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FS_User: Support FileSye::Path in a more generic way.

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added a todo to kernel archive
This commit is contained in:
bunnei 2014-11-14 00:07:02 -05:00
parent a3107a6b57
commit 3e09c07378
2 changed files with 76 additions and 42 deletions
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11
src/core/hle/kernel/archive.cpp
View file

@ -367,6 +367,17 @@ Handle CreateArchive(FileSys::Archive* backend, const std::string& name) {
* @return Opened File object
*/
Handle OpenFileFromArchive(Handle archive_handle, const FileSys::Path& path, const FileSys::Mode mode) {
// TODO(bunnei): Binary type files get a raw file pointer to the archive. Currently, we create
// the archive file handles at app loading, and then keep them persistent throughout execution.
// Archives file handles are just reused and not actually freed until emulation shut down.
// Verify if real hardware works this way, or if new handles are created each time
if (path.GetType() == FileSys::Binary)
// TODO(bunnei): FixMe - this is a hack to compensate for an incorrect FileSys backend
// design. While the functionally of this is OK, our implementation decision to separate
// normal files from archive file pointers is very likely wrong.
// See https://github.com/citra-emu/citra/issues/205
return archive_handle;
File* file = new File;
Handle handle = Kernel::g_object_pool.Create(file);

101
src/core/hle/service/fs_user.cpp
View file

@ -28,6 +28,22 @@ void Initialize(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenFile service function
* Inputs:
* 1 : Transaction
* 2 : Archive handle lower word
* 3 : Archive handle upper word
* 4 : Low path type
* 5 : Low path size
* 6 : Open flags
* 7 : Attributes
* 8 : (LowPathSize << 14) | 2
* 9 : Low path data pointer
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
void OpenFile(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -39,28 +55,16 @@ void OpenFile(Service::Interface* self) {
FileSys::Mode mode; mode.hex = cmd_buff[6];
u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
u32 filename_ptr = cmd_buff[9];
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FileSys::Char:
case FileSys::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s",
filename_type, filename_size, mode, attributes, file_string.c_str());
DEBUG_LOG(KERNEL, "path=%s, mode=%d attrs=%d", file_path.DebugStr().c_str(), mode, attributes);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -68,6 +72,25 @@ void OpenFile(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenFileDirectly service function
* Inputs:
* 1 : Transaction
* 2 : Archive ID
* 3 : Archive low path type
* 4 : Archive low path size
* 5 : File low path type
* 6 : File low path size
* 7 : Flags
* 8 : Attributes
* 9 : (ArchiveLowPathSize << 14) | 0x802
* 10 : Archive low path
* 11 : (FileLowPathSize << 14) | 2
* 12 : File low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : File handle
*/
void OpenFileDirectly(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -80,47 +103,33 @@ void OpenFileDirectly(Service::Interface* self) {
u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
u32 archivename_ptr = cmd_buff[10];
u32 filename_ptr = cmd_buff[12];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d file_type=%d file_size=%d file_mode=%d file_attrs=%d",
archivename_type, archivename_size, filename_type, filename_size, mode, attributes);
DEBUG_LOG(KERNEL, "archive_path=%s file_path=%s, mode=%d attributes=%d",
archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode, attributes);
if (archivename_type != FileSys::Empty) {
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;
}
// TODO(Link Mauve): check if we should even get a handle for the archive, and don't leak it.
// TODO(Link Mauve): Check if we should even get a handle for the archive, and don't leak it
Handle archive_handle = Kernel::OpenArchive(archive_id);
if (archive_handle) {
cmd_buff[1] = 0;
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = archive_handle;
} else {
if (!archive_handle) {
ERROR_LOG(KERNEL, "failed to get a handle for archive");
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
// TODO(Link Mauve): Check for the actual error values, this one was just chosen arbitrarily
cmd_buff[1] = -1;
return;
}
FileSys::Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FileSys::Char:
case FileSys::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_path, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_path.DebugStr().c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -205,6 +214,19 @@ void OpenDirectory(Service::Interface* self) {
DEBUG_LOG(KERNEL, "called");
}
/**
* FS_User::OpenArchive service function
* Inputs:
* 1 : Archive ID
* 2 : Archive low path type
* 3 : Archive low path size
* 4 : (LowPathSize << 14) | 2
* 5 : Archive low path
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Archive handle lower word (unused)
* 3 : Archive handle upper word (same as file handle)
*/
void OpenArchive(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
@ -212,10 +234,11 @@ void OpenArchive(Service::Interface* self) {
auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
u32 archivename_size = cmd_buff[3];
u32 archivename_ptr = cmd_buff[5];
FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
DEBUG_LOG(KERNEL, "type=%d size=%d", archivename_type, archivename_size);
DEBUG_LOG(KERNEL, "archive_path=%s", archive_path.DebugStr().c_str());
if (archivename_type != FileSys::Empty) {
if (archive_path.GetType() != FileSys::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;