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read channel until EAGAIN

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This commit is contained in:
Igor Sysoev 2008-05-25 18:27:38 +00:00
parent 875f90f6d2
commit 889d7a8301
1 changed files with 58 additions and 54 deletions
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112
src/os/unix/ngx_process_cycle.c
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@ -1054,70 +1054,74 @@ ngx_channel_handler(ngx_event_t *ev)
ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
for ( ;; ) {
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
if (n == NGX_ERROR) {
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
ngx_del_conn(c, 0);
}
if (n == NGX_ERROR) {
ngx_close_connection(c);
return;
}
if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
ngx_del_conn(c, 0);
}
if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
ngx_close_connection(c);
return;
}
}
if (n == NGX_AGAIN) {
return;
}
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
"channel command: %d", ch.command);
switch (ch.command) {
case NGX_CMD_QUIT:
ngx_quit = 1;
break;
case NGX_CMD_TERMINATE:
ngx_terminate = 1;
break;
case NGX_CMD_REOPEN:
ngx_reopen = 1;
break;
case NGX_CMD_OPEN_CHANNEL:
ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
"get channel s:%i pid:%P fd:%d", ch.slot, ch.pid, ch.fd);
ngx_processes[ch.slot].pid = ch.pid;
ngx_processes[ch.slot].channel[0] = ch.fd;
break;
case NGX_CMD_CLOSE_CHANNEL:
ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
"close channel s:%i pid:%P our:%P fd:%d",
ch.slot, ch.pid, ngx_processes[ch.slot].pid,
ngx_processes[ch.slot].channel[0]);
if (close(ngx_processes[ch.slot].channel[0]) == -1) {
ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
"close() channel failed");
if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
return;
}
}
ngx_processes[ch.slot].channel[0] = -1;
break;
if (n == NGX_AGAIN) {
return;
}
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
"channel command: %d", ch.command);
switch (ch.command) {
case NGX_CMD_QUIT:
ngx_quit = 1;
break;
case NGX_CMD_TERMINATE:
ngx_terminate = 1;
break;
case NGX_CMD_REOPEN:
ngx_reopen = 1;
break;
case NGX_CMD_OPEN_CHANNEL:
ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
"get channel s:%i pid:%P fd:%d",
ch.slot, ch.pid, ch.fd);
ngx_processes[ch.slot].pid = ch.pid;
ngx_processes[ch.slot].channel[0] = ch.fd;
break;
case NGX_CMD_CLOSE_CHANNEL:
ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
"close channel s:%i pid:%P our:%P fd:%d",
ch.slot, ch.pid, ngx_processes[ch.slot].pid,
ngx_processes[ch.slot].channel[0]);
if (close(ngx_processes[ch.slot].channel[0]) == -1) {
ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
"close() channel failed");
}
ngx_processes[ch.slot].channel[0] = -1;
break;
}
}
}