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- EXIT(2) UNIX Programmer's Manual EXIT(2)
-
- NNAAMMEE
- __eexxiitt - terminate the calling process
-
- SSYYNNOOPPSSIISS
- ##iinncclluuddee <<uunniissttdd..hh>>
-
- _v_o_i_d
- __eexxiitt(_i_n_t _s_t_a_t_u_s)
-
- DDEESSCCRRIIPPTTIIOONN
- The __eexxiitt() function terminates a process with the following conse-
- quences:
-
- ++oo All of the descriptors open in the calling process are closed. This
- may entail delays, for example, waiting for output to drain; a pro-
- cess in this state may not be killed, as it is already dying.
-
- ++oo If the parent process of the calling process has an outstanding wait
- call or catches the SIGCHLD signal, it is notified of the calling
- process's termination and the _s_t_a_t_u_s is set as defined by wait(2).
-
- ++oo The parent process-ID of all of the calling process's existing child
- processes are set to 1; the initialization process (see the DEFINI-
- TIONS section of intro(2)) inherits each of these processes.
-
- ++oo If the termination of the process causes any process group to become
- orphaned (usually because the parents of all members of the group
- have now exited; see ``orphaned process group'' in intro(2)), and if
- any member of the orphaned group is stopped, the SIGHUP signal and
- the SIGCONT signal are sent to all members of the newly-orphaned pro-
- cess group.
-
- ++oo If the process is a controlling process (see intro(2)), the SIGHUP
- signal is sent to the foreground process group of the controlling
- terminal, and all current access to the controlling terminal is re-
- voked.
-
- Most C programs call the library routine exit(3), which flushes buffers,
- closes streams, unlinks temporary files, etc., before calling __eexxiitt().
-
- RREETTUURRNN VVAALLUUEE
- __eexxiitt() can never return.
-
- SSEEEE AALLSSOO
- fork(2), sigaction(2), wait(2), exit(3)
-
- SSTTAANNDDAARRDDSS
- The __eexxiitt function is defined by IEEE Std1003.1-1988 (``POSIX'').
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- 4th Berkeley Distribution June 4, 1993 1
-