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DiscIO: Use std::string_view in FileSystem::FindFileInfo

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...and in the functions that call it.
This commit is contained in:
JosJuice
2019-05-29 08:16:12 +02:00
parent 5fb56505b2
commit d4b069f458
8 changed files with 35 additions and 21 deletions
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4
Source/Core/DiscIO/DiscExtractor.cpp
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@ -69,7 +69,7 @@ u64 ReadFile(const Volume& volume, const Partition& partition, const FileInfo* f
return read_length;
}
u64 ReadFile(const Volume& volume, const Partition& partition, const std::string& path, u8* buffer,
u64 ReadFile(const Volume& volume, const Partition& partition, std::string_view path, u8* buffer,
u64 max_buffer_size, u64 offset_in_file)
{
const FileSystem* file_system = volume.GetFileSystem(partition);
@ -117,7 +117,7 @@ bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo
export_filename);
}
bool ExportFile(const Volume& volume, const Partition& partition, const std::string& path,
bool ExportFile(const Volume& volume, const Partition& partition, std::string_view path,
const std::string& export_filename)
{
const FileSystem* file_system = volume.GetFileSystem(partition);

6
Source/Core/DiscIO/DiscExtractor.h
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@ -6,6 +6,8 @@
#include <functional>
#include <optional>
#include <string>
#include <string_view>
#include "Common/CommonTypes.h"
@ -24,13 +26,13 @@ std::string NameForPartitionType(u32 partition_type, bool include_prefix);
u64 ReadFile(const Volume& volume, const Partition& partition, const FileInfo* file_info,
u8* buffer, u64 max_buffer_size, u64 offset_in_file = 0);
u64 ReadFile(const Volume& volume, const Partition& partition, const std::string& path, u8* buffer,
u64 ReadFile(const Volume& volume, const Partition& partition, std::string_view path, u8* buffer,
u64 max_buffer_size, u64 offset_in_file = 0);
bool ExportData(const Volume& volume, const Partition& partition, u64 offset, u64 size,
const std::string& export_filename);
bool ExportFile(const Volume& volume, const Partition& partition, const FileInfo* file_info,
const std::string& export_filename);
bool ExportFile(const Volume& volume, const Partition& partition, const std::string& path,
bool ExportFile(const Volume& volume, const Partition& partition, std::string_view path,
const std::string& export_filename);
// update_progress is called once for each child (file or directory).

16
Source/Core/DiscIO/FileSystemGCWii.cpp
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@ -10,6 +10,7 @@
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "Common/CommonFuncs.h"
@ -257,7 +258,7 @@ const FileInfo& FileSystemGCWii::GetRoot() const
return m_root;
}
std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(const std::string& path) const
std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(std::string_view path) const
{
if (!IsValid())
return nullptr;
@ -265,7 +266,7 @@ std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(const std::string& path)
return FindFileInfo(path, m_root);
}
std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(const std::string& path,
std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(std::string_view path,
const FileInfo& file_info) const
{
// Given a path like "directory1/directory2/fileA.bin", this function will
@ -276,12 +277,17 @@ std::unique_ptr<FileInfo> FileSystemGCWii::FindFileInfo(const std::string& path,
return file_info.clone(); // We're done
const size_t name_end = path.find('/', name_start);
const std::string name = path.substr(name_start, name_end - name_start);
const std::string rest_of_path = (name_end != std::string::npos) ? path.substr(name_end + 1) : "";
const std::string_view name = path.substr(name_start, name_end - name_start);
const std::string_view rest_of_path =
(name_end != std::string::npos) ? path.substr(name_end + 1) : "";
for (const FileInfo& child : file_info)
{
if (!strcasecmp(child.GetName().c_str(), name.c_str()))
const std::string child_name = child.GetName();
// We need case insensitive comparison since some games have OPENING.BNR instead of opening.bnr
if (child_name.size() == name.size() &&
!strncasecmp(child_name.data(), name.data(), name.size()))
{
// A match is found. The rest of the path is passed on to finish the search.
std::unique_ptr<FileInfo> result = FindFileInfo(rest_of_path, child);

5
Source/Core/DiscIO/FileSystemGCWii.h
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@ -9,6 +9,7 @@
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "Common/CommonTypes.h"
@ -90,7 +91,7 @@ public:
bool IsValid() const override { return m_valid; }
const FileInfo& GetRoot() const override;
std::unique_ptr<FileInfo> FindFileInfo(const std::string& path) const override;
std::unique_ptr<FileInfo> FindFileInfo(std::string_view path) const override;
std::unique_ptr<FileInfo> FindFileInfo(u64 disc_offset) const override;
private:
@ -100,7 +101,7 @@ private:
// Maps the end offset of files to FST indexes
mutable std::map<u64, u32> m_offset_file_info_cache;
std::unique_ptr<FileInfo> FindFileInfo(const std::string& path, const FileInfo& file_info) const;
std::unique_ptr<FileInfo> FindFileInfo(std::string_view path, const FileInfo& file_info) const;
};
} // namespace DiscIO

3
Source/Core/DiscIO/Filesystem.h
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@ -8,6 +8,7 @@
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "Common/CommonTypes.h"
@ -117,7 +118,7 @@ public:
// are only valid for as long as the file system object is valid.
virtual const FileInfo& GetRoot() const = 0;
// Returns nullptr if not found
virtual std::unique_ptr<FileInfo> FindFileInfo(const std::string& path) const = 0;
virtual std::unique_ptr<FileInfo> FindFileInfo(std::string_view path) const = 0;
// Returns nullptr if not found
virtual std::unique_ptr<FileInfo> FindFileInfo(u64 disc_offset) const = 0;
};

5
Source/Core/DiscIO/VolumeFileBlobReader.cpp
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@ -4,6 +4,9 @@
#include "DiscIO/VolumeFileBlobReader.h"
#include <memory>
#include <string_view>
#include "DiscIO/Filesystem.h"
#include "DiscIO/Volume.h"
@ -11,7 +14,7 @@ namespace DiscIO
{
std::unique_ptr<VolumeFileBlobReader> VolumeFileBlobReader::Create(const Volume& volume,
const Partition& partition,
const std::string& file_path)
std::string_view file_path)
{
const FileSystem* file_system = volume.GetFileSystem(partition);
if (!file_system)

4
Source/Core/DiscIO/VolumeFileBlobReader.h
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@ -5,7 +5,7 @@
#pragma once
#include <memory>
#include <string>
#include <string_view>
#include "Common/CommonTypes.h"
#include "DiscIO/Blob.h"
@ -20,7 +20,7 @@ class VolumeFileBlobReader final : public BlobReader
{
public:
static std::unique_ptr<VolumeFileBlobReader>
Create(const Volume& volume, const Partition& partition, const std::string& file_path);
Create(const Volume& volume, const Partition& partition, std::string_view file_path);
BlobType GetBlobType() const override { return BlobType::PLAIN; }
u64 GetRawSize() const override;