ESRCH — You've specified an invalid process id or process group.
您已指定无效的进程ID或进程组。
Sem_perm.cgid and sem_perm.gid are set to the effective group id of the calling process.
sem_perm . cgid和sem_perm . gid被设置为调用进程的有效组id。
Sem_perm.cgid and sem_perm.gid are set to the effective group id of the calling process.
sem_perm . cgid和sem_perm . gid被设置为调用进程的有效组id。
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