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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 _v_o_l_a_t_i_l_e
__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 is interested in the SIGCHLD signal, it is notified of the
calling process's termination and the _s_t_a_t_u_s area is set as defined
by wait(2).
oo The parent processID 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. Any
stopped children are restarted with a hangup signal (SIGHUP).
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), sigvec(2), wait(2), exit(3)
HHIISSTTOORRYY
An eexxiitt function call appeared in Version 6 AT&T UNIX.
4th Berkeley Distribution July 25, 1991 1