mirror of
https://github.com/jemalloc/jemalloc.git
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cd9a1346e9
Implement tsd, which is a TLS/TSD abstraction that uses one or both internally. Modify bootstrapping such that no tsd's are utilized until allocation is safe. Remove malloc_[v]tprintf(), and use malloc_snprintf() instead. Fix %p argument size handling in malloc_vsnprintf(). Fix a long-standing statistics-related bug in the "thread.arena" mallctl that could cause crashes due to linked list corruption.
72 lines
1.2 KiB
C
72 lines
1.2 KiB
C
#define JEMALLOC_TSD_C_
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#include "jemalloc/internal/jemalloc_internal.h"
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/******************************************************************************/
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/* Data. */
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static unsigned ncleanups;
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static malloc_tsd_cleanup_t cleanups[MALLOC_TSD_CLEANUPS_MAX];
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/******************************************************************************/
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void *
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malloc_tsd_malloc(size_t size)
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{
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/* Avoid choose_arena() in order to dodge bootstrapping issues. */
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return arena_malloc_prechosen(arenas[0], size, false);
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}
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void
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malloc_tsd_dalloc(void *wrapper)
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{
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idalloc(wrapper);
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}
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void
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malloc_tsd_no_cleanup(void *arg)
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{
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not_reached();
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}
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#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
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void
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_malloc_thread_cleanup(void)
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{
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bool pending[ncleanups], again;
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unsigned i;
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for (i = 0; i < ncleanups; i++)
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pending[i] = true;
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do {
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again = false;
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for (i = 0; i < ncleanups; i++) {
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if (pending[i]) {
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pending[i] = cleanups[i].f(cleanups[i].arg);
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if (pending[i])
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again = true;
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}
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}
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} while (again);
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}
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#endif
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void
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malloc_tsd_cleanup_register(bool (*f)(void *), void *arg)
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{
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assert(ncleanups < MALLOC_TSD_CLEANUPS_MAX);
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cleanups[ncleanups].f = f;
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cleanups[ncleanups].arg = arg;
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ncleanups++;
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}
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void
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malloc_tsd_boot(void)
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{
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ncleanups = 0;
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}
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