From 96f0e32f836b19edb3d14ce4f87a7aed1ac6a8e1 Mon Sep 17 00:00:00 2001 From: Subv Date: Mon, 28 Dec 2015 10:03:09 -0500 Subject: HLE/FS: Return the proper error codes on file Read/Write operations. These operations are limited by the open flags specified while opening the file. --- src/core/file_sys/disk_archive.cpp | 14 ++++++++++---- src/core/file_sys/disk_archive.h | 4 ++-- src/core/file_sys/file_backend.h | 9 +++++---- src/core/file_sys/ivfc_archive.cpp | 9 +++++---- src/core/file_sys/ivfc_archive.h | 4 ++-- 5 files changed, 24 insertions(+), 16 deletions(-) (limited to 'src/core/file_sys') diff --git a/src/core/file_sys/disk_archive.cpp b/src/core/file_sys/disk_archive.cpp index 0c55a4863..2dca895fd 100644 --- a/src/core/file_sys/disk_archive.cpp +++ b/src/core/file_sys/disk_archive.cpp @@ -124,17 +124,23 @@ bool DiskFile::Open() { return file->IsOpen(); } -size_t DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const { +ResultVal DiskFile::Read(const u64 offset, const size_t length, u8* buffer) const { + if (!mode.read_flag && !mode.write_flag) + return ResultCode(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS, ErrorSummary::Canceled, ErrorLevel::Status); + file->Seek(offset, SEEK_SET); - return file->ReadBytes(buffer, length); + return MakeResult(file->ReadBytes(buffer, length)); } -size_t DiskFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const { +ResultVal DiskFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const { + if (!mode.write_flag) + return ResultCode(ErrorDescription::FS_InvalidOpenFlags, ErrorModule::FS, ErrorSummary::Canceled, ErrorLevel::Status); + file->Seek(offset, SEEK_SET); size_t written = file->WriteBytes(buffer, length); if (flush) file->Flush(); - return written; + return MakeResult(written); } u64 DiskFile::GetSize() const { diff --git a/src/core/file_sys/disk_archive.h b/src/core/file_sys/disk_archive.h index c0a3d3f7b..96d86ad21 100644 --- a/src/core/file_sys/disk_archive.h +++ b/src/core/file_sys/disk_archive.h @@ -55,8 +55,8 @@ public: DiskFile(const DiskArchive& archive, const Path& path, const Mode mode); bool Open() override; - size_t Read(u64 offset, size_t length, u8* buffer) const override; - size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; + ResultVal Read(u64 offset, size_t length, u8* buffer) const override; + ResultVal Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; u64 GetSize() const override; bool SetSize(u64 size) const override; bool Close() const override; diff --git a/src/core/file_sys/file_backend.h b/src/core/file_sys/file_backend.h index df7165df3..21864a73c 100644 --- a/src/core/file_sys/file_backend.h +++ b/src/core/file_sys/file_backend.h @@ -7,6 +7,7 @@ #include #include "common/common_types.h" +#include "core/hle/result.h" //////////////////////////////////////////////////////////////////////////////////////////////////// // FileSys namespace @@ -29,9 +30,9 @@ public: * @param offset Offset in bytes to start reading data from * @param length Length in bytes of data to read from file * @param buffer Buffer to read data into - * @return Number of bytes read + * @return Number of bytes read, or error code */ - virtual size_t Read(u64 offset, size_t length, u8* buffer) const = 0; + virtual ResultVal Read(u64 offset, size_t length, u8* buffer) const = 0; /** * Write data to the file @@ -39,9 +40,9 @@ public: * @param length Length in bytes of data to write to file * @param flush The flush parameters (0 == do not flush) * @param buffer Buffer to read data from - * @return Number of bytes written + * @return Number of bytes written, or error code */ - virtual size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const = 0; + virtual ResultVal Write(u64 offset, size_t length, bool flush, const u8* buffer) const = 0; /** * Get the size of the file in bytes diff --git a/src/core/file_sys/ivfc_archive.cpp b/src/core/file_sys/ivfc_archive.cpp index f2f96ef1a..e7b37e09d 100644 --- a/src/core/file_sys/ivfc_archive.cpp +++ b/src/core/file_sys/ivfc_archive.cpp @@ -68,17 +68,18 @@ u64 IVFCArchive::GetFreeBytes() const { //////////////////////////////////////////////////////////////////////////////////////////////////// -size_t IVFCFile::Read(const u64 offset, const size_t length, u8* buffer) const { +ResultVal IVFCFile::Read(const u64 offset, const size_t length, u8* buffer) const { LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length); romfs_file->Seek(data_offset + offset, SEEK_SET); size_t read_length = (size_t)std::min((u64)length, data_size - offset); - return romfs_file->ReadBytes(buffer, read_length); + return MakeResult(romfs_file->ReadBytes(buffer, read_length)); } -size_t IVFCFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const { +ResultVal IVFCFile::Write(const u64 offset, const size_t length, const bool flush, const u8* buffer) const { LOG_ERROR(Service_FS, "Attempted to write to IVFC file"); - return 0; + // TODO(Subv): Find error code + return MakeResult(0); } u64 IVFCFile::GetSize() const { diff --git a/src/core/file_sys/ivfc_archive.h b/src/core/file_sys/ivfc_archive.h index 5d3a5b61e..acc7e60f5 100644 --- a/src/core/file_sys/ivfc_archive.h +++ b/src/core/file_sys/ivfc_archive.h @@ -56,8 +56,8 @@ public: : romfs_file(file), data_offset(offset), data_size(size) {} bool Open() override { return true; } - size_t Read(u64 offset, size_t length, u8* buffer) const override; - size_t Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; + ResultVal Read(u64 offset, size_t length, u8* buffer) const override; + ResultVal Write(u64 offset, size_t length, bool flush, const u8* buffer) const override; u64 GetSize() const override; bool SetSize(u64 size) const override; bool Close() const override { return false; } -- cgit v1.2.3