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compile_all.cpp
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1
16 #include <boost/bind.hpp>
17 #include <boost/thread/mutex.hpp>
18 #include <iostream>
19 #include <sstream>
20
21 #include <boost/threadpool.hpp>
22
23 using namespace std;
24 using namespace boost::threadpool;
25
26 //
27 // Helpers
28 boost::mutex m_io_monitor;
29
30 void print( string text )
31 {
32 boost::mutex::scoped_lock lock( m_io_monitor );
33 cout << text;
34 }
35
36 template <typename T>
37 string to_string( T const& value )
38 {
39 ostringstream ost;
40 ost << value;
41 ost.flush();
42 return ost.str();
43 }
44
45 //
46 // An example task functions
47 void task_1() { print( " task_1()\n" ); }
48
49 void task_2() { print( " task_2()\n" ); }
50
51 void task_3() { print( " task_3()\n" ); }
52
53 int task_4()
54 {
55 print( " task_4()\n" );
56 return 4;
57 }
58
59 void task_with_parameter( int value ) { print( " task_with_parameter(" + to_string( value ) + ")\n" ); }
60
61 int loops = 0;
62 bool looped_task()
63 {
64 print( " looped_task()\n" );
65 return ++loops < 5;
66 }
67
68 int task_int()
69 {
70 print( " task_int()\n" );
71 return 23;
72 }
73
74 void fifo_pool_test()
75 {
76 pool tp;
77
78 tp.schedule( &task_1 );
79 tp.schedule( boost::bind( task_with_parameter, 4 ) );
80
81 if ( !tp.empty() ) {
82 tp.clear(); // remove all tasks -> no output in this test
83 }
84
85 size_t active_threads = tp.active();
86 size_t pending_threads = tp.pending();
87 size_t total_threads = tp.size();
88
89 size_t dummy = active_threads + pending_threads + total_threads;
90 dummy++;
91
92 tp.size_controller().resize( 5 );
93 tp.wait();
94 }
95
96 void lifo_pool_test()
97 {
98 lifo_pool tp;
99 tp.size_controller().resize( 0 );
100 schedule( tp, &task_1 );
101 tp.size_controller().resize( 10 );
102 tp.wait();
103 }
104
105 void prio_pool_test()
106 {
107 prio_pool tp( 2 );
108 schedule( tp, prio_task_func( 1, &task_1 ) );
109 schedule( tp, prio_task_func( 10, &task_2 ) );
110 }
111
112 void future_test()
113 {
114 fifo_pool tp( 5 );
115 future<int> fut = schedule( tp, &task_4 );
116 int res = fut();
117 }
118
119 int main( int, char* const[] )
120 {
121 fifo_pool_test();
122 lifo_pool_test();
123 prio_pool_test();
124 future_test();
125 return 0;
126 }
lifo_pool_test
void lifo_pool_test()
Definition: compile_all.cpp:96
boost::threadpool::thread_pool::wait
void wait(size_t task_threshold=0) const
The current thread of execution is blocked until the sum of all active and pending tasks is equal or ...
Definition: pool.hpp:176
looped_task
bool looped_task()
Definition: compile_all.cpp:62
task_with_parameter
void task_with_parameter(int value)
Definition: compile_all.cpp:59
std::to_string
T to_string(T...args)
std
STL namespace.
std::future
future_test
void future_test()
Definition: compile_all.cpp:112
boost::threadpool::thread_pool::schedule
bool schedule(task_type const &task)
Schedules a task for asynchronous execution.
Definition: pool.hpp:130
task_3
void task_3()
Definition: compile_all.cpp:51
boost::threadpool::thread_pool::empty
bool empty() const
Indicates that there are no tasks pending.
Definition: pool.hpp:166
loops
int loops
Definition: compile_all.cpp:61
task_4
int task_4()
Definition: compile_all.cpp:53
boost::threadpool::thread_pool::pending
size_t pending() const
Returns the number of tasks which are ready for execution.
Definition: pool.hpp:148
prio_pool_test
void prio_pool_test()
Definition: compile_all.cpp:105
pool
Definition: PoolClasses.h:11
boost::threadpool::schedule
disable_if< is_void< typename result_of< Function() >::type >, future< typename result_of< Function() >::type >>::type schedule(Pool &pool, const Function &task)
Definition: future.hpp:111
std::ostringstream
STL class.
compareRootHistos.tp
tuple tp
Definition: compareRootHistos.py:417
std::lock
T lock(T...args)
boost::threadpool::thread_pool::active
size_t active() const
Returns the number of tasks which are currently executed.
Definition: pool.hpp:139
std::ostringstream::str
T str(T...args)
boost::threadpool::thread_pool::size_controller
size_controller_type size_controller()
Gets the size controller which manages the number of threads in the pool.
Definition: pool.hpp:111
main
int main(int, char *const [])
Definition: compile_all.cpp:119
task_1
void task_1()
Definition: compile_all.cpp:47
boost::threadpool
Definition: future.hpp:32
std::ostringstream::flush
T flush(T...args)
print
void print(string text)
Definition: compile_all.cpp:30
boost::threadpool::thread_pool
Thread pool.
Definition: pool.hpp:73
task_2
void task_2()
Definition: compile_all.cpp:49
boost::threadpool::thread_pool::clear
void clear()
Removes all pending tasks from the pool&#39;s scheduler.
Definition: pool.hpp:156
boost::threadpool::prio_task_func
Prioritized task function object.
Definition: task_adaptors.hpp:51
m_io_monitor
boost::mutex m_io_monitor
Definition: compile_all.cpp:28
task_int
int task_int()
Definition: compile_all.cpp:68
std::cout
fifo_pool_test
void fifo_pool_test()
Definition: compile_all.cpp:74
boost::threadpool::thread_pool::size
size_t size() const
Gets the number of threads in the pool.
Definition: pool.hpp:120
threadpool.hpp
Main include.