X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5bf49e9cedf84ccdf5c6cb604386d2c54f63436e..d224717198062a7db0c69aa4b653df0e80a1c891:/src/xbt/xbt_os_thread.c

diff --git a/src/xbt/xbt_os_thread.c b/src/xbt/xbt_os_thread.c
index c79377a68e..b2be4c7fe6 100644
--- a/src/xbt/xbt_os_thread.c
+++ b/src/xbt/xbt_os_thread.c
@@ -23,7 +23,6 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync_os, xbt,
 /* ********************************* PTHREAD IMPLEMENTATION ************************************ */
 #ifdef HAVE_PTHREAD_H
 
-#include <pthread.h>
 #include <semaphore.h>
 
 #ifdef HAVE_MUTEX_TIMEDLOCK
@@ -219,6 +218,24 @@ xbt_os_thread_t xbt_os_thread_self(void)
   return res;
 }
 
+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_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");
+}
+
+void* xbt_os_thread_get_specific(xbt_os_thread_key_t key) {
+  return pthread_getspecific(key);
+}
+
 void xbt_os_thread_detach(xbt_os_thread_t thread)
 {
   thread->detached = 1;
@@ -242,12 +259,6 @@ typedef struct xbt_os_mutex_ {
   pthread_mutex_t m;
 } s_xbt_os_mutex_t;
 
-typedef struct xbt_os_rmutex_ {
-  xbt_os_mutex_t mutex;
-  xbt_os_thread_t owner;
-  int count;
-} s_xbt_os_rmutex_t;
-
 #include <time.h>
 #include <math.h>
 
@@ -484,7 +495,7 @@ xbt_os_sem_t xbt_os_sem_init(unsigned int value)
   if ((res->ps == (sem_t *) SEM_FAILED) && (errno == ENAMETOOLONG)) {
     /* Old darwins only allow 13 chars. Did you create *that* amount of semaphores? */
     res->name[13] = '\0';
-    res->ps = sem_open(res->name, O_CREAT, 0644, 1);
+    res->ps = sem_open(res->name, O_CREAT, 0644, value);
   }
   if ((res->ps == (sem_t *) SEM_FAILED))
     THROWF(system_error, errno, "sem_open() failed: %s", strerror(errno));
@@ -732,6 +743,21 @@ void xbt_os_thread_exit(int *retval)
     ExitThread(0);
 }
 
+void xbt_os_thread_key_create(xbt_os_thread_key_t* key) {
+
+  *key = TlsAlloc();
+}
+
+void xbt_os_thread_set_specific(xbt_os_thread_key_t key, void* value) {
+
+  if (!TlsSetValue(key, value))
+    THROWF(system_error, (int) GetLastError(), "TlsSetValue() failed");
+}
+
+void* xbt_os_thread_get_specific(xbt_os_thread_key_t key) {
+  return TlsGetValue(key);
+}
+
 void xbt_os_thread_detach(xbt_os_thread_t thread)
 {
   THROW_UNIMPLEMENTED;
@@ -1134,6 +1160,13 @@ void xbt_os_sem_get_value(xbt_os_sem_t sem, int *svalue)
 
 #endif
 
+/***** reentrant mutexes *****/
+typedef struct xbt_os_rmutex_ {
+  xbt_os_mutex_t mutex;
+  xbt_os_thread_t owner;
+  int count;
+} s_xbt_os_rmutex_t;
+
 void xbt_os_thread_set_extra_data(void *data)
 {
   xbt_os_thread_self()->extra_data = data;
@@ -1146,7 +1179,7 @@ void *xbt_os_thread_get_extra_data(void)
 
 xbt_os_rmutex_t xbt_os_rmutex_init(void)
 {
-  xbt_os_rmutex_t rmutex = xbt_new0(struct xbt_os_rmutex_, 0);
+  xbt_os_rmutex_t rmutex = xbt_new0(struct xbt_os_rmutex_, 1);
   rmutex->mutex = xbt_os_mutex_init();
   rmutex->owner = NULL;
   rmutex->count = 0;
@@ -1156,7 +1189,12 @@ xbt_os_rmutex_t xbt_os_rmutex_init(void)
 void xbt_os_rmutex_acquire(xbt_os_rmutex_t rmutex)
 {
   xbt_os_thread_t self = xbt_os_thread_self();
-  xbt_assert(self != NULL, "Cannot get my own thread object (is the thread module initialized?)");
+
+  if (self == NULL) {
+    /* the thread module is not initialized yet */
+    rmutex->owner = NULL;
+    return;
+  }
 
   if (self != rmutex->owner) {
     xbt_os_mutex_acquire(rmutex->mutex);
@@ -1169,6 +1207,11 @@ void xbt_os_rmutex_acquire(xbt_os_rmutex_t rmutex)
 
 void xbt_os_rmutex_release(xbt_os_rmutex_t rmutex)
 {
+  if (rmutex->owner == NULL) {
+    /* the thread module was not initialized */
+    return;
+  }
+
   xbt_assert(rmutex->owner == xbt_os_thread_self());
 
   if (--rmutex->count == 0) {