Libc-320.tar.gz

[apple/libc.git] / stdlib / FreeBSD / exit.c

diff --git a/stdlib/FreeBSD/exit.c b/stdlib/FreeBSD/exit.c
new file mode 100644 (file)
index 0000000..6fefb36
--- /dev/null
+++ b/stdlib/FreeBSD/exit.c
@@ -0,0 +1,78 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)exit.c     8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/stdlib/exit.c,v 1.6 2002/03/22 21:53:10 obrien Exp $");
+
+#include "namespace.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include "un-namespace.h"
+#include "atexit.h"
+
+void (*__cleanup)();
+
+/*
+ * This variable is zero until a process has created a thread.
+ * It is used to avoid calling locking functions in libc when they
+ * are not required. By default, libc is intended to be(come)
+ * thread-safe, but without a (significant) penalty to non-threaded
+ * processes.
+ */
+int    __isthreaded    = 0;
+
+/*
+ * Exit, flushing stdio buffers if necessary.
+ */
+void
+exit(status)
+       int status;
+{
+       struct atexit *p;
+       int n;
+
+       /* Ensure that the auto-initialization routine is linked in: */
+       extern int _thread_autoinit_dummy_decl;
+
+       _thread_autoinit_dummy_decl = 1;
+
+       for (p = __atexit; p; p = p->next)
+               for (n = p->ind; --n >= 0;)
+                       (*p->fns[n])();
+       if (__cleanup)
+               (*__cleanup)();
+       _exit(status);
+}