Threads terminating when a signal is generated

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sigpause

sigpause(3C)															      sigpause(3C)

NAME

       sigpause - signal management

SYNOPSIS

   Obsolescent
DESCRIPTION

       The function, along with the and functions provide simplified signal management.

       The  function  removes  sig from the calling thread's signal mask and suspends the calling thread until a signal is received.  The function
       restores the thread's signal mask to its original state before returning.

RETURN VALUE

       The function suspends execution of the thread until a signal is received, whereupon it shall return and set to

ERRORS

	      [EINVAL]		  sig is not a valid signal number.

WARNINGS

       The compiler option must be set to use sigpause().  The use of the function without the option is unspecified.

       should not be used in conjunction with signal(2) and sigspace(2).

OBSOLESCENT FUNCTION

       will be obsoleted in the near future.  The obsolescent function blocks signals according to the value of mask, then atomically waits for an
       unmasked  signal to arrive.  On return, restores the current signal mask to the value that existed before the call.  When no signals are to
       be blocked, a value of is used for mask.

       terminates when it is interrupted by a signal.  When terminates, it returns -l and sets to

       The obsolescent function is typically used in conjunction with the obsoleted function.

   Threads Considerations
       Since blocked signal masks are maintained at the thread level, the obsolescent function modifies only the calling thread's  blocked  signal
       mask.  suspends only the calling thread until it receives a signal.

       If other threads in the process do not block the signal, the signal may be delivered to another thread in the process and the thread in may
       continue waiting.  For this reason, the use of sigwait(2) is recommended instead of for multi-threaded applications.

       For more information regarding signals and threads, refer to signal(5).

   LP64 Programs
       This obsolescent accepts a long (64 bit) value.	However, as for ILP32 programs, supports signals numbered 1 through 32.  The upper 32 bits
       of the mask argument are ignored.

   Author
       was developed by the University of California, Berkeley.

SEE ALSO

       kill(1), kill(2), pause(2), signal(2), wait(2), abort(3C), setjmp(3C), sighold(3C), sigignore(3C), sigrelse(3C), sigset(3C), signal(5).

STANDARDS CONFORMANCE

																      sigpause(3C)

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