/*
run threads inside goroutine and each thread will be blocked by
`C.pthread_join`.
*/
func run_in_block_with_pthread_join(number_to_run int) ([]int, []string) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_values_collected := make([]int, 0)
_thread_ids := make([]string, 0)
tp := threadpool.NewThreadPool(number_to_run)
for i := 0; i < number_to_run; i++ {
log.Debug("> [%5d]", i)
tid := tp.Start(
threadpool.ThreadCallback(func(args unsafe.Pointer) {
_args := *(**([1]interface{}))(unsafe.Pointer(&args))
_v, _ := _args[0].(int)
// run go function
_f := Fibonacci(_v)
_values_collected = append(_values_collected, _f)
_tid := get_thread_id()
_thread_ids = append(_thread_ids, _tid)
log.Debug(" [%5d] tid=%p, Fibonacci=%-7d, args=(%T, %T)", _v, _tid, _f, _v)
}),
int(i),
)
tp.Join(tid)
log.Debug("< [%5d]", i)
}
return _values_collected, _thread_ids
}
/*
run threads inside goroutine and each thread will be blocked by
`C.pthread_join` and wait the end of execution with `channel`
*/
func run_in_goroutine_with_pthread_join_and_channel(number_to_run int) ([]int, []string) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_values_collected := make([]int, 0)
_thread_ids := make([]string, 0)
_channel_collect_seq := make(chan int)
/*
if you increase the `number_to_run` too high, you may face the
segfault, it's totally up to your system.
*/
tp := threadpool.NewThreadPool(number_to_run)
for i := 0; i < number_to_run; i++ {
go func(j int, ch chan int) {
lock.Lock()
defer lock.Unlock()
tid := tp.Start(
threadpool.ThreadCallback(func(args unsafe.Pointer) {
_args := *(**([2]interface{}))(unsafe.Pointer(&args))
_v := _args[0].(int)
_ch := _args[1].(chan int)
// run go function
_f := Fibonacci(_v)
_values_collected = append(_values_collected, _f)
_tid := get_thread_id()
_thread_ids = append(_thread_ids, _tid)
log.Debug("result: [%5d] tid=%p, Fibonacci=%-7d, args=(%T, %T)", _v, _tid, _f, _v, _ch)
_ch <- _v
}),
j,
ch,
)
tp.Join(tid)
}(int(i), _channel_collect_seq)
}
_done := make(chan bool, 1)
_got := []int{}
for _v := range _channel_collect_seq {
_got = append(_got, _v)
if len(_got) == number_to_run {
_done <- true
break
}
}
<-_done
close(_channel_collect_seq)
close(_done)
return _values_collected, _thread_ids
}
/*
run threads inside goroutine and each thread will be blocked by
`sync.WaitGroup` and wait the end of execution with `WaitGroup`
*/
func run_in_goroutine_without_pthread_join_with_WaitGroup(number_to_run int) ([]int, []string) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_values_collected := make([]int, 0)
_thread_ids := make([]string, 0)
var wg sync.WaitGroup
wg.Add(number_to_run)
tp := threadpool.NewThreadPool(number_to_run)
for i := 0; i < number_to_run; i++ {
go func(j int) {
lock.Lock()
defer lock.Unlock()
var wg_thread sync.WaitGroup
wg_thread.Add(1)
tp.Start(
threadpool.ThreadCallback(func(args unsafe.Pointer) {
_args := *(**([2]interface{}))(unsafe.Pointer(&args))
_v := _args[0].(int)
// run go function
_f := Fibonacci(_v)
_values_collected = append(_values_collected, _f)
_tid := get_thread_id()
_thread_ids = append(_thread_ids, _tid)
log.Debug("result: [%5d] tid=%p, Fibonacci=%-7d, args=(%T)", _v, _tid, _f, _v)
wg_thread.Done()
}),
j,
)
wg_thread.Wait()
wg.Done()
}(int(i))
}
wg.Wait()
return _values_collected, _thread_ids
}
/*
run threads in golang and each thread will be blocked by `channel`.
*/
func run_in_block_with_channel(number_to_run int) ([]int, []string) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_values_collected := make([]int, 0)
_thread_ids := make([]string, 0)
tp := threadpool.NewThreadPool(number_to_run + 1)
for i := 0; i < number_to_run; i++ {
j := int(i)
log.Debug("> [%5d]", j)
_chan := make(chan bool)
tp.Start(
threadpool.ThreadCallback(func(args unsafe.Pointer) {
_args := *(**([2]interface{}))(unsafe.Pointer(&args))
_v, _ := _args[0].(int)
_ch, _ := _args[1].(chan bool)
// run go function
_f := Fibonacci(_v)
_values_collected = append(_values_collected, _f)
_tid := get_thread_id()
_thread_ids = append(_thread_ids, _tid)
log.Debug(" [%5d], tid=%p, Fibonacci=%-7d, args=(%T, %T)", _v, _tid, _f, _v, _ch)
_ch <- true
}),
j,
_chan,
)
<-_chan
close(_chan)
log.Debug("< [%5d]", j)
}
return _values_collected, _thread_ids
}
/*
run threads in golang and each thread will be blocked by `sync.WaitGroup`.
*/
func run_in_block_with_WaitGroup(number_to_run int) ([]int, []string) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_values_collected := make([]int, 0)
_thread_ids := make([]string, 0)
tp := threadpool.NewThreadPool(number_to_run + 1)
for i := 0; i < number_to_run; i++ {
j := int(i)
log.Debug("> [%5d]", j)
var wg sync.WaitGroup
wg.Add(1)
tp.Start(
threadpool.ThreadCallback(func(args unsafe.Pointer) {
_args := *(**([2]interface{}))(unsafe.Pointer(&args))
_v, _ := _args[0].(int)
// run go function
_f := Fibonacci(_v)
_values_collected = append(_values_collected, _f)
_tid := get_thread_id()
_thread_ids = append(_thread_ids, _tid)
log.Debug(" [%5d], tid=%p, Fibonacci=%-7d, args=(%T)", _v, _tid, _f, _v)
wg.Done()
}),
j,
)
wg.Wait()
log.Debug("< [%5d]", j)
}
return _values_collected, _thread_ids
}