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#include <pthread.h>

pid_t GetCurrentThreadId(){
    pid_t tid = 0;
#if defined(__linux__)
    tid = syscall(SYS_gettid);
#elif defined(__APPLE__) && defined(__MACH__)
    tid = syscall(SYS_thread_selfid);
    uint64_t tid64;
    pthread_threadid_np(NULL, &tid64);
    tid = (pid_t)tid64;
#endif
    return tid;
}