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Full Discussion: Defining Custom Signal
Top Forums Programming Defining Custom Signal Post 302338376 by jim mcnamara on Monday 27th of July 2009 05:39:43 PM
Old 07-27-2009
SIGUSR1 and SIGUSR2 and "custom" signals. Nothing else but your code will raise or send those signals to your app.

SIGHUP is traditionally used to cause a daemon to close the logfiles it has open, and reread the initfile, if there is one.
 

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pthread_kill(3) 					     Library Functions Manual						   pthread_kill(3)

NAME
pthread_kill - Delivers a signal to a specified thread. (This routine is available only on a UNIX system.) LIBRARY
DECthreads POSIX 1003.1c Library (libpthread.so) SYNOPSIS
#include <pthread.h> #include <signal.h> int pthread_kill( pthread_t thread, int sig); STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: IEEE Std 1003.1c-1995, POSIX System Application Program Interface PARAMETERS
Thread to receive a signal request. A signal request. DESCRIPTION
This routine sends a signal to the specified target thread thread. Any signal defined to stop, continue, or terminate will stop or termi- nate the process, even though it can be handled by the thread. For example, SIGTERM terminates all threads in the process, even though it can be handled by the target thread. Specifying a sig argument of zero (0) causes this routine to validate the thread argument but not to deliver any signal. The name of the "kill" routine is sometimes misleading, because many signals do not terminate a thread. The various signals are as follows: SIGHUP, SIGPIPE, SIGTTIN SIGINT, SIGALRM, SIGTTOU SIGQUIT, SIGTERM, SIGIO SIGTRAP, SIGUSR1, SIGXCPU SIGABRT, SIGSYS, SIGXFSZ SIGEMT, SIGURG, SIGVTALRM SIGFPE, SIGSTOP, SIGPROF SIGKILL, SIGTSTP, SIGINFO SIGBUS, SIGCONT, SIGUSR1 SIGSEGV, SIGCHLD, SIGUSR2 If this routine does not execute successfully, no signal is sent. RETURN VALUES
If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows: Successful completion. The value of sig is invalid or unsupported signal value. The value of thread does not specify an existing thread. ERRORS
None RELATED INFORMATION
Manuals: Guide to DECthreads and Programmer's Guide delim off pthread_kill(3)
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