gsignal man page on SmartOS

Man page or keyword search:  
man Server   16655 pages
apropos Keyword Search (all sections)
Output format
SmartOS logo
[printable version]

SSIGNAL(3C)							   SSIGNAL(3C)

NAME
       ssignal, gsignal - software signals

SYNOPSIS
       #include <signal.h>

       void(*ssignal (int sig, int (*action)(int)))(int);

       int gsignal(int sig);

DESCRIPTION
       The  ssignal()  and  gsignal()  functions implement a software facility
       similar to signal(3C). This facility is made  available	to  users  for
       their own purposes.

   ssignal()
       Software	 signals  made available to users are associated with integers
       in the inclusive range 1 through 17. A call to ssignal()	 associates  a
       procedure,  action,  with the software signal sig; the software signal,
       sig, is raised by a call to gsignal(). Raising a software signal causes
       the action established for that signal to be taken.

       The  first  argument  to	 ssignal() is a number identifying the type of
       signal for which an action is to be established.	 The  second  argument
       defines	the  action;  it is either the name of a (user-defined) action
       function or one of the manifest constants SIG_DFL (default) or  SIG_IGN
       (ignore).  The  ssignal() function returns the action previously estab‐
       lished for that signal type; if no action has been established  or  the
       signal number is illegal, ssignal() returns SIG_DFL.

   gsignal()
       The gsignal() raises the signal identified by its argument, sig.

       If an action function has been established for sig, then that action is
       reset to SIG_DFL and the action function is entered with argument  sig.
       The  gsignal()  function returns the value returned to it by the action
       function.

       If the action for sig is SIG_IGN, gsignal() returns  the	 value	1  and
       takes no other action.

       If  the	action	for  sig is SIG_DFL, gsignal() returns the value 0 and
       takes no other action.

       If sig has an illegal value or no action was ever  specified  for  sig,
       gsignal() returns the value 0 and takes no other action.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌───────────────┬─────────────────┐
       │ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
       ├───────────────┼─────────────────┤
       │MT-Level       │ Unsafe		 │
       └───────────────┴─────────────────┘

SEE ALSO
       raise(3C), signal(3C), attributes(5)

				 Dec 29, 1996			   SSIGNAL(3C)
[top]

List of man pages available for SmartOS

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net