static ngx_int_t publish_callback(ngx_int_t status, nchan_channel_t *ch, safe_request_ptr_t *pd) {
nchan_request_ctx_t *ctx;
static nchan_msg_id_t empty_msgid = NCHAN_ZERO_MSGID;
ngx_http_request_t *r = nchan_get_safe_request_ptr(pd);
if(r == NULL) { // the request has since disappered
return NGX_ERROR;
}
ctx = ngx_http_get_module_ctx(r, ngx_nchan_module);
//DBG("publish_callback %V owner %i status %i", ch_id, memstore_channel_owner(ch_id), status);
switch(status) {
case NCHAN_MESSAGE_QUEUED:
//message was queued successfully, but there were no subscribers to receive it.
ctx->prev_msg_id = ctx->msg_id;
ctx->msg_id = ch != NULL ? ch->last_published_msg_id : empty_msgid;
nchan_maybe_send_channel_event_message(r, CHAN_PUBLISH);
ngx_http_finalize_request(r, nchan_response_channel_ptr_info(ch, r, NGX_HTTP_ACCEPTED));
return NGX_OK;
case NCHAN_MESSAGE_RECEIVED:
//message was queued successfully, and it was already sent to at least one subscriber
ctx->prev_msg_id = ctx->msg_id;
ctx->msg_id = ch != NULL ? ch->last_published_msg_id : empty_msgid;
nchan_maybe_send_channel_event_message(r, CHAN_PUBLISH);
ngx_http_finalize_request(r, nchan_response_channel_ptr_info(ch, r, NGX_HTTP_CREATED));
return NGX_OK;
case NGX_ERROR:
case NGX_HTTP_INTERNAL_SERVER_ERROR:
//WTF?
nchan_log_request_error(r, "error publishing message");
ctx->prev_msg_id = empty_msgid;;
ctx->msg_id = empty_msgid;
ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
default:
//for debugging, mostly. I don't expect this branch to behit during regular operation
ctx->prev_msg_id = empty_msgid;;
ctx->msg_id = empty_msgid;
nchan_log_request_error(r, "TOTALLY UNEXPECTED error publishing message, status code %i", status);
ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
}
}
static ngx_int_t channel_info_callback(ngx_int_t status, void *rptr, void *pd) {
ngx_http_request_t *r = nchan_get_safe_request_ptr(pd);
if(r == NULL) {
return NGX_ERROR;
}
ngx_http_finalize_request(r, nchan_response_channel_ptr_info( (nchan_channel_t *)rptr, r, 0));
return NGX_OK;
}
static ngx_int_t publish_callback(ngx_int_t status, void *rptr, ngx_http_request_t *r) {
nchan_channel_t *ch = rptr;
nchan_request_ctx_t *ctx = ngx_http_get_module_ctx(r, nchan_module);
static nchan_msg_id_t empty_msgid = {0};
//DBG("publish_callback %V owner %i status %i", ch_id, memstore_channel_owner(ch_id), status);
switch(status) {
case NCHAN_MESSAGE_QUEUED:
//message was queued successfully, but there were no subscribers to receive it.
ctx->prev_msg_id = ctx->msg_id;
ctx->msg_id = ch != NULL ? ch->last_published_msg_id : empty_msgid;
ngx_http_finalize_request(r, nchan_response_channel_ptr_info(ch, r, NGX_HTTP_ACCEPTED));
return NGX_OK;
case NCHAN_MESSAGE_RECEIVED:
//message was queued successfully, and it was already sent to at least one subscriber
ctx->prev_msg_id = ctx->msg_id;
ctx->msg_id = ch != NULL ? ch->last_published_msg_id : empty_msgid;
ngx_http_finalize_request(r, nchan_response_channel_ptr_info(ch, r, NGX_HTTP_CREATED));
return NGX_OK;
case NGX_ERROR:
case NGX_HTTP_INTERNAL_SERVER_ERROR:
//WTF?
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "nchan: error publishing message");
ctx->prev_msg_id = empty_msgid;;
ctx->msg_id = empty_msgid;
ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
default:
//for debugging, mostly. I don't expect this branch to behit during regular operation
ctx->prev_msg_id = empty_msgid;;
ctx->msg_id = empty_msgid;
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "nchan: TOTALLY UNEXPECTED error publishing message, status code %i", status);
ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_ERROR;
}
}
static ngx_int_t channel_info_callback(ngx_int_t status, void *rptr, ngx_http_request_t *r) {
ngx_http_finalize_request(r, nchan_response_channel_ptr_info( (nchan_channel_t *)rptr, r, 0));
return NGX_OK;
}
