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Use thread_local compiler specifics

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Much faster then pthread_getspecific() but still a
speed regression against the original code.

Following are the nps on a bench:

Position
454165
454838
455433

tls
441046
442767
442767

ms (Win)
450521
447510
451105

ms (pthread)
422115
422115
424276

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-04-06 17:01:41 +01:00
parent bed4075580
commit b1f57e92ce
7 changed files with 17 additions and 24 deletions
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10
src/platform.h
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@@ -54,7 +54,6 @@ inline uint64_t time_to_msec(const sys_time_t& t) { return t.tv_sec * 1000LL + t
typedef pthread_mutex_t Lock;
typedef pthread_cond_t WaitCondition;
typedef pthread_t NativeHandle;
typedef pthread_key_t ThreadLocalStorageKey;
typedef void*(*pt_start_fn)(void*);
# define lock_init(x) pthread_mutex_init(&(x), NULL)
@@ -68,10 +67,6 @@ typedef void*(*pt_start_fn)(void*);
# define cond_timedwait(x,y,z) pthread_cond_timedwait(&(x),&(y),z)
# define thread_create(x,f,t) !pthread_create(&(x),NULL,(pt_start_fn)f,t)
# define thread_join(x) pthread_join(x, NULL)
# define tls_init(k) pthread_key_create(&k,NULL)
# define tls_get(k) pthread_getspecific(k)
# define tls_set(k,x) pthread_setspecific(k,x)
# define tls_destroy(k) pthread_key_delete(k)
#else // Windows and MinGW
@@ -96,7 +91,6 @@ inline uint64_t time_to_msec(const sys_time_t& t) { return t.time * 1000LL + t.m
typedef CRITICAL_SECTION Lock;
typedef HANDLE WaitCondition;
typedef HANDLE NativeHandle;
typedef DWORD ThreadLocalStorageKey;
# define lock_init(x) InitializeCriticalSection(&(x))
# define lock_grab(x) EnterCriticalSection(&(x))
@@ -109,10 +103,6 @@ typedef DWORD ThreadLocalStorageKey;
# define cond_timedwait(x,y,z) { lock_release(y); WaitForSingleObject(x,z); lock_grab(y); }
# define thread_create(x,f,t) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,t,0,NULL), x != NULL)
# define thread_join(x) { WaitForSingleObject(x, INFINITE); CloseHandle(x); }
# define tls_init(k) do { k = TlsAlloc(); } while(0)
# define tls_get(k) TlsGetValue(k)
# define tls_set(k,x) TlsSetValue(k,x)
# define tls_destroy(k) TlsFree(k)
#endif