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Merge #12750: Replace boost::call_once with std::call_once

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57dae3fc4a Replace boost::call_once with std::call_once (donaloconnor)

Pull request description:

  This replaces boost::call_once with the C++11 std::call_once. The aim is to remove unnecessary boost code.

  Tested on Windows/MSVC

Tree-SHA512: 5e98ea6e5052fffeaf29f845f4ecf1078b38cbb27671c5b7b6167e7f074a391e10020445107979d9e220d029bc9464fb8b2ccb0bea664eeb7af59a789c988b10
This commit is contained in:
Pieter Wuille 2018-03-21 15:53:46 -07:00
commit e0f7515f55
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GPG Key ID: A636E97631F767E0
1 changed files with 8 additions and 8 deletions
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16
src/util.cpp
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@ -159,10 +159,10 @@ instance_of_cinit;
* the mutex).
*/
static boost::once_flag debugPrintInitFlag = BOOST_ONCE_INIT;
static std::once_flag debugPrintInitFlag;
/**
* We use boost::call_once() to make sure mutexDebugLog and
* We use std::call_once() to make sure mutexDebugLog and
* vMsgsBeforeOpenLog are initialized in a thread-safe manner.
*
* NOTE: fileout, mutexDebugLog and sometimes vMsgsBeforeOpenLog
@ -171,7 +171,7 @@ static boost::once_flag debugPrintInitFlag = BOOST_ONCE_INIT;
* tested, explicit destruction of these objects can be implemented.
*/
static FILE* fileout = nullptr;
static boost::mutex* mutexDebugLog = nullptr;
static std::mutex* mutexDebugLog = nullptr;
static std::list<std::string>* vMsgsBeforeOpenLog;
static int FileWriteStr(const std::string &str, FILE *fp)
@ -182,7 +182,7 @@ static int FileWriteStr(const std::string &str, FILE *fp)
static void DebugPrintInit()
{
assert(mutexDebugLog == nullptr);
mutexDebugLog = new boost::mutex();
mutexDebugLog = new std::mutex();
vMsgsBeforeOpenLog = new std::list<std::string>;
}
@ -194,8 +194,8 @@ fs::path GetDebugLogPath()
bool OpenDebugLog()
{
boost::call_once(&DebugPrintInit, debugPrintInitFlag);
boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
std::call_once(debugPrintInitFlag, &DebugPrintInit);
std::lock_guard<std::mutex> scoped_lock(*mutexDebugLog);
assert(fileout == nullptr);
assert(vMsgsBeforeOpenLog);
@ -350,8 +350,8 @@ int LogPrintStr(const std::string &str)
}
else if (fPrintToDebugLog)
{
boost::call_once(&DebugPrintInit, debugPrintInitFlag);
boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
std::call_once(debugPrintInitFlag, &DebugPrintInit);
std::lock_guard<std::mutex> scoped_lock(*mutexDebugLog);
// buffer if we haven't opened the log yet
if (fileout == nullptr) {