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roots.c
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roots.c
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/*
* Functions related to global roots
*
* Copyright (c) 2014, 2015 Gregor Richards
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "ggggc/gc.h"
#ifdef __cplusplus
extern "C" {
#endif
/* globalize some local elements in the pointer stack */
void ggggc_globalize()
{
struct GGGGC_PointerStack *gPointerStack;
/* make a global copy */
gPointerStack = (struct GGGGC_PointerStack *)
malloc(sizeof(struct GGGGC_PointerStack) + ggggc_pointerStack->size * sizeof(void *));
gPointerStack->next = NULL;
gPointerStack->size = ggggc_pointerStack->size;
memcpy(gPointerStack->pointers, ggggc_pointerStack->pointers, ggggc_pointerStack->size * sizeof(void *));
/* then add it to the stack */
if (!ggggc_pointerStackGlobals) {
/* need to find the globals first! */
struct GGGGC_PointerStack *cur = ggggc_pointerStack;
while (cur->next) cur = cur->next;
ggggc_pointerStackGlobals = cur;
}
ggggc_pointerStackGlobals->next = gPointerStack;
ggggc_pointerStackGlobals = gPointerStack;
}
#ifdef __cplusplus
}
#endif