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Merge pull request #712 from lioncash/fsp

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fsp_srv: Misc individual changes
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bunnei 2018-07-19 12:31:33 -07:00 committed by GitHub
commit 38b35e752b
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1 changed files with 22 additions and 17 deletions
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39
src/core/hle/service/filesystem/fsp_srv.cpp
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@ -3,6 +3,14 @@
// Refer to the license.txt file included.
#include <cinttypes>
#include <cstring>
#include <iterator>
#include <string>
#include <utility>
#include <vector>
#include "common/assert.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "common/string_util.h"
#include "core/core.h"
@ -26,7 +34,7 @@ enum class StorageId : u8 {
class IStorage final : public ServiceFramework<IStorage> {
public:
IStorage(FileSys::VirtualFile backend_)
explicit IStorage(FileSys::VirtualFile backend_)
: ServiceFramework("IStorage"), backend(std::move(backend_)) {
static const FunctionInfo functions[] = {
{0, &IStorage::Read, "Read"}, {1, nullptr, "Write"}, {2, nullptr, "Flush"},
@ -133,19 +141,19 @@ private:
return;
}
std::vector<u8> data = ctx.ReadBuffer();
std::vector<u8> actual_data(length);
const std::vector<u8> data = ctx.ReadBuffer();
ASSERT_MSG(
data.size() <= length,
static_cast<s64>(data.size()) <= length,
"Attempting to write more data than requested (requested={:016X}, actual={:016X}).",
length, data.size());
std::copy(data.begin(), data.end(), actual_data.begin());
// Write the data to the Storage backend
auto written = backend->WriteBytes(data, offset);
const auto write_size =
static_cast<std::size_t>(std::distance(data.begin(), data.begin() + length));
const std::size_t written = backend->Write(data.data(), write_size, offset);
ASSERT_MSG(written == length,
ASSERT_MSG(static_cast<s64>(written) == length,
"Could not write all bytes to file (requested={:016X}, actual={:016X}).", length,
written);
@ -223,23 +231,20 @@ private:
LOG_DEBUG(Service_FS, "called, unk=0x{:X}", unk);
// Calculate how many entries we can fit in the output buffer
u64 count_entries = ctx.GetWriteBufferSize() / sizeof(FileSys::Entry);
const u64 count_entries = ctx.GetWriteBufferSize() / sizeof(FileSys::Entry);
// Cap at total number of entries.
u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index);
const u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index);
// Read the data from the Directory backend
std::vector<FileSys::Entry> entry_data(entries.begin() + next_entry_index,
entries.begin() + next_entry_index + actual_entries);
// Determine data start and end
const auto* begin = reinterpret_cast<u8*>(entries.data() + next_entry_index);
const auto* end = reinterpret_cast<u8*>(entries.data() + next_entry_index + actual_entries);
const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
next_entry_index += actual_entries;
// Convert the data into a byte array
std::vector<u8> output(entry_data.size() * sizeof(FileSys::Entry));
std::memcpy(output.data(), entry_data.data(), output.size());
// Write the data to memory
ctx.WriteBuffer(output);
ctx.WriteBuffer(begin, range_size);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);