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https://github.com/libretro/ppsspp.git
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3c3596dbf2
Since the majority of the code is using ReadAt API already, map this to a `readp` "syscall" which does not mutate any state about the file descriptor therefore making it fairly safe multi-threading wise. This allows to get rid of read-time mutexes in RamCachedFileLoader and therefore fixes #9803
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#pragma once
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#include "Common/CommonTypes.h"
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#include "Core/Loaders.h"
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class RetryingFileLoader : public FileLoader {
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public:
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RetryingFileLoader(FileLoader *backend);
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~RetryingFileLoader() override;
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bool Exists() override;
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bool ExistsFast() override;
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bool IsDirectory() override;
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s64 FileSize() override;
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std::string Path() const override;
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size_t ReadAt(s64 absolutePos, size_t bytes, size_t count, void *data, Flags flags = Flags::NONE) override {
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return ReadAt(absolutePos, bytes * count, data, flags) / bytes;
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}
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size_t ReadAt(s64 absolutePos, size_t bytes, void *data, Flags flags = Flags::NONE) override;
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private:
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enum {
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MAX_RETRIES = 3,
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};
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FileLoader *backend_;
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};
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