_ARG_ENABLE(translit([$1], A-Z, a-z),
[ ]builtin(format, --disable-%-17s disable %s, translit([$1], A-Z, a-z), $2),
[ case "${enableval}" in
yes) GST_DISABLE_[$1]=no ;;
no) GST_DISABLE_[$1]=yes ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
esac],
[GST_DISABLE_[$1]=no]) dnl Default value
if test x$GST_DISABLE_[$1] = xyes; then
AC_DEFINE(GST_DISABLE_[$1], 1, [Disable $2])
GST_DISABLE_[$1]_DEFINE=-DGST_DISABLE_[$1]
fi
AM_CONDITIONAL(GST_DISABLE_[$1], test x$GST_DISABLE_[$1] = xyes)
AC_SUBST(GST_DISABLE_[$1]_DEFINE)
GST_SUBSYSTEM_DISABLE_DEFINES="$GST_SUBSYTEM_DISABLE_DEFINES $GST_DISABLE_[$1]_DEFINE"
])

15
gst/cothreads/m4/linuxthreads.m4
View file

@ -1,15 +0,0 @@
dnl Check for LinuxThreads
dnl COTHREADS_CHECK_LINUXTHREADS
dnl no arguments
AC_DEFUN([COTHREADS_CHECK_LINUXTHREADS], [
AC_CACHE_CHECK([for LinuxThreads],
[cothreads_cv_linuxthreads],
[AC_EGREP_CPP(pthread_kill_other_threads_np,
[#include <pthread.h>],
[cothreads_cv_linuxthreads=yes],
[cothreads_cv_linuxthreads=no])
])
if test $cothreads_cv_linuxthreads = yes; then
AC_DEFINE(HAVE_LINUXTHREADS,1,[if you have LinuxThreads])
fi
])

56
gst/cothreads/m4/pkg.m4
View file

@ -1,56 +0,0 @@
dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
dnl also defines GSTUFF_PKG_ERRORS on error
AC_DEFUN(PKG_CHECK_MODULES, [
succeeded=no
if test -z "$PKG_CONFIG"; then
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
fi
if test "$PKG_CONFIG" = "no" ; then
echo "*** The pkg-config script could not be found. Make sure it is"
echo "*** in your path, or set the PKG_CONFIG environment variable"
echo "*** to the full path to pkg-config."
echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
else
if ! $PKG_CONFIG --atleast-pkgconfig-version 0.7.0; then
echo "*** Your version of pkg-config is too old. You need version 0.7.0 or newer."
echo "*** See http://www.freedesktop.org/software/pkgconfig"
else
AC_MSG_CHECKING(for $2)
if $PKG_CONFIG --exists "$2" ; then
AC_MSG_RESULT(yes)
succeeded=yes
AC_MSG_CHECKING($1_CFLAGS)
$1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
AC_MSG_RESULT($$1_CFLAGS)
AC_MSG_CHECKING($1_LIBS)
$1_LIBS=`$PKG_CONFIG --libs "$2"`
AC_MSG_RESULT($$1_LIBS)
else
$1_CFLAGS=""
$1_LIBS=""
## If we have a custom action on failure, don't print errors, but
## do set a variable so people can do so.
$1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
ifelse([$4], ,echo $$1_PKG_ERRORS,)
fi
AC_SUBST($1_CFLAGS)
AC_SUBST($1_LIBS)
fi
fi
if test $succeeded = yes; then
ifelse([$3], , :, [$3])
else
ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
fi
])

1765
gst/cothreads/m4/pth-acinclude.m4
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File diff suppressed because it is too large Load diff

73
gst/cothreads/pth.h.in
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@ -1,73 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth.h: Pth public API definitions
*/
/* ``What you see is all you get.''
-- Brian Kernighan */
/* hacked, needs updated docs - wingo <wingo@pobox.com> */
#ifndef _PTH_H_
#define _PTH_H_
/* the library version */
#ifndef PTH_VERSION_STR
#define PTH_VERSION_STR "@PTH_VERSION_STR@"
#endif
#ifndef PTH_VERSION_HEX
#define PTH_VERSION_HEX @PTH_VERSION_HEX@
#endif
#ifndef PTH_VERSION
#define PTH_VERSION PTH_VERSION_HEX
#endif
/* essential headers */
#include <sys/types.h> /* for ssize_t, off_t */
#include <sys/signal.h> /* for sigset_t */
/* essential values */
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
#ifndef NUL
#define NUL '\0'
#endif
#ifndef NULL
#define NULL (void *)0
#endif
/* bitmask generation */
#define _BIT(n) (1<<(n))
/* C++ support */
#ifdef __cplusplus
#define BEGIN_DECLARATION extern "C" {
#define END_DECLARATION }
#else
#define BEGIN_DECLARATION /*nop*/
#define END_DECLARATION /*nop*/
#endif
#endif /* _PTH_H_ */

64
gst/cothreads/pth_acmac.h.in
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@ -1,64 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_acmac.h: Autoconf macros
*/
#ifndef _PTH_ACMAC_H_
#define _PTH_ACMAC_H_
/* sig{set,long}jmp macros */
@pth_sigjmpbuf@
@pth_sigsetjmp@
@pth_siglongjmp@
/* stack setup macros */
#define pth_skaddr(func,skaddr,sksize) pth_skaddr_##func(skaddr,sksize)
#define pth_sksize(func,skaddr,sksize) pth_sksize_##func(skaddr,sksize)
@pth_skaddr_sigstack@
@pth_sksize_sigstack@
@pth_skaddr_sigaltstack@
@pth_sksize_sigaltstack@
@pth_skaddr_makecontext@
@pth_sksize_makecontext@
/* mctx compile defines */
#define PTH_MCTX_MTH(which) (PTH_MCTX_MTH_use == (PTH_MCTX_MTH_##which))
#define PTH_MCTX_DSP(which) (PTH_MCTX_DSP_use == (PTH_MCTX_DSP_##which))
#define PTH_MCTX_STK(which) (PTH_MCTX_STK_use == (PTH_MCTX_STK_##which))
#define PTH_MCTX_MTH_mcsc 1
#define PTH_MCTX_MTH_sjlj 2
#define PTH_MCTX_DSP_sc 1
#define PTH_MCTX_DSP_ssjlj 2
#define PTH_MCTX_DSP_sjlj 3
#define PTH_MCTX_DSP_usjlj 4
#define PTH_MCTX_DSP_sjlje 5
#define PTH_MCTX_DSP_sjljlx 6
#define PTH_MCTX_DSP_sjljisc 7
#define PTH_MCTX_DSP_sjljw32 8
#define PTH_MCTX_STK_mc 1
#define PTH_MCTX_STK_ss 2
#define PTH_MCTX_STK_sas 3
#define PTH_MCTX_STK_none 4
#endif /* _PTH_ACMAC_H_ */

78
gst/cothreads/pth_debug.c
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@ -1,78 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_debug.c: Pth debugging support
*/
/* ``MY HACK: This universe.
Just one little problem:
core keeps dumping.''
-- Unknown */
#include "pth_p.h"
#if cpp
#ifndef PTH_DEBUG
#define pth_debug1(a1) /* NOP */
#define pth_debug2(a1, a2) /* NOP */
#define pth_debug3(a1, a2, a3) /* NOP */
#define pth_debug4(a1, a2, a3, a4) /* NOP */
#define pth_debug5(a1, a2, a3, a4, a5) /* NOP */
#define pth_debug6(a1, a2, a3, a4, a5, a6) /* NOP */
#else
#define pth_debug1(a1) pth_debug(__FILE__, __LINE__, 1, a1)
#define pth_debug2(a1, a2) pth_debug(__FILE__, __LINE__, 2, a1, a2)
#define pth_debug3(a1, a2, a3) pth_debug(__FILE__, __LINE__, 3, a1, a2, a3)
#define pth_debug4(a1, a2, a3, a4) pth_debug(__FILE__, __LINE__, 4, a1, a2, a3, a4)
#define pth_debug5(a1, a2, a3, a4, a5) pth_debug(__FILE__, __LINE__, 5, a1, a2, a3, a4, a5)
#define pth_debug6(a1, a2, a3, a4, a5, a6) pth_debug(__FILE__, __LINE__, 6, a1, a2, a3, a4, a5, a6)
#endif /* PTH_DEBUG */
#endif /* cpp */
intern void pth_debug(const char *file, int line, int argc, const char *fmt, ...)
{
va_list ap;
static char str[1024];
size_t n;
errno_shield {
va_start(ap, fmt);
if (file != NULL)
snprintf(str, sizeof(str), "%d:%s:%04d: ", (int)getpid(), file, line);
else
str[0] = NUL;
n = strlen(str);
if (argc == 1)
strncpy (str+n, fmt, sizeof(str)-n);
else
vsnprintf(str+n, sizeof(str)-n, fmt, ap);
va_end(ap);
n = strlen(str);
str[n++] = '\n';
write(STDERR_FILENO, str, n);
}
return;
}

56
gst/cothreads/pth_errno.c
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@ -1,56 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_errno.c: Pth errno support
*/
/* Steinbach's Guideline for Systems Programming:
``Never test for an error condition
you don't know how to handle.'' */
#include "pth_p.h"
#if cpp
/* enclose errno in a block */
#define errno_shield \
for ( pth_errno_storage = errno, \
pth_errno_flag = TRUE; \
pth_errno_flag; \
errno = pth_errno_storage, \
pth_errno_flag = FALSE )
/* return plus setting an errno value */
#if defined(PTH_DEBUG)
#define return_errno(return_val,errno_val) \
do { errno = (errno_val); \
pth_debug4("return 0x%lx with errno %d(\"%s\")", \
(unsigned long)(return_val), (errno), strerror((errno))); \
return (return_val); } while (0)
#else
#define return_errno(return_val,errno_val) \
do { errno = (errno_val); return (return_val); } while (0)
#endif
#endif /* cpp */
intern int pth_errno_storage = 0;
intern int pth_errno_flag = 0;

557
gst/cothreads/pth_mctx.c
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@ -1,557 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_mctx.c: Pth machine context handling
*/
/* ``If you can't do it in
ANSI C, it isn't worth doing.''
-- Unknown */
#include "pth_p.h"
#if cpp
/*
* machine context state structure
*
* In `jb' the CPU registers, the program counter, the stack
* pointer and (usually) the signals mask is stored. When the
* signal mask cannot be implicitly stored in `jb', it's
* alternatively stored explicitly in `sigs'. The `error' stores
* the value of `errno'.
*/
#if PTH_MCTX_MTH(mcsc)
#include <ucontext.h>
#endif
typedef struct pth_mctx_st pth_mctx_t;
struct pth_mctx_st {
#if PTH_MCTX_MTH(mcsc)
ucontext_t uc;
#elif PTH_MCTX_MTH(sjlj)
pth_sigjmpbuf jb;
#else
#error "unknown mctx method"
#endif
sigset_t sigs;
#if PTH_MCTX_DSP(sjlje)
sigset_t block;
#endif
int error;
};
/*
** ____ MACHINE STATE SWITCHING ______________________________________
*/
/*
* save the current machine context
*/
#if PTH_MCTX_MTH(mcsc)
#define pth_mctx_save(mctx) \
( (mctx)->error = errno, \
getcontext(&(mctx)->uc) )
#elif PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjlje)
#define pth_mctx_save(mctx) \
( (mctx)->error = errno, \
sigprocmask(SIG_SETMASK, &((mctx)->block), NULL), \
pth_sigsetjmp((mctx)->jb) )
#elif PTH_MCTX_MTH(sjlj)
#define pth_mctx_save(mctx) \
( (mctx)->error = errno, \
pth_sigsetjmp((mctx)->jb) )
#else
#error "unknown mctx method"
#endif
/*
* restore the current machine context
* (at the location of the old context)
*/
#if PTH_MCTX_MTH(mcsc)
#define pth_mctx_restore(mctx) \
( errno = (mctx)->error, \
(void)setcontext(&(mctx)->uc) )
#elif PTH_MCTX_MTH(sjlj)
#define pth_mctx_restore(mctx) \
( errno = (mctx)->error, \
(void)pth_siglongjmp((mctx)->jb, 1) )
#else
#error "unknown mctx method"
#endif
/*
* restore the current machine context
* (at the location of the new context)
*/
#if PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjlje)
#define pth_mctx_restored(mctx) \
sigprocmask(SIG_SETMASK, &((mctx)->sigs), NULL)
#else
#define pth_mctx_restored(mctx) \
/*nop*/
#endif
/*
* switch from one machine context to another
*/
#define SWITCH_DEBUG_LINE \
"==== THREAD CONTEXT SWITCH ==========================================="
#ifdef PTH_DEBUG
#define _pth_mctx_switch_debug pth_debug(NULL, 0, 1, SWITCH_DEBUG_LINE);
#else
#define _pth_mctx_switch_debug /*NOP*/
#endif
#if PTH_MCTX_MTH(mcsc)
#define pth_mctx_switch(old,new) \
_pth_mctx_switch_debug \
swapcontext(&((old)->uc), &((new)->uc));
#elif PTH_MCTX_MTH(sjlj)
#define pth_mctx_switch(old,new) \
_pth_mctx_switch_debug \
if (pth_mctx_save(old) == 0) \
pth_mctx_restore(new); \
pth_mctx_restored(old);
#else
#error "unknown mctx method"
#endif
#endif /* cpp */
/*
** ____ MACHINE STATE INITIALIZATION ________________________________
*/
#if PTH_MCTX_MTH(mcsc)
/*
* VARIANT 1: THE STANDARDIZED SVR4/SUSv2 APPROACH
*
* This is the preferred variant, because it uses the standardized
* SVR4/SUSv2 makecontext(2) and friends which is a facility intended
* for user-space context switching. The thread creation therefore is
* straight-foreward.
*/
intern int pth_mctx_set(
pth_mctx_t *mctx, void (*func)(void), char *sk_addr_lo, char *sk_addr_hi)
{
/* fetch current context */
if (getcontext(&(mctx->uc)) != 0)
return FALSE;
/* remove parent link */
mctx->uc.uc_link = NULL;
/* configure new stack */
mctx->uc.uc_stack.ss_sp = pth_skaddr(makecontext, sk_addr_lo, sk_addr_hi-sk_addr_lo);
mctx->uc.uc_stack.ss_size = pth_sksize(makecontext, sk_addr_lo, sk_addr_hi-sk_addr_lo);
mctx->uc.uc_stack.ss_flags = 0;
/* configure startup function (with no arguments) */
makecontext(&(mctx->uc), func, 0+1);
return TRUE;
}
#elif PTH_MCTX_MTH(sjlj) &&\
!PTH_MCTX_DSP(sjljlx) &&\
!PTH_MCTX_DSP(sjljisc) &&\
!PTH_MCTX_DSP(sjljw32)
/*
* VARIANT 2: THE SIGNAL STACK TRICK
*
* This uses sigstack/sigaltstack() and friends and is really the
* most tricky part of Pth. When you understand the following
* stuff you're a good Unix hacker and then you've already
* understood the gory ingredients of Pth. So, either welcome to
* the club of hackers, or do yourself a favor and skip this ;)
*
* The ingenious fact is that this variant runs really on _all_ POSIX
* compliant systems without special platform kludges. But be _VERY_
* carefully when you change something in the following code. The slightest
* change or reordering can lead to horribly broken code. Really every
* function call in the following case is intended to be how it is, doubt
* me...
*
* For more details we strongly recommend you to read the companion
* paper ``Portable Multithreading -- The Signal Stack Trick for
* User-Space Thread Creation'' from Ralf S. Engelschall. A copy of the
* draft of this paper you can find in the file rse-pmt.ps inside the
* GNU Pth distribution.
*/
#if !defined(SA_ONSTACK) && defined(SV_ONSTACK)
#define SA_ONSTACK SV_ONSTACK
#endif
#if !defined(SS_DISABLE) && defined(SA_DISABLE)
#define SS_DISABLE SA_DISABLE
#endif
#if PTH_MCTX_STK(sas) && !defined(HAVE_SS_SP) && defined(HAVE_SS_BASE)
#define ss_sp ss_base
#endif
static volatile jmp_buf mctx_trampoline;
static volatile pth_mctx_t mctx_caller;
static volatile sig_atomic_t mctx_called;
static pth_mctx_t * volatile mctx_creating;
static void (* volatile mctx_creating_func)(void);
static volatile sigset_t mctx_creating_sigs;
static void pth_mctx_set_trampoline(int);
static void pth_mctx_set_bootstrap(void);
/* initialize a machine state */
intern int pth_mctx_set(
pth_mctx_t *mctx, void (*func)(void), char *sk_addr_lo, char *sk_addr_hi)
{
struct sigaction sa;
struct sigaction osa;
#if PTH_MCTX_STK(sas) && defined(HAVE_STACK_T)
stack_t ss;
stack_t oss;
#elif PTH_MCTX_STK(sas)
struct sigaltstack ss;
struct sigaltstack oss;
#elif PTH_MCTX_STK(ss)
struct sigstack ss;
struct sigstack oss;
#else
#error "unknown mctx stack setup"
#endif
sigset_t osigs;
sigset_t sigs;
pth_debug1("pth_mctx_set: enter");
/*
* Preserve the SIGUSR1 signal state, block SIGUSR1,
* and establish our signal handler. The signal will
* later transfer control onto the signal stack.
*/
sigemptyset(&sigs);
sigaddset(&sigs, SIGUSR1);
sigprocmask(SIG_BLOCK, &sigs, &osigs);
sa.sa_handler = pth_mctx_set_trampoline;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_ONSTACK;
if (sigaction(SIGUSR1, &sa, &osa) != 0)
return FALSE;
/*
* Set the new stack.
*
* For sigaltstack we're lucky [from sigaltstack(2) on
* FreeBSD 3.1]: ``Signal stacks are automatically adjusted
* for the direction of stack growth and alignment
* requirements''
*
* For sigstack we have to decide ourself [from sigstack(2)
* on Solaris 2.6]: ``The direction of stack growth is not
* indicated in the historical definition of struct sigstack.
* The only way to portably establish a stack pointer is for
* the application to determine stack growth direction.''
*/
#if PTH_MCTX_STK(sas)
ss.ss_sp = pth_skaddr(sigaltstack, sk_addr_lo, sk_addr_hi-sk_addr_lo);
ss.ss_size = pth_sksize(sigaltstack, sk_addr_lo, sk_addr_hi-sk_addr_lo);
ss.ss_flags = 0;
if (sigaltstack(&ss, &oss) < 0)
return FALSE;
#elif PTH_MCTX_STK(ss)
ss.ss_sp = pth_skaddr(sigstack, sk_addr_lo, sk_addr_hi-sk_addr_lo);
ss.ss_onstack = 0;
if (sigstack(&ss, &oss) < 0)
return FALSE;
#else
#error "unknown mctx stack setup"
#endif
/*
* Now transfer control onto the signal stack and set it up.
* It will return immediately via "return" after the setjmp()
* was performed. Be careful here with race conditions. The
* signal can be delivered the first time sigsuspend() is
* called.
*/
mctx_called = FALSE;
kill(getpid(), SIGUSR1);
sigfillset(&sigs);
sigdelset(&sigs, SIGUSR1);
while (!mctx_called)
sigsuspend(&sigs);
/*
* Inform the system that we are back off the signal stack by
* removing the alternative signal stack. Be careful here: It
* first has to be disabled, before it can be removed.
*/
#if PTH_MCTX_STK(sas)
sigaltstack(NULL, &ss);
ss.ss_flags = SS_DISABLE;
if (sigaltstack(&ss, NULL) < 0)
return FALSE;
sigaltstack(NULL, &ss);
if (!(ss.ss_flags & SS_DISABLE))
return_errno(FALSE, EIO);
if (!(oss.ss_flags & SS_DISABLE))
sigaltstack(&oss, NULL);
#elif PTH_MCTX_STK(ss)
if (sigstack(&oss, NULL))
return FALSE;
#endif
/*
* Restore the old SIGUSR1 signal handler and mask
*/
sigaction(SIGUSR1, &osa, NULL);
sigprocmask(SIG_SETMASK, &osigs, NULL);
/*
* Initialize additional ingredients of the machine
* context structure.
*/
#if PTH_MCTX_DSP(sjlje)
sigemptyset(&mctx->block);
#endif
sigemptyset(&mctx->sigs);
mctx->error = 0;
/*
* Tell the trampoline and bootstrap function where to dump
* the new machine context, and what to do afterwards...
*/
mctx_creating = mctx;
mctx_creating_func = func;
memcpy((void *)&mctx_creating_sigs, &osigs, sizeof(sigset_t));
/*
* Now enter the trampoline again, but this time not as a signal
* handler. Instead we jump into it directly. The functionally
* redundant ping-pong pointer arithmentic is neccessary to avoid
* type-conversion warnings related to the `volatile' qualifier and
* the fact that `jmp_buf' usually is an array type.
*/
if (pth_mctx_save((pth_mctx_t *)&mctx_caller) == 0)
longjmp(*((jmp_buf *)&mctx_trampoline), 1);
/*
* Ok, we returned again, so now we're finished
*/
pth_debug1("pth_mctx_set: leave");
return TRUE;
}
/* trampoline signal handler */
static void pth_mctx_set_trampoline(int sig)
{
/*
* Save current machine state and _immediately_ go back with
* a standard "return" (to stop the signal handler situation)
* to let him remove the stack again. Notice that we really
* have do a normal "return" here, or the OS would consider
* the thread to be running on a signal stack which isn't
* good (for instance it wouldn't allow us to spawn a thread
* from within a thread, etc.)
*
* The functionally redundant ping-pong pointer arithmentic is again
* neccessary to avoid type-conversion warnings related to the
* `volatile' qualifier and the fact that `jmp_buf' usually is an
* array type.
*
* Additionally notice that we INTENTIONALLY DO NOT USE pth_mctx_save()
* here. Instead we use a plain setjmp(3) call because we have to make
* sure the alternate signal stack environment is _NOT_ saved into the
* machine context (which can be the case for sigsetjmp(3) on some
* platforms).
*/
if (setjmp(*((jmp_buf *)&mctx_trampoline)) == 0) {
pth_debug1("pth_mctx_set_trampoline: return to caller");
mctx_called = TRUE;
return;
}
pth_debug1("pth_mctx_set_trampoline: reentered from caller");
/*
* Ok, the caller has longjmp'ed back to us, so now prepare
* us for the real machine state switching. We have to jump
* into another function here to get a new stack context for
* the auto variables (which have to be auto-variables
* because the start of the thread happens later). Else with
* PIC (i.e. Position Independent Code which is used when PTH
* is built as a shared library) most platforms would
* horrible core dump as experience showed.
*/
pth_mctx_set_bootstrap();
}
/* boot function */
static void pth_mctx_set_bootstrap(void)
{
pth_mctx_t * volatile mctx_starting;
void (* volatile mctx_starting_func)(void);
/*
* Switch to the final signal mask (inherited from parent)
*/
sigprocmask(SIG_SETMASK, (sigset_t *)&mctx_creating_sigs, NULL);
/*
* Move startup details from static storage to local auto
* variables which is necessary because it has to survive in
* a local context until the thread is scheduled for real.
*/
mctx_starting = mctx_creating;
mctx_starting_func = mctx_creating_func;
/*
* Save current machine state (on new stack) and
* go back to caller until we're scheduled for real...
*/
pth_debug1("pth_mctx_set_trampoline_jumpin: switch back to caller");
pth_mctx_switch((pth_mctx_t *)mctx_starting, (pth_mctx_t *)&mctx_caller);
/*
* The new thread is now running: GREAT!
* Now we just invoke its init function....
*/
pth_debug1("pth_mctx_set_trampoline_jumpin: reentered from scheduler");
mctx_starting_func();
abort();
}
#elif PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjljlx)
/*
* VARIANT 3: LINUX SPECIFIC JMP_BUF FIDDLING
*
* Oh hell, I really love it when Linux guys talk about their "POSIX
* compliant system". It's far away from POSIX compliant, IMHO. Autoconf
* finds sigstack/sigaltstack() on Linux, yes. But it doesn't work. Why?
* Because on Linux below version 2.2 and glibc versions below 2.1 these
* two functions are nothing more than silly stub functions which always
* return just -1. Very useful, yeah...
*/
#include <features.h>
intern int pth_mctx_set(
pth_mctx_t *mctx, void (*func)(void), char *sk_addr_lo, char *sk_addr_hi)
{
pth_mctx_save(mctx);
#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
&& __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(JB_PC) && defined(JB_SP)
mctx->jb[0].__jmpbuf[JB_PC] = (int)func;
mctx->jb[0].__jmpbuf[JB_SP] = (int)sk_addr_hi;
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \
&& __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined(__mc68000__)
mctx->jb[0].__jmpbuf[0].__aregs[0] = (long int)func;
mctx->jb[0].__jmpbuf[0].__sp = (int *)sk_addr_hi;
#elif defined(__GNU_LIBRARY__) && defined(__i386__)
mctx->jb[0].__jmpbuf[0].__pc = (char *)func;
mctx->jb[0].__jmpbuf[0].__sp = sk_addr_hi;
#else
#error "Unsupported Linux (g)libc version and/or platform"
#endif
sigemptyset(&mctx->sigs);
mctx->error = 0;
return TRUE;
}
/*
* VARIANT 4: INTERACTIVE SPECIFIC JMP_BUF FIDDLING
*
* No wonder, Interactive Unix (ISC) 4.x contains Microsoft code, so
* it's clear that this beast lacks both sigstack and sigaltstack (about
* makecontext we not even have to talk). So our only chance is to
* fiddle with it's jmp_buf ingredients, of course. We support only i386
* boxes.
*/
#elif PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjljisc)
intern int
pth_mctx_set(pth_mctx_t *mctx, void (*func)(void),
char *sk_addr_lo, char *sk_addr_hi)
{
pth_mctx_save(mctx);
#if i386
mctx->jb[4] = (int)sk_addr_hi - sizeof(mctx->jb);
mctx->jb[5] = (int)func;
#else
#error "Unsupported ISC architecture"
#endif
sigemptyset(&mctx->sigs);
mctx->error = 0;
return TRUE;
}
/*
* VARIANT 5: WIN32 SPECIFIC JMP_BUF FIDDLING
*
* Oh hell, Win32 has setjmp(3), but no sigstack(2) or sigaltstack(2).
* So we have to fiddle around with the jmp_buf here too...
*/
#elif PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjljw32)
intern int
pth_mctx_set(pth_mctx_t *mctx, void (*func)(void),
char *sk_addr_lo, char *sk_addr_hi)
{
pth_mctx_save(mctx);
#if i386
mctx->jb[7] = (int)sk_addr_hi;
mctx->jb[8] = (int)func;
#else
#error "Unsupported Win32 architecture"
#endif
sigemptyset(&mctx->sigs);
mctx->error = 0;
return TRUE;
}
/*
* VARIANT X: JMP_BUF FIDDLING FOR ONE MORE ESOTERIC OS
* Add the jmp_buf fiddling for your esoteric OS here...
*
#elif PTH_MCTX_MTH(sjlj) && PTH_MCTX_DSP(sjljeso)
intern int
pth_mctx_set(pth_mctx_t *mctx, void (*func)(void),
char *sk_addr_lo, char *sk_addr_hi)
{
pth_mctx_save(mctx);
sigemptyset(&mctx->sigs);
mctx->error = 0;
...start hacking here...
mctx->.... = func;
mctx->.... = sk_addr_hi;
mctx->.... = sk_addr_lo;
return TRUE;
}
*/
#else
#error "unknown mctx method"
#endif

70
gst/cothreads/pth_p.h.in
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@ -1,70 +0,0 @@
/*
** GNU Pth - The GNU Portable Threads
** Copyright (c) 1999-2001 Ralf S. Engelschall <rse@engelschall.com>
**
** This file is part of GNU Pth, a non-preemptive thread scheduling
** library which can be found at http://www.gnu.org/software/pth/.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
** USA, or contact Ralf S. Engelschall <rse@engelschall.com>.
**
** pth_p.h: Pth private API definitions
*/
#ifndef _PTH_P_H_
#define _PTH_P_H_
/* mandatory system headers */
#include <errno.h>
/*
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <time.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/socket.h>
*/
/* library version */
#define _PTH_VERS_C_AS_HEADER_
#include "pth_vers.c"
#undef _PTH_VERS_C_AS_HEADER_
/* public API headers */
#define _PTH_PRIVATE
#include "pth.h"
#undef _PTH_PRIVATE
/* autoconf defines and macros */
#include "pth_acdef.h"
#include "pth_acmac.h"
/* generated contents */
BEGIN_DECLARATION
==#==
END_DECLARATION
#endif /* _PTH_P_H_ */

46
gst/cothreads/pth_vers.c
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@ -1,46 +0,0 @@
/*
** pth_vers.c -- Version Information for GNU Pth (syntax: C/C++)
** [automatically generated and maintained by GNU shtool]
*/
#ifdef _PTH_VERS_C_AS_HEADER_
#ifndef _PTH_VERS_C_
#define _PTH_VERS_C_
#define PTH_INTERNAL_VERSION 0x104200
typedef struct {
const int v_hex;
const char *v_short;
const char *v_long;
const char *v_tex;
const char *v_gnu;
const char *v_web;
const char *v_sccs;
const char *v_rcs;
} pth_internal_version_t;
extern pth_internal_version_t pth_internal_version;
#endif /* _PTH_VERS_C_ */
#else /* _PTH_VERS_C_AS_HEADER_ */
#define _PTH_VERS_C_AS_HEADER_
#include "pth_vers.c"
#undef _PTH_VERS_C_AS_HEADER_
pth_internal_version_t pth_internal_version = {
0x104200,
"1.4.0",
"1.4.0 (24-Mar-2001)",
"This is GNU Pth, Version 1.4.0 (24-Mar-2001)",
"GNU Pth 1.4.0 (24-Mar-2001)",
"GNU Pth/1.4.0",
"@(#)GNU Pth 1.4.0 (24-Mar-2001)",
"$Id$"
};
#endif /* _PTH_VERS_C_AS_HEADER_ */

1492
gst/cothreads/shtool
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File diff suppressed because it is too large Load diff

83
gst/cothreads/test-cothreads.c
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@ -1,83 +0,0 @@
#include <cothreads.h>
#define METHOD COTHREADS_CONFIG_GTHREAD_INITIALIZER
#define NGTHREADS 2
#define NCOTHREADS 5
//#define USE_GTHREADS
void co_thread (int argc, void **argv)
{
int pthreadnum = *(int*)argv[0];
int cothreadnum = *(int*)argv[1];
cothread *main = argv[2];
cothread *self = argv[3];
printf ("%d.%d: sleeping 1s...\n", pthreadnum, cothreadnum);
sleep (1);
printf ("%d.%d: returning to cothread 0\n", pthreadnum, cothreadnum);
cothread_switch (self, main);
}
void *pthread (void* _pthreadnum)
{
int pthreadnum = *(int*) _pthreadnum;
int cothreadnum = 0;
cothread *main, *new;
void *argv[4];
main = cothread_create (NULL, 0, NULL);
while (cothreadnum++ < NCOTHREADS) {
printf ("%d: spawning a new cothread\n", pthreadnum);
argv[0] = &pthreadnum;
argv[1] = &cothreadnum;
argv[2] = main;
argv[3] = cothread_create (co_thread, 4, argv);
new = argv[3];
printf ("%d: switching to cothread %d...\n", pthreadnum, cothreadnum);
cothread_switch (main, new);
}
return NULL;
}
int main (int argc, char *argv[])
{
GThread *thread[NGTHREADS];
int pthreadnum[4], i;
cothreads_config config = METHOD;
g_thread_init(NULL);
cothreads_init(&config);
#ifdef USE_GTHREADS
cothread_create (NULL, 0, NULL); /* just to see where the stack is */
#endif
#ifdef USE_GTHREADS
printf ("0: creating the gthreads\n");
for (i=0; i<NGTHREADS; i++) {
pthreadnum[i] = i+1;
thread[i] = g_thread_create (pthread, &pthreadnum[i], TRUE, NULL);
}
printf ("0: joining the gthreads\n");
for (i=0; i<NGTHREADS; i++) {
g_thread_join (thread[i]);
}
#else
printf ("0: calling the pthread function directly\n");
pthreadnum[0] = 1;
pthread (&pthreadnum[0]);
#endif
printf ("exiting\n");
exit (0);
}

70
gst/cothreads/test-pth-pthreads.c
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@ -1,70 +0,0 @@
#include "pth_p.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include "linuxthreads.h"
pth_mctx_t main_context;
int threadnum = 0;
void cothread (void)
{
printf ("1.1: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("1.1: sleeping 2s in thread %d...\n", threadnum);
sleep (2);
printf ("1.1: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("1.1: returning to cothread 0\n");
pth_mctx_restore (&main_context);
}
void *pthread (void* unused)
{
pth_mctx_t ctx;
char *skaddr;
printf ("1: saving the main context\n");
printf ("1: current stack frame: %p\n", CURRENT_STACK_FRAME);
pth_mctx_save (&main_context);
while (1) {
skaddr = alloca (64 * 1024);
printf ("1: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("1: spawning a new cothread\n");
pth_mctx_set (&ctx, cothread, skaddr, skaddr + 64 * 1024);
printf ("1: new thread's stack frame will be in the heap at %p\n", skaddr);
printf ("1: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("1: switching to cothread %d...\n", ++threadnum);
printf ("1: current stack frame: %p\n", CURRENT_STACK_FRAME);
pth_mctx_switch (&main_context, &ctx);
printf ("1: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("1: back now, looping\n");
}
}
int main (int argc, char *argv[])
{
pthread_t tid;
printf ("0: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("0: creating the pthread\n");
// pthread_create (&tid, NULL, pthread, NULL);
// printf ("0: %d\n", pthread_self());
pthread(NULL);
// printf ("joining the pthread\n");
// pthread_join (tid, NULL);
printf ("0: current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("0: take five...\n");
sleep(5);
printf ("0 current stack frame: %p\n", CURRENT_STACK_FRAME);
printf ("exiting\n");
exit (0);
}

62
gst/cothreads/test-pth-pthreads2.c
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@ -1,62 +0,0 @@
#include <stdio.h>
#include "linuxthreads.h"
#include "pth_p.h"
pth_mctx_t main_context;
int threadnum = 0;
void cothread ()
{
printf ("1.%d: current stack frame: %p\n", threadnum, CURRENT_STACK_FRAME);
printf ("1.%d: sleeping 2s...\n", threadnum);
sleep (2);
printf ("1.%d: returning to cothread 1.0\n");
pth_mctx_restore (&main_context);
}
void *pthread (void *unused)
{
char *sp = CURRENT_STACK_FRAME;
char *cothread_stack;
pth_mctx_t ctx;
_pthread_descr descr;
descr = __linuxthreads_self();
printf ("sp: %p\n", sp);
printf ("STACK_SIZE: %p\n", STACK_SIZE);
printf ("sp | STACK_SIZE: 0x%x\n", (int) sp | STACK_SIZE );
printf ("(sp | (STACK_SIZE-1))+1 - 1K: 0x%x\n", ((((int)sp | (STACK_SIZE-1))+1) - 1024));
printf ("*(sp | (STACK_SIZE-1))+1 - 1K: %p\n", *(int*)((((long int)sp | (STACK_SIZE-1))+1) - 1024));
while (threadnum < 10) {
if (posix_memalign (&cothread_stack, STACK_SIZE, STACK_SIZE)) {
printf ("could not malloc a chunk of aligned memory\n");
exit (-1);
}
printf ("1: setting *%p = %p\n", cothread_stack + STACK_SIZE - 1024, descr);
memcpy(cothread_stack + STACK_SIZE - 1024, descr, 1024);
pth_mctx_save (&main_context);
printf ("1: spawning new thread, bottom = %p\n", cothread_stack);
pth_mctx_set (&ctx, cothread, cothread_stack, cothread_stack + STACK_SIZE - 1024);
printf ("1: switching to cothread %d...\n", ++threadnum);
pth_mctx_switch (&main_context, &ctx);
}
printf ("1: back, returning...\n");
return NULL;
}
int main (int argc, char *argv[])
{
pthread_t tid;
pthread_create (&tid, NULL, pthread, NULL);
pthread_join (tid, NULL);
__linuxthreads_self();
exit (0);
}

36
gst/cothreads/test-pth.c
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@ -1,36 +0,0 @@
#include "pth_p.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
pth_mctx_t main_context;
void thread_1 (void)
{
printf ("sleeping 5s in thread 1...\n");
sleep (5);
printf ("returning to thread 0\n");
pth_mctx_restore (&main_context);
}
int main (int argc, char *argv[])
{
pth_mctx_t ctx;
char *skaddr;
pth_mctx_save (&main_context);
skaddr = malloc (64 * 1024);
pth_mctx_set (&ctx, thread_1, skaddr, skaddr + 64 * 1024);
printf ("switching to thread 1...");
pth_mctx_switch (&main_context, &ctx);
printf ("back now, exiting.\n");
exit (0);
}

61
gst/cothreads/test-pthreads.c
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@ -1,61 +0,0 @@
#include <stdio.h>
#include "linuxthreads.h"
#include <sys/resource.h>
#include <unistd.h>
/* this function is only really necessary to get the main thread's
* pthread_descr, as the other threads store the pthread_descr (actually the
* first member of struct _pthread_descr_struct, which points to itself for the
* default (non-indirected) case) at the top of the stack. */
static _pthread_descr linuxthreads_self()
{
pthread_mutexattr_t mutexattr;
pthread_mutex_t mutex;
_pthread_descr self;
pthread_mutexattr_init (&mutexattr);
pthread_mutexattr_setkind_np (&mutexattr, PTHREAD_MUTEX_ERRORCHECK_NP);
pthread_mutex_init (&mutex, &mutexattr);
pthread_mutex_lock (&mutex);
self = mutex.__m_owner;
pthread_mutex_unlock (&mutex);
printf ("pthread_self: %d\n", pthread_self());
printf ("descr: %p\n", self);
printf ("*descr: %p\n", *(int*)self);
return self;
}
void *pthread (void *unused)
{
char *sp = CURRENT_STACK_FRAME;
linuxthreads_self();
printf ("sp: %p\n", sp);
printf ("sp | 0x020000: 0x%x\n", (int) sp | 0x020000 );
printf ("(sp | (0x020000-1))+1 - 1K: 0x%x\n", ((((int)sp | (STACK_SIZE-1))+1) - 1024));
printf ("*(sp | (0x020000-1))+1 - 1K: %p\n", *(int*)((((long int)sp | (STACK_SIZE-1))+1) - 1024));
printf ("(sp &~ (0x020000-1))+1: 0x%x\n", (((int)sp &~ (STACK_SIZE-1))+1));
return NULL;
}
int main (int argc, char *argv[])
{
pthread_t tid;
int i;
struct rlimit limit;
for (i=0; i<5; i++) {
pthread_create (&tid, NULL, pthread, NULL);
sleep(1);
}
linuxthreads_self();
getrlimit (RLIMIT_STACK, &limit);
printf ("\nstack size: %d\nmax stack sizeL %d\n", limit.rlim_cur, limit.rlim_max);
exit (0);
}