Enable building PDCLib with Watcom. This was surprisingly painless: their C99 mode...

[pdclib] / internals / _PDCLIB_glue.h

diff --git a/internals/_PDCLIB_glue.h b/internals/_PDCLIB_glue.h
index 3c5872bcbeab7744d215b9b765d78e9cc72ab684..d49cc114338273c0c4c9ce6681ea9334660029c6 100644 (file)
--- a/internals/_PDCLIB_glue.h
+++ b/internals/_PDCLIB_glue.h
@@ -1,3 +1,5 @@
+#ifndef _PDCLIB_GLUE_H
+#define _PDCLIB_GLUE_H
 /* $Id$ */
 
 /* OS glue functions declaration <_PDCLIB_glue.h>
@@ -6,10 +8,10 @@
    Permission is granted to use, modify, and / or redistribute at will.
 */
 
-#ifndef _PDCLIB_INT_H
-#define _PDCLIB_INT_H _PDCLIB_INT_H
 #include <_PDCLIB_int.h>
-#endif
+#include <stdbool.h>
+#include <stddef.h>
+_PDCLIB_BEGIN_EXTERN_C
 
 /* -------------------------------------------------------------------------- */
 /* OS "glue", part 2                                                          */
@@ -23,15 +25,27 @@
 /* A system call that terminates the calling process, returning a given status
    to the environment.
 */
-void _PDCLIB_Exit( int status ) _PDCLIB_NORETURN;
+_PDCLIB_noreturn void _PDCLIB_Exit( int status );
 
-/* A system call that adds n pages of memory to the process heap (if n is
-   positive), or releases n pages from the process heap (if n is negative).
-   Return a (void *) pointing to the *former* end-of-heap if successful, NULL
-   otherwise.
+/* A system call which allocates n pages of memory and returns a pointer to 
+   them. On failure, returns NULL
 */
-void * _PDCLIB_allocpages( int n );
+void * _PDCLIB_allocpages( size_t n );
+
+/* A system call which frees the n pages of memory pointed to by p */
+void _PDCLIB_freepages( void * p, size_t n );
+
+#ifdef _PDCLIB_HAVE_REALLOCPAGES
+/* A system call which attempts to reallocate the group of \p on pages starting
+   at \p p, resizing the chunk to be \p nn pages long. If \p mayMove is true, 
+   then then the group of pages may move; otherwise, if the group cannot be 
+   resized in its current position, failure must be reported.
 
+   On failure, returns NULL; on success, returns the address of the group of 
+   pages (if mayMove == false, then this must be equal to \p p)
+*/
+void * _PDCLIB_reallocpages( void* p, size_t on, size_t nn, bool mayMove);
+#endif
 
 /* stdio.h */
 
@@ -73,5 +87,7 @@ int _PDCLIB_remove( const char * filename );
    must still be accessible by old name. Any handling of open files etc. is
    done by standard rename() already.
 */
-int _PDCLIB_rename( const char * old, const char * new );
+int _PDCLIB_rename( const char * old, const char * newn);
 
+_PDCLIB_END_EXTERN_C
+#endif