12-02-2011
Quote:
Originally Posted by
achenle
Look up "async signal safe"
Hint: pthread_join() isn't "async signal safe".
Why "signal safety" may change something? Signals are blocked, when signal action called.
Ok, I've found list of async-signal-safe functions. I've replaced pthread_join by sleep(3) and system() by sleep(2) - nothing changed - I'm getting deadlock ( sleep() is async-signal-safe function ) .
Last edited by DendyGamer; 12-02-2011 at 12:06 PM..
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LEARN ABOUT OSF1
pthread_kill
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
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pthread_kill(3)