Implement tsd.

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.
This commit is contained in:
Jason Evans
2012-03-21 18:33:03 -07:00
parent 154829d256
commit cd9a1346e9
19 changed files with 705 additions and 363 deletions

View File

@@ -391,6 +391,7 @@ unsigned arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info,
prof_ctx_t *arena_prof_ctx_get(const void *ptr);
void arena_prof_ctx_set(const void *ptr, prof_ctx_t *ctx);
void *arena_malloc(size_t size, bool zero);
void *arena_malloc_prechosen(arena_t *arena, size_t size, bool zero);
void arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr);
#endif
@@ -552,7 +553,7 @@ arena_malloc(size_t size, bool zero)
tcache_t *tcache;
assert(size != 0);
assert(QUANTUM_CEILING(size) <= arena_maxclass);
assert(size <= arena_maxclass);
if (size <= SMALL_MAXCLASS) {
if ((tcache = tcache_get()) != NULL)
@@ -571,6 +572,19 @@ arena_malloc(size_t size, bool zero)
}
}
JEMALLOC_INLINE void *
arena_malloc_prechosen(arena_t *arena, size_t size, bool zero)
{
assert(size != 0);
assert(size <= arena_maxclass);
if (size <= SMALL_MAXCLASS)
return (arena_malloc_small(arena, size, zero));
else
return (arena_malloc_large(arena, size, zero));
}
JEMALLOC_INLINE void
arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr)
{

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@@ -44,7 +44,8 @@ extern size_t arena_maxclass; /* Max size class for arenas. */
void *chunk_alloc(size_t size, bool base, bool *zero);
void chunk_dealloc(void *chunk, size_t size, bool unmap);
bool chunk_boot(void);
bool chunk_boot0(void);
bool chunk_boot1(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/

View File

@@ -289,6 +289,7 @@ static const bool config_ivsalloc =
#include "jemalloc/internal/stats.h"
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/extent.h"
#include "jemalloc/internal/arena.h"
@@ -316,6 +317,7 @@ static const bool config_ivsalloc =
#include "jemalloc/internal/stats.h"
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/bitmap.h"
#include "jemalloc/internal/extent.h"
@@ -335,6 +337,11 @@ typedef struct {
uint64_t allocated;
uint64_t deallocated;
} thread_allocated_t;
/*
* The JEMALLOC_CONCAT() wrapper is necessary to pass {0, 0} via a cpp macro
* argument.
*/
#define THREAD_ALLOCATED_INITIALIZER JEMALLOC_CONCAT({0, 0})
#undef JEMALLOC_H_STRUCTS
/******************************************************************************/
@@ -356,25 +363,6 @@ extern size_t lg_pagesize;
extern unsigned ncpus;
extern malloc_mutex_t arenas_lock; /* Protects arenas initialization. */
extern pthread_key_t arenas_tsd;
#ifdef JEMALLOC_TLS
/*
* Map of pthread_self() --> arenas[???], used for selecting an arena to use
* for allocations.
*/
extern __thread arena_t *arenas_tls JEMALLOC_ATTR(tls_model("initial-exec"));
# define ARENA_GET() arenas_tls
# define ARENA_SET(v) do { \
arenas_tls = (v); \
pthread_setspecific(arenas_tsd, (void *)(v)); \
} while (0)
#else
# define ARENA_GET() ((arena_t *)pthread_getspecific(arenas_tsd))
# define ARENA_SET(v) do { \
pthread_setspecific(arenas_tsd, (void *)(v)); \
} while (0)
#endif
/*
* Arenas that are used to service external requests. Not all elements of the
* arenas array are necessarily used; arenas are created lazily as needed.
@@ -382,31 +370,8 @@ extern __thread arena_t *arenas_tls JEMALLOC_ATTR(tls_model("initial-exec"));
extern arena_t **arenas;
extern unsigned narenas;
#ifdef JEMALLOC_TLS
extern __thread thread_allocated_t thread_allocated_tls;
# define ALLOCATED_GET() (thread_allocated_tls.allocated)
# define ALLOCATEDP_GET() (&thread_allocated_tls.allocated)
# define DEALLOCATED_GET() (thread_allocated_tls.deallocated)
# define DEALLOCATEDP_GET() (&thread_allocated_tls.deallocated)
# define ALLOCATED_ADD(a, d) do { \
thread_allocated_tls.allocated += a; \
thread_allocated_tls.deallocated += d; \
} while (0)
#else
# define ALLOCATED_GET() (thread_allocated_get()->allocated)
# define ALLOCATEDP_GET() (&thread_allocated_get()->allocated)
# define DEALLOCATED_GET() (thread_allocated_get()->deallocated)
# define DEALLOCATEDP_GET() (&thread_allocated_get()->deallocated)
# define ALLOCATED_ADD(a, d) do { \
thread_allocated_t *thread_allocated = thread_allocated_get(); \
thread_allocated->allocated += (a); \
thread_allocated->deallocated += (d); \
} while (0)
#endif
extern pthread_key_t thread_allocated_tsd;
thread_allocated_t *thread_allocated_get_hard(void);
arena_t *arenas_extend(unsigned ind);
void arenas_cleanup(void *arg);
arena_t *choose_arena_hard(void);
void jemalloc_prefork(void);
void jemalloc_postfork_parent(void);
@@ -420,6 +385,7 @@ void jemalloc_postfork_child(void);
#include "jemalloc/internal/stats.h"
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/bitmap.h"
#include "jemalloc/internal/extent.h"
@@ -447,6 +413,7 @@ void jemalloc_postfork_child(void);
#include "jemalloc/internal/stats.h"
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/extent.h"
#include "jemalloc/internal/base.h"
@@ -454,13 +421,21 @@ void jemalloc_postfork_child(void);
#include "jemalloc/internal/huge.h"
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), arenas, arena_t *)
size_t s2u(size_t size);
size_t sa2u(size_t size, size_t alignment, size_t *run_size_p);
arena_t *choose_arena(void);
thread_allocated_t *thread_allocated_get(void);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_))
/*
* Map of pthread_self() --> arenas[???], used for selecting an arena to use
* for allocations.
*/
malloc_tsd_externs(arenas, arena_t *)
malloc_tsd_funcs(JEMALLOC_INLINE, arenas, arena_t *, NULL, arenas_cleanup)
/*
* Compute usable size that would result from allocating an object with the
* specified size.
@@ -572,25 +547,13 @@ choose_arena(void)
{
arena_t *ret;
ret = ARENA_GET();
if (ret == NULL) {
if ((ret = *arenas_tsd_get()) == NULL) {
ret = choose_arena_hard();
assert(ret != NULL);
}
return (ret);
}
JEMALLOC_INLINE thread_allocated_t *
thread_allocated_get(void)
{
thread_allocated_t *thread_allocated = (thread_allocated_t *)
pthread_getspecific(thread_allocated_tsd);
if (thread_allocated == NULL)
return (thread_allocated_get_hard());
return (thread_allocated);
}
#endif
#include "jemalloc/internal/bitmap.h"
@@ -611,6 +574,7 @@ size_t ivsalloc(const void *ptr);
void idalloc(void *ptr);
void *iralloc(void *ptr, size_t size, size_t extra, size_t alignment,
bool zero, bool no_move);
malloc_tsd_protos(JEMALLOC_ATTR(unused), thread_allocated, thread_allocated_t)
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_))
@@ -787,6 +751,10 @@ iralloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero,
}
}
}
malloc_tsd_externs(thread_allocated, thread_allocated_t)
malloc_tsd_funcs(JEMALLOC_INLINE, thread_allocated, thread_allocated_t,
THREAD_ALLOCATED_INITIALIZER, malloc_tsd_no_cleanup)
#endif
#include "jemalloc/internal/prof.h"

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@@ -155,10 +155,8 @@
#define malloc_mutex_unlock JEMALLOC_N(malloc_mutex_unlock)
#define malloc_printf JEMALLOC_N(malloc_printf)
#define malloc_snprintf JEMALLOC_N(malloc_snprintf)
#define malloc_tprintf JEMALLOC_N(malloc_tprintf)
#define malloc_vcprintf JEMALLOC_N(malloc_vcprintf)
#define malloc_vsnprintf JEMALLOC_N(malloc_vsnprintf)
#define malloc_vtprintf JEMALLOC_N(malloc_vtprintf)
#define malloc_write JEMALLOC_N(malloc_write)
#define mb_write JEMALLOC_N(mb_write)
#define opt_abort JEMALLOC_N(opt_abort)

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@@ -23,10 +23,13 @@ typedef struct prof_tdata_s prof_tdata_t;
#define PROF_TCMAX 1024
/* Initial hash table size. */
#define PROF_CKH_MINITEMS 64
#define PROF_CKH_MINITEMS 64
/* Size of memory buffer to use when writing dump files. */
#define PROF_DUMP_BUF_SIZE 65536
#define PROF_DUMP_BUFSIZE 65536
/* Size of stack-allocated buffer used by prof_printf(). */
#define PROF_PRINTF_BUFSIZE 128
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
@@ -179,29 +182,6 @@ extern uint64_t prof_interval;
*/
extern bool prof_promote;
/* Thread-specific backtrace cache, used to reduce bt2ctx contention. */
#ifdef JEMALLOC_TLS
extern __thread prof_tdata_t *prof_tdata_tls
JEMALLOC_ATTR(tls_model("initial-exec"));
# define PROF_TCACHE_GET() prof_tdata_tls
# define PROF_TCACHE_SET(v) do { \
prof_tdata_tls = (v); \
pthread_setspecific(prof_tdata_tsd, (void *)(v)); \
} while (0)
#else
# define PROF_TCACHE_GET() \
((prof_tdata_t *)pthread_getspecific(prof_tdata_tsd))
# define PROF_TCACHE_SET(v) do { \
pthread_setspecific(prof_tdata_tsd, (void *)(v)); \
} while (0)
#endif
/*
* Same contents as b2cnt_tls, but initialized such that the TSD destructor is
* called when a thread exits, so that prof_tdata_tls contents can be merged,
* unlinked, and deallocated.
*/
extern pthread_key_t prof_tdata_tsd;
void bt_init(prof_bt_t *bt, void **vec);
void prof_backtrace(prof_bt_t *bt, unsigned nignore);
prof_thr_cnt_t *prof_lookup(prof_bt_t *bt);
@@ -209,6 +189,7 @@ void prof_idump(void);
bool prof_mdump(const char *filename);
void prof_gdump(void);
prof_tdata_t *prof_tdata_init(void);
void prof_tdata_cleanup(void *arg);
void prof_boot0(void);
void prof_boot1(void);
bool prof_boot2(void);
@@ -223,7 +204,7 @@ bool prof_boot2(void);
\
assert(size == s2u(size)); \
\
prof_tdata = PROF_TCACHE_GET(); \
prof_tdata = *prof_tdata_tsd_get(); \
if (prof_tdata == NULL) { \
prof_tdata = prof_tdata_init(); \
if (prof_tdata == NULL) { \
@@ -270,6 +251,8 @@ bool prof_boot2(void);
} while (0)
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), prof_tdata, prof_tdata_t *)
void prof_sample_threshold_update(prof_tdata_t *prof_tdata);
prof_ctx_t *prof_ctx_get(const void *ptr);
void prof_ctx_set(const void *ptr, prof_ctx_t *ctx);
@@ -281,6 +264,11 @@ void prof_free(const void *ptr, size_t size);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_PROF_C_))
/* Thread-specific backtrace cache, used to reduce bt2ctx contention. */
malloc_tsd_externs(prof_tdata, prof_tdata_t *)
malloc_tsd_funcs(JEMALLOC_INLINE, prof_tdata, prof_tdata_t *, NULL,
prof_tdata_cleanup)
JEMALLOC_INLINE void
prof_sample_threshold_update(prof_tdata_t *prof_tdata)
{
@@ -359,7 +347,7 @@ prof_sample_accum_update(size_t size)
/* Sampling logic is unnecessary if the interval is 1. */
assert(opt_lg_prof_sample != 0);
prof_tdata = PROF_TCACHE_GET();
prof_tdata = *prof_tdata_tsd_get();
assert(prof_tdata != NULL);
/* Take care to avoid integer overflow. */

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@@ -75,23 +75,6 @@ extern ssize_t opt_lg_tcache_max;
extern tcache_bin_info_t *tcache_bin_info;
/* Map of thread-specific caches. */
#ifdef JEMALLOC_TLS
extern __thread tcache_t *tcache_tls
JEMALLOC_ATTR(tls_model("initial-exec"));
# define TCACHE_GET() tcache_tls
# define TCACHE_SET(v) do { \
tcache_tls = (tcache_t *)(v); \
pthread_setspecific(tcache_tsd, (void *)(v)); \
} while (0)
#else
# define TCACHE_GET() ((tcache_t *)pthread_getspecific(tcache_tsd))
# define TCACHE_SET(v) do { \
pthread_setspecific(tcache_tsd, (void *)(v)); \
} while (0)
#endif
extern pthread_key_t tcache_tsd;
/*
* Number of tcache bins. There are NBINS small-object bins, plus 0 or more
* large-object bins.
@@ -105,18 +88,24 @@ void tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache);
void tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache);
void tcache_arena_associate(tcache_t *tcache, arena_t *arena);
void tcache_arena_dissociate(tcache_t *tcache);
tcache_t *tcache_create(arena_t *arena);
void *tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin,
size_t binind);
void tcache_destroy(tcache_t *tcache);
void tcache_thread_cleanup(void *arg);
void tcache_stats_merge(tcache_t *tcache, arena_t *arena);
bool tcache_boot(void);
bool tcache_boot0(void);
bool tcache_boot1(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), tcache, tcache_t *)
void tcache_event(tcache_t *tcache);
tcache_t *tcache_get(void);
void *tcache_alloc_easy(tcache_bin_t *tbin);
@@ -127,6 +116,11 @@ void tcache_dalloc_large(tcache_t *tcache, void *ptr, size_t size);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TCACHE_C_))
/* Map of thread-specific caches. */
malloc_tsd_externs(tcache, tcache_t *)
malloc_tsd_funcs(JEMALLOC_INLINE, tcache, tcache_t *, NULL,
tcache_thread_cleanup)
JEMALLOC_INLINE tcache_t *
tcache_get(void)
{
@@ -139,7 +133,7 @@ tcache_get(void)
else if (opt_tcache == false)
return (NULL);
tcache = TCACHE_GET();
tcache = *tcache_tsd_get();
if ((uintptr_t)tcache <= (uintptr_t)2) {
if (tcache == NULL) {
tcache = tcache_create(choose_arena());
@@ -152,7 +146,8 @@ tcache_get(void)
* called after the tcache_thread_cleanup() was
* called.
*/
TCACHE_SET((uintptr_t)2);
tcache = (tcache_t *)(uintptr_t)2;
tcache_tsd_set(&tcache);
}
return (NULL);
}

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@@ -0,0 +1,319 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/* Maximum number of malloc_tsd users with cleanup functions. */
#define MALLOC_TSD_CLEANUPS_MAX 8
typedef struct malloc_tsd_cleanup_s malloc_tsd_cleanup_t;
struct malloc_tsd_cleanup_s {
bool (*f)(void *);
void *arg;
};
/*
* TLS/TSD-agnostic macro-based implementation of thread-specific data. There
* are four 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_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 *and*
* dereference the function argument, e.g.:
*
* void
* example_tsd_cleanup(void *arg)
* {
* example_t *example = *(example_t **)arg;
*
* [...]
* 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_protos(). */
#define malloc_tsd_protos(a_attr, a_name, a_type) \
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##_tls; \
extern __thread bool *a_name##_initialized; \
extern bool a_name##_booted;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_externs(a_name, a_type) \
extern __thread a_type a_name##_tls; \
extern pthread_key_t a_name##_tsd; \
extern bool a_name##_booted;
#else
#define malloc_tsd_externs(a_name, a_type) \
extern pthread_key_t a_name##_tsd; \
extern bool a_name##_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_ATTR(tls_model("initial-exec")) \
a_name##_tls = a_initializer; \
a_attr __thread bool JEMALLOC_ATTR(tls_model("initial-exec")) \
a_name##_initialized = false; \
a_attr bool a_name##_booted = false;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_ATTR(tls_model("initial-exec")) \
a_name##_tls = a_initializer; \
a_attr pthread_key_t a_name##_tsd; \
a_attr bool a_name##_booted = false;
#else
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr pthread_key_t a_name##_tsd; \
a_attr bool a_name##_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 void \
a_name##_tsd_cleanup_wrapper(void *arg) \
{ \
\
} \
bool \
a_name##_tsd_cleanup_pending(void *arg) \
{ \
bool (*cleanup)(void *) = arg; \
\
if (a_name##_initialized) { \
a_name##_initialized = false; \
cleanup(&a_name##_tls); \
} \
return (a_name##_initialized); \
} \
a_attr bool \
a_name##_tsd_boot(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##_tsd_cleanup_pending, a_cleanup); \
} \
a_name##_booted = true; \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##_tsd_get(void) \
{ \
\
assert(a_name##_booted); \
return (&a_name##_tls); \
} \
a_attr void \
a_name##_tsd_set(a_type *val) \
{ \
\
assert(a_name##_booted); \
a_name##_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
a_name##_initialized = true; \
}
#elif (defined(JEMALLOC_TLS))
#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_attr bool \
a_name##_tsd_boot(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_key_create(&a_name##_tsd, a_cleanup) != 0) \
return (true); \
} \
a_name##_booted = true; \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##_tsd_get(void) \
{ \
\
assert(a_name##_booted); \
return (&a_name##_tls); \
} \
a_attr void \
a_name##_tsd_set(a_type *val) \
{ \
\
assert(a_name##_booted); \
a_name##_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_setspecific(a_name##_tsd, \
(void *)(&a_name##_tls))) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
} \
} \
}
#else
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Data structure. */ \
typedef struct { \
bool isstatic; \
bool initialized; \
a_type val; \
} a_name##_tsd_wrapper_t; \
/* 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, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
} \
return; \
} \
} \
if (wrapper->isstatic == false) \
malloc_tsd_dalloc(wrapper); \
} \
a_attr bool \
a_name##_tsd_boot(void) \
{ \
\
if (pthread_key_create(&a_name##_tsd, \
a_name##_tsd_cleanup_wrapper) != 0) \
return (true); \
a_name##_booted = true; \
return (false); \
} \
/* Get/set. */ \
a_attr a_name##_tsd_wrapper_t * \
a_name##_tsd_get_wrapper(void) \
{ \
a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *) \
pthread_getspecific(a_name##_tsd); \
\
if (wrapper == NULL) { \
wrapper = (a_name##_tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##_tsd_wrapper_t)); \
if (wrapper == NULL) { \
static a_name##_tsd_wrapper_t \
a_name##_tsd_static_data = \
{true, false, a_initializer}; \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
wrapper = &a_name##_tsd_static_data; \
} else { \
static a_type tsd_static_data = a_initializer; \
wrapper->isstatic = false; \
wrapper->val = tsd_static_data; \
} \
if (pthread_setspecific(a_name##_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
if (opt_abort) \
abort(); \
} \
} \
return (wrapper); \
} \
a_attr a_type * \
a_name##_tsd_get(void) \
{ \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
return (&wrapper->val); \
} \
a_attr void \
a_name##_tsd_set(a_type *val) \
{ \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
wrapper->val = *(val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
wrapper->initialized = true; \
}
#endif
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#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 *);
void malloc_tsd_cleanup_register(bool (*f)(void *), void *arg);
void malloc_tsd_boot(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -5,11 +5,17 @@
#define BUFERROR_BUF 64
/*
* Size of static buffer used by malloc_[v]{,c,t}printf(). This must be large
* enough for all possible uses within jemalloc.
* Size of stack-allocated buffer used by malloc_{,v,vc}printf(). This must be
* large enough for all possible uses within jemalloc.
*/
#define MALLOC_PRINTF_BUFSIZE 4096
/*
* Wrap a cpp argument that contains commas such that it isn't broken up into
* multiple arguments.
*/
#define JEMALLOC_CONCAT(...) __VA_ARGS__
/*
* Define a custom assert() in order to reduce the chances of deadlock during
* assertion failure.
@@ -77,13 +83,6 @@ int malloc_vsnprintf(char *str, size_t size, const char *format,
va_list ap);
int malloc_snprintf(char *str, size_t size, const char *format, ...)
JEMALLOC_ATTR(format(printf, 3, 4));
/*
* malloc_[v]tprintf() prints to a thread-local string buffer, so the result is
* overwritten by the next call to malloc_[v]{,c,t}printf().
*/
const char * malloc_vtprintf(const char *format, va_list ap);
const char * malloc_tprintf(const char *format, ...)
JEMALLOC_ATTR(format(printf, 1, 2));
void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque,
const char *format, va_list ap);
void malloc_cprintf(void (*write)(void *, const char *), void *cbopaque,

View File

@@ -59,6 +59,15 @@
*/
#undef JEMALLOC_OSSPIN
/*
* Defined if _malloc_thread_cleanup() exists. At least in the case of
* FreeBSD, pthread_key_create() allocates, which if used during malloc
* bootstrapping will cause recursion into the pthreads library. Therefore, if
* _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in
* malloc_tsd.
*/
#undef JEMALLOC_MALLOC_THREAD_CLEANUP
/* Defined if __attribute__((...)) syntax is supported. */
#undef JEMALLOC_HAVE_ATTR
#ifdef JEMALLOC_HAVE_ATTR