void aio_ostream::write(const void* data, int len,
acl_int64 delay /* = 0 */,
aio_timer_writer* callback /* = NULL */)
{
if (delay > 0)
{
disable_write();
aio_timer_writer* timer_writer;
if (callback != NULL)
timer_writer= callback;
else
timer_writer = NEW aio_timer_writer();
// 设置 timer_writer_ 对象的成员变量
timer_writer->out_ = this;
timer_writer->buf_.copy(data, len);
// 将该写操作放入延迟异步写的队列中
timer_writers_.push_back(timer_writer);
// 设置定时器
handle_->set_timer(timer_writer, delay);
return;
}
acl_assert(stream_);
acl_aio_writen(stream_, (const char*) data, len);
}
static void event_set_all(ACL_EVENT *eventp)
{
EVENT_KERNEL *ev = (EVENT_KERNEL *) eventp;
ACL_EVENT_FDTABLE *fdp;
int i;
/* 优先处理添加读/写监控任务, 这样可以把中间的 ADD 状态转换成正式状态 */
eventp->fdcnt_ready = 0;
if (eventp->present - eventp->last_check >= eventp->check_inter) {
eventp->last_check = eventp->present;
event_check_fds(eventp);
}
/* 处理任务项 */
while (1) {
ACL_RING *r = acl_ring_pop_head(&ev->fdp_delay_list);
if (r == NULL)
break;
fdp = acl_ring_to_appl(r, ACL_EVENT_FDTABLE, delay_entry);
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_READ)) {
enable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_WRITE)) {
enable_write(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_READ)) {
disable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_WRITE)) {
disable_write(ev, fdp);
}
fdp->flag &= ~EVENT_FDTABLE_FLAG_DELAY_OPER;
}
for (i = 0; i < eventp->fdcnt; i++) {
fdp = eventp->fdtabs[i];
if ((fdp->event_type & (ACL_EVENT_XCPT | ACL_EVENT_RW_TIMEOUT)))
continue;
if ((fdp->flag & EVENT_FDTABLE_FLAG_READ)
&& (fdp->event_read == NULL || fdp->event_read->type == 0))
{
enable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_WRITE)
&& (fdp->event_write == NULL || fdp->event_write->type == 0))
{
enable_write(ev, fdp);
}
}
}
static void event_set_all(ACL_EVENT *eventp)
{
EVENT_KERNEL *ev = (EVENT_KERNEL *) eventp;
ACL_EVENT_FDTABLE *fdp;
/* 优先处理添加读/写监控任务, 这样可以把 ADD 中间态转换成正式状态 */
eventp->ready_cnt = 0;
if (eventp->present - eventp->last_check >= eventp->check_inter
|| eventp->read_ready > 0)
{
eventp->read_ready = 0;
eventp->last_check = eventp->present;
event_check_fds(eventp);
}
/* 处理任务项 */
while (1) {
ACL_RING *r = acl_ring_pop_head(&ev->fdp_delay_list);
if (r == NULL)
break;
fdp = acl_ring_to_appl(r, ACL_EVENT_FDTABLE, delay_entry);
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_READ)) {
enable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_WRITE)) {
enable_write(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_READ)) {
disable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_WRITE)) {
disable_write(ev, fdp);
}
fdp->flag &= ~EVENT_FDTABLE_FLAG_DELAY_OPER;
}
}
static void event_set_all(ACL_EVENT *eventp)
{
EVENT_KERNEL *ev = (EVENT_KERNEL *) eventp;
ACL_EVENT_FDTABLE *fdp;
int i;
/* 优先处理添加读/写监控任务, 这样可以把中间的 ADD 状态转换成正式状态 */
eventp->fdcnt_ready = 0;
if (eventp->event_present - ev->last_check >= 1000000) {
ev->last_check = eventp->event_present;
for (i = 0; i < eventp->fdcnt; i++) {
fdp = eventp->fdtabs[i];
if ((fdp->stream->flag & ACL_VSTREAM_FLAG_BAD) != 0) {
fdp->stream->flag &= ~ACL_VSTREAM_FLAG_BAD;
fdp->event_type |= ACL_EVENT_XCPT;
fdp->fdidx_ready = eventp->fdcnt_ready;
eventp->fdtabs_ready[eventp->fdcnt_ready++] = fdp;
} else if ((fdp->flag & EVENT_FDTABLE_FLAG_READ)) {
if (ACL_VSTREAM_BFRD_CNT(fdp->stream) > 0) {
fdp->stream->sys_read_ready = 0;
fdp->event_type |= ACL_EVENT_READ;
fdp->fdidx_ready = eventp->fdcnt_ready;
eventp->fdtabs_ready[eventp->fdcnt_ready++] = fdp;
} else if (fdp->r_ttl > 0 && eventp->event_present > fdp->r_ttl) {
fdp->event_type |= ACL_EVENT_RW_TIMEOUT;
fdp->fdidx_ready = eventp->fdcnt_ready;
eventp->fdtabs_ready[eventp->fdcnt_ready++] = fdp;
}
} else if ((fdp->flag & EVENT_FDTABLE_FLAG_WRITE)) {
if (fdp->w_ttl > 0 && eventp->event_present > fdp->w_ttl) {
fdp->event_type |= ACL_EVENT_RW_TIMEOUT;
fdp->fdidx_ready = eventp->fdcnt_ready;
eventp->fdtabs_ready[eventp->fdcnt_ready++] = fdp;
}
}
}
}
/* 处理任务项 */
while (1) {
ACL_RING *r = acl_ring_pop_head(&ev->fdp_delay_list);
if (r == NULL)
break;
fdp = acl_ring_to_appl(r, ACL_EVENT_FDTABLE, delay_entry);
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_READ)) {
enable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_ADD_WRITE)) {
enable_write(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_READ)) {
disable_read(ev, fdp);
}
if ((fdp->flag & EVENT_FDTABLE_FLAG_DEL_WRITE)) {
disable_write(ev, fdp);
}
fdp->flag &= ~EVENT_FDTABLE_FLAG_DELAY_OPER;
}
}
