I tried , it is *not* in the same thread. if cwork and gowork call
thread-unsafe api, it will crash
package main
// #include <pthread.h>
import "C"
import (
_ "fmt"
"time"
"runtime"
)
var go_done = make(chan bool, 1)
var c_done = make(chan bool, 1)
func init() {
runtime.GOMAXPROCS(1)
//runtime.LockOSThread()
}
func GoWork() {
//runtime.LockOSThread()
println("GoWork thread=", C.pthread_self())
go_done <- true
for {
<-c_done
println("c done, now go thread=",C.pthread_self())
time.Sleep(time.Second)
go_done <- true
}
}
func main() {}
//export Start
func Start() {
//runtime.LockOSThread()
println("C Start thread=", C.pthread_self())
go GoWork()
//for {
// <-go_done
// println("go done, now c wokr")
// time.Sleep(time.Second)
// c_done <- true
//}
}
//export CWork
func CWork() {
<-go_done
println("go done, now c thread=",C.pthread_self())
time.Sleep(time.Second)
c_done <- true
}
#include <stdio.h>
#include <pthread.h>
#include "sync.h"
int main (){
printf("main thread=%p\n", pthread_self());
Start();
while(1) {
CWork();
}
return 0;
}
2017-04-28 16:17 GMT+08:00 <djad...@gmail.com>:
>
>
> On Friday, April 28, 2017 at 9:18:03 AM UTC+3, hui zhang wrote:
>>
>> How let go and c code work Alternately in the same thread with
>> goroutine(corouting mechanism)
>> Check the code below. c and go code in one thread they just do work 1 by
>> 1.
>> Expected Result
>>
>>> Do CWork
>>> Do GoWork
>>> Do CWork
>>> Do GoWork
>>> Do CWork
>>> .....
>>
>>
>> //c code
>>> void CWork() {
>>> while(1) {
>>> --Print Do CWork
>>> --Coroutine Stop
>>> --switch to GoWork()
>>> }
>>> }
>>> int main() {
>>> CWork();
>>> }
>>> //go code
>>> func GoWork() {
>>> for {
>>> --Print Do GoWork
>>> --Coroutine Stop
>>> --switch back to CWork()
>>> }
>>> }
>>
>>
>>
>>
>
>
> Hi, simplest solution:
>
> //c code
>> void CWork() {
>> --Print Do CWork
>> }
>> int main() {
>> for {
>> C.CWork()
>> GoWork()
>> }
>> }
>>
>> //go code
>> func GoWork() {
>> --Print Do GoWork
>> }
>
>
>
> Djadala
>
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