acl/lib_fiber/samples/fiber/main.c

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#include "lib_acl.h"
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(_WIN32) && !defined(_WIN64)
#include <unistd.h>
#endif
#include "fiber/libfiber.h"
#include "stamp.h"
static int __max_loop = 1000;
static int __max_fiber = 1000;
static int __display = 0;
static __thread struct timeval __begin;
static __thread long long __count = 0;
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#define DUMMY_SIZE 512000
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static void stack_dummy(ACL_FIBER *fiber acl_unused)
{
char buf[DUMMY_SIZE];
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memset(buf, 0, sizeof(buf));
printf("%s: called OK, dummy_size=%d\r\n", __FUNCTION__, DUMMY_SIZE);
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}
static void fiber_main(ACL_FIBER *fiber, void *ctx acl_unused)
{
int i;
size_t shared_stack_size = acl_fiber_get_shared_stack_size();
printf("\r\nshared_stack_size=%zd\r\n\r\n", shared_stack_size);
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if (acl_fiber_use_share_stack(fiber) && shared_stack_size > DUMMY_SIZE) {
stack_dummy(fiber);
}
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errno = acl_fiber_errno(fiber);
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for (i = 0; i < __max_loop; i++) {
if (__count < 10) {
printf("fiber-%d, run, begin to yield\r\n",
acl_fiber_id(fiber));
}
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acl_fiber_yield();
if (__count++ < 10) {
printf("fiber-%d, wakeup errno: %d\r\n",
acl_fiber_id(fiber), errno);
printf("---------------------------------------\r\n");
}
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}
printf("%s: fiber-%d exiting, count=%lld ...\r\n",
__FUNCTION__, acl_fiber_id(fiber), __count);
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}
static void *thread_main(void *ctx)
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{
ACL_FIBER_ATTR *attr = (ACL_FIBER_ATTR *) ctx;
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int i;
for (i = 0; i < __max_fiber; i++) {
acl_fiber_create2(attr, fiber_main, NULL);
}
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acl_fiber_schedule();
printf("thread: %lu\r\n", (unsigned long) acl_pthread_self());
return NULL;
}
static void calc_speed(void)
{
long long count = __max_fiber * __max_loop;
struct timeval end;
double spent, speed;
gettimeofday(&end, NULL);
spent = stamp_sub(&end, &__begin);
speed = (count * 1000) / (spent > 0 ? spent : 1);
printf("\r\nfibers: %d, count: %lld, spent: %.2f, speed: %.2f\r\n",
__max_fiber, count, spent, speed);
}
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static void usage(const char *procname)
{
printf("usage: %s -h [help]\r\n"
" -n max_loop\r\n"
" -c max_fiber\r\n"
" -t max_threads\r\n"
" -d stack_size\r\n"
" -e [if display]\r\n"
" -S [if use shared stack]\r\n"
, procname);
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}
int main(int argc, char *argv[])
{
int ch, i, nthreads = 1;
acl_pthread_attr_t attr;
acl_pthread_t *tids;
ACL_FIBER_ATTR fiber_attr;
size_t stack_size = 64000;
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acl_fiber_attr_init(&fiber_attr);
while ((ch = getopt(argc, argv, "hn:c:t:ed:S")) > 0) {
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switch (ch) {
case 'h':
usage(argv[0]);
return 0;
case 'n':
__max_loop = atoi(optarg);
break;
case 'c':
__max_fiber = atoi(optarg);
break;
case 't':
nthreads = atoi(optarg);
if (nthreads <= 0)
nthreads = 1;
break;
case 'd':
stack_size = (size_t) atoi(optarg);
acl_fiber_attr_setstacksize(&fiber_attr, stack_size);
break;
case 'S':
acl_fiber_attr_setsharestack(&fiber_attr, 1);
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break;
case 'e':
__display = 1;
break;
default:
break;
}
}
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acl_fiber_set_shared_stack_size(8000000);
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acl_pthread_attr_init(&attr);
tids = (acl_pthread_t *) acl_mycalloc(nthreads, sizeof(acl_pthread_t));
gettimeofday(&__begin, NULL);
for (i = 0; i < nthreads; i++) {
acl_pthread_create(&tids[i], &attr, thread_main, &fiber_attr);
}
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for (i = 0; i < nthreads; i++) {
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acl_pthread_join(tids[i], NULL);
}
calc_speed();
printf("All fiber threads exited now ...\r\n");
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acl_myfree(tids);
#if defined(_WIN32) || defined(_WIN64)
printf("enter any key to exit ..."); fflush(stdout);
getchar();
#endif
return 0;
}