/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include "src/internal_config.h"
+#ifdef HAVE_PTHREAD_SETAFFINITY
+#define _GNU_SOURCE
+#include <sched.h>
+#endif
+
+#include <pthread.h>
+#include <limits.h>
+#include <semaphore.h>
+#include <errno.h>
+
#if defined(WIN32)
#elif defined(__MACH__) && defined(__APPLE__)
#include <stdint.h>
#include <unistd.h>
#endif
-#include "src/internal_config.h"
#include "xbt/sysdep.h"
#include "xbt/ex.h"
-#include "src/xbt/ex_interface.h" /* We play crude games with exceptions */
+#include "src/xbt/ex_interface.h" /* We play crude games with exceptions */
#include "src/portable.h"
-#include "xbt/xbt_os_time.h" /* Portable time facilities */
-#include "xbt/xbt_os_thread.h" /* This module */
-#include "src/xbt_modinter.h" /* Initialization/finalization of this module */
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync_os, xbt,
- "Synchronization mechanism (OS-level)");
+#include "xbt/xbt_os_time.h" /* Portable time facilities */
+#include "xbt/xbt_os_thread.h" /* This module */
+#include "src/xbt_modinter.h" /* Initialization/finalization of this module */
-/* ********************************* PTHREAD IMPLEMENTATION ************************************ */
-#include <pthread.h>
-#include <limits.h>
-#include <semaphore.h>
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync_os, xbt, "Synchronization mechanism (OS-level)");
-#ifdef CORE_BINDING
-#define _GNU_SOURCE
-#include <sched.h>
-#endif
/* use named sempahore when sem_init() does not work */
#ifndef HAVE_SEM_INIT
void xbt_os_thread_mod_preinit(void)
{
- int errcode;
-
if (thread_mod_inited)
return;
- if ((errcode = pthread_key_create(&xbt_self_thread_key, NULL)))
- THROWF(system_error, errcode,
- "pthread_key_create failed for xbt_self_thread_key");
+ int errcode = pthread_key_create(&xbt_self_thread_key, NULL);
+ xbt_assert(errcode == 0, "pthread_key_create failed for xbt_self_thread_key");
main_thread = xbt_new(s_xbt_os_thread_t, 1);
main_thread->name = NULL;
#ifndef HAVE_SEM_INIT
next_sem_ID_lock = xbt_os_mutex_init();
#endif
-
}
void xbt_os_thread_mod_postexit(void)
}
/* 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))
+int xbt_os_thread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
{
-#ifdef WIN32
- THROW_UNIMPLEMENTED; //pthread_atfork is not implemented in pthread.h on windows
-#else
return pthread_atfork(prepare, parent, child);
-#endif
}
static void *wrapper_start_routine(void *s)
{
xbt_os_thread_t t = s;
- int errcode;
- if ((errcode = pthread_setspecific(xbt_self_thread_key, t)))
- THROWF(system_error, errcode,
- "pthread_setspecific failed for xbt_self_thread_key");
+ int errcode = pthread_setspecific(xbt_self_thread_key, t);
+ xbt_assert(errcode == 0, "pthread_setspecific failed for xbt_self_thread_key");
void *res = t->start_routine(t->param);
if (t->detached)
}
-xbt_os_thread_t xbt_os_thread_create(const char *name,
- pvoid_f_pvoid_t start_routine,
- void *param,
- void *extra_data)
+xbt_os_thread_t xbt_os_thread_create(const char *name, pvoid_f_pvoid_t start_routine, void *param, void *extra_data)
{
- int errcode;
-
xbt_os_thread_t res_thread = xbt_new(s_xbt_os_thread_t, 1);
res_thread->detached = 0;
res_thread->name = xbt_strdup(name);
XBT_RUNNING_CTX_INITIALIZE(res_thread->running_ctx);
res_thread->extra_data = extra_data;
- if ((errcode = pthread_create(&(res_thread->t), &thread_attr,
- wrapper_start_routine, res_thread)))
- THROWF(system_error, errcode,
- "pthread_create failed: %s", strerror(errcode));
-
-
+ int errcode = pthread_create(&(res_thread->t), &thread_attr, wrapper_start_routine, res_thread);
+ xbt_assert(errcode == 0, "pthread_create failed: %s", strerror(errcode));
return res_thread;
}
-
-#ifdef CORE_BINDING
int xbt_os_thread_bind(xbt_os_thread_t thread, int cpu){
- pthread_t pthread = thread->t;
int errcode = 0;
+#ifdef 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;
}
-#endif
void xbt_os_thread_setstacksize(int stack_size)
{
#endif
0
};
- size_t sz;
- int res;
- int i;
- if (stack_size < 0)
- xbt_die("stack size %d is negative, maybe it exceeds MAX_INT?", stack_size);
+ xbt_assert(stack_size >= 0, "stack size %d is negative, maybe it exceeds MAX_INT?", stack_size);
- sz = stack_size;
- res = pthread_attr_setstacksize(&thread_attr, sz);
+ size_t sz = stack_size;
+ int res = pthread_attr_setstacksize(&thread_attr, sz);
- for (i = 0; res == EINVAL && alignment[i] > 0; i++) {
+ for (int i = 0; res == EINVAL && alignment[i] > 0; i++) {
/* Invalid size, try again with next multiple of alignment[i]. */
size_t rem = sz % alignment[i];
if (rem != 0 || sz == 0) {
size_t sz2 = sz - rem + alignment[i];
- XBT_DEBUG("pthread_attr_setstacksize failed for %zd, try again with %zd",
- sz, sz2);
+ XBT_DEBUG("pthread_attr_setstacksize failed for %zd, try again with %zd", sz, sz2);
sz = sz2;
res = pthread_attr_setstacksize(&thread_attr, sz);
}
void xbt_os_thread_join(xbt_os_thread_t thread, void **thread_return)
{
+ int errcode = pthread_join(thread->t, thread_return);
- int errcode;
-
- if ((errcode = pthread_join(thread->t, thread_return)))
- THROWF(system_error, errcode, "pthread_join failed: %s",
- strerror(errcode));
+ xbt_assert(errcode==0, "pthread_join failed: %s", strerror(errcode));
xbt_os_thread_free_thread_data(thread);
}
return pthread_getspecific(xbt_self_thread_key);
}
-void xbt_os_thread_key_create(xbt_os_thread_key_t* key) {
-
- int errcode;
- if ((errcode = pthread_key_create(key, NULL)))
- THROWF(system_error, errcode, "pthread_key_create failed");
+void xbt_os_thread_key_create(xbt_os_thread_key_t* key)
+{
+ int errcode = pthread_key_create(key, NULL);
+ xbt_assert(errcode==0 , "pthread_key_create failed");
}
void xbt_os_thread_set_specific(xbt_os_thread_key_t key, void* value) {
- int errcode;
- if ((errcode = pthread_setspecific(key, value)))
- THROWF(system_error, errcode, "pthread_setspecific failed");
+ int errcode = pthread_setspecific(key, value);
+ xbt_assert(errcode==0, "pthread_setspecific failed");
}
void* xbt_os_thread_get_specific(xbt_os_thread_key_t key) {
xbt_os_mutex_t xbt_os_mutex_init(void)
{
xbt_os_mutex_t res = xbt_new(s_xbt_os_mutex_t, 1);
- int errcode;
-
- if ((errcode = pthread_mutex_init(&(res->m), NULL)))
- THROWF(system_error, errcode, "pthread_mutex_init() failed: %s",
- strerror(errcode));
+ int errcode = pthread_mutex_init(&(res->m), NULL);
+ xbt_assert(errcode==0, "pthread_mutex_init() failed: %s", strerror(errcode));
return res;
}
void xbt_os_mutex_acquire(xbt_os_mutex_t mutex)
{
- int errcode;
-
- if ((errcode = pthread_mutex_lock(&(mutex->m))))
- THROWF(system_error, errcode, "pthread_mutex_lock(%p) failed: %s",
- mutex, strerror(errcode));
+ int errcode = pthread_mutex_lock(&(mutex->m));
+ xbt_assert(errcode==0, "pthread_mutex_lock(%p) failed: %s", mutex, strerror(errcode));
}
ts_end.tv_nsec = (long) ((end - ts_end.tv_sec) * 1000000000);
XBT_DEBUG("pthread_mutex_timedlock(%p,%p)", &(mutex->m), &ts_end);
- errcode = pthread_mutex_timedlock(&(mutex->m), &ts_end);
+ int errcode = pthread_mutex_timedlock(&(mutex->m), &ts_end);
-#else /* Well, let's reimplement it since those lazy libc dudes didn't */
+#else /* reimplement it since those lazy libc dudes didn't (Mac OSX, hu?) */
double start = xbt_os_time();
do {
errcode = pthread_mutex_trylock(&(mutex->m));
void xbt_os_mutex_release(xbt_os_mutex_t mutex)
{
- int errcode;
-
- if ((errcode = pthread_mutex_unlock(&(mutex->m))))
- THROWF(system_error, errcode, "pthread_mutex_unlock(%p) failed: %s",
- mutex, strerror(errcode));
+ int errcode = pthread_mutex_unlock(&(mutex->m));
+ xbt_assert(errcode==0, "pthread_mutex_unlock(%p) failed: %s", mutex, strerror(errcode));
}
void xbt_os_mutex_destroy(xbt_os_mutex_t mutex)
{
- int errcode;
-
if (!mutex)
return;
- if ((errcode = pthread_mutex_destroy(&(mutex->m))))
- THROWF(system_error, errcode, "pthread_mutex_destroy(%p) failed: %s",
- mutex, strerror(errcode));
+ int errcode = pthread_mutex_destroy(&(mutex->m));
+ xbt_assert(errcode == 0, "pthread_mutex_destroy(%p) failed: %s", mutex, strerror(errcode));
free(mutex);
}
xbt_os_cond_t xbt_os_cond_init(void)
{
xbt_os_cond_t res = xbt_new(s_xbt_os_cond_t, 1);
- int errcode;
- if ((errcode = pthread_cond_init(&(res->c), NULL)))
- THROWF(system_error, errcode, "pthread_cond_init() failed: %s",
- strerror(errcode));
-
+ int errcode = pthread_cond_init(&(res->c), NULL);
+ xbt_assert(errcode==0, "pthread_cond_init() failed: %s", strerror(errcode));
return res;
}
void xbt_os_cond_wait(xbt_os_cond_t cond, xbt_os_mutex_t mutex)
{
- int errcode;
- if ((errcode = pthread_cond_wait(&(cond->c), &(mutex->m))))
- THROWF(system_error, errcode, "pthread_cond_wait(%p,%p) failed: %s",
- cond, mutex, strerror(errcode));
+ int errcode = pthread_cond_wait(&(cond->c), &(mutex->m));
+ xbt_assert(errcode==0, "pthread_cond_wait(%p,%p) failed: %s", cond, mutex, strerror(errcode));
}
-void xbt_os_cond_timedwait(xbt_os_cond_t cond, xbt_os_mutex_t mutex,
- double delay)
+void xbt_os_cond_timedwait(xbt_os_cond_t cond, xbt_os_mutex_t mutex, double delay)
{
int errcode;
struct timespec ts_end;
} else {
ts_end.tv_sec = (time_t) floor(end);
ts_end.tv_nsec = (long) ((end - ts_end.tv_sec) * 1000000000);
- XBT_DEBUG("pthread_cond_timedwait(%p,%p,%p)", &(cond->c), &(mutex->m),
- &ts_end);
- switch ((errcode =
- pthread_cond_timedwait(&(cond->c), &(mutex->m), &ts_end))) {
+ XBT_DEBUG("pthread_cond_timedwait(%p,%p,%p)", &(cond->c), &(mutex->m), &ts_end);
+ switch ((errcode = pthread_cond_timedwait(&(cond->c), &(mutex->m), &ts_end))) {
case 0:
return;
case ETIMEDOUT:
"condition %p (mutex %p) wasn't signaled before timeout (%f)",
cond, mutex, delay);
default:
- THROWF(system_error, errcode,
- "pthread_cond_timedwait(%p,%p,%f) failed: %s", cond, mutex,
- delay, strerror(errcode));
+ THROWF(system_error, errcode, "pthread_cond_timedwait(%p,%p,%f) failed: %s", cond, mutex, delay, strerror(errcode));
}
}
}
void xbt_os_cond_signal(xbt_os_cond_t cond)
{
- int errcode;
- if ((errcode = pthread_cond_signal(&(cond->c))))
- THROWF(system_error, errcode, "pthread_cond_signal(%p) failed: %s",
- cond, strerror(errcode));
+ int errcode = pthread_cond_signal(&(cond->c));
+ xbt_assert(errcode==0, "pthread_cond_signal(%p) failed: %s", cond, strerror(errcode));
}
void xbt_os_cond_broadcast(xbt_os_cond_t cond)
{
- int errcode;
- if ((errcode = pthread_cond_broadcast(&(cond->c))))
- THROWF(system_error, errcode, "pthread_cond_broadcast(%p) failed: %s",
- cond, strerror(errcode));
+ int errcode = pthread_cond_broadcast(&(cond->c));
+ xbt_assert(errcode==0, "pthread_cond_broadcast(%p) failed: %s", cond, strerror(errcode));
}
void xbt_os_cond_destroy(xbt_os_cond_t cond)
{
- int errcode;
-
if (!cond)
return;
- if ((errcode = pthread_cond_destroy(&(cond->c))))
- THROWF(system_error, errcode, "pthread_cond_destroy(%p) failed: %s",
- cond, strerror(errcode));
+ int errcode = pthread_cond_destroy(&(cond->c));
+ xbt_assert(errcode==0, "pthread_cond_destroy(%p) failed: %s", cond, strerror(errcode));
free(cond);
}
-void *xbt_os_thread_getparam(void)
-{
- xbt_os_thread_t t = xbt_os_thread_self();
- return t ? t->param : NULL;
-}
-
typedef struct xbt_os_sem_ {
#ifndef HAVE_SEM_INIT
char *name;
void xbt_os_sem_acquire(xbt_os_sem_t sem)
{
- if (!sem)
- THROWF(arg_error, EINVAL, "Cannot acquire of the NULL semaphore");
if (sem_wait(sem->ps) < 0)
THROWF(system_error, errno, "sem_wait() failed: %s", strerror(errno));
}
{
int errcode;
- if (!sem)
- THROWF(arg_error, EINVAL, "Cannot acquire of the NULL semaphore");
-
if (delay < 0) {
xbt_os_sem_acquire(sem);
} else if (delay == 0) {
void xbt_os_sem_release(xbt_os_sem_t sem)
{
- if (!sem)
- THROWF(arg_error, EINVAL, "Cannot release of the NULL semaphore");
-
if (sem_post(sem->ps) < 0)
THROWF(system_error, errno, "sem_post() failed: %s", strerror(errno));
}
void xbt_os_sem_destroy(xbt_os_sem_t sem)
{
- if (!sem)
- THROWF(arg_error, EINVAL, "Cannot destroy the NULL sempahore");
-
#ifdef HAVE_SEM_INIT
if (sem_destroy(sem->ps) < 0)
THROWF(system_error, errno, "sem_destroy() failed: %s",
void xbt_os_sem_get_value(xbt_os_sem_t sem, int *svalue)
{
- if (!sem)
- THROWF(arg_error, EINVAL,
- "Cannot get the value of the NULL semaphore");
-
if (sem_getvalue(&(sem->s), svalue) < 0)
THROWF(system_error, errno, "sem_getvalue() failed: %s",
strerror(errno));
