I think I just killed a simcall

[simgrid.git] / src / xbt / xbt_os_thread.c

diff --git a/src/xbt/xbt_os_thread.c b/src/xbt/xbt_os_thread.c
index 0c1ae33..7bd87a6 100644 (file)
--- a/src/xbt/xbt_os_thread.c
+++ b/src/xbt/xbt_os_thread.c
@@ -37,7 +37,6 @@
 
 #include "xbt/sysdep.h"
 #include "xbt/ex.h"
-#include "src/xbt/ex_interface.h"  /* We play crude games with exceptions */
 #include "src/internal_config.h"
 #include "xbt/xbt_os_time.h"       /* Portable time facilities */
 #include "xbt/xbt_os_thread.h"     /* This module */
@@ -45,7 +44,7 @@
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync_os, xbt, "Synchronization mechanism (OS-level)");
 
-/* use named sempahore when sem_init() does not work */
+/* use named semaphore when sem_init() does not work */
 #if !HAVE_SEM_INIT
 static int next_sem_ID = 0;
 static xbt_os_mutex_t next_sem_ID_lock;
@@ -57,7 +56,6 @@ typedef struct xbt_os_thread_ {
   char *name;
   void *param;
   pvoid_f_pvoid_t start_routine;
-  xbt_running_ctx_t *running_ctx;
   void *extra_data;
 } s_xbt_os_thread_t;
 static xbt_os_thread_t main_thread = NULL;
@@ -75,18 +73,10 @@ 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->running_ctx);
   free(thread->name);
   free(thread);
 }
 
-/* callback: context fetching */
-static xbt_running_ctx_t *_os_thread_get_running_ctx(void)
-{
-  return xbt_os_thread_self()->running_ctx;
-}
-
 /* callback: termination */
 static void _os_thread_ex_terminate(xbt_ex_t * e)
 {
@@ -109,17 +99,12 @@ void xbt_os_thread_mod_preinit(void)
   main_thread->name = (char *) "main";
   main_thread->param = NULL;
   main_thread->start_routine = NULL;
-  main_thread->running_ctx = xbt_new(xbt_running_ctx_t, 1);
   main_thread->extra_data = NULL;
-  XBT_RUNNING_CTX_INITIALIZE(main_thread->running_ctx);
 
   if ((errcode = pthread_setspecific(xbt_self_thread_key, main_thread)))
     THROWF(system_error, errcode,
            "Impossible to set the SimGrid identity descriptor to the main thread (pthread_setspecific failed)");
 
-  __xbt_running_ctx_fetch = _os_thread_get_running_ctx;
-  __xbt_ex_terminate = _os_thread_ex_terminate;
-
   pthread_attr_init(&thread_attr);
 
   thread_mod_inited = 1;
@@ -137,17 +122,12 @@ void xbt_os_thread_mod_postexit(void)
 
   //   if ((errcode=pthread_key_delete(xbt_self_thread_key)))
   //     THROWF(system_error,errcode,"pthread_key_delete failed for xbt_self_thread_key");
-  free(main_thread->running_ctx);
   free(main_thread);
   main_thread = NULL;
   thread_mod_inited = 0;
 #if !HAVE_SEM_INIT
   xbt_os_mutex_destroy(next_sem_ID_lock);
 #endif
-
-  /* Restore the default exception setup */
-  __xbt_running_ctx_fetch = &__xbt_ex_ctx_default;
-  __xbt_ex_terminate = &__xbt_ex_terminate_default;
 }
 
 /** Calls pthread_atfork() if present, and raise an exception otherwise.
@@ -183,8 +163,6 @@ xbt_os_thread_t xbt_os_thread_create(const char *name,  pvoid_f_pvoid_t start_ro
   res_thread->name = xbt_strdup(name);
   res_thread->start_routine = start_routine;
   res_thread->param = param;
-  res_thread->running_ctx = xbt_new(xbt_running_ctx_t, 1);
-  XBT_RUNNING_CTX_INITIALIZE(res_thread->running_ctx);
   res_thread->extra_data = extra_data;
   
   int errcode = pthread_create(&(res_thread->t), &thread_attr, wrapper_start_routine, res_thread);
@@ -272,7 +250,7 @@ void xbt_os_thread_exit(int *retval)
   pthread_exit(retval);
 }
 
-xbt_os_thread_t xbt_os_thread_self(void)
+xbt_os_thread_t xbt_os_thread_self(void )
 {
   if (!thread_mod_inited)
     return NULL;
@@ -426,13 +404,15 @@ xbt_os_sem_t xbt_os_sem_init(unsigned int value)
 #else                           /* damn, no sem_init(). Reimplement it */
 
   xbt_os_mutex_acquire(next_sem_ID_lock);
-  res->name = bprintf("/%d", ++next_sem_ID);
+  res->name = bprintf("/sg-%d", ++next_sem_ID);
   xbt_os_mutex_release(next_sem_ID_lock);
 
+  sem_unlink(res->name);
   res->ps = sem_open(res->name, O_CREAT, 0644, 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';
+    sem_unlink(res->name);
     res->ps = sem_open(res->name, O_CREAT, 0644, value);
   }
   if (res->ps == (sem_t *) SEM_FAILED)
@@ -473,13 +453,6 @@ void xbt_os_sem_destroy(xbt_os_sem_t sem)
   xbt_free(sem);
 }
 
-void xbt_os_sem_get_value(xbt_os_sem_t sem, int *svalue)
-{
-  if (sem_getvalue(&(sem->s), svalue) < 0)
-    THROWF(system_error, errno, "sem_getvalue() failed: %s",
-           strerror(errno));
-}
-
 /** @brief Returns the amount of cores on the current host */
 int xbt_os_get_numcores(void) {
 #ifdef WIN32