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service/fs: Update file size on write

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The file's size is stored in FileSessionSlot and retrieved when the game calls GetSize. However, it is not updated when the file is written to, which can possibly change the file size. Therefore, this can cause GetSize to return incorrect results.
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zhupengfei 2020-03-05 14:50:08 +08:00
parent cd46e62ad4
commit fc251b32b0
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1 changed files with 5 additions and 1 deletions
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6
src/core/hle/service/fs/file.cpp
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@ -90,7 +90,7 @@ void File::Write(Kernel::HLERequestContext& ctx) {
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2); IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
const FileSessionSlot* file = GetSessionData(ctx.Session()); FileSessionSlot* file = GetSessionData(ctx.Session());
// Subfiles can not be written to // Subfiles can not be written to
if (file->subfile) { if (file->subfile) {
@ -103,6 +103,10 @@ void File::Write(Kernel::HLERequestContext& ctx) {
std::vector<u8> data(length); std::vector<u8> data(length);
buffer.Read(data.data(), 0, data.size()); buffer.Read(data.data(), 0, data.size());
ResultVal<std::size_t> written = backend->Write(offset, data.size(), flush != 0, data.data()); ResultVal<std::size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
// Update file size
file->size = backend->GetSize();
if (written.Failed()) { if (written.Failed()) {
rb.Push(written.Code()); rb.Push(written.Code());
rb.Push<u32>(0); rb.Push<u32>(0);