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#ifdef JEMALLOC_INTERNAL_TSD_GENERIC_H
#error This file should be included only once, by tsd.h.
#endif
#define JEMALLOC_INTERNAL_TSD_GENERIC_H
typedef struct tsd_init_block_s tsd_init_block_t;
struct tsd_init_block_s {
ql_elm(tsd_init_block_t) link;
pthread_t thread;
void *data;
};
/* Defined in tsd.c, to allow the mutex headers to have tsd dependencies. */
typedef struct tsd_init_head_s tsd_init_head_t;
typedef struct {
bool initialized;
tsd_t val;
} tsd_wrapper_t;
void *tsd_init_check_recursion(tsd_init_head_t *head,
tsd_init_block_t *block);
void tsd_init_finish(tsd_init_head_t *head, tsd_init_block_t *block);
extern pthread_key_t tsd_tsd;
extern tsd_init_head_t tsd_init_head;
extern tsd_wrapper_t tsd_boot_wrapper;
extern bool tsd_booted;
/* Initialization/cleanup. */
JEMALLOC_ALWAYS_INLINE void
tsd_cleanup_wrapper(void *arg) {
tsd_wrapper_t *wrapper = (tsd_wrapper_t *)arg;
if (wrapper->initialized) {
wrapper->initialized = false;
tsd_cleanup(&wrapper->val);
if (wrapper->initialized) {
/* Trigger another cleanup round. */
if (pthread_setspecific(tsd_tsd, (void *)wrapper) != 0)
{
malloc_write("<jemalloc>: Error setting TSD\n");
if (opt_abort) {
abort();
}
}
return;
}
}
malloc_tsd_dalloc(wrapper);
}
JEMALLOC_ALWAYS_INLINE void
tsd_wrapper_set(tsd_wrapper_t *wrapper) {
if (unlikely(!tsd_booted)) {
return;
}
if (pthread_setspecific(tsd_tsd, (void *)wrapper) != 0) {
malloc_write("<jemalloc>: Error setting TSD\n");
abort();
}
}
JEMALLOC_ALWAYS_INLINE tsd_wrapper_t *
tsd_wrapper_get(bool init) {
tsd_wrapper_t *wrapper;
if (unlikely(!tsd_booted)) {
return &tsd_boot_wrapper;
}
wrapper = (tsd_wrapper_t *)pthread_getspecific(tsd_tsd);
if (init && unlikely(wrapper == NULL)) {
tsd_init_block_t block;
wrapper = (tsd_wrapper_t *)
tsd_init_check_recursion(&tsd_init_head, &block);
if (wrapper) {
return wrapper;
}
wrapper = (tsd_wrapper_t *)
malloc_tsd_malloc(sizeof(tsd_wrapper_t));
block.data = (void *)wrapper;
if (wrapper == NULL) {
malloc_write("<jemalloc>: Error allocating TSD\n");
abort();
} else {
wrapper->initialized = false;
JEMALLOC_DIAGNOSTIC_PUSH
JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS
tsd_t initializer = TSD_INITIALIZER;
JEMALLOC_DIAGNOSTIC_POP
wrapper->val = initializer;
}
tsd_wrapper_set(wrapper);
tsd_init_finish(&tsd_init_head, &block);
}
return wrapper;
}
JEMALLOC_ALWAYS_INLINE bool
tsd_boot0(void) {
tsd_wrapper_t *wrapper;
tsd_init_block_t block;
wrapper = (tsd_wrapper_t *)
tsd_init_check_recursion(&tsd_init_head, &block);
if (wrapper) {
return false;
}
block.data = &tsd_boot_wrapper;
if (pthread_key_create(&tsd_tsd, tsd_cleanup_wrapper) != 0) {
return true;
}
tsd_booted = true;
tsd_wrapper_set(&tsd_boot_wrapper);
tsd_init_finish(&tsd_init_head, &block);
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;
JEMALLOC_DIAGNOSTIC_PUSH
JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS
tsd_t initializer = TSD_INITIALIZER;
JEMALLOC_DIAGNOSTIC_POP
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;
}
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