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OpenSolaris 2009.06 - man page for pause (opensolaris section 2)

pause(2)							   System Calls 							  pause(2)

NAME
pause - suspend process until signal
SYNOPSIS
#include <unistd.h> int pause(void);
DESCRIPTION
The pause() function suspends the calling process until it receives a signal. The signal must be one that is not currently set to be ignored by the calling process. If the signal causes termination of the calling process, pause() does not return. If the signal is caught by the calling process and control is returned from the signal-catching function (see signal(3C)), the calling process resumes execution from the point of suspension.
RETURN VALUES
Since pause() suspends thread execution indefinitely unless interrupted by a signal, there is no successful completion return value. If interrupted, it returns -1 and sets errno to indicate the error.
ERRORS
The pause() function will fail if: EINTR A signal is caught by the calling process and control is returned from the signal-catching function.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+
SEE ALSO
alarm(2), kill(2), signal(3C), wait(3C), attributes(5), standards(5) SunOS 5.11 28 Dec 1996 pause(2)