82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
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// Copyright 2013 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_PNACL_TRANSLATION_RESOURCE_HOST_H_
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#define COMPONENTS_NACL_RENDERER_PNACL_TRANSLATION_RESOURCE_HOST_H_
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#include <stdint.h>
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#include <map>
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#include "base/functional/callback.h"
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#include "ipc/ipc_platform_file.h"
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#include "ipc/message_filter.h"
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#include "ppapi/c/pp_bool.h"
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#include "ppapi/c/pp_instance.h"
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#include "ppapi/c/private/pp_file_handle.h"
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namespace base {
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class SingleThreadTaskRunner;
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}
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namespace nacl {
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struct PnaclCacheInfo;
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}
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// A class to keep track of requests made to the browser for resources that the
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// PNaCl translator needs (e.g. descriptors for the translator nexes, temp
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// files, and cached translations).
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// "Resource" might not be the best name for the various things that pnacl
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// needs from the browser since "Resource" is a Pepper thing...
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class PnaclTranslationResourceHost : public IPC::MessageFilter {
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public:
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typedef base::OnceCallback<void(int32_t, bool, PP_FileHandle)>
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RequestNexeFdCallback;
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explicit PnaclTranslationResourceHost(
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scoped_refptr<base::SingleThreadTaskRunner> io_task_runner);
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PnaclTranslationResourceHost(const PnaclTranslationResourceHost&) = delete;
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PnaclTranslationResourceHost& operator=(const PnaclTranslationResourceHost&) =
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delete;
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void RequestNexeFd(PP_Instance instance,
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const nacl::PnaclCacheInfo& cache_info,
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RequestNexeFdCallback callback);
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void ReportTranslationFinished(PP_Instance instance, PP_Bool success);
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protected:
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~PnaclTranslationResourceHost() override;
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private:
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// Maps the instance with an outstanding cache request to the info
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// about that request.
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typedef std::map<PP_Instance, RequestNexeFdCallback> CacheRequestInfoMap;
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// IPC::MessageFilter implementation.
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bool OnMessageReceived(const IPC::Message& message) override;
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void OnFilterAdded(IPC::Channel* channel) override;
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void OnFilterRemoved() override;
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void OnChannelClosing() override;
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void SendRequestNexeFd(PP_Instance instance,
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const nacl::PnaclCacheInfo& cache_info,
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RequestNexeFdCallback callback);
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void SendReportTranslationFinished(PP_Instance instance,
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PP_Bool success);
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void OnNexeTempFileReply(PP_Instance instance,
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bool is_hit,
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IPC::PlatformFileForTransit file);
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void CleanupCacheRequests();
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scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
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// Should be accessed on the io thread.
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IPC::Sender* sender_;
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CacheRequestInfoMap pending_cache_requests_;
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};
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#endif // COMPONENTS_NACL_RENDERER_PNACL_TRANSLATION_RESOURCE_HOST_H_
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