Added exit, _Exit, atexit.

[pdclib] / functions / stdlib / exit.c

diff --git a/functions/stdlib/exit.c b/functions/stdlib/exit.c
new file mode 100644 (file)
index 0000000..f093fe0
--- /dev/null
+++ b/functions/stdlib/exit.c
@@ -0,0 +1,51 @@
+/* $Id$ */
+
+/* Release $Name$ */
+
+/* exit( int )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdlib.h>
+
+#ifndef REGTEST
+
+/* TODO: Required by both atexit() and exit(). */
+struct _PDCLIB_exitfunc_t
+{
+    struct _PDCLIB_exitfunc_t * next;
+    void (*func)( void );
+};
+
+struct _PDCLIB_exitfunc_t * regstack = NULL;
+
+void exit( int status )
+{
+    struct _PDCLIB_exitfunc_t * next = regstack;
+    while ( next != NULL )
+    {
+        next->func();
+        regstack = next->next;
+        free( next );
+        next = regstack;
+    }
+    /* TODO: Flush and close open streams. Remove tmpfile() files. */
+    _Exit( status );
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    int NO_TESTDRIVER = 0;
+    BEGIN_TESTS;
+    TESTCASE( NO_TESTDRIVER );
+    return TEST_RESULTS;
+}
+
+#endif