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// Ported From https://github.com/kiwi515/ogws/blob/master/src/nw4r/ut/ut_NandFileStream.cpp
#include "nw4r/ut.h"
namespace nw4r {
namespace ut {
NW4R_UT_RTTI_DEF_DERIVED(NandFileStream, FileStream);
void NandFileStream::NandAsyncCallback_(s32 result, NANDCommandBlock *block) {
NandFileStream *self = reinterpret_cast<AsyncContext *>(block)->stream;
self->mIsBusy = false;
self->mResult = result;
if (self->mCallback != NULL) {
self->mCallback(result, self, self->mCallbackArg);
}
}
void NandFileStream::Initialize_() {
mCanRead = false;
mCanWrite = false;
mCloseOnDestroy = false;
mAllowClose = false;
mIsOpen = false;
mIsBusy = false;
mCallback = NULL;
mCallbackArg = NULL;
mResult = NAND_RESULT_OK;
mAsyncContext.stream = this;
}
NandFileStream::NandFileStream(const char *path, u32 access) {
Initialize_();
Open(path, access);
}
NandFileStream::NandFileStream(const NANDFileInfo *info, u32 access, bool close) {
Initialize_();
Open(info, access, close);
}
NandFileStream::~NandFileStream() {
if (mCloseOnDestroy) {
Close();
}
}
bool NandFileStream::Open(const char *path, u32 access) {
if (mCloseOnDestroy) {
Close();
}
mCanRead = access & NAND_ACCESS_READ;
mCanWrite = access & NAND_ACCESS_WRITE;
if (NANDOpen(path, &mAsyncContext.info, access) != NAND_RESULT_OK) {
return false;
}
if (mCanRead) {
u32 fileSize;
if (NANDGetLength(&mAsyncContext.info, &fileSize) != NAND_RESULT_OK) {
NANDClose(&mAsyncContext.info);
return false;
}
mFilePosition.SetFileSize(fileSize);
}
mFilePosition.Seek(0, SEEKORG_BEG);
mCloseOnDestroy = true;
mAllowClose = true;
mIsOpen = true;
return true;
}
bool NandFileStream::Open(const NANDFileInfo *info, u32 access, bool close) {
if (mCloseOnDestroy) {
Close();
}
mCanRead = access & NAND_ACCESS_READ;
mCanWrite = access & NAND_ACCESS_WRITE;
mAsyncContext.info = *info;
u32 fileSize;
if (mCanRead) {
if (NANDGetLength(&mAsyncContext.info, &fileSize) != NAND_RESULT_OK) {
if (close) {
NANDClose(&mAsyncContext.info);
}
return false;
}
mFilePosition.SetFileSize(fileSize);
}
mFilePosition.Seek(0, SEEKORG_BEG);
mCloseOnDestroy = false;
mAllowClose = close;
mIsOpen = true;
return true;
}
void NandFileStream::Close() {
if (mAllowClose && mIsOpen) {
NANDClose(&mAsyncContext.info);
mIsOpen = false;
}
}
s32 NandFileStream::Read(void *dst, u32 size) {
NANDSeek(&mAsyncContext.info, mFilePosition.Tell(), NAND_SEEK_BEG);
s32 result = NANDRead(&mAsyncContext.info, dst, size);
if (result > 0) {
mFilePosition.Skip(result);
}
return result;
}
bool NandFileStream::ReadAsync(void *dst, u32 size, AsyncCallback callback, void *arg) {
mCallback = callback;
mCallbackArg = arg;
mIsBusy = true;
NANDSeek(&mAsyncContext.info, mFilePosition.Tell(), NAND_SEEK_BEG);
bool success =
NANDReadAsync(&mAsyncContext.info, dst, size, NandAsyncCallback_, &mAsyncContext.block) == NAND_RESULT_OK;
if (success) {
mFilePosition.Skip(size);
} else {
mIsBusy = false;
}
return success;
}
s32 NandFileStream::Write(const void *src, u32 size) {
NANDSeek(&mAsyncContext.info, mFilePosition.Tell(), NAND_SEEK_BEG);
s32 result = NANDWrite(&mAsyncContext.info, src, size);
if (result > 0) {
mFilePosition.Append(result);
}
return result;
}
bool NandFileStream::WriteAsync(const void *src, u32 size, AsyncCallback callback, void *arg) {
mCallback = callback;
mCallbackArg = arg;
mIsBusy = true;
NANDSeek(&mAsyncContext.info, mFilePosition.Tell(), NAND_SEEK_BEG);
s32 result = NANDWriteAsync(&mAsyncContext.info, src, size, NandAsyncCallback_, &mAsyncContext.block);
if (result == NAND_RESULT_OK) {
mFilePosition.Append(size);
} else {
mIsBusy = false;
}
return result == NAND_RESULT_OK;
}
void NandFileStream::Seek(s32 offset, u32 origin) {
mFilePosition.Seek(offset, origin);
}
} // namespace ut
} // namespace nw4r
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