ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2025-06-24 01:28:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Propagate session diag flag to core

Browse Source 
This commit restores the diag feature for selecting diagnostic output of
services provided by core. This feature became unavailable with commit
"base: remove dependency from deprecated APIs", which hard-wired the
diag flag for core services to false.

To control this feature, three possible policies can be expressed in a
routing target of init's configuration:

* Forcing silence by specifying 'diag="no"'
* Enabling diagnostics by specifying 'diag="yes"'
* Forwarding the preference of the client by omitting the 'diag'
  attribute

Fixes #3962
This commit is contained in:
Norman Feske
2020-12-02 10:30:22 +01:00
parent 36eeab6df2
commit a0fb944721
19 changed files with 63 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
repos/base/include/base/child.h
View File

@ -83,7 +83,8 @@ struct Genode::Child_policy
* \throw Service_denied
*/
virtual Route resolve_session_request(Service::Name const &,
Session_label const &) = 0;
Session_label const &,
Session::Diag) = 0;
/**
* Apply transformations to session arguments
@ -575,7 +576,8 @@ class Genode::Child : protected Rpc_object<Parent>,
try {
Child_policy::Route const route =
_child._policy.resolve_session_request(_service_name(),
label_from_args(_args.string()));
label_from_args(_args.string()),
session_diag_from_args(_args.string()));
_env_service.construct(_child, route.service);
_connection.construct(*_env_service, _child._id_space, _client_id,
_args, _child._policy.filter_session_affinity(Affinity()),

2
repos/base/include/base/local_connection.h
View File

@ -68,7 +68,7 @@ struct Genode::Local_connection_base : Noncopyable
{
enum { NUM_ATTEMPTS = 10 };
for (unsigned i = 0; i < NUM_ATTEMPTS; i++) {
_session_state.construct(service, id_space, id, label,
_session_state.construct(service, id_space, id, label, diag,
_init_args(args, resources, diag),
affinity);

4
repos/base/include/base/session_state.h
View File

@ -65,6 +65,7 @@ class Genode::Session_state : public Parent::Client, public Parent::Server
Reconstructible<Id_space<Parent::Client>::Element> _id_at_client;
Session::Label const _label;
Session::Diag const _diag;
Args _args;
Affinity _affinity;
@ -138,6 +139,7 @@ class Genode::Session_state : public Parent::Client, public Parent::Server
Id_space<Parent::Client> &client_id_space,
Parent::Client::Id client_id,
Session::Label const &label,
Session::Diag diag,
Args const &args,
Affinity const &affinity);
@ -179,6 +181,8 @@ class Genode::Session_state : public Parent::Client, public Parent::Server
Args const &args() const { return _args; }
Session::Diag diag() const { return _diag; }
Affinity const &affinity() const { return _affinity; }
void generate_session_request(Xml_generator &) const;

4
repos/base/lib/symbols/ld
View File

@ -92,8 +92,8 @@ _ZN6Genode13Registry_base7_insertERNS0_7ElementE T
_ZN6Genode13Registry_base7_removeERNS0_7ElementE T
_ZN6Genode13Registry_base9_for_eachERNS0_15Untyped_functorE T
_ZN6Genode13Session_state7destroyEv T
_ZN6Genode13Session_stateC1ERNS_7ServiceERNS_8Id_spaceINS_6Parent6ClientEEENS6_2IdERKNS_13Session_labelERKNS_6StringILm256EEERKNS_8AffinityE T
_ZN6Genode13Session_stateC2ERNS_7ServiceERNS_8Id_spaceINS_6Parent6ClientEEENS6_2IdERKNS_13Session_labelERKNS_6StringILm256EEERKNS_8AffinityE T
_ZN6Genode13Session_stateC1ERNS_7ServiceERNS_8Id_spaceINS_6Parent6ClientEEENS6_2IdERKNS_13Session_labelENS_7Session4DiagERKNS_6StringILm256EEERKNS_8AffinityE T
_ZN6Genode13Session_stateC2ERNS_7ServiceERNS_8Id_spaceINS_6Parent6ClientEEENS6_2IdERKNS_13Session_labelENS_7Session4DiagERKNS_6StringILm256EEERKNS_8AffinityE T
_ZN6Genode13Shared_objectC1ERNS_3EnvERNS_9AllocatorEPKcNS0_4BindENS0_4KeepE T
_ZN6Genode13Shared_objectC2ERNS_3EnvERNS_9AllocatorEPKcNS0_4BindENS0_4KeepE T
_ZN6Genode13Shared_objectD1Ev T

5
repos/base/src/core/main.cc
View File

@ -146,7 +146,8 @@ class Core_child : public Child_policy
Name name() const override { return "init"; }
Route resolve_session_request(Service::Name const &name,
Session_label const &label) override
Session_label const &label,
Session::Diag const diag) override
{
Service *service = nullptr;
_services.for_each([&] (Service &s) {
@ -158,7 +159,7 @@ class Core_child : public Child_policy
return Route { .service = *service,
.label = label,
.diag = Session::Diag() };
.diag = diag };
}
void init(Pd_session &session, Capability<Pd_session> cap) override

10
repos/base/src/lib/base/child.cc
View File

@ -100,13 +100,13 @@ void Child::session_sigh(Signal_context_capability sigh)
*/
Session_state &
create_session(Child_policy::Name const &child_name, Service &service,
Session_label const &label,
Session_label const &label, Session::Diag diag,
Session_state::Factory &factory, Id_space<Parent::Client> &id_space,
Parent::Client::Id id, Session_state::Args const &args,
Affinity const &affinity)
{
try {
return service.create_session(factory, id_space, id, label, args, affinity); }
return service.create_session(factory, id_space, id, label, diag, args, affinity); }
catch (Insufficient_ram_quota) {
error(child_name, " requested session with insufficient RAM quota");
@ -174,7 +174,9 @@ Session_capability Child::session(Parent::Client::Id id,
Arg_string::set_arg(argbuf, sizeof(argbuf), "ram_quota", forward_ram_quota.value);
/* may throw a 'Service_denied' exception */
Child_policy::Route route = _policy.resolve_session_request(name.string(), label);
Child_policy::Route route =
_policy.resolve_session_request(name.string(), label,
session_diag_from_args(argbuf));
Service &service = route.service;
@ -182,7 +184,7 @@ Session_capability Child::session(Parent::Client::Id id,
Arg_string::set_arg(argbuf, sizeof(argbuf), "diag", route.diag.enabled);
Session_state &session =
create_session(_policy.name(), service, route.label,
create_session(_policy.name(), service, route.label, route.diag,
_session_factory, _id_space, id, argbuf, filtered_affinity);
_policy.session_state_changed();

3
repos/base/src/lib/base/session_state.cc
View File

@ -172,6 +172,7 @@ Session_state::Session_state(Service &service,
Id_space<Parent::Client> &client_id_space,
Parent::Client::Id client_id,
Session::Label const &label,
Session::Diag const diag,
Args const &args,
Affinity const &affinity)
:
@ -179,5 +180,5 @@ Session_state::Session_state(Service &service,
_donated_ram_quota(ram_quota_from_args(args.string())),
_donated_cap_quota(cap_quota_from_args(args.string())),
_id_at_client(*this, client_id_space, client_id),
_label(label), _args(args), _affinity(affinity)
_label(label), _diag(diag), _args(args), _affinity(affinity)
{ }

5
repos/base/src/test/rm_fault/main.cc
View File

@ -230,11 +230,12 @@ class Test_child_policy : public Child_policy
}
Route resolve_session_request(Service::Name const &name,
Session_label const &label) override
Session_label const &label,
Session::Diag const diag) override
{
return Route { .service = _matching_service(name),
.label = label,
.diag = Session::Diag() };
.diag = diag };
}
};