61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
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// Copyright 2012 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef COMPONENTS_NACL_RENDERER_PLUGIN_PNACL_RESOURCES_H_
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#define COMPONENTS_NACL_RENDERER_PLUGIN_PNACL_RESOURCES_H_
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#include "components/nacl/renderer/ppb_nacl_private.h"
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#include "ppapi/cpp/completion_callback.h"
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namespace plugin {
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class Plugin;
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// PNaCl tool files / resources, which are opened by the browser.
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struct PnaclResourceEntry {
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// The name of the tool that corresponds to the opened file.
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std::string tool_name;
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// File info for the executables, after they've been opened.
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// Only valid after StartLoad() has been called, and until
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// TakeFileInfo(ResourceType) is called.
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PP_NaClFileInfo file_info;
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};
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// Loads a list of resources, providing a way to get file descriptors for
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// these resources. URLs for resources are resolved by the manifest
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// and point to PNaCl component filesystem resources.
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class PnaclResources {
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public:
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PnaclResources(Plugin* plugin, bool use_subzero);
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PnaclResources(const PnaclResources&) = delete;
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PnaclResources& operator=(const PnaclResources&) = delete;
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virtual ~PnaclResources();
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// Read the resource info JSON file. This is the first step after
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// construction; it has to be completed before StartLoad is called.
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bool ReadResourceInfo();
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// Start loading the resources.
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bool StartLoad();
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enum ResourceType { LLC, LD, SUBZERO, NUM_TYPES };
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const std::string& GetUrl(ResourceType type) const;
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PP_NaClFileInfo TakeFileInfo(ResourceType type);
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private:
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// The plugin requesting the resource loading.
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Plugin* plugin_;
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bool use_subzero_;
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PnaclResourceEntry resources_[NUM_TYPES + 1];
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};
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} // namespace plugin
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#endif // COMPONENTS_NACL_RENDERER_PLUGIN_PNACL_RESOURCES_H_
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