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[Kernel] Implement File::SetPriority

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wheremyfoodat 2023-03-10 01:27:30 +02:00
parent 5966c02737
commit 2ab777fecd
3 changed files with 24 additions and 2 deletions
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5
include/fs/archive_base.hpp
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@ -91,14 +91,15 @@ struct FileSession {
FILE* fd = nullptr; // File descriptor for file sessions that require them.
FSPath path;
FSPath archivePath;
u32 priority = 0; // TODO: What does this even do
bool isOpen;
FileSession(ArchiveBase* archive, const FSPath& filePath, const FSPath& archivePath, FILE* fd, bool isOpen = true) :
archive(archive), path(filePath), archivePath(archivePath), fd(fd), isOpen(isOpen) {}
archive(archive), path(filePath), archivePath(archivePath), fd(fd), isOpen(isOpen), priority(0) {}
// For cloning a file session
FileSession(const FileSession& other) : archive(other.archive), path(other.path),
archivePath(other.archivePath), fd(other.fd), isOpen(other.isOpen) {}
archivePath(other.archivePath), fd(other.fd), isOpen(other.isOpen), priority(other.priority) {}
};
struct ArchiveSession {

1
include/kernel/kernel.hpp
View file

@ -127,6 +127,7 @@ private:
void writeFile(u32 messagePointer, Handle file);
void getFileSize(u32 messagePointer, Handle file);
void openLinkFile(u32 messagePointer, Handle file);
void setFilePriority(u32 messagePointer, Handle file);
public:
Kernel(CPU& cpu, Memory& mem, GPU& gpu);

20
src/core/kernel/file_operations.cpp
View file

@ -6,6 +6,7 @@ namespace FileOps {
Write = 0x08030102,
GetSize = 0x08040000,
Close = 0x08080000,
SetPriority = 0x080A0040,
OpenLinkFile = 0x080C0000
};
}
@ -24,6 +25,7 @@ void Kernel::handleFileOperation(u32 messagePointer, Handle file) {
case FileOps::GetSize: getFileSize(messagePointer, file); break;
case FileOps::OpenLinkFile: openLinkFile(messagePointer, file); break;
case FileOps::Read: readFile(messagePointer, file); break;
case FileOps::SetPriority: setFilePriority(messagePointer, file); break;
case FileOps::Write: writeFile(messagePointer, file); break;
default: Helpers::panic("Unknown file operation: %08X", cmd);
}
@ -182,4 +184,22 @@ void Kernel::openLinkFile(u32 messagePointer, Handle fileHandle) {
mem.write32(messagePointer + 4, Result::Success);
mem.write32(messagePointer + 12, handle);
}
void Kernel::setFilePriority(u32 messagePointer, Handle fileHandle) {
const u32 priority = mem.read32(messagePointer + 4);
logFileIO("Setting priority of file %X to %d\n", fileHandle, priority);
const auto p = getObject(fileHandle, KernelObjectType::File);
if (p == nullptr) [[unlikely]] {
Helpers::panic("Called GetFileSize on non-existent file");
}
FileSession* file = p->getData<FileSession>();
if (!file->isOpen) {
Helpers::panic("Tried to clone closed file");
}
file->priority = priority;
mem.write32(messagePointer + 4, Result::Success);
}