43 lines
933 B
C
43 lines
933 B
C
#define JEMALLOC_EXTENT_MMAP_C_
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#include "jemalloc/internal/jemalloc_preamble.h"
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#include "jemalloc/internal/jemalloc_internal_includes.h"
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#include "jemalloc/internal/assert.h"
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#include "jemalloc/internal/extent_mmap.h"
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/******************************************************************************/
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/* Data. */
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bool opt_retain =
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#ifdef JEMALLOC_RETAIN
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true
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#else
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false
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#endif
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;
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/******************************************************************************/
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void *
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extent_alloc_mmap(void *new_addr, size_t size, size_t alignment, bool *zero,
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bool *commit) {
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assert(alignment == ALIGNMENT_CEILING(alignment, PAGE));
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void *ret = pages_map(new_addr, size, alignment, commit);
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if (ret == NULL) {
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return NULL;
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}
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assert(ret != NULL);
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if (*commit) {
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*zero = true;
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}
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return ret;
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}
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bool
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extent_dalloc_mmap(void *addr, size_t size) {
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if (!opt_retain) {
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pages_unmap(addr, size);
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}
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return opt_retain;
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}
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