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35 #include "wtf/ThreadIdentifierDataPthreads.h"
37 #include "wtf/Assertions.h"
42 // PTHREAD_KEYS_MAX might be not defined (e.g. in certain bionic versions), so explicitly define it here.
43 #ifndef PTHREAD_KEYS_MAX
44 #define PTHREAD_KEYS_MAX 1024
45 #endif // PTHREAD_KEYS_MAX
49 pthread_key_t ThreadIdentifierData::m_key = PTHREAD_KEYS_MAX;
51 void threadDidExit(ThreadIdentifier);
53 ThreadIdentifierData::~ThreadIdentifierData()
55 threadDidExit(m_identifier);
58 void ThreadIdentifierData::initializeOnce()
60 if (pthread_key_create(&m_key, destruct))
64 ThreadIdentifier ThreadIdentifierData::identifier()
66 ASSERT(m_key != PTHREAD_KEYS_MAX);
67 ThreadIdentifierData* threadIdentifierData = static_cast<ThreadIdentifierData*>(pthread_getspecific(m_key));
69 return threadIdentifierData ? threadIdentifierData->m_identifier : 0;
72 void ThreadIdentifierData::initialize(ThreadIdentifier id)
74 ASSERT(!identifier());
75 pthread_setspecific(m_key, new ThreadIdentifierData(id));
78 void ThreadIdentifierData::destruct(void* data)
83 ThreadIdentifierData* threadIdentifierData = static_cast<ThreadIdentifierData*>(data);
84 ASSERT(threadIdentifierData);
86 if (threadIdentifierData->m_isDestroyedOnce) {
87 delete threadIdentifierData;
91 threadIdentifierData->m_isDestroyedOnce = true;
92 // Re-setting the value for key causes another destruct() call after all other thread-specific destructors were called.
93 pthread_setspecific(m_key, threadIdentifierData);
98 #endif // USE(PTHREADS)