1 .\" Copyright (c) 2005 Michael Kerrisk
2 .\" based on earlier work by faith@cs.unc.edu and
3 .\" Mike Battersby <mib@deakin.edu.au>
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27 .\" 2005-09-15, mtk, Created new page by splitting off from sigaction.2
29 .TH SIGSUSPEND 2 2013-04-19 "Linux" "Linux Programmer's Manual"
31 sigsuspend \- wait for a signal
33 .B #include <signal.h>
35 .BI "int sigsuspend(const sigset_t *" mask );
38 Feature Test Macro Requirements for glibc (see
39 .BR feature_test_macros (7)):
44 _POSIX_C_SOURCE\ >=\ 1 || _XOPEN_SOURCE || _POSIX_SOURCE
48 temporarily replaces the signal mask of the calling process with the
51 and then suspends the process until delivery of a signal whose
52 action is to invoke a signal handler or to terminate a process.
54 If the signal terminates the process, then
57 If the signal is caught, then
59 returns after the signal handler returns,
60 and the signal mask is restored to the state before the call to
63 It is not possible to block
67 specifying these signals in
69 has no effect on the process's signal mask.
72 always returns \-1, with
74 set to indicate the error (normally,
80 points to memory which is not a valid part of the process address space.
83 The call was interrupted by a signal.
90 is used in conjunction with
92 in order to prevent delivery of a signal during the execution of a
93 critical code section.
94 The caller first blocks the signals with
96 When the critical code has completed, the caller then waits for the
99 with the signal mask that was returned by
107 for details on manipulating signal sets.
119 This page is part of release 3.78 of the Linux
122 A description of the project,
123 information about reporting bugs,
124 and the latest version of this page,
126 \%http://www.kernel.org/doc/man\-pages/.