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#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <signal.h>
#include <string.h>
#include "triton_p.h"
int max_events=128;
static int epoll_fd;
static struct epoll_event *epoll_events;
static pthread_t md_thr;
static void* md_thread(void *arg)
int md_init()
{
epoll_fd=epoll_create(0);
if (epoll_fd<0)
{
perror("epoll_create");
return -1;
}
epoll_events=malloc(MAX_EVENTS * sizeof(struct epoll_event));
if (!epoll_events)
{
fprintf(stderr,"cann't allocate memory\n");
return -1;
}
default_ctx=malloc(sizeof(*default_ctx));
if (!default_ctx)
{
fprintf(stderr,"cann't allocate memory\n");
return -1;
}
triton_register_ctx(default_ctx);
return 0;
}
void md_run()
{
pthread_create(&md_thr,md_thread,NULL);
}
void md_terminate()
{
pthread_join(&md_thr);
}
static void* md_thread(void *arg)
{
int max_fd=0,t,r;
struct triton_md_handler_t *h;
struct timeval tv1,tv2,twait0;
struct list_head *p1,*p2;
int timeout,i,n;
n=epoll_wait(epoll_fd,epoll_events,MAX_EVENTS,-1);
if (n<0)
{
if (errno!=EINTR)
perror("epoll_wait");
continue;
}
if (n==0)
return;
for(i=0; i<n; i++)
{
h=(struct triton_md_handler_t*)epoll_events[i].data.ptr;
spin_lock(&h->ctx->lock);
h->trig_epoll_events=epoll_events[i].events;
list_add_tail(&h->entry2,&h->ctx->pending_handlers);
h->pending=1;
r=triton_queue_ctx(h->ctx);
spin_unlock(&h->ctx->lock);
if (r)
triton_thread_wakeup(ctx->thread);
}
}
void triton_md_register_handler(struct triton_md_handler_t *h)
{
h->epoll_event.data.ptr=h;
if (!h->ctx)
h->ctx=default_ctx;
pthread_mutex_lock(&h->ctx->lock);
list_add_tail(&h->entry,&h->ctx->handlers);
pthread_mutex_unlock(&h->ctx->lock);
}
void triton_md_unregister_handler(struct triton_md_handler_t *h)
{
pthread_mutex_lock(&h->ctx->lock);
list_del(&h->entry);
if (h->pending)
list_del(&h->entry2);
pthread_lock_unlock(&h->ctx->lock);
}
int triton_md_enable_handler(struct triton_md_handler_t *h, int mode)
{
int r;
int events=h->epoll_event.events;
if (mode&MD_MODE_READ)
h->epoll_event.events|=EPOLLIN;
if (mode&MD_MODE_WRITE)
h->epoll_event.events|=EPOLLOUT;
h->epoll_event.events|=EPOLLET;
if (events)
r=epoll_ctl(epoll_fd,EPOLL_CTL_MOD,h->fd,&h->epoll_event);
else
r=epoll_ctl(epoll_fd,EPOLL_CTL_ADD,h->fd,&h->epoll_event);
return r;
}
int triton_md_disable_handler(struct triton_md_handler_t *h,int mode)
{
if (h->epoll_events.events)
return -1;
if (mode&MD_MODE_READ)
h->epoll_event.events&=~EPOLLIN;
if (mode&MD_MODE_WRITE)
h->epoll_event.events&=~EPOLLOUT;
if (h->epoll_event.events&(EPOLLIN|EPOLLOUT))
r=epoll_ctl(epoll_fd,EPOLL_CTL_MOD,h->fd,&h->epoll_event);
else
{
h->epoll_event.events=0;
r=epoll_ctl(epoll_fd,EPOLL_CTL_DEL,h->fd,NULL);
}
return r;
}
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