Issue using std :: atomic_flag with worker thread
sorry for the verbosity - Ich habe mein Bestes getan, um mein Codebeispiel in einer minimal funktionalen Klasse zu komprimieren undmain()
Methode
Ich versuche ein @ zu benutzatomic_flag
bemerken_rx()
in meinem Worker-Thread beenden, wennstop()
wird genannt
ch glaube, das Problem liegt darin, meinen Arbeitsthread zu erstelle
thread SanityTestThread(&SanityTest::_rx, *this);
was irgendwie mit meinem @ kollidieatomic_flag
code sample (nicht kompilierbar):
#include <cstdio>
#include <chrono>
#include <unistd.h>
#include <atomic>
#include <iostream>
#include <thread>
using namespace std;
class SanityTest
{
public:
SanityTest(){}
void start();
void stop();
private:
void _rx();
atomic_flag flag;
}; // end class SanityTest
void SanityTest::_rx()
{
while(flag.test_and_set())
{
this_thread::sleep_for(chrono::seconds(1));
cout << "'sup foo" << endl;
}
} // end _rx
void SanityTest::start()
{
flag.test_and_set();
thread SanityTestThread(&SanityTest::_rx, *this);
SanityTestThread.detach();
} // end start
void SanityTest::stop()
{
flag.clear();
} // end start
int main(){
SanityTest s;// = SanityTest();
s.start();
this_thread::sleep_for(chrono::seconds(10));
s.stop();
return 0;
} // end main
Für den Datensatz kann ich mein Programm kompilieren und ausführen lassen, indem ich alle Verweise auf mein @ entfernatomic_flag
und mein @ ersetz_rx()
Schleife mit einer for-Schleife wie folgt:
void SanityTest::_rx()
{
for(int i=0; i <=10; ++ i)
{
this_thread::sleep_for(chrono::seconds(1));
cout << "'sup foo" << endl;
}
} // end _rx
Compiler-Fehler:
In file included from ./SanityTest.cpp:1:0:
./SanityTest.hpp:14:7: note: ‘SanityTest::SanityTest(SanityTest&&)’ is implicitly deleted because the default definition would be ill-formed:
class SanityTest
^
./SanityTest.hpp:14:7: error: use of deleted function ‘std::atomic_flag::atomic_flag(const std::atomic_flag&)’
In file included from /usr/include/c++/4.8/atomic:41:0,
from ./SanityTest.hpp:8,
from ./SanityTest.cpp:1:
/usr/include/c++/4.8/bits/atomic_base.h:275:5: error: declared here
atomic_flag(const atomic_flag&) = delete;
^
In file included from /usr/include/c++/4.8/functional:55:0,
from /usr/include/c++/4.8/thread:39,
from ./SanityTest.hpp:10,
from ./SanityTest.cpp:1:
...
In file included from ./SanityTest.cpp:1:0:
./SanityTest.hpp:14:7: note: ‘SanityTest::SanityTest(SanityTest&&)’ is implicitly deleted because the default definition would be ill-formed:
class SanityTest
^
./SanityTest.hpp:14:7: error: use of deleted function ‘std::atomic_flag::atomic_flag(const std::atomic_flag&)’
In file included from /usr/include/c++/4.8/atomic:41:0,
from ./SanityTest.hpp:8,
from ./SanityTest.cpp:1:
/usr/include/c++/4.8/bits/atomic_base.h:275:5: error: declared here
atomic_flag(const atomic_flag&) = delete;
^
In file included from /usr/include/c++/4.8/functional:55:0,
from /usr/include/c++/4.8/thread:39,
from ./SanityTest.hpp:10,
from ./SanityTest.cpp:1:
p.s. Dies wird kompiliert mit,g++ -pthread -std=c++0x -o SanityTest ./SanityTest.cpp