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Properly daemonized 2-way Twitter bridge code

This commit is contained in:
Zach Copley 2009-05-07 00:25:15 -07:00
parent b291cb8a1b
commit 48226e0c48
1 changed files with 480 additions and 449 deletions
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85
scripts/statusfetcher.php
View File

@ -28,25 +28,37 @@ define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
define('LACONICA', true);
// Tune number of processes and how often to poll Twitter
define('MAXCHILDREN', 5);
define('POLL_INTERVAL', 60 * 10); // in seconds
// XXX: Should these things be in config.php?
define('MAXCHILDREN', 2);
define('POLL_INTERVAL', 60); // in seconds
// Uncomment this to get useful console output
define('SCRIPT_DEBUG', true);
require_once(INSTALLDIR . '/lib/common.php');
require_once(INSTALLDIR . '/lib/daemon.php');
$children = array();
class TwitterStatusFetcher extends Daemon
{
private $children = array();
function name()
{
return 'twitterstatusfetcher';
}
function run()
{
do {
$flinks = refreshFlinks();
$flinks = $this->refreshFlinks();
foreach ($flinks as $f){
// We have to disconnect from the DB before forking so
// each process will open its own connection and
// avoid stomping on each other
// each sub-process will open its own connection and
// avoid stomping on the others
$conn = &$f->getDatabaseConnection();
$conn->disconnect();
@ -60,33 +72,37 @@ do {
if ($pid) {
// Parent
common_debug("Parent: forked new status fetcher process " . $pid);
if (defined('SCRIPT_DEBUG')) {
print "Parent: forked " . $pid . "\n";
print "Parent: forked fetcher process " . $pid . "\n";
}
$children[] = $pid;
$this->children[] = $pid;
} else {
// Child
getTimeline($f, $child_db_name);
$this->getTimeline($f);
exit();
}
// Remove child from ps list as it finishes
while(($c = pcntl_wait($status, WNOHANG OR WUNTRACED)) > 0) {
common_debug("Child $c finished.");
if (defined('SCRIPT_DEBUG')) {
print "Child $c finished.\n";
}
remove_ps($children, $c);
$this->remove_ps($this->children, $c);
}
// Wait if we have too many kids
if (sizeof($children) > MAXCHILDREN) {
// Wait! We have too many damn kids.
if (sizeof($this->children) > MAXCHILDREN) {
common_debug('Too many children. Waiting...');
if (defined('SCRIPT_DEBUG')) {
print "Too many children. Waiting...\n";
@ -94,11 +110,13 @@ do {
if (($c = pcntl_wait($status, WUNTRACED)) > 0){
common_debug("Finished waiting for $c");
if (defined('SCRIPT_DEBUG')) {
print "Finished waiting for $c\n";
}
remove_ps($children, $c);
$this->remove_ps($this->children, $c);
}
}
}
@ -106,11 +124,13 @@ do {
// Remove all children from the process list before restarting
while(($c = pcntl_wait($status, WUNTRACED)) > 0) {
common_debug("Child $c finished.");
if (defined('SCRIPT_DEBUG')) {
print "Child $c finished.\n";
}
remove_ps($children, $c);
$this->remove_ps($this->children, $c);
}
// Rest for a bit before we fetch more statuses
@ -124,7 +144,7 @@ do {
sleep(POLL_INTERVAL);
} while (true);
}
function refreshFlinks() {
@ -215,7 +235,7 @@ function getTimeline($flink)
continue;
}
saveStatus($status, $flink);
$this->saveStatus($status, $flink);
}
// Okay, record the time we synced with Twitter for posterity
@ -226,7 +246,7 @@ function getTimeline($flink)
function saveStatus($status, $flink)
{
$id = ensureProfile($status->user);
$id = $this->ensureProfile($status->user);
$profile = Profile::staticGet($id);
if (!$profile) {
@ -310,7 +330,7 @@ function ensureProfile($user)
common_debug("Profile for $profile->nickname found.");
// Check to see if the user's Avatar has changed
checkAvatar($user, $profile);
$this->checkAvatar($user, $profile);
return $profile->id;
} else {
@ -370,7 +390,7 @@ function ensureProfile($user)
$profile->query("COMMIT");
saveAvatars($user, $id);
$this->saveAvatars($user, $id);
return $id;
}
@ -399,7 +419,7 @@ function checkAvatar($user, $profile)
$img_root = substr($path_parts['basename'], 0, -11);
$ext = $path_parts['extension'];
$mediatype = getMediatype($ext);
$mediatype = $this->getMediatype($ext);
foreach (array('mini', 'normal', 'bigger') as $size) {
$url = $path_parts['dirname'] . '/' .
@ -407,8 +427,8 @@ function checkAvatar($user, $profile)
$filename = 'Twitter_' . $user->id . '_' .
$img_root . "_$size.$ext";
if (fetchAvatar($url, $filename)) {
updateAvatar($profile->id, $size, $mediatype, $filename);
if ($this->fetchAvatar($url, $filename)) {
$this->updateAvatar($profile->id, $size, $mediatype, $filename);
}
}
}
@ -440,7 +460,7 @@ function saveAvatars($user, $id)
$ext = $path_parts['extension'];
$end = strlen('_normal' . $ext);
$img_root = substr($path_parts['basename'], 0, -($end+1));
$mediatype = getMediatype($ext);
$mediatype = $this->getMediatype($ext);
foreach (array('mini', 'normal', 'bigger') as $size) {
$url = $path_parts['dirname'] . '/' .
@ -448,8 +468,8 @@ function saveAvatars($user, $id)
$filename = 'Twitter_' . $user->id . '_' .
$img_root . "_$size.$ext";
if (fetchAvatar($url, $filename)) {
newAvatar($id, $size, $mediatype, $filename);
if ($this->fetchAvatar($url, $filename)) {
$this->newAvatar($id, $size, $mediatype, $filename);
} else {
common_log(LOG_WARNING, "Problem fetching Avatar: $url", __FILE__);
if (defined('SCRIPT_DEBUG')) {
@ -485,7 +505,7 @@ function updateAvatar($profile_id, $size, $mediatype, $filename) {
$avatar->delete();
}
newAvatar($profile->id, $size, $mediatype, $filename);
$this->newAvatar($profile->id, $size, $mediatype, $filename);
}
function newAvatar($profile_id, $size, $mediatype, $filename)
@ -577,3 +597,14 @@ function fetchAvatar($url, $filename)
return $result;
}
}
ini_set("max_execution_time", "0");
ini_set("max_input_time", "0");
set_time_limit(0);
mb_internal_encoding('UTF-8');
declare(ticks = 1);
$fetcher = new TwitterStatusFetcher();
$fetcher->runOnce();