97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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#ifndef WVCDM_CDM_CDM_HOST_FILE_H_
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#define WVCDM_CDM_CDM_HOST_FILE_H_
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#include "content_decryption_module.h"
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#include "file_store.h"
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#include "host_4_file_io_client.h"
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#include "scoped_ptr.h"
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namespace wvcdm {
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class IFileFactory;
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class IHostFile {
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public:
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virtual ~IHostFile() {}
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virtual bool Open(const std::string& name) = 0;
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virtual ssize_t Read(char* buffer, size_t bytes) = 0;
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virtual ssize_t Write(const char* buffer, size_t bytes) = 0;
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virtual bool Close() = 0;
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virtual bool Remove(const std::string& name) = 0;
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virtual ssize_t FileSize(const std::string& name) = 0;
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};
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class File1Impl : public IHostFile {
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public:
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explicit File1Impl(cdm::Host_1* const host_1) : host_1_(host_1) {}
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virtual ~File1Impl() {}
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virtual bool Open(const std::string& name) OVERRIDE;
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virtual ssize_t Read(char* buffer, size_t bytes) OVERRIDE;
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virtual ssize_t Write(const char* buffer, size_t bytes) OVERRIDE;
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virtual bool Close() OVERRIDE;
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virtual bool Remove(const std::string& name) OVERRIDE;
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virtual ssize_t FileSize(const std::string& name) OVERRIDE;
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private:
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cdm::Host_1* const host_1_;
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std::string fname_;
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};
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class File4Impl : public IHostFile {
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public:
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explicit File4Impl(cdm::Host_4* const host_4) :
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host_4_(host_4), host_4_file_io_client_(host_4) {}
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virtual ~File4Impl() {}
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virtual bool Open(const std::string& name) OVERRIDE;
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virtual ssize_t Read(char* buffer, size_t bytes) OVERRIDE;
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virtual ssize_t Write(const char* buffer, size_t bytes) OVERRIDE;
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virtual bool Close() OVERRIDE;
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virtual bool Remove(const std::string& name) OVERRIDE;
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virtual ssize_t FileSize(const std::string& name) OVERRIDE;
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private:
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cdm::Host_4* const host_4_;
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Host4FileIOClient host_4_file_io_client_;
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};
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class File::Impl {
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public:
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explicit Impl(cdm::Host_1* const host_1) :
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file_api_(new File1Impl(host_1)) {}
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explicit Impl(cdm::Host_4* const host_4) :
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file_api_(new File4Impl(host_4)) {}
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~Impl() {}
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static void RegisterFileFactory(IFileFactory* factory) { factory_ = factory; }
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virtual bool Open(const std::string& name);
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virtual ssize_t Read(char* buffer, size_t bytes);
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virtual ssize_t Write(const char* buffer, size_t bytes);
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virtual bool Close();
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virtual bool Exists(const std::string& name);
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virtual bool Remove(const std::string& name);
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virtual ssize_t FileSize(const std::string& name);
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private:
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static IFileFactory* factory_;
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friend class File;
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scoped_ptr<IHostFile> file_api_;
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};
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class IFileFactory {
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protected:
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IFileFactory() { File::Impl::RegisterFileFactory(this); }
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virtual ~IFileFactory() {}
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public:
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virtual File::Impl* NewFileImpl() = 0;
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};
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} // namespace wvcdm
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#endif // WVCDM_CDM_CDM_HOST_FILE_H_
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