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Adding explicit app reference to nxt_router_app_port_release().

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port->app field is not thread safe and should be used in main thread only.
To release port after request processing, application reference should be
obtained from corresponding request descriptor.
This commit is contained in:
Max Romanov
2021-10-28 17:46:50 +03:00
parent 1441f42b5d
commit 86138113eb
1 changed files with 8 additions and 11 deletions
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19
src/nxt_router.c
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@@ -228,8 +228,8 @@ static void nxt_router_app_port_error(nxt_task_t *task,
static void nxt_router_app_use(nxt_task_t *task, nxt_app_t *app, int i);
static void nxt_router_app_unlink(nxt_task_t *task, nxt_app_t *app);
static void nxt_router_app_port_release(nxt_task_t *task, nxt_port_t *port,
nxt_apr_action_t action);
static void nxt_router_app_port_release(nxt_task_t *task, nxt_app_t *app,
nxt_port_t *port, nxt_apr_action_t action);
static void nxt_router_app_port_get(nxt_task_t *task, nxt_app_t *app,
nxt_request_rpc_data_t *req_rpc_data);
static void nxt_router_http_request_error(nxt_task_t *task, void *obj,
@@ -583,14 +583,15 @@ nxt_request_rpc_data_unlink(nxt_task_t *task,
nxt_router_msg_cancel(task, req_rpc_data);
app = req_rpc_data->app;
if (req_rpc_data->app_port != NULL) {
nxt_router_app_port_release(task, req_rpc_data->app_port,
nxt_router_app_port_release(task, app, req_rpc_data->app_port,
req_rpc_data->apr_action);
req_rpc_data->app_port = NULL;
}
app = req_rpc_data->app;
r = req_rpc_data->request;
if (r != NULL) {
@@ -4211,7 +4212,7 @@ nxt_router_response_ready_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg,
nxt_thread_mutex_unlock(&app->mutex);
nxt_router_app_port_release(task, app_port, NXT_APR_UPGRADE);
nxt_router_app_port_release(task, app, app_port, NXT_APR_UPGRADE);
req_rpc_data->apr_action = NXT_APR_CLOSE;
nxt_debug(task, "stream #%uD upgrade", req_rpc_data->stream);
@@ -4493,7 +4494,7 @@ nxt_router_app_port_ready(nxt_task_t *task, nxt_port_recv_msg_t *msg,
nxt_router_app_shared_port_send(task, port);
nxt_router_app_port_release(task, port, NXT_APR_NEW_PORT);
nxt_router_app_port_release(task, app, port, NXT_APR_NEW_PORT);
}
@@ -4670,19 +4671,15 @@ nxt_router_app_unlink(nxt_task_t *task, nxt_app_t *app)
static void
nxt_router_app_port_release(nxt_task_t *task, nxt_port_t *port,
nxt_router_app_port_release(nxt_task_t *task, nxt_app_t *app, nxt_port_t *port,
nxt_apr_action_t action)
{
int inc_use;
uint32_t got_response, dec_requests;
nxt_app_t *app;
nxt_bool_t port_unchained, send_quit, adjust_idle_timer;
nxt_port_t *main_app_port;
nxt_assert(port != NULL);
nxt_assert(port->app != NULL);
app = port->app;
inc_use = 0;
got_response = 0;