| Server IP : 127.0.0.2 / Your IP : 18.217.119.115 Web Server : Apache/2.4.18 (Ubuntu) System : User : www-data ( ) PHP Version : 7.0.33-0ubuntu0.16.04.16 Disable Function : disk_free_space,disk_total_space,diskfreespace,dl,exec,fpaththru,getmyuid,getmypid,highlight_file,ignore_user_abord,leak,listen,link,opcache_get_configuration,opcache_get_status,passthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,php_uname,phpinfo,posix_ctermid,posix_getcwd,posix_getegid,posix_geteuid,posix_getgid,posix_getgrgid,posix_getgrnam,posix_getgroups,posix_getlogin,posix_getpgid,posix_getpgrp,posix_getpid,posix,_getppid,posix_getpwnam,posix_getpwuid,posix_getrlimit,posix_getsid,posix_getuid,posix_isatty,posix_kill,posix_mkfifo,posix_setegid,posix_seteuid,posix_setgid,posix_setpgid,posix_setsid,posix_setuid,posix_times,posix_ttyname,posix_uname,pclose,popen,proc_open,proc_close,proc_get_status,proc_nice,proc_terminate,shell_exec,source,show_source,system,virtual MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/share/npm/node_modules/lockfile/test/ |
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var fs = require('fs')
var lockFile = require('../')
var test = require('tap').test
var path = require('path')
var lock = path.resolve(__dirname, 'stale.lock')
var touch = require('touch')
var spawn = require('child_process').spawn
var node = process.execPath
// We're using a lockfile with an artificially old date,
// so make it use that instead of ctime.
// Probably you should never do this in production!
lockFile.filetime = 'mtime'
if (process.argv[2] === 'child') {
return child()
}
function child () {
// Make fs.stat take 100ms to return its data
// This is important because, in a test scenario where
// we're statting the same exact file rapid-fire like this,
// it'll end up being cached by the FS, and never trigger
// the race condition we're trying to expose.
fs.stat = function (stat) { return function () {
var args = [].slice.call(arguments)
var cb = args.pop()
stat.apply(fs, args.concat(function(er, st) {
setTimeout(function () {
cb(er, st)
}, 100)
}))
}}(fs.stat)
lockFile.lock(lock, { stale: 100000 }, function (er) {
if (er && er.code !== 'EEXIST')
throw er
else if (er)
process.exit(17)
else
setTimeout(function(){}, 500)
})
}
test('create stale file', function (t) {
try { fs.unlinkSync(lock) } catch (er) {}
touch.sync(lock, { time: '1979-07-01T19:10:00.000Z' })
t.end()
})
test('contenders', function (t) {
var n = 10
var fails = 0
var wins = 0
var args = [ __filename, 'child' ]
var opt = { stdio: [0, "pipe", 2] }
for (var i = 0; i < n; i++) {
spawn(node, args, opt).on('close', then)
}
function then (code) {
if (code === 17) {
fails ++
} else if (code) {
t.fail("unexpected failure", code)
fails ++
} else {
wins ++
}
if (fails + wins === n) {
done()
}
}
function done () {
t.equal(wins, 1, "should have 1 lock winner")
t.equal(fails, n - 1, "all others should lose")
t.end()
}
})
test('remove stale file', function (t) {
try { fs.unlinkSync(lock) } catch (er) {}
t.end()
})