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genode/repos/os/src/test/dynamic_config/main.cc

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Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
/*
* \brief Test for changing configuration at runtime
* \author Norman Feske
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
* \author Martin Stein
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
* \date 2012-04-04
*/
/*
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
* Copyright (C) 2012-2017 Genode Labs GmbH
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
*
* This file is part of the Genode OS framework, which is distributed
Adjust file headers to refer to the AGPLv3
2017-02-20 13:23:52 +01:00
* under the terms of the GNU Affero General Public License version 3.
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
*/
/* Genode includes */
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
#include <base/component.h>
#include <base/attached_rom_dataspace.h>
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
using namespace Genode;
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
struct Main
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
{
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
Env &env;
Attached_rom_dataspace config { env, "config" };
Signal_handler<Main> config_handler { env.ep(), *this, &Main::handle_config };
void handle_config()
{
config.update();
try {
long counter = 1;
config.xml().sub_node("counter").value(&counter);
log("obtained counter value ", counter, " from config");
}
catch (...) { error("could not parse configuration"); }
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
}
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
2017-01-17 12:58:00 +01:00
Main(Env &env) : env(env)
{
handle_config();
config.sigh(config_handler);
Support for dynamic ROM sessions, fix #170 This patch introduces support for ROM sessions that update their provided data during the lifetime of the session. The 'Rom_session' interface had been extended with the new 'release()' and 'sigh()' functions, which are needed to support the new protocol. All ROM services have been updated to the new interface. Furthermore, the patch changes the child policy of init with regard to the handling of configuration files. The 'Init::Child' used to always provide the ROM dataspace with the child's config file via a locally implemented ROM service. However, for dynamic ROM sessions, we need to establish a session to the real supplier of the ROM data. This is achieved by using a new 'Child_policy_redirect_rom_file' policy to handle the 'configfile' rather than handling the 'configfile' case entirely within 'Child_config'. To see the new facility in action, the new 'os/run/dynamic_config.run' script provides a simple scenario. The config file of the test program is provided by a service, which generates and updates the config data at regular intervals. In addition, new support has been added to let slaves use dynamic reconfiguration. By using the new 'Child_policy_dynamic_rom_file', the configuration of a slave can be changed dynamically at runtime via the new 'configure()' function. The config is provided as plain null-terminated string (instead of a dataspace capability) because we need to buffer the config data anyway. So there is no benefit of using a dataspace. For buffering configuration data, a 'Ram_session' must be supplied. If no 'Ram_session' is specified at construction time of a 'Slave_policy', no config is supplied to the slave (which is still a common case). An example for dynamically reconfiguring a slave is provided by 'os/run/dynamic_config_slave.run'.
2012-04-04 17:07:19 +02:00
}
os/test: transition to new base API For all tests * use Component::construct instead of main * use new connection constructors with env argument * use log instead of printf For some tests * replace signal receivers with signal handlers * replace global static variables with Main class members * remove unnecessary multithreading * model test steps as classes that are independent from each other and managed by Main as constructibles * use references instead of pointers and exceptions instead of error codes * use Attached_* helpers intead of doing attach/detach manually * use helpers like String, Id_space, Registry instead of arrays and lists * make the run script suitable for automated execution and conclusion Ref #1987
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};
void Component::construct(Env &env) { static Main main(env); }
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