ngx_channel        32 os/unix/ngx_process.c ngx_socket_t     ngx_channel;
ngx_channel       174 os/unix/ngx_process.c         ngx_channel = ngx_processes[s].channel[1];
ngx_channel        80 os/unix/ngx_process.h extern ngx_socket_t   ngx_channel;
ngx_channel       998 os/unix/ngx_process_cycle.c     if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,