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88 lines
1.6 KiB
88 lines
1.6 KiB
2 months ago
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/*
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* The UCW Library -- Resources for Memory Blocks
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*
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* (c) 2008 Martin Mares <mj@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#include <ucw/lib.h>
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#include <ucw/resource.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct res_mem {
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struct resource r;
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size_t size; // Just for sake of readable resource dumps
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};
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static void
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mem_res_free(struct resource *r)
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{
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xfree(r->priv);
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}
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static void
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mem_res_dump(struct resource *r, uint indent UNUSED)
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{
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struct res_mem *rm = (struct res_mem *) r;
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printf(" size=%zu, ptr=%p\n", rm->size, r->priv);
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}
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static const struct res_class mem_res_class = {
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.name = "mem",
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.dump = mem_res_dump,
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.free = mem_res_free,
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.res_size = sizeof(struct res_mem),
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};
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void *
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res_malloc(size_t size, struct resource **ptr)
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{
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void *p = xmalloc(size);
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struct resource *r = res_new(&mem_res_class, p);
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((struct res_mem *) r) -> size = size;
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if (ptr)
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*ptr = r;
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return p;
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}
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void *
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res_malloc_zero(size_t size, struct resource **ptr)
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{
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void *p = res_malloc(size, ptr);
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bzero(p, size);
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return p;
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}
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void *
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res_realloc(struct resource *r, size_t size)
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{
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struct res_mem *rm = (struct res_mem *) r;
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r->priv = xrealloc(r->priv, size);
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rm->size = size;
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return r->priv;
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}
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#ifdef TEST
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int main(void)
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{
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struct respool *rp = rp_new("test", NULL);
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rp_switch(rp);
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struct resource *r;
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char *p = res_malloc(3, &r);
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p[0] = p[1] = p[2] = 1;
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rp_dump(rp, 0);
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p = res_realloc(r, 5);
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p[3] = p[4] = 2;
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rp_dump(rp, 0);
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rp_delete(rp);
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return 0;
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}
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#endif
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