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authorEmmanuel Gil Peyrot <linkmauve@linkmauve.fr>2014-09-12 00:45:40 +0200
committerEmmanuel Gil Peyrot <linkmauve@linkmauve.fr>2014-09-17 16:35:46 +0200
commit19d04f3abe4427b38a04a60080f52fdf5b9ee7fe (patch)
treee1d61a73e4de9d5e202c2744ee19902ab39fc761 /src/core
parentCore: Add a passthrough backend for the filesystem, exposed as SDMC. (diff)
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Diffstat (limited to 'src/core')
-rw-r--r--src/core/hle/kernel/archive.cpp109
-rw-r--r--src/core/hle/kernel/archive.h9
2 files changed, 118 insertions, 0 deletions
diff --git a/src/core/hle/kernel/archive.cpp b/src/core/hle/kernel/archive.cpp
index 20536f40f..24b2262bc 100644
--- a/src/core/hle/kernel/archive.cpp
+++ b/src/core/hle/kernel/archive.cpp
@@ -3,9 +3,11 @@
// Refer to the license.txt file included.
#include "common/common_types.h"
+#include "common/file_util.h"
#include "common/math_util.h"
#include "core/file_sys/archive.h"
+#include "core/file_sys/archive_sdmc.h"
#include "core/hle/service/service.h"
#include "core/hle/kernel/archive.h"
@@ -108,6 +110,83 @@ public:
}
};
+class File : public Object {
+public:
+ std::string GetTypeName() const { return "File"; }
+ std::string GetName() const { return path; }
+
+ static Kernel::HandleType GetStaticHandleType() { return HandleType::File; }
+ Kernel::HandleType GetHandleType() const { return HandleType::File; }
+
+ std::string path; ///< Path of the file
+ std::unique_ptr<FileSys::File> backend; ///< File backend interface
+
+ /**
+ * Synchronize kernel object
+ * @param wait Boolean wait set if current thread should wait as a result of sync operation
+ * @return Result of operation, 0 on success, otherwise error code
+ */
+ Result SyncRequest(bool* wait) {
+ u32* cmd_buff = Service::GetCommandBuffer();
+ FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
+ switch (cmd) {
+
+ // Read from file...
+ case FileCommand::Read:
+ {
+ u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+ u32 length = cmd_buff[3];
+ u32 address = cmd_buff[5];
+ DEBUG_LOG(KERNEL, "Read %s %s: offset=0x%x length=%d address=0x%x",
+ GetTypeName().c_str(), GetName().c_str(), offset, length, address);
+ cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
+ break;
+ }
+
+ // Write to file...
+ case FileCommand::Write:
+ {
+ u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+ u32 length = cmd_buff[3];
+ u32 flush = cmd_buff[4];
+ u32 address = cmd_buff[6];
+ DEBUG_LOG(KERNEL, "Write %s %s: offset=0x%x length=%d address=0x%x, flush=0x%x",
+ GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush);
+ cmd_buff[2] = backend->Write(offset, length, flush, Memory::GetPointer(address));
+ break;
+ }
+
+ case FileCommand::GetSize:
+ {
+ DEBUG_LOG(KERNEL, "GetSize %s %s", GetTypeName().c_str(), GetName().c_str());
+ u64 size = backend->GetSize();
+ cmd_buff[2] = (u32)size;
+ cmd_buff[3] = size >> 32;
+ break;
+ }
+
+ // Unknown command...
+ default:
+ ERROR_LOG(KERNEL, "Unknown command=0x%08X!", cmd);
+ cmd_buff[1] = -1; // TODO(Link Mauve): use the correct error code for that.
+ return -1;
+ }
+ cmd_buff[1] = 0; // No error
+ return 0;
+ }
+
+ /**
+ * Wait for kernel object to synchronize
+ * @param wait Boolean wait set if current thread should wait as a result of sync operation
+ * @return Result of operation, 0 on success, otherwise error code
+ */
+ Result WaitSynchronization(bool* wait) {
+ // TODO(bunnei): ImplementMe
+ ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
+ return 0;
+ }
+};
+
////////////////////////////////////////////////////////////////////////////////////////////////////
std::map<FileSys::Archive::IdCode, Handle> g_archive_map; ///< Map of file archives by IdCode
@@ -171,9 +250,39 @@ Handle CreateArchive(FileSys::Archive* backend, const std::string& name) {
return handle;
}
+/**
+ * Open a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @param mode Mode under which to open the File
+ * @return Opened File object
+ */
+Handle OpenFileFromArchive(Handle archive_handle, const std::string& path, const FileSys::Mode mode) {
+ File* file = new File;
+ Handle handle = Kernel::g_object_pool.Create(file);
+
+ Archive* archive = Kernel::g_object_pool.GetFast<Archive>(archive_handle);
+ file->path = path;
+ file->backend = archive->backend->OpenFile(path, mode);
+
+ return handle;
+}
+
/// Initialize archives
void ArchiveInit() {
g_archive_map.clear();
+
+ // TODO(Link Mauve): Add the other archive types (see here for the known types:
+ // http://3dbrew.org/wiki/FS:OpenArchive#Archive_idcodes). Currently the only half-finished
+ // archive type is SDMC, so it is the only one getting exposed.
+
+ // TODO(Link Mauve): don't assume the path separator is '/'.
+ std::string sdmc_directory = FileUtil::GetCurrentDir() + "/userdata/sdmc";
+ auto archive = new FileSys::Archive_SDMC(sdmc_directory);
+ if (archive->Initialize())
+ CreateArchive(archive, "SDMC");
+ else
+ ERROR_LOG(KERNEL, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
}
/// Shutdown archives
diff --git a/src/core/hle/kernel/archive.h b/src/core/hle/kernel/archive.h
index 3758e7061..2629d0f26 100644
--- a/src/core/hle/kernel/archive.h
+++ b/src/core/hle/kernel/archive.h
@@ -29,6 +29,15 @@ Handle OpenArchive(FileSys::Archive::IdCode id_code);
*/
Handle CreateArchive(FileSys::Archive* backend, const std::string& name);
+/**
+ * Open a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @param mode Mode under which to open the File
+ * @return Opened File object
+ */
+Handle OpenFileFromArchive(Handle handle, const std::string& name, const FileSys::Mode mode);
+
/// Initialize archives
void ArchiveInit();