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71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
#include "Thread/PlatformThread.h"
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#include <unistd.h> // getpid
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#include <pthread.h> // pthread
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#include <sys/syscall.h>
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using namespace zz;
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int OSThread::GetCurrentProcessId() {
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return static_cast<int>(getpid());
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}
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int OSThread::GetCurrentThreadId() {
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#if defined(__APPLE__)
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return static_cast<int>(pthread_mach_thread_np(pthread_self()));
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#elif defined(__ANDROID__)
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return static_cast<int>(gettid());
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#elif defined(__linux__)
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return static_cast<int>(syscall(__NR_gettid));
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#else
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return static_cast<int>(reinterpret_cast<intptr_t>(pthread_self()));
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#endif
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}
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static OSThread::LocalStorageKey PthreadKeyToLocalKey(pthread_key_t pthread_key) {
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#if defined(__cygwin__)
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// We need to cast pthread_key_t to OSThread::LocalStorageKey in two steps
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// because pthread_key_t is a pointer type on Cygwin. This will probably not
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// work on 64-bit platforms, but Cygwin doesn't support 64-bit anyway.
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assert(sizeof(OSThread::LocalStorageKey) == sizeof(pthread_key_t));
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intptr_t ptr_key = reinterpret_cast<intptr_t>(pthread_key);
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return static_cast<OSThread::LocalStorageKey>(ptr_key);
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#else
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return static_cast<OSThread::LocalStorageKey>(pthread_key);
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#endif
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}
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static pthread_key_t LocalKeyToPthreadKey(OSThread::LocalStorageKey local_key) {
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#if defined(__cygwin__)
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assert(sizeof(OSThread::LocalStorageKey) == sizeof(pthread_key_t));
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intptr_t ptr_key = static_cast<intptr_t>(local_key);
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return reinterpret_cast<pthread_key_t>(ptr_key);
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#else
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return static_cast<pthread_key_t>(local_key);
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#endif
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}
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OSThread::LocalStorageKey OSThread::CreateThreadLocalKey() {
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pthread_key_t key;
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int result = pthread_key_create(&key, nullptr);
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DCHECK_EQ(0, result);
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LocalStorageKey local_key = PthreadKeyToLocalKey(key);
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return local_key;
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}
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void OSThread::DeleteThreadLocalKey(LocalStorageKey key) {
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pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
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int result = pthread_key_delete(pthread_key);
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DCHECK_EQ(0, result);
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}
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void *OSThread::GetThreadLocal(LocalStorageKey key) {
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pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
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return pthread_getspecific(pthread_key);
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}
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void OSThread::SetThreadLocal(LocalStorageKey key, void *value) {
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pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
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int result = pthread_setspecific(pthread_key, value);
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DCHECK_EQ(0, result);
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}
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