2 +----------------------------------------------------------------------+
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2010-2014 Facebook, Inc. (http://www.facebook.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
17 #include "hphp/util/lock.h"
18 #include "hphp/util/stack-trace.h"
19 #include "hphp/util/timer.h"
22 ///////////////////////////////////////////////////////////////////////////////
24 LockProfiler::PFUNC_PROFILE
LockProfiler::s_pfunc_profile
= nullptr;
25 bool LockProfiler::s_profile
= false;
26 int LockProfiler::s_profile_sampling
= 1000;
28 LockProfiler::LockProfiler(bool profile
) : m_profiling(false) {
29 if (s_profile
&& s_pfunc_profile
&& profile
&&
30 s_profile_sampling
&& (rand() % s_profile_sampling
) == 0) {
32 Timer::GetMonotonicTime(m_lockTime
);
36 LockProfiler::~LockProfiler() {
39 Timer::GetMonotonicTime(unlockTime
);
40 time_t dsec
= unlockTime
.tv_sec
- m_lockTime
.tv_sec
;
41 long dnsec
= unlockTime
.tv_nsec
- m_lockTime
.tv_nsec
;
42 int64_t dusec
= dsec
* 1000000 + dnsec
/ 1000;
45 s_pfunc_profile(st
.hexEncode(3, 9), dusec
);
49 ///////////////////////////////////////////////////////////////////////////////