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Oliver Kowalke
2011-02-09 18:41:35 +01:00
commit 39ec793737
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libs/tasklet/examples/interrupt.cpp Normal file
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#include <cstdlib>
#include <iostream>
#include <string>
#include <boost/bind.hpp>
#include <boost/tasklet.hpp>
int value1 = 0;
int value2 = 0;
int value3 = 0;
void fn_1()
{
for ( int i = 0; i < 10; ++i)
{
++value1;
std::cout << "fn_1() increment value1 " << value1 << std::endl;
boost::this_tasklet::interruption_point();
boost::this_tasklet::yield();
}
}
void fn_2()
{
boost::this_tasklet::disable_interruption disabled;
for ( int i = 0; i < 10; ++i)
{
++value2;
std::cout << "fn_2() increment value2 " << value2 << std::endl;
boost::this_tasklet::interruption_point();
boost::this_tasklet::yield();
}
}
void fn_3()
{
boost::this_tasklet::disable_interruption disabled;
for ( int i = 0; i < 10; ++i)
{
++value3;
std::cout << "fn_3() increment value3 " << value3 << std::endl;
boost::this_tasklet::restore_interruption restored( disabled);
boost::this_tasklet::interruption_point();
boost::this_tasklet::yield();
}
}
void fn_4( boost::tasklet f)
{
for ( int i = 0; i < 10; ++i)
{
if ( i == 1)
{
std::cout << "fn_4() interrupt tasklet " << f.get_id() << std::endl;
f.interrupt();
break;
}
boost::this_tasklet::yield();
}
}
int main()
{
try
{
boost::tasklets::scheduler<> sched;
boost::tasklet f1( fn_1, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
sched.submit_tasklet( f1);
sched.submit_tasklet(
boost::tasklet(
fn_4, f1, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
std::cout << "start: interrupt fn_1()" << std::endl;
for (;;)
{
while ( sched.run() );
if ( sched.empty() ) break;
}
std::cout << "finish: value1 == " << value1 << std::endl;
boost::tasklet f2( fn_2, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
sched.submit_tasklet( f2);
sched.submit_tasklet(
boost::tasklet(
fn_4, f2, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
std::cout << "start: interrupt fn_2()" << std::endl;
for (;;)
{
while ( sched.run() );
if ( sched.empty() ) break;
}
std::cout << "finish: value2 == " << value2 << std::endl;
boost::tasklet f3( fn_3, boost::tasklet::default_stacksize, boost::protected_stack_allocator());
sched.submit_tasklet( f3);
sched.submit_tasklet(
boost::tasklet(
fn_4, f3, boost::tasklet::default_stacksize, boost::protected_stack_allocator()) );
std::cout << "start: interrupt fn_3()" << std::endl;
for (;;)
{
while ( sched.run() );
if ( sched.empty() ) break;
}
std::cout << "finish: value3 == " << value3 << std::endl;
return EXIT_SUCCESS;
}
catch ( boost::tasklets::scheduler_error const& e)
{ std::cerr << "scheduler_error: " << e.what() << std::endl; }
catch ( std::exception const& e)
{ std::cerr << "exception: " << e.what() << std::endl; }
catch (...)
{ std::cerr << "unhandled exception" << std::endl; }
return EXIT_FAILURE;
}