add libbthread to main directory for Android from Andrew

[goodguy/cinelerra.git] / cinelerra-5.1 / libbthread-master / pt-setcancelstate.c

diff --git a/cinelerra-5.1/libbthread-master/pt-setcancelstate.c b/cinelerra-5.1/libbthread-master/pt-setcancelstate.c
new file mode 100644 (file)
index 0000000..ecc0d65
--- /dev/null
+++ b/cinelerra-5.1/libbthread-master/pt-setcancelstate.c
@@ -0,0 +1,57 @@
+/* Set the cancel state for the calling thread.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see 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 <bthread.h>
+#include <pt-internal.h>
+#include <errno.h>
+
+int
+pthread_setcancelstate (int state, int *oldstate)
+{
+  struct pthread_internal_t *p = (struct pthread_internal_t*)pthread_self();
+       int newflags;
+
+       pthread_init();
+       
+  switch (state)
+    {
+    default:
+      return EINVAL;
+    case PTHREAD_CANCEL_ENABLE:
+    case PTHREAD_CANCEL_DISABLE:
+      break;
+    }
+
+  pthread_mutex_lock (&p->cancel_lock);
+  if (oldstate)
+    *oldstate = p->attr.flags & PTHREAD_ATTR_FLAG_CANCEL_ENABLE;
+  
+       if(state == PTHREAD_ATTR_FLAG_CANCEL_ENABLE)
+               p->attr.flags |= PTHREAD_ATTR_FLAG_CANCEL_ENABLE;
+       else
+               p->attr.flags &= ~PTHREAD_ATTR_FLAG_CANCEL_ENABLE;
+       newflags=p->attr.flags;
+  pthread_mutex_unlock (&p->cancel_lock);
+
+       if((newflags & PTHREAD_ATTR_FLAG_CANCEL_PENDING) && (newflags & PTHREAD_ATTR_FLAG_CANCEL_ENABLE) && (newflags & PTHREAD_ATTR_FLAG_CANCEL_ASYNCRONOUS))
+               __pthread_do_cancel(p);
+       
+  return 0;
+}