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wait4(2) -- wait for child process to change state
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The wait3() and wait4() functions allow the calling process to obtain various status information for a caller's child process based on the options specified. If status information is available for two or more child processes, the order of which process to report status on is not defined. The wait4() function is similar to wait3(), except that wait4() waits for a specific child as indicated by the... |
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