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-rw-r--r--pthreads/pthread_testcancel.c205
1 files changed, 103 insertions, 102 deletions
diff --git a/pthreads/pthread_testcancel.c b/pthreads/pthread_testcancel.c
index 7a9980bcd..665865000 100644
--- a/pthreads/pthread_testcancel.c
+++ b/pthreads/pthread_testcancel.c
@@ -1,102 +1,103 @@
-/*
- * pthread_testcancel.c
- *
- * Description:
- * POSIX thread functions related to thread cancellation.
- *
- * --------------------------------------------------------------------------
- *
- * Pthreads-win32 - POSIX Threads Library for Win32
- * Copyright(C) 1998 John E. Bossom
- * Copyright(C) 1999,2005 Pthreads-win32 contributors
- *
- * Contact Email: rpj@callisto.canberra.edu.au
- *
- * The current list of contributors is contained
- * in the file CONTRIBUTORS included with the source
- * code distribution. The list can also be seen at the
- * following World Wide Web location:
- * http://sources.redhat.com/pthreads-win32/contributors.html
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library in the file COPYING.LIB;
- * if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "pthread.h"
-#include "implement.h"
-
-
-void
-pthread_testcancel (void)
- /*
- * ------------------------------------------------------
- * DOCPUBLIC
- * This function creates a deferred cancellation point
- * in the calling thread. The call has no effect if the
- * current cancelability state is
- * PTHREAD_CANCEL_DISABLE
- *
- * PARAMETERS
- * N/A
- *
- *
- * DESCRIPTION
- * This function creates a deferred cancellation point
- * in the calling thread. The call has no effect if the
- * current cancelability state is
- * PTHREAD_CANCEL_DISABLE
- *
- * NOTES:
- * 1) Cancellation is asynchronous. Use pthread_join
- * to wait for termination of thread if necessary
- *
- * RESULTS
- * N/A
- *
- * ------------------------------------------------------
- */
-{
- pthread_t self = pthread_self ();
- ptw32_thread_t * sp = (ptw32_thread_t *) self.p;
-
- if (sp == NULL)
- {
- return;
- }
-
- /*
- * Pthread_cancel() will have set sp->state to PThreadStateCancelPending
- * and set an event, so no need to enter kernel space if
- * sp->state != PThreadStateCancelPending - that only slows us down.
- */
- if (sp->state != PThreadStateCancelPending)
- {
- return;
- }
-
- (void) pthread_mutex_lock (&sp->cancelLock);
-
- if (sp->cancelState != PTHREAD_CANCEL_DISABLE)
- {
- ResetEvent(sp->cancelEvent);
- sp->state = PThreadStateCanceling;
- sp->cancelState = PTHREAD_CANCEL_DISABLE;
- (void) pthread_mutex_unlock (&sp->cancelLock);
- ptw32_throw (PTW32_EPS_CANCEL);
- /* Never returns here */
- }
-
- (void) pthread_mutex_unlock (&sp->cancelLock);
-} /* pthread_testcancel */
+/*
+ * pthread_testcancel.c
+ *
+ * Description:
+ * POSIX thread functions related to thread cancellation.
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2005 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@callisto.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+
+void
+pthread_testcancel (void)
+ /*
+ * ------------------------------------------------------
+ * DOCPUBLIC
+ * This function creates a deferred cancellation point
+ * in the calling thread. The call has no effect if the
+ * current cancelability state is
+ * PTHREAD_CANCEL_DISABLE
+ *
+ * PARAMETERS
+ * N/A
+ *
+ *
+ * DESCRIPTION
+ * This function creates a deferred cancellation point
+ * in the calling thread. The call has no effect if the
+ * current cancelability state is
+ * PTHREAD_CANCEL_DISABLE
+ *
+ * NOTES:
+ * 1) Cancellation is asynchronous. Use pthread_join
+ * to wait for termination of thread if necessary
+ *
+ * RESULTS
+ * N/A
+ *
+ * ------------------------------------------------------
+ */
+{
+ ptw32_mcs_local_node_t stateLock;
+ pthread_t self = pthread_self ();
+ ptw32_thread_t * sp = (ptw32_thread_t *) self.p;
+
+ if (sp == NULL)
+ {
+ return;
+ }
+
+ /*
+ * Pthread_cancel() will have set sp->state to PThreadStateCancelPending
+ * and set an event, so no need to enter kernel space if
+ * sp->state != PThreadStateCancelPending - that only slows us down.
+ */
+ if (sp->state != PThreadStateCancelPending)
+ {
+ return;
+ }
+
+ ptw32_mcs_lock_acquire (&sp->stateLock, &stateLock);
+
+ if (sp->cancelState != PTHREAD_CANCEL_DISABLE)
+ {
+ ResetEvent(sp->cancelEvent);
+ sp->state = PThreadStateCanceling;
+ sp->cancelState = PTHREAD_CANCEL_DISABLE;
+ ptw32_mcs_lock_release (&stateLock);
+ ptw32_throw (PTW32_EPS_CANCEL);
+ /* Never returns here */
+ }
+
+ ptw32_mcs_lock_release (&stateLock);
+} /* pthread_testcancel */