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1 /*
2  * Copyright 2013 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "SkTLS.h"
9 
10 #include <pthread.h>
11 
12 static pthread_key_t gSkTLSKey;
13 static pthread_once_t gSkTLSKey_Once = PTHREAD_ONCE_INIT;
14 
sk_tls_make_key()15 static void sk_tls_make_key() {
16     (void)pthread_key_create(&gSkTLSKey, SkTLS::Destructor);
17 }
18 
PlatformGetSpecific(bool forceCreateTheSlot)19 void* SkTLS::PlatformGetSpecific(bool forceCreateTheSlot) {
20     // should we use forceCreateTheSlot to potentially skip calling pthread_once
21     // and just return nullptr if we've never been called with
22     // forceCreateTheSlot==true ?
23 
24     (void)pthread_once(&gSkTLSKey_Once, sk_tls_make_key);
25     return pthread_getspecific(gSkTLSKey);
26 }
27 
PlatformSetSpecific(void * ptr)28 void SkTLS::PlatformSetSpecific(void* ptr) {
29     (void)pthread_setspecific(gSkTLSKey, ptr);
30 }
31