Files
Xenia-Canary/src/xenia/vfs/devices/stfs_container_entry.cc
2015-06-27 13:31:21 -07:00

99 lines
3.3 KiB
C++

/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2014 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include "xenia/vfs/devices/stfs_container_entry.h"
#include "xenia/base/math.h"
#include "xenia/vfs/devices/stfs_container_file.h"
namespace xe {
namespace vfs {
STFSContainerEntry::STFSContainerEntry(Device* device, const char* path,
MappedMemory* mmap,
STFSEntry* stfs_entry)
: Entry(device, path),
mmap_(mmap),
stfs_entry_(stfs_entry),
it_(stfs_entry_->children.begin()) {}
STFSContainerEntry::~STFSContainerEntry() = default;
X_STATUS STFSContainerEntry::QueryInfo(
X_FILE_NETWORK_OPEN_INFORMATION* out_info) {
assert_not_null(out_info);
out_info->creation_time = stfs_entry_->update_timestamp;
out_info->last_access_time = stfs_entry_->access_timestamp;
out_info->last_write_time = stfs_entry_->update_timestamp;
out_info->change_time = stfs_entry_->update_timestamp;
out_info->allocation_size = xe::round_up(stfs_entry_->size, 4096);
out_info->end_of_file = stfs_entry_->size;
out_info->attributes = stfs_entry_->attributes;
return X_STATUS_SUCCESS;
}
X_STATUS STFSContainerEntry::QueryDirectory(
X_FILE_DIRECTORY_INFORMATION* out_info, size_t length,
const char* file_name, bool restart) {
assert_not_null(out_info);
STFSEntry* entry(nullptr);
if (file_name != nullptr) {
// Only queries in the current directory are supported for now
assert_true(std::strchr(file_name, '\\') == nullptr);
find_engine_.SetRule(file_name);
// Always restart the search?
it_ = stfs_entry_->children.begin();
entry = stfs_entry_->GetChild(find_engine_, it_);
if (!entry) {
return X_STATUS_NO_SUCH_FILE;
}
} else {
if (restart) {
it_ = stfs_entry_->children.begin();
}
entry = stfs_entry_->GetChild(find_engine_, it_);
if (!entry) {
return X_STATUS_NO_SUCH_FILE;
}
auto end = (uint8_t*)out_info + length;
auto entry_name = entry->name;
if (((uint8_t*)&out_info->file_name[0]) + entry_name.size() > end) {
return X_STATUS_NO_SUCH_FILE;
}
}
out_info->file_index = 0xCDCDCDCD;
out_info->creation_time = entry->update_timestamp;
out_info->last_access_time = entry->access_timestamp;
out_info->last_write_time = entry->update_timestamp;
out_info->change_time = entry->update_timestamp;
out_info->end_of_file = entry->size;
out_info->allocation_size = xe::round_up(entry->size, 4096);
out_info->attributes = entry->attributes;
out_info->file_name_length = static_cast<uint32_t>(entry->name.size());
memcpy(out_info->file_name, entry->name.c_str(), entry->name.size());
return X_STATUS_SUCCESS;
}
X_STATUS STFSContainerEntry::Open(KernelState* kernel_state, Mode mode,
bool async, XFile** out_file) {
*out_file = new STFSContainerFile(kernel_state, mode, this);
return X_STATUS_SUCCESS;
}
} // namespace vfs
} // namespace xe