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Optimizations for Windows

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- Set opt_lg_chunk based on run-time OS setting
- Verify LG_PAGE is compatible with run-time OS setting
- When targeting Windows Vista or newer, use SRWLOCK instead of CRITICAL_SECTION
- When targeting Windows Vista or newer, statically initialize init_lock
This commit is contained in:
Matthijs 2015-06-25 22:53:58 +02:00
parent 241abc601b
commit a1aaf949a5
4 changed files with 36 additions and 2 deletions
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5
src/jemalloc.c
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@ -175,6 +175,9 @@ static bool malloc_initializer = NO_INITIALIZER;
/* Used to avoid initialization races. */
#ifdef _WIN32
#if _WIN32_WINNT >= 0x0600
static malloc_mutex_t init_lock = SRWLOCK_INIT;
#else
static malloc_mutex_t init_lock;
JEMALLOC_ATTR(constructor)
@ -190,7 +193,7 @@ _init_init_lock(void)
JEMALLOC_SECTION(".CRT$XCU") JEMALLOC_ATTR(used)
static const void (WINAPI *init_init_lock)(void) = _init_init_lock;
#endif
#endif
#else
static malloc_mutex_t init_lock = MALLOC_MUTEX_INITIALIZER;
#endif