d82a5e6a34
Implement the *allocx() API, which is a successor to the *allocm() API.
The *allocx() functions are slightly simpler to use because they have
fewer parameters, they directly return the results of primary interest,
and mallocx()/rallocx() avoid the strict aliasing pitfall that
allocm()/rallocx() share with posix_memalign(). The following code
violates strict aliasing rules:
foo_t *foo;
allocm((void **)&foo, NULL, 42, 0);
whereas the following is safe:
foo_t *foo;
void *p;
allocm(&p, NULL, 42, 0);
foo = (foo_t *)p;
mallocx() does not have this problem:
foo_t *foo = (foo_t *)mallocx(42, 0);
59 lines
2.6 KiB
C
59 lines
2.6 KiB
C
/*
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* The @je_@ prefix on the following public symbol declarations is an artifact
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* of namespace management, and should be omitted in application code unless
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* JEMALLOC_NO_DEMANGLE is defined (see jemalloc_mangle@install_suffix@.h).
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*/
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extern JEMALLOC_EXPORT const char *@je_@malloc_conf;
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extern JEMALLOC_EXPORT void (*@je_@malloc_message)(void *cbopaque,
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const char *s);
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JEMALLOC_EXPORT void *@je_@malloc(size_t size) JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT void *@je_@calloc(size_t num, size_t size)
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JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT int @je_@posix_memalign(void **memptr, size_t alignment,
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size_t size) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT void *@je_@aligned_alloc(size_t alignment, size_t size)
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JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT void *@je_@realloc(void *ptr, size_t size);
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JEMALLOC_EXPORT void @je_@free(void *ptr);
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JEMALLOC_EXPORT void *@je_@mallocx(size_t size, int flags);
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JEMALLOC_EXPORT void *@je_@rallocx(void *ptr, size_t size, int flags);
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JEMALLOC_EXPORT size_t @je_@xallocx(void *ptr, size_t size, size_t extra,
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int flags);
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JEMALLOC_EXPORT size_t @je_@sallocx(const void *ptr, int flags);
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JEMALLOC_EXPORT void @je_@dallocx(void *ptr, int flags);
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JEMALLOC_EXPORT size_t @je_@nallocx(size_t size, int flags);
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JEMALLOC_EXPORT int @je_@mallctl(const char *name, void *oldp,
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size_t *oldlenp, void *newp, size_t newlen);
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JEMALLOC_EXPORT int @je_@mallctlnametomib(const char *name, size_t *mibp,
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size_t *miblenp);
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JEMALLOC_EXPORT int @je_@mallctlbymib(const size_t *mib, size_t miblen,
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void *oldp, size_t *oldlenp, void *newp, size_t newlen);
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JEMALLOC_EXPORT void @je_@malloc_stats_print(void (*write_cb)(void *,
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const char *), void *@je_@cbopaque, const char *opts);
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JEMALLOC_EXPORT size_t @je_@malloc_usable_size(
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JEMALLOC_USABLE_SIZE_CONST void *ptr);
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#ifdef JEMALLOC_OVERRIDE_MEMALIGN
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JEMALLOC_EXPORT void * @je_@memalign(size_t alignment, size_t size)
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JEMALLOC_ATTR(malloc);
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#endif
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#ifdef JEMALLOC_OVERRIDE_VALLOC
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JEMALLOC_EXPORT void * @je_@valloc(size_t size) JEMALLOC_ATTR(malloc);
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#endif
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#ifdef JEMALLOC_EXPERIMENTAL
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JEMALLOC_EXPORT int @je_@allocm(void **ptr, size_t *rsize, size_t size,
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int flags) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int @je_@rallocm(void **ptr, size_t *rsize, size_t size,
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size_t extra, int flags) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int @je_@sallocm(const void *ptr, size_t *rsize, int flags)
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JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int @je_@dallocm(void *ptr, int flags)
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JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int @je_@nallocm(size_t *rsize, size_t size, int flags);
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#endif
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