| #ifdef JEMALLOC_INTERNAL_TSD_WIN_H |
| #error This file should be included only once, by tsd.h. |
| #endif |
| #define JEMALLOC_INTERNAL_TSD_WIN_H |
| |
| typedef struct { |
| bool initialized; |
| tsd_t val; |
| } tsd_wrapper_t; |
| |
| extern DWORD tsd_tsd; |
| extern tsd_wrapper_t tsd_boot_wrapper; |
| extern bool tsd_booted; |
| |
| /* Initialization/cleanup. */ |
| JEMALLOC_ALWAYS_INLINE bool |
| tsd_cleanup_wrapper(void) { |
| DWORD error = GetLastError(); |
| tsd_wrapper_t *wrapper = (tsd_wrapper_t *)TlsGetValue(tsd_tsd); |
| SetLastError(error); |
| |
| if (wrapper == NULL) { |
| return false; |
| } |
| |
| if (wrapper->initialized) { |
| wrapper->initialized = false; |
| tsd_cleanup(&wrapper->val); |
| if (wrapper->initialized) { |
| /* Trigger another cleanup round. */ |
| return true; |
| } |
| } |
| malloc_tsd_dalloc(wrapper); |
| return false; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE void |
| tsd_wrapper_set(tsd_wrapper_t *wrapper) { |
| if (!TlsSetValue(tsd_tsd, (void *)wrapper)) { |
| malloc_write("<jemalloc>: Error setting TSD\n"); |
| abort(); |
| } |
| } |
| |
| JEMALLOC_ALWAYS_INLINE tsd_wrapper_t * |
| tsd_wrapper_get(bool init) { |
| DWORD error = GetLastError(); |
| tsd_wrapper_t *wrapper = (tsd_wrapper_t *) TlsGetValue(tsd_tsd); |
| SetLastError(error); |
| |
| if (init && unlikely(wrapper == NULL)) { |
| wrapper = (tsd_wrapper_t *) |
| malloc_tsd_malloc(sizeof(tsd_wrapper_t)); |
| if (wrapper == NULL) { |
| malloc_write("<jemalloc>: Error allocating TSD\n"); |
| abort(); |
| } else { |
| wrapper->initialized = false; |
| /* MSVC is finicky about aggregate initialization. */ |
| tsd_t tsd_initializer = TSD_INITIALIZER; |
| wrapper->val = tsd_initializer; |
| } |
| tsd_wrapper_set(wrapper); |
| } |
| return wrapper; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE bool |
| tsd_boot0(void) { |
| tsd_tsd = TlsAlloc(); |
| if (tsd_tsd == TLS_OUT_OF_INDEXES) { |
| return true; |
| } |
| malloc_tsd_cleanup_register(&tsd_cleanup_wrapper); |
| tsd_wrapper_set(&tsd_boot_wrapper); |
| tsd_booted = true; |
| return false; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE void |
| tsd_boot1(void) { |
| tsd_wrapper_t *wrapper; |
| wrapper = (tsd_wrapper_t *) |
| malloc_tsd_malloc(sizeof(tsd_wrapper_t)); |
| if (wrapper == NULL) { |
| malloc_write("<jemalloc>: Error allocating TSD\n"); |
| abort(); |
| } |
| tsd_boot_wrapper.initialized = false; |
| tsd_cleanup(&tsd_boot_wrapper.val); |
| wrapper->initialized = false; |
| tsd_t initializer = TSD_INITIALIZER; |
| wrapper->val = initializer; |
| tsd_wrapper_set(wrapper); |
| } |
| JEMALLOC_ALWAYS_INLINE bool |
| tsd_boot(void) { |
| if (tsd_boot0()) { |
| return true; |
| } |
| tsd_boot1(); |
| return false; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE bool |
| tsd_booted_get(void) { |
| return tsd_booted; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE bool |
| tsd_get_allocates(void) { |
| return true; |
| } |
| |
| /* Get/set. */ |
| JEMALLOC_ALWAYS_INLINE tsd_t * |
| tsd_get(bool init) { |
| tsd_wrapper_t *wrapper; |
| |
| assert(tsd_booted); |
| wrapper = tsd_wrapper_get(init); |
| if (tsd_get_allocates() && !init && wrapper == NULL) { |
| return NULL; |
| } |
| return &wrapper->val; |
| } |
| |
| JEMALLOC_ALWAYS_INLINE void |
| tsd_set(tsd_t *val) { |
| tsd_wrapper_t *wrapper; |
| |
| assert(tsd_booted); |
| wrapper = tsd_wrapper_get(true); |
| if (likely(&wrapper->val != val)) { |
| wrapper->val = *(val); |
| } |
| wrapper->initialized = true; |
| } |