X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libjava%2Fposix-threads.cc;h=91da25cf38de9d9fe49557993aa7a30b33b941f5;hb=7bb1225a6a31c86f74dfd7284e10d8bac72e17cb;hp=e92348bcc2cc078bdb768e9ba23c1c6c7ccda1b5;hpb=d30cece008b62a32c342597ac2f1c074c1d510f1;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libjava/posix-threads.cc b/libjava/posix-threads.cc
index e92348bcc2c..91da25cf38d 100644
--- a/libjava/posix-threads.cc
+++ b/libjava/posix-threads.cc
@@ -1,6 +1,6 @@
 // posix-threads.cc - interface between libjava and POSIX threads.
 
-/* Copyright (C) 1998, 1999, 2000, 2001  Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001, 2004  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -24,6 +24,9 @@ details.  */
 #include <signal.h>
 #include <errno.h>
 #include <limits.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>	// To test for _POSIX_THREAD_PRIORITY_SCHEDULING
+#endif
 
 #include <gcj/cni.h>
 #include <jvm.h>
@@ -31,6 +34,7 @@ details.  */
 #include <java/lang/System.h>
 #include <java/lang/Long.h>
 #include <java/lang/OutOfMemoryError.h>
+#include <java/lang/InternalError.h>
 
 // This is used to implement thread startup.
 struct starter
@@ -190,7 +194,7 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
 int
 _Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu)
 {
-  if (_Jv_PthreadCheckMonitor (mu))
+  if (_Jv_MutexCheckMonitor (mu))
     return _JV_NOT_OWNER;
 
   _Jv_Thread_t *target;
@@ -229,7 +233,7 @@ _Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu)
 int
 _Jv_CondNotifyAll (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu)
 {
-  if (_Jv_PthreadCheckMonitor (mu))
+  if (_Jv_MutexCheckMonitor (mu))
     return _JV_NOT_OWNER;
 
   _Jv_Thread_t *target;
@@ -277,6 +281,17 @@ handle_intr (int)
   // Do nothing.
 }
 
+static void
+block_sigchld()
+{
+  sigset_t mask;
+  sigemptyset (&mask);
+  sigaddset (&mask, SIGCHLD);
+  int c = pthread_sigmask (SIG_BLOCK, &mask, NULL);
+  if (c != 0)
+    JvFail (strerror (c));
+}
+
 void
 _Jv_InitThreads (void)
 {
@@ -292,6 +307,10 @@ _Jv_InitThreads (void)
   sigemptyset (&act.sa_mask);
   act.sa_flags = 0;
   sigaction (INTR, &act, NULL);
+
+  // Block SIGCHLD here to ensure that any non-Java threads inherit the new 
+  // signal mask.
+  block_sigchld();
 }
 
 _Jv_Thread_t *
@@ -318,6 +337,7 @@ _Jv_ThreadDestroyData (_Jv_Thread_t *data)
 void
 _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio)
 {
+#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
   if (data->flags & FLAG_START)
     {
       struct sched_param param;
@@ -325,6 +345,7 @@ _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio)
       param.sched_priority = prio;
       pthread_setschedparam (data->thread, SCHED_RR, &param);
     }
+#endif
 }
 
 void
@@ -353,6 +374,8 @@ _Jv_ThreadRegister (_Jv_Thread_t *data)
 	_Jv_self_cache[current_index].high_sp_bits = BAD_HIGH_SP_VALUE;
       }
 # endif
+  // Block SIGCHLD which is used in natPosixProcess.cc.
+  block_sigchld();
 }
 
 void
@@ -398,6 +421,10 @@ _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data,
     return;
   data->flags |= FLAG_START;
 
+  // Block SIGCHLD which is used in natPosixProcess.cc.
+  // The current mask is inherited by the child thread.
+  block_sigchld();
+
   param.sched_priority = thread->getPriority();
 
   pthread_attr_init (&attr);