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Annotation of cci/usr/src/man/man2/exit.2, revision 1.1

1.1     ! root        1: .TH EXIT 2 
        !             2: .SH NAME
        !             3: exit, _exit \- terminate process
        !             4: .SH SYNOPSIS
        !             5: .B void exit (status)
        !             6: .br
        !             7: .B int status;
        !             8: .br
        !             9: .B void _exit (status)
        !            10: .br
        !            11: .B int status;
        !            12: .SH DESCRIPTION
        !            13: .I Exit\^
        !            14: terminates the calling process with the following consequences:
        !            15: .IP
        !            16: All of the file descriptors open in the calling process are closed.
        !            17: .IP
        !            18: If the parent process of the calling process is executing a
        !            19: .IR wait ,
        !            20: it is notified of the calling process's
        !            21: termination and the low order eight bits (i.e., bits 0377) of
        !            22: .I status\^
        !            23: are made available to it; see
        !            24: .IR wait (2).
        !            25: .IP
        !            26: If the parent process of the calling process is not executing a
        !            27: .IR wait ,
        !            28: the calling process is transformed into a zombie process.
        !            29: A
        !            30: .I "zombie process\^"
        !            31: is a process that only occupies a slot in the process table.
        !            32: It has no other space allocated either in user or kernel space.
        !            33: The process table slot that it occupies is partially overlaid with
        !            34: time accounting information
        !            35: (see
        !            36: .BR <sys/proc.h> )
        !            37: to be used by
        !            38: .IR times.
        !            39: .IP
        !            40: The parent process
        !            41: .SM ID
        !            42: of all of the calling process's existing
        !            43: child processes  and zombie processes is set to 1.
        !            44: This means the initialization process (see
        !            45: .IR intro (2))
        !            46: inherits each of these processes.
        !            47: .IP
        !            48: Each attached shared memory segment is detached and the value of
        !            49: .B shm_nattach
        !            50: in the data structure associated with its shared memory identifier
        !            51: is decremented by 1.
        !            52: .IP
        !            53: For each semaphore for which the calling process has set a semadj value (see
        !            54: .IR semop (2)),
        !            55: that semadj value is added to the semval of the specified semaphore.
        !            56: .IP
        !            57: If the process has a process, text, or data lock, an
        !            58: .I unlock\^
        !            59: is performed (see
        !            60: .IR plock (2)).
        !            61: .IP
        !            62: An accounting record is written on the accounting file if the system's 
        !            63: accounting routine is enabled; see
        !            64: .IR acct\^ (2).
        !            65: .PP
        !            66: The C function
        !            67: .I exit\^
        !            68: may cause cleanup actions before the process exits.
        !            69: The function
        !            70: .I _exit\^
        !            71: circumvents all cleanup.
        !            72: .SH NOTES
        !            73: This manual page replaces the 4.2BSD manual page.
        !            74: .SH "SEE ALSO"
        !            75: acct(2), intro(2), plock(2), semop(2), signal(2), wait(2).
        !            76: .\"    @(#)exit.2      6.2 of 9/6/83

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