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9ea4df4ce7
Original commit message from CVS: fixed a number of bugs, added support for cothread-private data and functions of the form void (*func) (int argc, void **argv) the test app demonstrates the thread-safety of the cothreads lib this is shaping up to be pretty solid.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* Pthread-friendly coroutines with pth
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* Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
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*
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* cothread.h: public API
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __COTHREAD_H__
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#define __COTHREAD_H__
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#include <glib.h>
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#include <pth_p.h>
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#ifndef CURRENT_STACK_FRAME
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#define CURRENT_STACK_FRAME ({ char __csf; &__csf; })
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#endif /* CURRENT_STACK_FRAME */
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typedef pth_mctx_t cothread;
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typedef enum _cothread_attr_method cothread_attr_method;
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typedef struct _cothread_attr cothread_attr;
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enum _cothread_attr_method
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{
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COTHREAD_ATTR_METHOD_MALLOC, /* cothread stacks on the heap, one block per chunk */
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COTHREAD_ATTR_METHOD_GTHREAD_STACK, /* cothread stacks within the current gthread's stack */
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COTHREAD_ATTR_METHOD_LINUXTHREADS, /* a hack that allows for linuxthreads compatibility */
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};
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struct _cothread_attr {
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cothread_attr_method method; /* the method of allocating new cothread stacks */
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int chunk_size; /* size of contiguous chunk of memory for cothread stacks */
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int blocks_per_chunk; /* cothreads per chunk */
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gboolean alloc_cothread_0; /* if the first cothread needs to be allocated */
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};
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gboolean cothreads_initialized (void);
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void cothreads_init (cothread_attr *attr);
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cothread* cothread_create (void (*func)(int, void**), int argc, void **argv);
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void cothread_destroy (cothread *thread);
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/* 'old' and 'new' are of type (cothread*) */
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#define cothread_switch(old,new) pth_mctx_switch(old,new)
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#define cothread_yield(new) pth_mctx_restore(new);
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#endif /* __COTHREAD_H__ */
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