lib/libsys/wait.2

69 information is available for a child process
76 area contains information about the process that reported a status change
97 All of the desired process statuses to be waited on must be explicitly
132 This allows the calling process to collect resource usage statistics
133 from both its own child process as well as from its grand children.
148 signal delivered when the process changed state.
159 identifiers in addition to process IDs and process group IDs.
169 wait for the child process with a process ID equal to
179 wait for the child process with a process group ID equal to
189 wait for any child process and the
205 wait for any child process in the same process group as the caller.
225 If the child process started its own session,
226 its session ID will be the same as its process ID.
227 Otherwise the session ID of a child process will match the caller's session ID.
244 is -1, the call waits for any child process.
249 the call waits for any child process in the process group of the caller.
253 is greater than zero, the call waits for the process with process ID
258 is less than -1, the call waits for any process whose process group ID
277 can also cause a process to be continued, when a
327 Keep the process whose status is returned in a waitable state.
328 The process may be waited for again after this call completes.
353 process and all its children is returned.
358 by the terminated process and the resources used by all its children.
370 field set to the process ID of the process reporting status.
371 For the exited process, the
403 process id
450 The following macros may be used to test the current status of the process.
456 True if the process has not terminated, and
462 True if the process terminated normally by a call to
467 True if the process terminated due to receipt of a signal.
469 True if the process has not terminated, but has stopped and can be restarted.
473 or if the child process is being traced (see
478 produce the remaining status information about the child process:
493 that caused the termination of the process.
498 of the process was accompanied by the creation of a core file
499 containing an image of the process when the signal was received.
504 that caused the process to stop.
512 If a parent process terminates without
515 of the exiting process as the parent, see
518 If no specific reaper was assigned, the process with ID 1, the init process,
534 signal for each child process whose
537 returns because the status of a child process is available, the pending
538 SIGCHLD signal associated with the process ID of the child process will
548 returns because the status of a child process is available, the pending
550 signal will be cleared unless another status of the child process
556 or terminated child process, the process ID of the child
557 is returned to the calling process.
570 or terminated child process, the process ID of the child
571 is returned to the calling process.
608 must be checked against zero to determine if a process reported status.
612 family of functions will only return a child process created with
614 if the calling process is not in
618 has been explicitly given the child's process ID.
626 The calling process has no existing unwaited-for
629 No status from the terminated child process is available
630 because the calling process has asked the system to discard
642 (May not be detected before exit of a child process.)