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posix-threads.cc (_Jv_CondWait): Check to see if we are interrupted before modifying the cv's wait set.

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2000-09-30  Tom Tromey  <tromey@cygnus.com>

        * posix-threads.cc (_Jv_CondWait): Check to see if we are
        interrupted before modifying the cv's wait set.

From-SVN: r36680
This commit is contained in:
Tom Tromey 2000-09-30 10:01:04 +00:00 committed by Bryce McKinlay
parent bf3b8e42e2
commit 304daac5d9
2 changed files with 17 additions and 12 deletions
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5
libjava/ChangeLog
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@ -1,3 +1,8 @@
2000-09-30 Tom Tromey <tromey@cygnus.com>
* posix-threads.cc (_Jv_CondWait): Check to see if we are
interrupted before modifying the cv's wait set.
2000-09-30 Hans Boehm <boehm@acm.org>
Bryce McKinlay <bryce@albatross.co.nz>

24
libjava/posix-threads.cc
View File

@ -1,6 +1,6 @@
// posix-threads.cc - interface between libjava and POSIX threads.
/* Copyright (C) 1998, 1999 Free Software Foundation
/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
This file is part of libgcj.
@ -104,6 +104,16 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
_Jv_Thread_t *current = _Jv_ThreadCurrentData ();
java::lang::Thread *current_obj = _Jv_ThreadCurrent ();
pthread_mutex_lock (&current->wait_mutex);
// Now that we hold the wait mutex, check if this thread has been
// interrupted already.
if (current_obj->interrupt_flag)
{
pthread_mutex_unlock (&current->wait_mutex);
return _JV_INTERRUPTED;
}
// Add this thread to the cv's wait set.
current->next = NULL;
@ -119,16 +129,6 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
}
}
pthread_mutex_lock (&current->wait_mutex);
// Now that we hold the wait mutex, check if this thread has been
// interrupted already.
if (current_obj->interrupt_flag)
{
pthread_mutex_unlock (&current->wait_mutex);
return _JV_INTERRUPTED;
}
// Record the current lock depth, so it can be restored when we re-aquire it.
int count = mu->count;
@ -154,7 +154,7 @@ _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
done_sleeping = true;
}
// Check for an interrupt *before* unlocking the wait mutex.
// Check for an interrupt *before* releasing the wait mutex.
jboolean interrupted = current_obj->interrupt_flag;
pthread_mutex_unlock (&current->wait_mutex);