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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:43:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:43:11 +0000 |
commit | fc22b3d6507c6745911b9dfcc68f1e665ae13dbc (patch) | |
tree | ce1e3bce06471410239a6f41282e328770aa404a /upstream/archlinux/man3p/atexit.3p | |
parent | Initial commit. (diff) | |
download | manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.tar.xz manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.zip |
Adding upstream version 4.22.0.upstream/4.22.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'upstream/archlinux/man3p/atexit.3p')
-rw-r--r-- | upstream/archlinux/man3p/atexit.3p | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/upstream/archlinux/man3p/atexit.3p b/upstream/archlinux/man3p/atexit.3p new file mode 100644 index 00000000..ec568bc4 --- /dev/null +++ b/upstream/archlinux/man3p/atexit.3p @@ -0,0 +1,133 @@ +'\" et +.TH ATEXIT "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.\" +.SH NAME +atexit +\(em register a function to run at process termination +.SH SYNOPSIS +.LP +.nf +#include <stdlib.h> +.P +int atexit(void (*\fIfunc\fP)(void)); +.fi +.SH DESCRIPTION +The functionality described on this reference page is aligned with the +ISO\ C standard. Any conflict between the requirements described here and the +ISO\ C standard is unintentional. This volume of POSIX.1\(hy2017 defers to the ISO\ C standard. +.P +The +\fIatexit\fR() +function shall register the function pointed to by +.IR func , +to be called without arguments at normal program termination. At normal +program termination, all functions registered by the +\fIatexit\fR() +function shall be called, in the reverse order of their registration, +except that a function is called after any previously registered +functions that had already been called at the time it was registered. +Normal termination occurs either by a call to +\fIexit\fR() +or a return from +\fImain\fR(). +.P +At least 32 functions can be registered with +\fIatexit\fR(). +.P +After a successful call to any of the +.IR exec +functions, any functions previously registered by +\fIatexit\fR() +shall no longer be registered. +.SH "RETURN VALUE" +Upon successful completion, +\fIatexit\fR() +shall return 0; otherwise, it shall return a non-zero value. +.SH ERRORS +No errors are defined. +.LP +.IR "The following sections are informative." +.SH EXAMPLES +None. +.SH "APPLICATION USAGE" +The functions registered by a call to +\fIatexit\fR() +must return to ensure that all registered functions are called. +.P +The application should call +\fIsysconf\fR() +to obtain the value of +{ATEXIT_MAX}, +the number of functions that can be registered. There is no way for an +application to tell how many functions have already been registered +with +\fIatexit\fR(). +.P +Since the behavior is undefined if the +\fIexit\fR() +function is called more than once, portable applications calling +\fIatexit\fR() +must ensure that the +\fIexit\fR() +function is not called at normal process termination when all functions +registered by the +\fIatexit\fR() +function are called. +.P +All functions registered by the +\fIatexit\fR() +function are called at normal process termination, which occurs by a +call to the +\fIexit\fR() +function or a return from +\fImain\fR() +or on the last thread termination, when the behavior is as if the +implementation called +\fIexit\fR() +with a zero argument at thread termination time. +.P +If, at normal process termination, a function registered by the +\fIatexit\fR() +function is called and a portable application needs to stop further +\fIexit\fR() +processing, it must call the +\fI_exit\fR() +function or the +\fI_Exit\fR() +function or one of the functions which cause abnormal process +termination. +.SH RATIONALE +None. +.SH "FUTURE DIRECTIONS" +None. +.SH "SEE ALSO" +.IR "\fIexec\fR\^", +.IR "\fIexit\fR\^(\|)", +.IR "\fIsysconf\fR\^(\|)" +.P +The Base Definitions volume of POSIX.1\(hy2017, +.IR "\fB<stdlib.h>\fP" +.\" +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1-2017, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 7, 2018 Edition, +Copyright (C) 2018 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. +In the event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . +.PP +Any typographical or formatting errors that appear +in this page are most likely +to have been introduced during the conversion of the source files to +man page format. To report such errors, see +https://www.kernel.org/doc/man-pages/reporting_bugs.html . |