configure.ac: Changes to remove POSIXisms (mmap in this case) and to build DLLs on Windows.

Original commit message from CVS:
* configure.ac: Changes to remove POSIXisms (mmap in this case)
and to build DLLs on Windows.
* gst/Makefile.am:
* gst/elements/gstfilesrc.c: (gst_filesrc_get),
(gst_filesrc_open_file):
* gst/schedulers/Makefile.am:

ChangeLog

@@ -1,3 +1,12 @@
+2004-04-13  David Schleef  <ds@schleef.org>
+
+	* configure.ac: Changes to remove POSIXisms (mmap in this case)
+	and to build DLLs on Windows.
+	* gst/Makefile.am:
+	* gst/elements/gstfilesrc.c: (gst_filesrc_get),
+	(gst_filesrc_open_file):
+	* gst/schedulers/Makefile.am:
+
 2004-04-13  David Schleef  <ds@schleef.org>
 
 	* gst/gstcaps.c: (gst_caps_structure_fixate_field_nearest_int),

configure.ac

@@ -183,6 +183,16 @@ AC_MSG_RESULT(no)
 AC_MSG_RESULT(no)
 ])
 
+dnl check for mmap
+AC_FUNC_MMAP()
+if test "$ac_cv_func_mmap_fixed_mapped" = "yes" ; then
+  GST_DISABLE_OMEGA_COTHREADS=no
+else
+  GST_DISABLE_OMEGA_COTHREADS=yes
+fi
+dnl for future --disabling, maybe.  Right now, it depends on HAVE_MMAP
+AM_CONDITIONAL(GST_DISABLE_OMEGA_COTHREADS, test "x$GST_DISABLE_OMEGA_COTHREADS" = "xyes")
+
 dnl check for makecontext and define HAVE_MAKECONTEXT if we have it
 AC_CHECK_MCSC()
 if test "$ac_cv_check_mcsc" = "yes"; then
@@ -217,6 +227,11 @@ if test x$enable_gcov = xyes ; then
 fi
 AM_CONDITIONAL(GST_GCOV_ENABLED, test x$enable_gcov = xyes)
 
+dnl Check for some compiler flags that optimize our code.
+dnl Only enable this for CVS builds for now
+if test "x$GST_CVS" = "xyes"; then
+  AS_COMPILER_FLAG(-fno-common,GST_INT_CFLAGS="$GST_INT_CFLAGS -fno-common",)
+fi
 
 dnl Check for essential libraries first:
 dnl ====================================
@@ -550,7 +565,7 @@ GST_INT_CFLAGS="$GST_INT_CFLAGS -I\$(top_srcdir)/libs -I\$(top_srcdir)/include"
 AC_SUBST(GST_CFLAGS, "$LIBGST_CFLAGS $GST_INT_CFLAGS")
 AC_SUBST(GST_LIBS, "$LIBGST_LIBS $GST_INT_LIBS")
 
-GST_PLUGIN_LDFLAGS="-module -avoid-version"
+GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex [_]*\(gst_\|Gst\|GST_\).*"
 AC_SUBST(GST_PLUGIN_LDFLAGS, "$GST_PLUGIN_LDFLAGS")
 
 

gst/Makefile.am

@@ -1,5 +1,10 @@
 lib_LTLIBRARIES = libgstreamer-@GST_MAJORMINOR@.la
+AS_LIBTOOL_LIB = libgstreamer-@GST_MAJORMINOR@
+if GST_DISABLE_OMEGA_COTHREADS
+noinst_LTLIBRARIES =
+else
 noinst_LTLIBRARIES = libcothreads.la
+endif
 
 if HAVE_CPU_I386
 GSTARCH_SRCS = gstcpuid_i386.s
@@ -135,7 +140,7 @@ BUILT_SOURCES = \
         $(built_header_make)		\
         $(built_source_make)
 # CLEANFILES is for files generated by make
-CLEANFILES = $(built_header_make) $(built_source_make)
+CLEANFILES = $(built_header_make) $(built_source_make) $(as_dll_cleanfiles)
 # DISTCLEANFILES is for files generated by configure
 DISTCLEANFILES = $(built_header_configure)
                                                                                 
@@ -148,8 +153,9 @@ libgstreamer_@GST_MAJORMINOR@_la_CFLAGS = \
 libgstreamer_@GST_MAJORMINOR@_la_LIBADD = \
 	$(LIBGST_LIBS) $(GST_PARSE_LIBADD) $(GST_REGISTRY_LIBADD) $(VALGRIND_LIBS)
 libgstreamer_@GST_MAJORMINOR@_la_LDFLAGS = \
-	@GST_LT_LDFLAGS@ -version-info @GST_LIBVERSION@ 
+	@GST_LT_LDFLAGS@ -version-info @GST_LIBVERSION@ \
-
+	-export-symbols-regex [_]*\(gst_\|Gst\|GST_\).* \
+	$(as_libtool_LDFLAGS)
 
 libgstreamer_@GST_MAJORMINOR@includedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst
 
@@ -215,9 +221,13 @@ noinst_HEADERS = 		\
 	gstarch.h		\
 	cothreads.h		
 
-# the compiler shoots cothreads.c in the head at -O6
+if GST_DISABLE_OMEGA_COTHREADS
+#libcothreads_la_SOURCES =
+#libcothreads_la_CFLAGS =
+else
 libcothreads_la_SOURCES = cothreads.c
 libcothreads_la_CFLAGS = $(libgstreamer_@GST_MAJORMINOR@_la_CFLAGS) 
+endif
 
 
 gstmarshal.h: gstmarshal.list
@@ -248,4 +258,13 @@ gstenumtypes.c: $(gst_headers)
 	--vtail "      { 0, NULL, NULL }\n    };\n    etype = g_@type@_register_static (\"@EnumName@\", values);\n  }\n  return etype;\n}\n" \
 	$^ > gstenumtypes.c
 
-EXTRA_DIST = ROADMAP
+noinst_DATA = $(as_libtool_noinst_DATA_files)
+
+EXTRA_DIST = ROADMAP $(as_libtool_EXTRA_DIST)
+
+install-data-local: as-libtool-install-data-local
+
+uninstall-local: as-libtool-uninstall-local
+
+include $(top_srcdir)/common/as-libtool.mak
+

gst/elements/gstfilesrc.c

@@ -31,7 +31,9 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#ifdef HAVE_MMAP
 #include <sys/mman.h>
+#endif
 #include <errno.h>
 #include <string.h>
 
@@ -357,6 +359,7 @@ gst_filesrc_get_property (GObject * object, guint prop_id, GValue * value,
   }
 }
 
+#ifdef HAVE_MMAP
 static void
 gst_filesrc_free_parent_mmap (GstBuffer * buf)
 {
@@ -377,7 +380,9 @@ gst_filesrc_free_parent_mmap (GstBuffer * buf)
 
   GST_BUFFER_DATA (buf) = NULL;
 }
+#endif
 
+#ifdef HAVE_MMAP
 static GstBuffer *
 gst_filesrc_map_region (GstFileSrc * src, off_t offset, size_t size)
 {
@@ -425,7 +430,9 @@ gst_filesrc_map_region (GstFileSrc * src, off_t offset, size_t size)
 
   return buf;
 }
+#endif
 
+#ifdef HAVE_MMAP
 static GstBuffer *
 gst_filesrc_map_small_region (GstFileSrc * src, off_t offset, size_t size)
 {
@@ -457,7 +464,9 @@ gst_filesrc_map_small_region (GstFileSrc * src, off_t offset, size_t size)
 
   return gst_filesrc_map_region (src, offset, size);
 }
+#endif
 
+#ifdef HAVE_MMAP
 /**
  * gst_filesrc_get_mmap:
  * @pad: #GstPad to push a buffer from
@@ -593,6 +602,7 @@ gst_filesrc_get_mmap (GstFileSrc * src)
   src->curoffset += GST_BUFFER_SIZE (buf);
   return buf;
 }
+#endif
 
 static GstBuffer *
 gst_filesrc_get_read (GstFileSrc * src)
@@ -669,12 +679,15 @@ gst_filesrc_get (GstPad * pad)
       return GST_DATA (gst_event_new (GST_EVENT_EOS));
     }
   }
-
+#ifdef HAVE_MMAP
   if (src->using_mmap) {
     return GST_DATA (gst_filesrc_get_mmap (src));
   } else {
     return GST_DATA (gst_filesrc_get_read (src));
   }
+#else
+  return GST_DATA (gst_filesrc_get_read (src));
+#endif
 }
 
 /* TRUE if the filesize of the file was updated */
@@ -736,13 +749,15 @@ gst_filesrc_open_file (GstFileSrc * src)
     /* find the file length */
     src->filelen = stat_results.st_size;
 
+    src->using_mmap = FALSE;
+#ifdef HAVE_MMAP
     /* allocate the first mmap'd region */
     src->mapbuf = gst_filesrc_map_region (src, 0, src->mapsize);
-    if (src->mapbuf == NULL) {
+    if (src->mapbuf != NULL) {
-      src->using_mmap = FALSE;
-    } else {
       src->using_mmap = TRUE;
     }
+#endif
+
 
     src->curoffset = 0;
 

gst/schedulers/Makefile.am

@@ -1,18 +1,28 @@
 plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
 
-plugin_LTLIBRARIES = \
+if GST_DISABLE_OMEGA_COTHREADS
+omegaschedulers =
+else
+omegaschedulers = \
 	libgstbasicomegascheduler.la \
+	libgstentryomegascheduler.la \
+	libgstoptomegascheduler.la
+endif
+
+plugin_LTLIBRARIES = \
+	$(omegaschedulers) \
 	libgstbasicgthreadscheduler.la \
 	libgstentrygthreadscheduler.la \
-	libgstentryomegascheduler.la \
 	libgstoptscheduler.la \
-	libgstoptomegascheduler.la \
 	libgstoptgthreadscheduler.la
 
+if GST_DISABLE_OMEGA_COTHREADS
+else
 libgstbasicomegascheduler_la_SOURCES = gstbasicscheduler.c 
 libgstbasicomegascheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_OMEGA
 libgstbasicomegascheduler_la_LIBADD = ../libcothreads.la
 libgstbasicomegascheduler_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+endif
 
 libgstbasicgthreadscheduler_la_SOURCES = gstbasicscheduler.c 
 libgstbasicgthreadscheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_GTHREAD
@@ -22,19 +32,25 @@ libgstentrygthreadscheduler_la_SOURCES = entryscheduler.c
 libgstentrygthreadscheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_GTHREAD
 libgstentrygthreadscheduler_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
+if GST_DISABLE_OMEGA_COTHREADS
+else
 libgstentryomegascheduler_la_SOURCES = entryscheduler.c 
 libgstentryomegascheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_OMEGA
 libgstentryomegascheduler_la_LIBADD = ../libcothreads.la
 libgstentryomegascheduler_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+endif
 
 libgstoptscheduler_la_SOURCES = gstoptimalscheduler.c 
 libgstoptscheduler_la_CFLAGS = $(GST_CFLAGS) 
 libgstoptscheduler_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
+if GST_DISABLE_OMEGA_COTHREADS
+else
 libgstoptomegascheduler_la_SOURCES = gstoptimalscheduler.c 
 libgstoptomegascheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_OMEGA -DUSE_COTHREADS
 libgstoptomegascheduler_la_LIBADD = ../libcothreads.la
 libgstoptomegascheduler_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+endif
 
 libgstoptgthreadscheduler_la_SOURCES = gstoptimalscheduler.c 
 libgstoptgthreadscheduler_la_CFLAGS = $(GST_CFLAGS) -D_COTHREADS_GTHREAD -DUSE_COTHREADS

plugins/elements/gstfilesrc.c

@@ -31,7 +31,9 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#ifdef HAVE_MMAP
 #include <sys/mman.h>
+#endif
 #include <errno.h>
 #include <string.h>
 
@@ -357,6 +359,7 @@ gst_filesrc_get_property (GObject * object, guint prop_id, GValue * value,
   }
 }
 
+#ifdef HAVE_MMAP
 static void
 gst_filesrc_free_parent_mmap (GstBuffer * buf)
 {
@@ -377,7 +380,9 @@ gst_filesrc_free_parent_mmap (GstBuffer * buf)
 
   GST_BUFFER_DATA (buf) = NULL;
 }
+#endif
 
+#ifdef HAVE_MMAP
 static GstBuffer *
 gst_filesrc_map_region (GstFileSrc * src, off_t offset, size_t size)
 {
@@ -425,7 +430,9 @@ gst_filesrc_map_region (GstFileSrc * src, off_t offset, size_t size)
 
   return buf;
 }
+#endif
 
+#ifdef HAVE_MMAP
 static GstBuffer *
 gst_filesrc_map_small_region (GstFileSrc * src, off_t offset, size_t size)
 {
@@ -457,7 +464,9 @@ gst_filesrc_map_small_region (GstFileSrc * src, off_t offset, size_t size)
 
   return gst_filesrc_map_region (src, offset, size);
 }
+#endif
 
+#ifdef HAVE_MMAP
 /**
  * gst_filesrc_get_mmap:
  * @pad: #GstPad to push a buffer from
@@ -593,6 +602,7 @@ gst_filesrc_get_mmap (GstFileSrc * src)
   src->curoffset += GST_BUFFER_SIZE (buf);
   return buf;
 }
+#endif
 
 static GstBuffer *
 gst_filesrc_get_read (GstFileSrc * src)
@@ -669,12 +679,15 @@ gst_filesrc_get (GstPad * pad)
       return GST_DATA (gst_event_new (GST_EVENT_EOS));
     }
   }
-
+#ifdef HAVE_MMAP
   if (src->using_mmap) {
     return GST_DATA (gst_filesrc_get_mmap (src));
   } else {
     return GST_DATA (gst_filesrc_get_read (src));
   }
+#else
+  return GST_DATA (gst_filesrc_get_read (src));
+#endif
 }
 
 /* TRUE if the filesize of the file was updated */
@@ -736,13 +749,15 @@ gst_filesrc_open_file (GstFileSrc * src)
     /* find the file length */
     src->filelen = stat_results.st_size;
 
+    src->using_mmap = FALSE;
+#ifdef HAVE_MMAP
     /* allocate the first mmap'd region */
     src->mapbuf = gst_filesrc_map_region (src, 0, src->mapsize);
-    if (src->mapbuf == NULL) {
+    if (src->mapbuf != NULL) {
-      src->using_mmap = FALSE;
-    } else {
       src->using_mmap = TRUE;
     }
+#endif
+
 
     src->curoffset = 0;