X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fquick_exit.c;fp=functions%2Fstdlib%2Fquick_exit.c;h=d315b0befca7bec6fbed609fe717d6590b0efa49;hb=c510d64eb2b5d70547b4d36f35ebd12809aabd32;hp=0000000000000000000000000000000000000000;hpb=e921387af8d68b18babcd7e098b97479965b7663;p=pdclib

diff --git a/functions/stdlib/quick_exit.c b/functions/stdlib/quick_exit.c
new file mode 100644
index 0000000..d315b0b
--- /dev/null
+++ b/functions/stdlib/quick_exit.c
@@ -0,0 +1,44 @@
+/* quick_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
+#include <_PDCLIB_io.h>
+
+/* TODO - "except that a function is called after any previously registered
+   functions that had already been called at the time it was registered.
+*/
+
+/* TODO: 32 is guaranteed. This should be dynamic but ATM gives problems
+   with my malloc.
+*/
+#define NUMBER_OF_SLOTS 40
+
+void (*_PDCLIB_quickexitstack[ NUMBER_OF_SLOTS ])( void ) = { 0 };
+size_t _PDCLIB_quickexitptr = NUMBER_OF_SLOTS;
+
+void quick_exit( int status )
+{
+    while ( _PDCLIB_quickexitptr < NUMBER_OF_SLOTS )
+    {
+        _PDCLIB_quickexitstack[ _PDCLIB_quickexitptr++ ]();
+    }
+    _Exit( status );
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    /* Unwinding of regstack tested in at_quick_exit(). */
+    return TEST_RESULTS;
+}
+
+#endif