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A real fix for the sceKernelWrite issue

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Turns out, some data was just buffered.
Running Flush fixes that problem.
This commit is contained in:
Stephen Miller 2025-06-15 13:21:33 -05:00
parent 4c881f6e40
commit db19ea1622
1 changed files with 2 additions and 11 deletions
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13
src/core/libraries/kernel/file_system.cpp
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@ -294,18 +294,9 @@ s64 PS4_SYSV_ABI write(s32 fd, const void* buf, size_t nbytes) {
return result; return result;
} }
// Due to a quirk with std::fwrite
// we need to validate the returned bytes, and make sure the file size is correct.
auto expected_file_size = file->f.GetSize();
auto bytes_written = file->f.WriteRaw<u8>(buf, nbytes); auto bytes_written = file->f.WriteRaw<u8>(buf, nbytes);
expected_file_size += bytes_written; // Some written data might be buffered, run Flush to make sure all data is written properly.
auto actual_file_size = file->f.GetSize(); file->f.Flush();
if (expected_file_size != actual_file_size) {
LOG_WARNING(Kernel_Fs,
"Unexpected behavior from fwrite. Expected size {:#x}, actual size {:#x}",
expected_file_size, actual_file_size);
file->f.SetSize(expected_file_size);
}
return bytes_written; return bytes_written;
} }