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LXXXI.

Unix, , . web-, , web-.

. Unix , fork(2), waitpid(2) signal(2), , Advanced Programming in the UNIX Environment, W. Richard Stevens (Addison-Wesley).

PHP . --enable-pcntl PHP, .

: -Unix (Windows).

. . man- signal(7) .

1.
SIGFPESIGCONT SIGKILL
SIGSTOPSIGUSR1SIGTSTP
SIGHUPSIGUSR2SIGTTIN
SIGINT SIGSEGVSIGTTOU
SIGQUITSIGPIPE SIGURG
SIGILLSIGALRMSIGXCPU
SIGTRAPSIGTERMSIGXFSZ
SIGABRT SIGSTKFLTSIGVTALRM
SIGIOTSIGCHLD SIGPROF
SIGBUSSIGCLDSIGWINCH
SIGPOLLSIGIOSIGPWR
SIGSYS   

/daemon .

1.
<?php

$pid = pcntl_fork();
if ($pid == -1) {
     die("could not fork"); 
} else if ($pid) {
     exit(); //  
} else {
     //  
}

//    
if (!posix_setsid()) {
    die("could not detach from terminal");
}

//   
pcntl_signal(SIGTERM, "sig_handler");
pcntl_signal(SIGHUP, "sig_handler");

//   ,  
while(1) {

    //   - 

}

function sig_handler($signo) {

     switch($signo) {
         case SIGTERM:
             //   
             exit;
             break;
         case SIGHUP:
             //   
             break;
         default:
             //    
     }

}

?>
pcntl_exec -
pcntl_fork -
pcntl_signal -
pcntl_waitpid -
pcntl_wexitstatus - return-
pcntl_wifexited - TRUE, -
pcntl_wifsignaled - TRUE, -
pcntl_wifstopped - TRUE,
pcntl_wstopsig - ,
pcntl_wtermsig - ,

pg_update pcntl_exec


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