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|
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/* Maximum number of malloc_tsd users with cleanup functions. */
#define MALLOC_TSD_CLEANUPS_MAX 2
typedef bool (*malloc_tsd_cleanup_t)(void);
#if (!defined(JEMALLOC_MALLOC_THREAD_CLEANUP) && !defined(JEMALLOC_TLS) && \
!defined(_WIN32))
typedef struct tsd_init_block_s tsd_init_block_t;
typedef struct tsd_init_head_s tsd_init_head_t;
#endif
typedef struct tsd_s tsd_t;
typedef enum {
tsd_state_uninitialized,
tsd_state_nominal,
tsd_state_purgatory,
tsd_state_reincarnated
} tsd_state_t;
/*
* TLS/TSD-agnostic macro-based implementation of thread-specific data. There
* are five macros that support (at least) three use cases: file-private,
* library-private, and library-private inlined. Following is an example
* library-private tsd variable:
*
* In example.h:
* typedef struct {
* int x;
* int y;
* } example_t;
* #define EX_INITIALIZER JEMALLOC_CONCAT({0, 0})
* malloc_tsd_types(example_, example_t)
* malloc_tsd_protos(, example_, example_t)
* malloc_tsd_externs(example_, example_t)
* In example.c:
* malloc_tsd_data(, example_, example_t, EX_INITIALIZER)
* malloc_tsd_funcs(, example_, example_t, EX_INITIALIZER,
* example_tsd_cleanup)
*
* The result is a set of generated functions, e.g.:
*
* bool example_tsd_boot(void) {...}
* example_t *example_tsd_get() {...}
* void example_tsd_set(example_t *val) {...}
*
* Note that all of the functions deal in terms of (a_type *) rather than
* (a_type) so that it is possible to support non-pointer types (unlike
* pthreads TSD). example_tsd_cleanup() is passed an (a_type *) pointer that is
* cast to (void *). This means that the cleanup function needs to cast the
* function argument to (a_type *), then dereference the resulting pointer to
* access fields, e.g.
*
* void
* example_tsd_cleanup(void *arg)
* {
* example_t *example = (example_t *)arg;
*
* example->x = 42;
* [...]
* if ([want the cleanup function to be called again])
* example_tsd_set(example);
* }
*
* If example_tsd_set() is called within example_tsd_cleanup(), it will be
* called again. This is similar to how pthreads TSD destruction works, except
* that pthreads only calls the cleanup function again if the value was set to
* non-NULL.
*/
/* malloc_tsd_types(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_types(a_name, a_type)
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_types(a_name, a_type)
#elif (defined(_WIN32))
#define malloc_tsd_types(a_name, a_type) \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##tsd_wrapper_t;
#else
#define malloc_tsd_types(a_name, a_type) \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##tsd_wrapper_t;
#endif
/* malloc_tsd_protos(). */
#define malloc_tsd_protos(a_attr, a_name, a_type) \
a_attr bool \
a_name##tsd_boot0(void); \
a_attr void \
a_name##tsd_boot1(void); \
a_attr bool \
a_name##tsd_boot(void); \
a_attr a_type * \
a_name##tsd_get(void); \
a_attr void \
a_name##tsd_set(a_type *val);
/* malloc_tsd_externs(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_externs(a_name, a_type) \
extern __thread a_type a_name##tsd_tls; \
extern __thread bool a_name##tsd_initialized; \
extern bool a_name##tsd_booted;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_externs(a_name, a_type) \
extern __thread a_type a_name##tsd_tls; \
extern pthread_key_t a_name##tsd_tsd; \
extern bool a_name##tsd_booted;
#elif (defined(_WIN32))
#define malloc_tsd_externs(a_name, a_type) \
extern DWORD a_name##tsd_tsd; \
extern a_name##tsd_wrapper_t a_name##tsd_boot_wrapper; \
extern bool a_name##tsd_booted;
#else
#define malloc_tsd_externs(a_name, a_type) \
extern pthread_key_t a_name##tsd_tsd; \
extern tsd_init_head_t a_name##tsd_init_head; \
extern a_name##tsd_wrapper_t a_name##tsd_boot_wrapper; \
extern bool a_name##tsd_booted;
#endif
/* malloc_tsd_data(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##tsd_tls = a_initializer; \
a_attr __thread bool JEMALLOC_TLS_MODEL \
a_name##tsd_initialized = false; \
a_attr bool a_name##tsd_booted = false;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##tsd_tls = a_initializer; \
a_attr pthread_key_t a_name##tsd_tsd; \
a_attr bool a_name##tsd_booted = false;
#elif (defined(_WIN32))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr DWORD a_name##tsd_tsd; \
a_attr a_name##tsd_wrapper_t a_name##tsd_boot_wrapper = { \
false, \
a_initializer \
}; \
a_attr bool a_name##tsd_booted = false;
#else
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr pthread_key_t a_name##tsd_tsd; \
a_attr tsd_init_head_t a_name##tsd_init_head = { \
ql_head_initializer(blocks), \
MALLOC_MUTEX_INITIALIZER \
}; \
a_attr a_name##tsd_wrapper_t a_name##tsd_boot_wrapper = { \
false, \
a_initializer \
}; \
a_attr bool a_name##tsd_booted = false;
#endif
/* malloc_tsd_funcs(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_cleanup_wrapper(void) \
{ \
\
if (a_name##tsd_initialized) { \
a_name##tsd_initialized = false; \
a_cleanup(&a_name##tsd_tls); \
} \
return (a_name##tsd_initialized); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##tsd_cleanup_wrapper); \
} \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
\
/* Do nothing. */ \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
return (a_name##tsd_boot0()); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
{ \
\
assert(a_name##tsd_booted); \
return (&a_name##tsd_tls); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
{ \
\
assert(a_name##tsd_booted); \
a_name##tsd_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
a_name##tsd_initialized = true; \
}
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_key_create(&a_name##tsd_tsd, a_cleanup) != \
0) \
return (true); \
} \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
\
/* Do nothing. */ \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
return (a_name##tsd_boot0()); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
{ \
\
assert(a_name##tsd_booted); \
return (&a_name##tsd_tls); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
{ \
\
assert(a_name##tsd_booted); \
a_name##tsd_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_setspecific(a_name##tsd_tsd, \
(void *)(&a_name##tsd_tls))) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
} \
} \
}
#elif (defined(_WIN32))
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_cleanup_wrapper(void) \
{ \
DWORD error = GetLastError(); \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
TlsGetValue(a_name##tsd_tsd); \
SetLastError(error); \
\
if (wrapper == NULL) \
return (false); \
if (a_cleanup != malloc_tsd_no_cleanup && \
wrapper->initialized) { \
wrapper->initialized = false; \
a_cleanup(&wrapper->val); \
if (wrapper->initialized) { \
/* Trigger another cleanup round. */ \
return (true); \
} \
} \
malloc_tsd_dalloc(wrapper); \
return (false); \
} \
a_attr void \
a_name##tsd_wrapper_set(a_name##tsd_wrapper_t *wrapper) \
{ \
\
if (!TlsSetValue(a_name##tsd_tsd, (void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
} \
} \
a_attr a_name##tsd_wrapper_t * \
a_name##tsd_wrapper_get(void) \
{ \
DWORD error = GetLastError(); \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
TlsGetValue(a_name##tsd_tsd); \
SetLastError(error); \
\
if (unlikely(wrapper == NULL)) { \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} else { \
wrapper->initialized = false; \
wrapper->val = a_initializer; \
} \
a_name##tsd_wrapper_set(wrapper); \
} \
return (wrapper); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
a_name##tsd_tsd = TlsAlloc(); \
if (a_name##tsd_tsd == TLS_OUT_OF_INDEXES) \
return (true); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##tsd_cleanup_wrapper); \
} \
a_name##tsd_wrapper_set(&a_name##tsd_boot_wrapper); \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} \
memcpy(wrapper, &a_name##tsd_boot_wrapper, \
sizeof(a_name##tsd_wrapper_t)); \
a_name##tsd_wrapper_set(wrapper); \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
if (a_name##tsd_boot0()) \
return (true); \
a_name##tsd_boot1(); \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
return (&wrapper->val); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
{ \
a_name##tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
wrapper->val = *(val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
wrapper->initialized = true; \
}
#else
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr void \
a_name##tsd_cleanup_wrapper(void *arg) \
{ \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *)arg; \
\
if (a_cleanup != malloc_tsd_no_cleanup && \
wrapper->initialized) { \
wrapper->initialized = false; \
a_cleanup(&wrapper->val); \
if (wrapper->initialized) { \
/* Trigger another cleanup round. */ \
if (pthread_setspecific(a_name##tsd_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
} \
return; \
} \
} \
malloc_tsd_dalloc(wrapper); \
} \
a_attr void \
a_name##tsd_wrapper_set(a_name##tsd_wrapper_t *wrapper) \
{ \
\
if (pthread_setspecific(a_name##tsd_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
} \
} \
a_attr a_name##tsd_wrapper_t * \
a_name##tsd_wrapper_get(void) \
{ \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
pthread_getspecific(a_name##tsd_tsd); \
\
if (unlikely(wrapper == NULL)) { \
tsd_init_block_t block; \
wrapper = tsd_init_check_recursion( \
&a_name##tsd_init_head, &block); \
if (wrapper) \
return (wrapper); \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
block.data = wrapper; \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} else { \
wrapper->initialized = false; \
wrapper->val = a_initializer; \
} \
a_name##tsd_wrapper_set(wrapper); \
tsd_init_finish(&a_name##tsd_init_head, &block); \
} \
return (wrapper); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
if (pthread_key_create(&a_name##tsd_tsd, \
a_name##tsd_cleanup_wrapper) != 0) \
return (true); \
a_name##tsd_wrapper_set(&a_name##tsd_boot_wrapper); \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} \
memcpy(wrapper, &a_name##tsd_boot_wrapper, \
sizeof(a_name##tsd_wrapper_t)); \
a_name##tsd_wrapper_set(wrapper); \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
if (a_name##tsd_boot0()) \
return (true); \
a_name##tsd_boot1(); \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
return (&wrapper->val); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
{ \
a_name##tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
wrapper->val = *(val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
wrapper->initialized = true; \
}
#endif
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#if (!defined(JEMALLOC_MALLOC_THREAD_CLEANUP) && !defined(JEMALLOC_TLS) && \
!defined(_WIN32))
struct tsd_init_block_s {
ql_elm(tsd_init_block_t) link;
pthread_t thread;
void *data;
};
struct tsd_init_head_s {
ql_head(tsd_init_block_t) blocks;
malloc_mutex_t lock;
};
#endif
#define MALLOC_TSD \
/* O(name, type) */ \
O(tcache, tcache_t *) \
O(thread_allocated, uint64_t) \
O(thread_deallocated, uint64_t) \
O(prof_tdata, prof_tdata_t *) \
O(arena, arena_t *) \
O(arenas_cache, arena_t **) \
O(narenas_cache, unsigned) \
O(arenas_cache_bypass, bool) \
O(tcache_enabled, tcache_enabled_t) \
O(quarantine, quarantine_t *) \
#define TSD_INITIALIZER { \
tsd_state_uninitialized, \
NULL, \
0, \
0, \
NULL, \
NULL, \
NULL, \
0, \
false, \
tcache_enabled_default, \
NULL \
}
struct tsd_s {
tsd_state_t state;
#define O(n, t) \
t n;
MALLOC_TSD
#undef O
};
static const tsd_t tsd_initializer = TSD_INITIALIZER;
malloc_tsd_types(, tsd_t)
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *malloc_tsd_malloc(size_t size);
void malloc_tsd_dalloc(void *wrapper);
void malloc_tsd_no_cleanup(void *arg);
void malloc_tsd_cleanup_register(bool (*f)(void));
bool malloc_tsd_boot0(void);
void malloc_tsd_boot1(void);
#if (!defined(JEMALLOC_MALLOC_THREAD_CLEANUP) && !defined(JEMALLOC_TLS) && \
!defined(_WIN32))
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);
#endif
void tsd_cleanup(void *arg);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), , tsd_t)
tsd_t *tsd_fetch(void);
bool tsd_nominal(tsd_t *tsd);
#define O(n, t) \
t *tsd_##n##p_get(tsd_t *tsd); \
t tsd_##n##_get(tsd_t *tsd); \
void tsd_##n##_set(tsd_t *tsd, t n);
MALLOC_TSD
#undef O
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TSD_C_))
malloc_tsd_externs(, tsd_t)
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, , tsd_t, tsd_initializer, tsd_cleanup)
JEMALLOC_ALWAYS_INLINE tsd_t *
tsd_fetch(void)
{
tsd_t *tsd = tsd_get();
if (unlikely(tsd->state != tsd_state_nominal)) {
if (tsd->state == tsd_state_uninitialized) {
tsd->state = tsd_state_nominal;
/* Trigger cleanup handler registration. */
tsd_set(tsd);
} else if (tsd->state == tsd_state_purgatory) {
tsd->state = tsd_state_reincarnated;
tsd_set(tsd);
} else
assert(tsd->state == tsd_state_reincarnated);
}
return (tsd);
}
JEMALLOC_INLINE bool
tsd_nominal(tsd_t *tsd)
{
return (tsd->state == tsd_state_nominal);
}
#define O(n, t) \
JEMALLOC_ALWAYS_INLINE t * \
tsd_##n##p_get(tsd_t *tsd) \
{ \
\
return (&tsd->n); \
} \
\
JEMALLOC_ALWAYS_INLINE t \
tsd_##n##_get(tsd_t *tsd) \
{ \
\
return (*tsd_##n##p_get(tsd)); \
} \
\
JEMALLOC_ALWAYS_INLINE void \
tsd_##n##_set(tsd_t *tsd, t n) \
{ \
\
assert(tsd->state == tsd_state_nominal); \
tsd->n = n; \
}
MALLOC_TSD
#undef O
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
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