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protocol-native: footer pre_demarshal must come first

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Message footer should be handled before attempting to find the object
the main message is sent to / checking permissions, because it is not
aimed at a specific object.  E.g. the registry generation updates should
be handled regardless of whether the main message is valid or not,
because the updates will not be re-sent.

Fixes registry generation updates sometimes going missing.
This commit is contained in:
Pauli Virtanen 2022-02-26 00:31:33 +02:00 • committed by Wim Taymans
parent b9b57d32d5
commit a9accd1668
3 changed files with 44 additions and 42 deletions
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48
src/modules/module-protocol-native/protocol-footer.c
View file

@ -71,80 +71,80 @@ static void end_footer(struct footer_builder *fb)
spa_pod_builder_pop(fb->builder, &fb->outer);
}
void marshal_proxy_footers(struct footer_proxy_global_state *state, struct pw_proxy *proxy,
void marshal_core_footers(struct footer_core_global_state *state, struct pw_core *core,
struct spa_pod_builder *builder)
{
struct footer_builder fb = FOOTER_BUILDER_INIT(builder);
if (proxy->core->recv_generation != state->last_recv_generation) {
state->last_recv_generation = proxy->core->recv_generation;
if (core->recv_generation != state->last_recv_generation) {
state->last_recv_generation = core->recv_generation;
pw_log_trace("core %p: send client registry generation:%"PRIu64,
proxy->core, proxy->core->recv_generation);
core, core->recv_generation);
start_footer_entry(&fb, FOOTER_RESOURCE_OPCODE_GENERATION);
spa_pod_builder_long(fb.builder, proxy->core->recv_generation);
start_footer_entry(&fb, FOOTER_CLIENT_OPCODE_GENERATION);
spa_pod_builder_long(fb.builder, core->recv_generation);
end_footer_entry(&fb);
}
end_footer(&fb);
}
void marshal_resource_footers(struct footer_resource_global_state *state, struct pw_resource *resource,
void marshal_client_footers(struct footer_client_global_state *state, struct pw_impl_client *client,
struct spa_pod_builder *builder)
{
struct footer_builder fb = FOOTER_BUILDER_INIT(builder);
if (resource->context->generation != state->last_sent_generation) {
state->last_sent_generation = resource->context->generation;
if (client->context->generation != state->last_sent_generation) {
state->last_sent_generation = client->context->generation;
pw_log_trace("impl-client %p: send server registry generation:%"PRIu64,
resource->client, resource->context->generation);
client, client->context->generation);
start_footer_entry(&fb, FOOTER_RESOURCE_OPCODE_GENERATION);
spa_pod_builder_long(fb.builder, resource->context->generation);
start_footer_entry(&fb, FOOTER_CORE_OPCODE_GENERATION);
spa_pod_builder_long(fb.builder, client->context->generation);
end_footer_entry(&fb);
}
end_footer(&fb);
}
int demarshal_proxy_generation(void *object, struct spa_pod_parser *parser)
int demarshal_core_generation(void *object, struct spa_pod_parser *parser)
{
struct pw_proxy *proxy = object;
struct pw_core *core = object;
int64_t generation;
if (spa_pod_parser_get_long(parser, &generation) < 0)
return -EINVAL;
proxy->core->recv_generation = (uint64_t)generation;
core->recv_generation = (uint64_t)generation;
pw_log_trace("core %p: recv server registry generation:%"PRIu64,
proxy->core, generation);
core->core, generation);
return 0;
}
int demarshal_resource_generation(void *object, struct spa_pod_parser *parser)
int demarshal_client_generation(void *object, struct spa_pod_parser *parser)
{
struct pw_resource *resource = object;
struct pw_impl_client *client = object;
int64_t generation;
if (spa_pod_parser_get_long(parser, &generation) < 0)
return -EINVAL;
resource->client->recv_generation = (uint64_t)generation;
client->recv_generation = (uint64_t)generation;
pw_log_trace("impl-client %p: recv client registry generation:%"PRIu64,
resource->client, generation);
client, generation);
return 0;
}
const struct footer_demarshal footer_proxy_demarshal[FOOTER_PROXY_OPCODE_LAST] = {
[FOOTER_PROXY_OPCODE_GENERATION] = (struct footer_demarshal){ .demarshal = demarshal_proxy_generation },
const struct footer_demarshal footer_core_demarshal[FOOTER_CORE_OPCODE_LAST] = {
[FOOTER_CORE_OPCODE_GENERATION] = (struct footer_demarshal){ .demarshal = demarshal_core_generation },
};
const struct footer_demarshal footer_resource_demarshal[FOOTER_RESOURCE_OPCODE_LAST] = {
[FOOTER_RESOURCE_OPCODE_GENERATION] = (struct footer_demarshal){ .demarshal = demarshal_resource_generation },
const struct footer_demarshal footer_client_demarshal[FOOTER_CLIENT_OPCODE_LAST] = {
[FOOTER_CLIENT_OPCODE_GENERATION] = (struct footer_demarshal){ .demarshal = demarshal_client_generation },
};

20
src/modules/module-protocol-native/protocol-footer.h
View file

@ -30,20 +30,20 @@
*/
enum {
FOOTER_PROXY_OPCODE_GENERATION = 0,
FOOTER_PROXY_OPCODE_LAST
FOOTER_CORE_OPCODE_GENERATION = 0,
FOOTER_CORE_OPCODE_LAST
};
enum {
FOOTER_RESOURCE_OPCODE_GENERATION = 0,
FOOTER_RESOURCE_OPCODE_LAST
FOOTER_CLIENT_OPCODE_GENERATION = 0,
FOOTER_CLIENT_OPCODE_LAST
};
struct footer_proxy_global_state {
struct footer_core_global_state {
uint64_t last_recv_generation;
};
struct footer_resource_global_state {
struct footer_client_global_state {
uint64_t last_sent_generation;
};
@ -51,10 +51,10 @@ struct footer_demarshal {
int (*demarshal)(void *object, struct spa_pod_parser *parser);
};
extern const struct footer_demarshal footer_proxy_demarshal[FOOTER_PROXY_OPCODE_LAST];
extern const struct footer_demarshal footer_resource_demarshal[FOOTER_RESOURCE_OPCODE_LAST];
extern const struct footer_demarshal footer_core_demarshal[FOOTER_CORE_OPCODE_LAST];
extern const struct footer_demarshal footer_client_demarshal[FOOTER_CLIENT_OPCODE_LAST];
void marshal_proxy_footers(struct footer_proxy_global_state *state, struct pw_proxy *proxy,
void marshal_core_footers(struct footer_core_global_state *state, struct pw_core *core,
struct spa_pod_builder *builder);
void marshal_resource_footers(struct footer_resource_global_state *state, struct pw_resource *resource,
void marshal_client_footers(struct footer_client_global_state *state, struct pw_impl_client *client,
struct spa_pod_builder *builder);