OSX不支持未命名的POSIX信号灯.如果检查返回码，您将看到sem_init失败，并在这些行上出现错误.您需要使用命名信号量.

Unnamed POSIX semaphores are not supported on OSX. If you check your return codes you will see sem_init fail with an error along those lines. You need to use named semaphores.

使用sem_open代替sem_init.不要使用sem_destroy，而是使用sem_close和sem_unlink.

Use sem_open instead of sem_init. Don't use sem_destroy but rather sem_close and sem_unlink.

您会很高兴.