-/* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
+/* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "ovsdb-error.h"
#include "ovsdb-parser.h"
#include "ovsdb.h"
+#include "poll-loop.h"
#include "reconnect.h"
#include "row.h"
#include "server.h"
struct ovsdb_jsonrpc_remote_status *);
static void ovsdb_jsonrpc_session_unlock_all(struct ovsdb_jsonrpc_session *);
static void ovsdb_jsonrpc_session_unlock__(struct ovsdb_lock_waiter *);
+static void ovsdb_jsonrpc_session_send(struct ovsdb_jsonrpc_session *,
+ struct jsonrpc_msg *);
/* Triggers. */
static void ovsdb_jsonrpc_trigger_create(struct ovsdb_jsonrpc_session *,
struct json_array *params,
const struct json *request_id);
static void ovsdb_jsonrpc_monitor_remove_all(struct ovsdb_jsonrpc_session *);
+static void ovsdb_jsonrpc_monitor_flush_all(struct ovsdb_jsonrpc_session *);
+static bool ovsdb_jsonrpc_monitor_needs_flush(struct ovsdb_jsonrpc_session *);
\f
/* JSON-RPC database server. */
struct shash_node *node, *next;
SHASH_FOR_EACH_SAFE (node, next, &svr->remotes) {
- if (!shash_find(new_remotes, node->name)) {
+ struct ovsdb_jsonrpc_remote *remote = node->data;
+ struct ovsdb_jsonrpc_options *options
+ = shash_find_data(new_remotes, node->name);
+
+ if (!options) {
VLOG_INFO("%s: remote deconfigured", node->name);
ovsdb_jsonrpc_server_del_remote(node);
- }
+ } else if (options->dscp != remote->dscp) {
+ ovsdb_jsonrpc_server_del_remote(node);
+ }
}
SHASH_FOR_EACH (node, new_remotes) {
const struct ovsdb_jsonrpc_options *options = node->data;
static void ovsdb_jsonrpc_session_wait(struct ovsdb_jsonrpc_session *);
static void ovsdb_jsonrpc_session_get_memory_usage(
const struct ovsdb_jsonrpc_session *, struct simap *usage);
-static void ovsdb_jsonrpc_session_set_options(
- struct ovsdb_jsonrpc_session *, const struct ovsdb_jsonrpc_options *);
static void ovsdb_jsonrpc_session_got_request(struct ovsdb_jsonrpc_session *,
struct jsonrpc_msg *);
static void ovsdb_jsonrpc_session_got_notify(struct ovsdb_jsonrpc_session *,
ovsdb_jsonrpc_trigger_complete_done(s);
if (!jsonrpc_session_get_backlog(s->js)) {
- struct jsonrpc_msg *msg = jsonrpc_session_recv(s->js);
+ struct jsonrpc_msg *msg;
+
+ ovsdb_jsonrpc_monitor_flush_all(s);
+
+ msg = jsonrpc_session_recv(s->js);
if (msg) {
if (msg->type == JSONRPC_REQUEST) {
ovsdb_jsonrpc_session_got_request(s, msg);
{
jsonrpc_session_wait(s->js);
if (!jsonrpc_session_get_backlog(s->js)) {
- jsonrpc_session_recv_wait(s->js);
+ if (ovsdb_jsonrpc_monitor_needs_flush(s)) {
+ poll_immediate_wake();
+ } else {
+ jsonrpc_session_recv_wait(s->js);
+ }
}
}
}
/* Sets the options for all of the JSON-RPC sessions managed by 'remote' to
- * 'options'. */
+ * 'options'.
+ *
+ * (The dscp value can't be changed directly; the caller must instead close and
+ * re-open the session.) */
static void
ovsdb_jsonrpc_session_set_all_options(
struct ovsdb_jsonrpc_remote *remote,
{
struct ovsdb_jsonrpc_session *s;
- if (remote->listener) {
- int error;
-
- error = pstream_set_dscp(remote->listener, options->dscp);
- if (error) {
- VLOG_ERR("%s: set_dscp failed %s",
- pstream_get_name(remote->listener), ovs_strerror(error));
- } else {
- remote->dscp = options->dscp;
- }
- /*
- * XXX race window between setting dscp to listening socket
- * and accepting socket. Accepted socket may have old dscp value.
- * Ignore this race window for now.
- */
- }
LIST_FOR_EACH (s, node, &remote->sessions) {
ovsdb_jsonrpc_session_set_options(s, options);
}
s = CONTAINER_OF(session, struct ovsdb_jsonrpc_session, up);
params = json_array_create_1(json_string_create(lock_name));
- jsonrpc_session_send(s->js, jsonrpc_create_notify(method, params));
+ ovsdb_jsonrpc_session_send(s, jsonrpc_create_notify(method, params));
}
static struct jsonrpc_msg *
if (reply) {
jsonrpc_msg_destroy(request);
- jsonrpc_session_send(s->js, reply);
+ ovsdb_jsonrpc_session_send(s, reply);
}
}
}
jsonrpc_msg_destroy(request);
}
+
+static void
+ovsdb_jsonrpc_session_send(struct ovsdb_jsonrpc_session *s,
+ struct jsonrpc_msg *msg)
+{
+ ovsdb_jsonrpc_monitor_flush_all(s);
+ jsonrpc_session_send(s->js, msg);
+}
\f
/* JSON-RPC database server triggers.
*
msg = jsonrpc_create_error(json_string_create("duplicate request ID"),
id);
- jsonrpc_session_send(s->js, msg);
+ ovsdb_jsonrpc_session_send(s, msg);
json_destroy(id);
json_destroy(params);
return;
reply = jsonrpc_create_error(json_string_create("canceled"),
t->id);
}
- jsonrpc_session_send(s->js, reply);
+ ovsdb_jsonrpc_session_send(s, reply);
}
json_destroy(t->id);
return true;
}
-/* Returns JSON for a <row-update> (as described in ovsdb/SPECS) for 'row'
- * within 'mt', or NULL if no row update should be sent.
+/* Returns JSON for a <row-update> (as described in RFC 7047) for 'row' within
+ * 'mt', or NULL if no row update should be sent.
*
* The caller should specify 'initial' as true if the returned JSON is going to
* be used as part of the initial reply to a "monitor" request, false if it is
}
/* Constructs and returns JSON for a <table-updates> object (as described in
- * ovsdb/SPECS) for all the outstanding changes within 'monitor', and deletes
- * all the outstanding changes from 'monitor'. Returns NULL if no update needs
- * to be sent.
+ * RFC 7047) for all the outstanding changes within 'monitor', and deletes all
+ * the outstanding changes from 'monitor'. Returns NULL if no update needs to
+ * be sent.
*
* The caller should specify 'initial' as true if the returned JSON is going to
* be used as part of the initial reply to a "monitor" request, false if it is
return json;
}
+static bool
+ovsdb_jsonrpc_monitor_needs_flush(struct ovsdb_jsonrpc_session *s)
+{
+ struct ovsdb_jsonrpc_monitor *m;
+
+ HMAP_FOR_EACH (m, node, &s->monitors) {
+ struct shash_node *node;
+
+ SHASH_FOR_EACH (node, &m->tables) {
+ struct ovsdb_jsonrpc_monitor_table *mt = node->data;
+
+ if (!hmap_is_empty(&mt->changes)) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
+static void
+ovsdb_jsonrpc_monitor_flush_all(struct ovsdb_jsonrpc_session *s)
+{
+ struct ovsdb_jsonrpc_monitor *m;
+
+ HMAP_FOR_EACH (m, node, &s->monitors) {
+ struct json *json;
+
+ json = ovsdb_jsonrpc_monitor_compose_table_update(m, false);
+ if (json) {
+ struct jsonrpc_msg *msg;
+ struct json *params;
+
+ params = json_array_create_2(json_clone(m->monitor_id), json);
+ msg = jsonrpc_create_notify("update", params);
+ jsonrpc_session_send(s->js, msg);
+ }
+ }
+}
+
static void
ovsdb_jsonrpc_monitor_init_aux(struct ovsdb_jsonrpc_monitor_aux *aux,
const struct ovsdb_jsonrpc_monitor *m)
{
struct ovsdb_jsonrpc_monitor *m = ovsdb_jsonrpc_monitor_cast(replica);
struct ovsdb_jsonrpc_monitor_aux aux;
- struct json *json;
ovsdb_jsonrpc_monitor_init_aux(&aux, m);
ovsdb_txn_for_each_change(txn, ovsdb_jsonrpc_monitor_change_cb, &aux);
- json = ovsdb_jsonrpc_monitor_compose_table_update(m, false);
- if (json) {
- struct jsonrpc_msg *msg;
- struct json *params;
-
- params = json_array_create_2(json_clone(aux.monitor->monitor_id),
- json);
- msg = jsonrpc_create_notify("update", params);
- jsonrpc_session_send(aux.monitor->session->js, msg);
- }
return NULL;
}
projects / cascardo / ovs.git / blobdiff