89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
/*
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* \brief Environment initialization
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* \author Norman Feske
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* \author Christian Helmuth
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* \date 2006-07-27
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*/
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/*
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* Copyright (C) 2006-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#include <base/internal/platform_env.h>
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#include <base/internal/globals.h>
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#include <base/internal/native_env.h>
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#include <base/connection.h>
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#include <base/service.h>
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#include <hw_native_pd/client.h>
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namespace Genode {
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/*
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* Request pointer to static environment of the Genode application
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*/
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Env_deprecated *env_deprecated()
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{
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/*
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* By placing the environment as static object here, we ensure that its
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* constructor gets called when this function is used the first time.
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*/
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static Genode::Platform_env _env;
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return &_env;
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}
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}
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using Native_pd_capability = Genode::Capability<Genode::Pd_session::Native_pd>;
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static Native_pd_capability native_pd_cap;
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void Genode::init_parent_resource_requests(Genode::Env & env)
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{
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/**
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* Catch up asynchronous resource request and notification
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* mechanism construction of the expanding parent environment
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*/
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using Parent = Expanding_parent_client;
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static_cast<Parent*>(&env.parent())->init_fallback_signal_handling();
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native_pd_cap = env.pd().native_pd();
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}
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void Genode::upgrade_capability_slab()
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{
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if (!native_pd_cap.valid()) {
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Genode::error("Cannot upgrade capability slab "
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"not initialized appropriatedly");
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return;
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}
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auto request_resources_from_parent = [&] (Ram_quota ram, Cap_quota caps)
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{
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/*
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* The call of 'resource_request' is handled synchronously by
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* 'Expanding_parent_client'.
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*/
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String<100> const args("ram_quota=", ram, ", cap_quota=", caps);
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internal_env().parent().resource_request(args.string());
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};
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retry<Genode::Out_of_caps>(
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[&] () {
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retry<Genode::Out_of_ram>(
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[&] () {
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Genode::Hw_native_pd_client pd(native_pd_cap);
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pd.upgrade_cap_slab();
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},
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[&] () {
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request_resources_from_parent(Ram_quota{8192}, Cap_quota{0});
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});
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},
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[&] () {
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request_resources_from_parent(Ram_quota{0}, Cap_quota{2});
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});
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}
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