(pthread_cond_timedwait_relative_old): Undo last patch but keep the code
authordrepper <drepper>
Sun, 13 Feb 2000 08:16:41 +0000 (08:16 +0000)
committerdrepper <drepper>
Sun, 13 Feb 2000 08:16:41 +0000 (08:16 +0000)
around.  A bug in the kernel prevent us from using the code.
(pthread_cond_timedwait_relative_new): Likewise.

linuxthreads/condvar.c

index c0c6199..b1cde4d 100644 (file)
@@ -134,11 +134,25 @@ pthread_cond_timedwait_relative_old(pthread_cond_t *cond,
 {
   volatile pthread_descr self = thread_self();
   sigset_t unblock, initial_mask;
+#ifdef NANOSLEEP_WORKS
   int already_canceled = 0;
   int was_signalled = 0;
+#else
+  int retsleep;
+  int already_canceled;
+  int was_signalled;
+#endif
   sigjmp_buf jmpbuf;
   pthread_extricate_if extr;
 
+#ifndef NANOSLEEP_WORKS
+ requeue_and_wait_again:
+
+  retsleep = 0;
+  already_canceled = 0;
+  was_signalled = 0;
+#endif
+
   /* Set up extrication interface */
   extr.pu_object = cond;
   extr.pu_extricate_func = cond_extricate_func;
@@ -173,14 +187,22 @@ pthread_cond_timedwait_relative_old(pthread_cond_t *cond,
       sigemptyset(&unblock);
       sigaddset(&unblock, __pthread_sig_restart);
       sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask);
+#ifdef NANOSLEEP_WORKS
       /* Sleep for the required duration. If woken by a signal, resume waiting
         as required by Single Unix Specification.  */
       while (__libc_nanosleep(reltime, reltime) != 0)
        ;
+#else
+      /* Sleep for the required duration */
+      retsleep = __libc_nanosleep(&reltime, NULL);
+#endif
       /* Block the restart signal again */
       sigprocmask(SIG_SETMASK, &initial_mask, NULL);
       was_signalled = 0;
     } else {
+#ifndef NANOSLEEP_WORKS
+      retsleep = -1;
+#endif
       was_signalled = 1;
     }
     THREAD_SETMEM(self, p_signal_jmp, NULL);
@@ -212,7 +234,15 @@ pthread_cond_timedwait_relative_old(pthread_cond_t *cond,
       if (was_on_queue) {
        __pthread_set_own_extricate_if(self, 0);
        pthread_mutex_lock(mutex);
+#ifdef NANOSLEEP_WORKS
        return ETIMEDOUT;
+#else
+       if (retsleep == 0)
+         return ETIMEDOUT;
+       /* Woken by a signal: resume waiting as required by Single Unix
+          Specification.  */
+       goto requeue_and_wait_again;
+#endif
       }
 
       suspend(self);
@@ -245,14 +275,28 @@ pthread_cond_timedwait_relative_new(pthread_cond_t *cond,
 {
   volatile pthread_descr self = thread_self();
   sigset_t unblock, initial_mask;
+#ifdef NANOSLEEP_WORKS
   int already_canceled = 0;
   int was_signalled = 0;
+#else
+  int retsleep;
+  int already_canceled;
+  int was_signalled;
+#endif
   sigjmp_buf jmpbuf;
   pthread_extricate_if extr;
 
   already_canceled = 0;
   was_signalled = 0;
 
+#ifndef NANOSLEEP_WORKS
+ requeue_and_wait_again:
+
+  retsleep = 0;
+  already_canceled = 0;
+  was_signalled = 0;
+#endif
+
   /* Set up extrication interface */
   extr.pu_object = cond;
   extr.pu_extricate_func = cond_extricate_func;
@@ -286,14 +330,22 @@ pthread_cond_timedwait_relative_new(pthread_cond_t *cond,
     sigemptyset(&unblock);
     sigaddset(&unblock, __pthread_sig_restart);
     sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask);
+#ifdef NANOSLEEP_WORKS
     /* Sleep for the required duration. If woken by a signal, resume waiting
        as required by Single Unix Specification.  */
     while (__libc_nanosleep(reltime, reltime) != 0)
       ;
+#else
+    /* Sleep for the required duration */
+    retsleep = __libc_nanosleep(&reltime, NULL);
+#endif
     /* Block the restart signal again */
     sigprocmask(SIG_SETMASK, &initial_mask, NULL);
     was_signalled = 0;
   } else {
+#ifndef NANOSLEEP_WORKS
+    retsleep = -1;
+#endif
     was_signalled = 1;
   }
   THREAD_SETMEM(self, p_signal_jmp, NULL);
@@ -322,7 +374,15 @@ pthread_cond_timedwait_relative_new(pthread_cond_t *cond,
     if (was_on_queue) {
       __pthread_set_own_extricate_if(self, 0);
       pthread_mutex_lock(mutex);
+#ifdef NANOSLEEP_WORKS
       return ETIMEDOUT;
+#else
+      if (retsleep == 0)
+       return ETIMEDOUT;
+      /* Woken by a signal: resume waiting as required by Single Unix
+        Specification.  */
+      goto requeue_and_wait_again;
+#endif
     }
 
     /* Eat the outstanding restart() from the signaller */