Cosmetics: fix comment.

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

diff --git a/src/xbt/parmap.c b/src/xbt/parmap.c
index a472c2f..19dcb58 100644 (file)
--- a/src/xbt/parmap.c
+++ b/src/xbt/parmap.c
@@ -55,7 +55,6 @@ xbt_parmap_t xbt_parmap_new(unsigned int num_workers)
 
 void xbt_parmap_destroy(xbt_parmap_t parmap)
 { 
-  XBT_DEBUG("Destroy parmap %p", parmap);
   parmap->status = PARMAP_DESTROY;
 #ifdef HAVE_FUTEX_H
   xbt_event_signal(parmap->sync_event);
@@ -76,38 +75,48 @@ void xbt_parmap_destroy(xbt_parmap_t parmap)
   XBT_DEBUG("Job done");
 }
 
+void* xbt_parmap_next(xbt_parmap_t parmap) {
+
+  unsigned int index = __sync_fetch_and_add(&parmap->index, 1);
+  if (index < xbt_dynar_length(parmap->data)) {
+    return xbt_dynar_get_as(parmap->data, index, void*);
+  }
+  return NULL;
+}
+
+unsigned long xbt_parmap_get_worker_id(xbt_parmap_t parmap) {
+  return (unsigned long) xbt_os_thread_get_extra_data();
+}
+
 static void *_xbt_parmap_worker_main(void *arg)
 {
   unsigned int worker_id;
-  xbt_parmap_t parmap = (xbt_parmap_t)arg;
+  xbt_parmap_t parmap = (xbt_parmap_t) arg;
 
   /* Fetch a worker id */
   worker_id = __sync_fetch_and_add(&parmap->workers_max_id, 1);
-  xbt_os_thread_set_extra_data((void *)(unsigned long)worker_id);
+  xbt_os_thread_set_extra_data((void*) (unsigned long) worker_id);
 
   XBT_DEBUG("New worker thread created (%u)", worker_id);
   
   /* Worker's main loop */
-  while(1){
+  while (1) {
 #ifdef HAVE_FUTEX_H
     xbt_event_wait(parmap->sync_event);
 #endif
-    if(parmap->status == PARMAP_WORK){
-      unsigned int i;
-      unsigned int n = 0;
+    if (parmap->status == PARMAP_WORK) {
 
       XBT_DEBUG("Worker %u got a job", worker_id);
 
-      while ((i = __sync_fetch_and_add(&parmap->index, 1))
-             < xbt_dynar_length(parmap->data)) {
-        parmap->fun(xbt_dynar_get_as(parmap->data, i, void*));
-        n++;
+      void* work = xbt_parmap_next(parmap);
+      if (work != NULL) {
+        parmap->fun(work);
       }
 
-      XBT_DEBUG("Worker %u processed %u tasks", worker_id, n);
+      XBT_DEBUG("Worker %u has finished", worker_id);
 
     /* We are destroying the parmap */
-    }else{
+    } else {
 #ifdef HAVE_FUTEX_H
       xbt_event_end(parmap->sync_event);
 #endif
@@ -163,10 +172,8 @@ void xbt_event_wait(xbt_event_t event)
 
 void xbt_event_end(xbt_event_t event)
 {
-  int myflag;
   unsigned int mycount;
 
-  myflag = event->work;
   mycount = __sync_add_and_fetch(&event->thread_counter, 1);
   if(mycount == event->threads_to_wait){
     event->done++;