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DiscIO: Improve IVolume::Read32 error handling

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Callers can now check whether reads fail, either by checking the return
value or by setting the buffer to a known bad value and seeing if it stays
untouched. I've added error checks to FileSystemGCWii and Boot_BS2Emu,
but not to Boot since it doesn't check any of its other reads either.
This commit is contained in:
JosJuice 2015-10-03 13:24:13 +02:00
commit c7e747d775
6 changed files with 90 additions and 62 deletions
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Source/Core/DiscIO/Filesystem.h
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@ -49,7 +49,7 @@ public:
virtual bool ExportApploader(const std::string& _rExportFolder) const = 0;
virtual bool ExportDOL(const std::string& _rExportFolder) const = 0;
virtual const std::string GetFileName(u64 _Address) = 0;
virtual u32 GetBootDOLSize() const = 0;
virtual u64 GetBootDOLOffset() const = 0;
virtual u32 GetBootDOLSize(u64 dol_offset) const = 0;
protected: