pause man page on DigitalUNIX

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pause(3)							      pause(3)

       pause - Suspends a process until it receives a signal

       #include <unistd.h>

       int pause(
	       void );

       Standard C Library (libc)

       Interfaces  documented on this reference page conform to industry stan‐
       dards as follows:

       pause():	 POSIX.1, XPG4, XPG4-UNIX

       Refer to the standards(5) reference page	 for  more  information	 about
       industry standards and associated tags.

       The  pause()  function suspends the calling process until it receives a
       signal whose action is either to execute a signal-catching function  or
       terminate  the process.	The signal must be one that is acknowledged by
       the calling process. The pause() function does not  affect  the	action
       taken when a signal is received.

       The  pause()  function  suspends	 the calling process by suspending the
       calling thread. Other threads in the process,  if  any,	are  not  sus‐

       When  the  received signal causes the calling process to terminate, the
       pause() function does not return.

       When the signal is  caught  by  the  calling  process  and  control  is
       returned	 from the signal-catching function, the calling thread resumes
       execution from the point of suspension.	At  that  point,  the  pause()
       function returns a value of -1 and sets errno to indicate the error.

       The pause() function sets errno to the specified values for the follow‐
       ing conditions: The signal has been caught by the calling  process  and
       control has been returned from the signal-catching function.

       Functions: kill(2), sigaction(2), sigvec(2), wait(2)

       Routines: alarm(3)

       Standards: standards(5)


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