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diff --git a/man2/_exit.2 b/man2/_exit.2 deleted file mode 100644 index ea3ca63..0000000 --- a/man2/_exit.2 +++ /dev/null @@ -1,138 +0,0 @@ -.\" This manpage is Copyright (C) 1992 Drew Eckhardt; -.\" and Copyright (C) 1993 Michael Haardt, Ian Jackson. -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.\" Modified Wed Jul 21 23:02:38 1993 by Rik Faith <faith@cs.unc.edu> -.\" Modified 2001-11-17, aeb -.\" -.TH _exit 2 2023-10-31 "Linux man-pages 6.7" -.SH NAME -_exit, _Exit \- terminate the calling process -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <unistd.h> -.P -.BI "[[noreturn]] void _exit(int " status ); -.P -.B #include <stdlib.h> -.P -.BI "[[noreturn]] void _Exit(int " status ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR _Exit (): -.nf - _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L -.fi -.SH DESCRIPTION -.BR _exit () -terminates the calling process "immediately". -Any open file descriptors belonging to the process are closed. -Any children of the process are inherited by -.BR init (1) -(or by the nearest "subreaper" process as defined through the use of the -.BR prctl (2) -.B PR_SET_CHILD_SUBREAPER -operation). -The process's parent is sent a -.B SIGCHLD -signal. -.P -The value -.I "status & 0xFF" -is returned to the parent process as the process's exit status, and -can be collected by the parent using one of the -.BR wait (2) -family of calls. -.P -The function -.BR _Exit () -is equivalent to -.BR _exit (). -.SH RETURN VALUE -These functions do not return. -.SH STANDARDS -.TP -.BR _exit () -POSIX.1-2008. -.TP -.BR _Exit () -C11, POSIX.1-2008. -.SH HISTORY -POSIX.1-2001, SVr4, 4.3BSD. -.P -.BR _Exit () -was introduced by C99. -.SH NOTES -For a discussion on the effects of an exit, the transmission of -exit status, zombie processes, signals sent, and so on, see -.BR exit (3). -.P -The function -.BR _exit () -is like -.BR exit (3), -but does not call any -functions registered with -.BR atexit (3) -or -.BR on_exit (3). -Open -.BR stdio (3) -streams are not flushed. -On the other hand, -.BR _exit () -does close open file descriptors, and this may cause an unknown delay, -waiting for pending output to finish. -If the delay is undesired, -it may be useful to call functions like -.BR tcflush (3) -before calling -.BR _exit (). -Whether any pending I/O is canceled, and which pending I/O may be -canceled upon -.BR _exit (), -is implementation-dependent. -.SS C library/kernel differences -The text above in DESCRIPTION describes the traditional effect of -.BR _exit (), -which is to terminate a process, -and these are the semantics specified by POSIX.1 and implemented -by the C library wrapper function. -On modern systems, this means termination of all threads in the process. -.P -By contrast with the C library wrapper function, the raw Linux -.BR _exit () -system call terminates only the calling thread, and actions such as -reparenting child processes or sending -.B SIGCHLD -to the parent process are performed only if this is -the last thread in the thread group. -.\" _exit() is used by pthread_exit() to terminate the calling thread -.P -Up to glibc 2.3, the -.BR _exit () -wrapper function invoked the kernel system call of the same name. -Since glibc 2.3, the wrapper function invokes -.BR exit_group (2), -in order to terminate all of the threads in a process. -.SH SEE ALSO -.BR execve (2), -.BR exit_group (2), -.BR fork (2), -.BR kill (2), -.BR wait (2), -.BR wait4 (2), -.BR waitpid (2), -.BR atexit (3), -.BR exit (3), -.BR on_exit (3), -.BR termios (3) |