#include <pthread.h>
-#if defined(__FreeBSD__)
-#include "pthread_np.h"
-#define cpu_set_t cpuset_t
-#endif
-
#include <limits.h>
#include <semaphore.h>
#include <errno.h>
void *param;
pvoid_f_pvoid_t start_routine;
} s_xbt_os_thread_t;
-static xbt_os_thread_t main_thread = NULL;
-
-/* thread-specific data containing the xbt_os_thread_t structure */
-static int thread_mod_inited = 0;
-
-/* frees the xbt_os_thread_t corresponding to the current thread */
-static void xbt_os_thread_free_thread_data(xbt_os_thread_t thread)
-{
- if (thread == main_thread) /* just killed main thread */
- main_thread = NULL;
- free(thread);
-}
-
-void xbt_os_thread_mod_preinit(void)
-{
- if (thread_mod_inited)
- return;
-
- main_thread = xbt_new(s_xbt_os_thread_t, 1);
- main_thread->param = NULL;
- main_thread->start_routine = NULL;
-
- thread_mod_inited = 1;
-}
-
-void xbt_os_thread_mod_postexit(void)
-{
- free(main_thread);
- main_thread = NULL;
- thread_mod_inited = 0;
-}
-
-/** Calls pthread_atfork() if present, and raise an exception otherwise.
- *
- * The only known user of this wrapper is mmalloc_preinit(), but it is absolutely mandatory there:
- * when used with tesh, mmalloc *must* be mutex protected and resistant to forks.
- * This functionality is the only way to get it working (by ensuring that the mutex is consistently released on forks)
- */
-
-/* this function is critical to tesh+mmalloc, don't mess with it */
-int xbt_os_thread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
-{
- return pthread_atfork(prepare, parent, child);
-}
-
-static void *wrapper_start_routine(void *s)
-{
- xbt_os_thread_t t = s;
-
- return t->start_routine(t->param);
-}
-
-xbt_os_thread_t xbt_os_thread_create(pvoid_f_pvoid_t start_routine, void* param)
-{
- xbt_os_thread_t res_thread = xbt_new(s_xbt_os_thread_t, 1);
- res_thread->start_routine = start_routine;
- res_thread->param = param;
-
- int errcode = pthread_create(&(res_thread->t), NULL, wrapper_start_routine, res_thread);
- xbt_assert(errcode == 0, "pthread_create failed: %s", strerror(errcode));
-
- return res_thread;
-}
-
-/** Bind the thread to the given core, if possible.
- *
- * If pthread_setaffinity_np is not usable on that (non-gnu) platform, this function does nothing.
- */
-int xbt_os_thread_bind(XBT_ATTRIB_UNUSED xbt_os_thread_t thread, XBT_ATTRIB_UNUSED int cpu)
-{
- int errcode = 0;
-#if HAVE_PTHREAD_SETAFFINITY
- pthread_t pthread = thread->t;
- cpu_set_t cpuset;
- CPU_ZERO(&cpuset);
- CPU_SET(cpu, &cpuset);
- errcode = pthread_setaffinity_np(pthread, sizeof(cpu_set_t), &cpuset);
-#endif
- return errcode;
-}
-
-void xbt_os_thread_join(xbt_os_thread_t thread, void **thread_return)
-{
- int errcode = pthread_join(thread->t, thread_return);
-
- xbt_assert(errcode==0, "pthread_join failed: %s", strerror(errcode));
- xbt_os_thread_free_thread_data(thread);
-}
/****** mutex related functions ******/
typedef struct xbt_os_mutex_ {
