Public Member Functions | |
__construct ($numProcs, $flags=0) | |
start () | |
Start the child processes. | |
Public Attributes | |
$children = array() | |
$termReceived = false | |
$flags = 0 | |
$procsToStart = 0 | |
const | RESTART_ON_ERROR = 1 |
Pass this flag to __construct() to cause the class to automatically restart workers that exit with non-zero exit status or a signal such as SIGSEGV. | |
Static Public Attributes | |
static | $restartableSignals |
Protected Member Functions | |
prepareEnvironment () | |
forkWorkers ($numProcs) | |
Fork a number of worker processes. | |
initChild () | |
handleTermSignal ($signal) |
Currently just does forking and process control, but it could easily be extended to provide IPC and job dispatch.
This class requires the posix and pcntl extensions.
Definition at line 12 of file ForkController.php.
ForkController::__construct | ( | $ | numProcs, | |
$ | flags = 0 | |||
) |
ForkController::forkWorkers | ( | $ | numProcs | ) | [protected] |
Fork a number of worker processes.
Definition at line 128 of file ForkController.php.
References $i, $wgCaches, $wgMainCacheType, $wgMemc, initChild(), and prepareEnvironment().
Referenced by start().
ForkController::handleTermSignal | ( | $ | signal | ) | [protected] |
Definition at line 161 of file ForkController.php.
ForkController::initChild | ( | ) | [protected] |
Definition at line 154 of file ForkController.php.
References $wgMainCacheType, $wgMemc, and wfGetCache().
Referenced by forkWorkers().
ForkController::prepareEnvironment | ( | ) | [protected] |
Definition at line 117 of file ForkController.php.
References $wgCaches, $wgMemc, and wfGetLBFactory().
Referenced by forkWorkers().
ForkController::start | ( | ) |
Start the child processes.
This should only be called from the command line. It should be called as early as possible during execution.
This will return 'child' in the child processes. In the parent process, it will run until all the child processes exit or a TERM signal is received. It will then return 'done'.
Definition at line 53 of file ForkController.php.
References forkWorkers().
ForkController::$children = array() |
Definition at line 13 of file ForkController.php.
ForkController::$flags = 0 |
ForkController::$procsToStart = 0 |
Definition at line 15 of file ForkController.php.
ForkController::$restartableSignals [static] |
Initial value:
array( SIGFPE, SIGILL, SIGSEGV, SIGBUS, SIGABRT, SIGSYS, SIGPIPE, SIGXCPU, SIGXFSZ, )
Definition at line 17 of file ForkController.php.
ForkController::$termReceived = false |
Definition at line 14 of file ForkController.php.
const ForkController::RESTART_ON_ERROR = 1 |
Pass this flag to __construct() to cause the class to automatically restart workers that exit with non-zero exit status or a signal such as SIGSEGV.
Definition at line 33 of file ForkController.php.