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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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259c8c394c
Original commit message from CVS:
some compile fixes, api changes, and i added the ability to create new chunks on the
stack, which can extend the main thread's stack up to 8M under linuxthreads. thanks
to billh for the {set,get}rlimit tip.
on the other hand, there's a nasty bug in cothreads when they are run without gthreads
that i'm still tracking down. that's the last bug though, at this point.
the commit is to syn the repository with my working copy before moving cothreads to a
separate module.
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
#include <cothreads.h>
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#define METHOD COTHREADS_CONFIG_GTHREAD_INITIALIZER
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#define NGTHREADS 2
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#define NCOTHREADS 5
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//#define USE_GTHREADS
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void co_thread (int argc, void **argv)
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{
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int pthreadnum = *(int*)argv[0];
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int cothreadnum = *(int*)argv[1];
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cothread *main = argv[2];
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cothread *self = argv[3];
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printf ("%d.%d: sleeping 1s...\n", pthreadnum, cothreadnum);
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sleep (1);
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printf ("%d.%d: returning to cothread 0\n", pthreadnum, cothreadnum);
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cothread_switch (self, main);
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}
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void *pthread (void* _pthreadnum)
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{
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int pthreadnum = *(int*) _pthreadnum;
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int cothreadnum = 0;
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cothread *main, *new;
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void *argv[4];
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main = cothread_create (NULL, 0, NULL);
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while (cothreadnum++ < NCOTHREADS) {
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printf ("%d: spawning a new cothread\n", pthreadnum);
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argv[0] = &pthreadnum;
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argv[1] = &cothreadnum;
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argv[2] = main;
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argv[3] = cothread_create (co_thread, 4, argv);
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new = argv[3];
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printf ("%d: switching to cothread %d...\n", pthreadnum, cothreadnum);
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cothread_switch (main, new);
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}
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return NULL;
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}
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int main (int argc, char *argv[])
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{
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GThread *thread[NGTHREADS];
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int pthreadnum[4], i;
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cothreads_config config = METHOD;
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g_thread_init(NULL);
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cothreads_init(&config);
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#ifdef USE_GTHREADS
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cothread_create (NULL, 0, NULL); /* just to see where the stack is */
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#endif
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#ifdef USE_GTHREADS
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printf ("0: creating the gthreads\n");
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for (i=0; i<NGTHREADS; i++) {
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pthreadnum[i] = i+1;
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thread[i] = g_thread_create (pthread, &pthreadnum[i], TRUE, NULL);
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}
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printf ("0: joining the gthreads\n");
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for (i=0; i<NGTHREADS; i++) {
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g_thread_join (thread[i]);
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}
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#else
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printf ("0: calling the pthread function directly\n");
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pthreadnum[0] = 1;
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pthread (&pthreadnum[0]);
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#endif
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printf ("exiting\n");
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exit (0);
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}
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