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use flock when write bitcoin list file

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kevin
2015-03-12 16:34:16 +08:00
parent 617874145b
commit 62468c81bf
1 changed files with 21 additions and 3 deletions
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scripts/generate.php
+21 -3
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@@ -67,11 +67,29 @@ function dump_for_ss_server($exist_txs) {
$address[] = $_tx['address'];
}
$str = implode("\n", $address)."\n";
LOGI("try dump ".count($address)." address to ss_server_file");
LOGI("dump ".count($address)." address to ss_server_file");
if (file_put_contents($_CFG['ss_server_file'], $str) == false) {
LOGI("write file fail: {$_CFG['ss_server_file']}");
$exist = file_exists($_CFG['ss_server_file']);
$fp = fopen($_CFG['ss_server_file'], $exist ? "r+" : "w");
if (!$fp) {
LOGI("write file failure: {$_CFG['ss_server_file']}");
return;
}
// use flock when write file
for ($i = 0; $i < 3; $i++) { // try 3 times if need
if (!flock($fp, LOCK_EX | LOCK_NB)) {
sleep(3);continue;
}
ftruncate($fp, 0);
fwrite($fp, $str);
fflush($fp);
flock($fp, LOCK_UN);
LOGI("write file success: {$_CFG['ss_server_file']}");
break;
}
fclose($fp);
}