协程coroutine

非常好用的协程库，也可以当作线程管理来用

#include "coroutine.h"
#include <stdio.h>

struct args {
    int n;
};

static void
foo(struct schedule * S, void *ud) {
    struct args * arg = ud;
    int start = arg->n;
    int i;
    for (i=0;i<5;i++) {
        printf("coroutine %d : %d
",coroutine_running(S) , start + i);
        coroutine_yield(S);
    }
}

static void
test(struct schedule *S) {
    struct args arg1 = { 0 };
    struct args arg2 = { 100 };

    int co1 = coroutine_new(S, foo, &arg1);
    int co2 = coroutine_new(S, foo, &arg2);
    printf("main start
");
    while (coroutine_status(S,co1) && coroutine_status(S,co2)) {
        coroutine_resume(S,co1);
        coroutine_resume(S,co2);
    } 
    printf("main end
");
}

int 
main() {
    struct schedule * S = coroutine_open();
    test(S);
    coroutine_close(S);
    
    return 0;
}

https://github.com/zhoudd1/coroutine