API, Unix: call getrusage() from inside boinc_worker_thread_cpu_time() and make worker_thread_ru a local stack variable to avoid potential problems with thread preemption.

svn path=/trunk/boinc/; revision=13880

api/boinc_api.C

@@ -140,7 +140,6 @@ HANDLE worker_thread_handle;
     // used to suspend worker thread, and to measure its CPU time
 #else
 static pthread_t timer_thread_handle;
-static struct rusage worker_thread_ru;
 #endif
 
 static BOINC_OPTIONS options;
@@ -206,6 +205,9 @@ double boinc_worker_thread_cpu_time() {
         cpu = nrunning_ticks * TIMER_PERIOD;   // for Win9x
     }
 #else
+    struct rusage worker_thread_ru;
+    
+    getrusage(RUSAGE_SELF, &worker_thread_ru);
     cpu = (double)worker_thread_ru.ru_utime.tv_sec
       + (((double)worker_thread_ru.ru_utime.tv_usec)/1000000.0);
     cpu += (double)worker_thread_ru.ru_stime.tv_sec
@@ -931,7 +933,6 @@ void* timer_thread(void*) {
     block_sigalrm();
     while(1) {
         boinc_sleep(TIMER_PERIOD);
-        getrusage(RUSAGE_SELF, &worker_thread_ru);
         timer_handler();
     }
     return 0;

checkin_notes

@@ -9607,4 +9607,11 @@ Charlie 16 Oct 2007
         setupForBOINC.sh
         boinc.xcodeproj/
             project.pbxproj
-    
+
+Charlie 16 Oct 2007
+    - API, Unix: call getrusage() from inside boinc_worker_thread_cpu_time() 
+        and make worker_thread_ru a local stack variable to avoid potential 
+        problems with thread preemption.
+
+    api/
+        boinc_api.C