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HLE/FS: Implemented FSFile::OpenSubFile.

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The File class now holds a list of connected sessions along with data unique to each session.

A subfile is a window into an existing file. They have a few limitations compared to normal files:

* They can't be written to.
* They can't be flushed.
* Their size can not be changed.
* New subfiles can't be created from another subfile.
This commit is contained in:
Subv 2017-12-07 14:38:19 -05:00
parent b88ed528a3
commit c9ddd5b0ae
5 changed files with 184 additions and 28 deletions
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6
src/core/hle/service/am/am.cpp
View file

@ -909,16 +909,12 @@ void BeginImportProgram(Service::Interface* self) {
const FileSys::Path cia_path = {};
auto file =
std::make_shared<Service::FS::File>(std::make_unique<CIAFile>(media_type), cia_path);
auto sessions = Kernel::ServerSession::CreateSessionPair(file->GetName());
file->ClientConnected(std::get<Kernel::SharedPtr<Kernel::ServerSession>>(sessions));
cia_installing = true;
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
rb.Push(RESULT_SUCCESS); // No error
rb.PushCopyHandles(
Kernel::g_handle_table.Create(std::get<Kernel::SharedPtr<Kernel::ClientSession>>(sessions))
.Unwrap());
rb.PushCopyHandles(Kernel::g_handle_table.Create(file->Connect()).Unwrap());
LOG_WARNING(Service_AM, "(STUBBED) media_type=%u", static_cast<u32>(media_type));
}