BlockStorage/siadrive
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Remove unnecessary mutex

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This commit is contained in:
Scott E. Graves
2017-03-31 22:40:07 -05:00
parent 7fdee0415b
commit 6917980390
1 changed files with 103 additions and 133 deletions
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236
src/siadrive_dokan_api/siadokandrive.cpp
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@@ -27,6 +27,7 @@ class SIADRIVE_DOKAN_EXPORTABLE DokanImpl
private:
typedef struct
{
HANDLE FileHandle;
SString SiaPath;
FilePath CacheFilePath;
bool Dummy;
@@ -41,7 +42,6 @@ private:
static DOKAN_OPERATIONS _dokanOps;
static DOKAN_OPTIONS _dokanOptions;
static FilePath _cacheLocation;
static std::unordered_map<ULONG64, OpenFileInfo> _openFileMap;
static std::unique_ptr<std::thread> _fileListThread;
static HANDLE _fileListStopEvent;
static CSiaFileTreePtr _siaFileTree;
@@ -63,41 +63,35 @@ private:
return ret;
}
static bool AddFileToCache(const SString& siaPath, PDOKAN_FILE_INFO dokanFileInfo)
static bool AddFileToCache(OpenFileInfo& openFileInfo, PDOKAN_FILE_INFO dokanFileInfo)
{
bool active = true;
bool ret = false;
std::thread th([&] {
FilePath tempFilePath = FilePath::GetTempDirectory();
tempFilePath.Append(GenerateSha256(siaPath) + ".siatmp");
tempFilePath.Append(GenerateSha256(openFileInfo.SiaPath) + ".siatmp");
// TODO Check cache size is large enough to hold new file
ret = ApiSuccess(_siaApi->GetRenter()->DownloadFile(siaPath, tempFilePath));
ret = ApiSuccess(_siaApi->GetRenter()->DownloadFile(openFileInfo.SiaPath, tempFilePath));
if (ret)
{
auto id = dokanFileInfo->Context;
::CloseHandle(reinterpret_cast<HANDLE>(id));
::CloseHandle(openFileInfo.FileHandle);
FilePath src(tempFilePath);
FilePath dest(GetCacheLocation(), siaPath);
FilePath dest(GetCacheLocation(), openFileInfo.SiaPath);
ret = dest.DeleteFile() && src.MoveFile(dest);
if (ret)
{
HANDLE handle = ::CreateFile(&dest[0], GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
std::lock_guard<std::mutex> l(_dokanMutex);
auto ofi = _openFileMap[id];
_openFileMap.erase(id);
if (handle == INVALID_HANDLE_VALUE)
{
ret = false;
}
else
{
ofi.Dummy = false;
dokanFileInfo->Context = reinterpret_cast<ULONG64>(handle);
_openFileMap.insert({ dokanFileInfo->Context, ofi });
openFileInfo.Dummy = false;
openFileInfo.FileHandle = handle;
}
}
else
@@ -109,9 +103,9 @@ private:
});
th.detach();
DokanResetTimeout(1000 * 60 * 5, dokanFileInfo);
while (active)
{
DokanResetTimeout(30000, dokanFileInfo);
::Sleep(10);
}
@@ -124,39 +118,33 @@ private:
return dest.CreateEmptyFile();
}
static void HandleSiaFileClose(const FilePath& filePath, const ULONG64 id, const std::uint64_t& fileSize, const bool& deleteOnClose)
static void HandleSiaFileClose(const OpenFileInfo& openFileInfo, const std::uint64_t& fileSize, const bool& deleteOnClose)
{
std::lock_guard<std::mutex> l(_dokanMutex);
auto ofi = _openFileMap.find(id);
if (ofi != _openFileMap.end())
{
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanCloseFile(ofi->second.CacheFilePath)));
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanCloseFile(openFileInfo.CacheFilePath)));
if (deleteOnClose)
{
// TODO Handle failure
_uploadManager->Remove(ofi->second.SiaPath);
_uploadManager->Remove(openFileInfo.SiaPath);
}
else
{
QueueUploadIfChanged(id, fileSize);
QueueUploadIfChanged(openFileInfo, fileSize);
}
_openFileMap.erase(id);
}
}
static void QueueUploadIfChanged(const ULONG64& id, const std::uint64_t& size)
static void QueueUploadIfChanged(const OpenFileInfo& openFileInfo, const std::uint64_t& size)
{
if (_openFileMap[id].Changed)
if (openFileInfo.Changed)
{
if (size > 0)
{
// TODO Handle error return
_uploadManager->AddOrUpdate(_openFileMap[id].SiaPath, _openFileMap[id].CacheFilePath);
_uploadManager->AddOrUpdate(openFileInfo.SiaPath, openFileInfo.CacheFilePath);
}
else
{
// Treat 0 length files as deleted in Sia - cache retains 0-length
_uploadManager->Remove(_openFileMap[id].SiaPath);
_uploadManager->Remove(openFileInfo.SiaPath);
}
}
}
@@ -294,7 +282,12 @@ private:
}
else
{
dokanFileInfo->Context = reinterpret_cast<ULONG64>(handle); // save the file handle in Context
OpenFileInfo* ofi = new OpenFileInfo();
ofi->CacheFilePath = cacheFilePath;
ofi->Dummy = false;
ofi->Changed = false;
ofi->FileHandle = handle;
dokanFileInfo->Context = reinterpret_cast<ULONG64>(ofi);
}
}
}
@@ -439,7 +432,6 @@ private:
}
else
{
dokanFileInfo->Context = reinterpret_cast<ULONG64>(handle); // save the file handle in Context
if ((creationDisposition == OPEN_ALWAYS) || (creationDisposition == CREATE_ALWAYS))
{
DWORD error = GetLastError();
@@ -449,14 +441,14 @@ private:
}
}
OpenFileInfo ofi;
ofi.SiaPath = siaPath;
ofi.CacheFilePath = cacheFilePath;
OpenFileInfo* ofi = new OpenFileInfo();
ofi->SiaPath = siaPath;
ofi->CacheFilePath = cacheFilePath;
// TODO Detect if file is read-only
ofi.Dummy = isDummy;
ofi.Changed = false;
std::lock_guard<std::mutex> l(_dokanMutex);
_openFileMap.insert({ dokanFileInfo->Context, ofi });
ofi->Dummy = isDummy;
ofi->Changed = false;
ofi->FileHandle = handle;
dokanFileInfo->Context = reinterpret_cast<ULONG64>(ofi);
}
}
}
@@ -601,22 +593,22 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
if (dokanFileInfo->Context)
{
auto id = dokanFileInfo->Context;
HANDLE handle = reinterpret_cast<HANDLE>(id);
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!dokanFileInfo->IsDirectory)
{
LARGE_INTEGER li = { 0 };
::GetFileSizeEx(handle, &li);
HandleSiaFileClose(filePath, id, li.QuadPart, dokanFileInfo->DeleteOnClose ? true : false);
::GetFileSizeEx(openFileInfo->FileHandle, &li);
HandleSiaFileClose(*openFileInfo, li.QuadPart, dokanFileInfo->DeleteOnClose ? true : false);
}
::CloseHandle(reinterpret_cast<HANDLE>(dokanFileInfo->Context));
::CloseHandle(openFileInfo->FileHandle);
delete openFileInfo;
dokanFileInfo->Context = 0;
}
}
static NTSTATUS DOKAN_CALLBACK Sia_GetFileInformation(LPCWSTR fileName, LPBY_HANDLE_FILE_INFORMATION handleFileInfo, PDOKAN_FILE_INFO dokanFileInfo)
{
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
BOOL opened = FALSE;
NTSTATUS ret = STATUS_SUCCESS;
@@ -627,10 +619,11 @@ private:
auto siaFile = siaFileTree ? siaFileTree->GetFile(siaPath) : nullptr;
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanGetFileInformation(cachePath)));
if (!siaFile && (!handle || (handle == INVALID_HANDLE_VALUE)))
HANDLE tempHandle = openFileInfo->FileHandle;
if (!siaFile && (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE)))
{
handle = ::CreateFile(&cachePath[0], GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
if (handle == INVALID_HANDLE_VALUE)
tempHandle = ::CreateFile(&cachePath[0], GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
if (tempHandle == INVALID_HANDLE_VALUE)
{
ret = DokanNtStatusFromWin32(::GetLastError());
}
@@ -642,14 +635,7 @@ private:
if (ret == STATUS_SUCCESS)
{
bool isDummy = false;
if (siaFile)
{
std::lock_guard<std::mutex> l(_fileTreeMutex);
isDummy = _openFileMap.find(dokanFileInfo->Context) != _openFileMap.end();
}
if (isDummy)
if (openFileInfo->Dummy)
{
LARGE_INTEGER li = { 0 };
li.QuadPart = siaFile->GetFileSize();
@@ -658,7 +644,7 @@ private:
handleFileInfo->nFileSizeLow = li.LowPart;
ret = STATUS_SUCCESS;
}
else if (!::GetFileInformationByHandle(handle, handleFileInfo))
else if (!::GetFileInformationByHandle(tempHandle, handleFileInfo))
{
// fileName is a root directory
// in this case, FindFirstFile can't get directory information
@@ -692,7 +678,7 @@ private:
if (opened)
{
::CloseHandle(handle);
::CloseHandle(tempHandle);
}
return ret;
@@ -761,35 +747,24 @@ private:
{
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanReadFile(filePath)));
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
bool isDummy = false;
SString siaPath;
{
std::lock_guard<std::mutex> l(_fileTreeMutex);
auto it = _openFileMap.find(dokanFileInfo->Context);
isDummy = ((it != _openFileMap.end()) && it->second.Dummy);
if (isDummy)
{
siaPath = _openFileMap[dokanFileInfo->Context].SiaPath;
}
}
if (isDummy)
if (openFileInfo->Dummy)
{
// TODO taking too long
if (!AddFileToCache(siaPath, dokanFileInfo))
if (!AddFileToCache(*openFileInfo, dokanFileInfo))
{
return STATUS_INVALID_DEVICE_STATE;
}
}
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
HANDLE tempHandle = openFileInfo->FileHandle;
BOOL opened = FALSE;
if (!handle || (handle == INVALID_HANDLE_VALUE))
if (!tempHandle || (tempHandle == INVALID_HANDLE_VALUE))
{
// TODO Need to add to cache if missing
handle = ::CreateFile(&filePath[0], GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
if (handle == INVALID_HANDLE_VALUE)
tempHandle = ::CreateFile(&filePath[0], GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
if (tempHandle == INVALID_HANDLE_VALUE)
{
DWORD error = GetLastError();
return DokanNtStatusFromWin32(error);
@@ -799,24 +774,24 @@ private:
LARGE_INTEGER distanceToMove;
distanceToMove.QuadPart = offset;
if (!::SetFilePointerEx(handle, distanceToMove, nullptr, FILE_BEGIN))
if (!::SetFilePointerEx(tempHandle, distanceToMove, nullptr, FILE_BEGIN))
{
DWORD error = GetLastError();
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
if (!::ReadFile(handle, buffer, bufferLen, readLength, nullptr))
if (!::ReadFile(tempHandle, buffer, bufferLen, readLength, nullptr))
{
DWORD error = GetLastError();
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return STATUS_SUCCESS;
}
@@ -830,15 +805,14 @@ private:
// TODO Check dummy and add to cache if not found
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanWriteFile(filePath)));
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
BOOL opened = FALSE;
// reopen the file
if (!handle || (handle == INVALID_HANDLE_VALUE))
HANDLE tempHandle = openFileInfo->FileHandle;
if (!tempHandle || (tempHandle == INVALID_HANDLE_VALUE))
{
handle = ::CreateFile(&filePath[0], GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, OPEN_EXISTING, 0, nullptr);
if (handle == INVALID_HANDLE_VALUE)
tempHandle = ::CreateFile(&filePath[0], GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, OPEN_EXISTING, 0, nullptr);
if (tempHandle == INVALID_HANDLE_VALUE)
{
DWORD error = GetLastError();
return DokanNtStatusFromWin32(error);
@@ -847,11 +821,11 @@ private:
}
LARGE_INTEGER li = { 0 };
if (!::GetFileSizeEx(handle, &li))
if (!::GetFileSizeEx(tempHandle, &li))
{
DWORD error = GetLastError();
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
@@ -859,11 +833,11 @@ private:
if (dokanFileInfo->WriteToEndOfFile)
{
LARGE_INTEGER z = {0};
if (!::SetFilePointerEx(handle, z, nullptr, FILE_END))
if (!::SetFilePointerEx(tempHandle, z, nullptr, FILE_END))
{
DWORD error = GetLastError();
if (opened)
::CloseHandle(handle);
::CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
}
@@ -876,7 +850,7 @@ private:
{
*bytesWritten = 0;
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return STATUS_SUCCESS;
}
@@ -903,31 +877,30 @@ private:
}
distanceToMove.QuadPart = offset;
if (!::SetFilePointerEx(handle, distanceToMove, nullptr, FILE_BEGIN))
if (!::SetFilePointerEx(tempHandle, distanceToMove, nullptr, FILE_BEGIN))
{
DWORD error = GetLastError();
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
}
if (::WriteFile(handle, buffer, bytesToWrite, bytesWritten, nullptr))
if (::WriteFile(tempHandle, buffer, bytesToWrite, bytesWritten, nullptr))
{
std::lock_guard<std::mutex> l(GetMutex());
_openFileMap.at(reinterpret_cast<ULONG64>(handle)).Changed = true;
openFileInfo->Changed = true;
}
else
{
DWORD error = GetLastError();
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return DokanNtStatusFromWin32(error);
}
// close the file when it is reopene bxkjuoqoa'qq d
if (opened)
CloseHandle(handle);
CloseHandle(tempHandle);
return STATUS_SUCCESS;
}
@@ -940,24 +913,24 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanSetEndOfFile(filePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
ret = STATUS_INVALID_HANDLE;
}
else
{
LARGE_INTEGER sz = { 0 };
::GetFileSizeEx(handle, &sz);
::GetFileSizeEx(openFileInfo->FileHandle, &sz);
LARGE_INTEGER offset;
offset.QuadPart = byteOffset;
if (!::SetFilePointerEx(handle, offset, nullptr, FILE_BEGIN))
if (!::SetFilePointerEx(openFileInfo->FileHandle, offset, nullptr, FILE_BEGIN))
{
DWORD error = GetLastError();
ret = DokanNtStatusFromWin32(error);
}
else if (!::SetEndOfFile(handle))
else if (!::SetEndOfFile(openFileInfo->FileHandle))
{
DWORD error = GetLastError();
ret = DokanNtStatusFromWin32(error);
@@ -965,8 +938,7 @@ private:
if (ret == STATUS_SUCCESS)
{
std::lock_guard<std::mutex> l(GetMutex());
_openFileMap.at(reinterpret_cast<ULONG64>(handle)).Changed = (offset.QuadPart != (sz.QuadPart - 1)) ;
openFileInfo->Changed = (offset.QuadPart != (sz.QuadPart - 1)) ;
}
}
@@ -976,18 +948,17 @@ private:
static void DOKAN_CALLBACK Sia_Cleanup(LPCWSTR fileName, PDOKAN_FILE_INFO dokanFileInfo)
{
FilePath filePath(GetCacheLocation(), fileName);
ULONG64 id = dokanFileInfo->DeleteOnClose;
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (dokanFileInfo->Context)
{
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!dokanFileInfo->IsDirectory)
{
LARGE_INTEGER li = { 0 };
::GetFileSizeEx(handle, &li);
HandleSiaFileClose(filePath, dokanFileInfo->Context, li.QuadPart, dokanFileInfo->DeleteOnClose ? true : false);
::GetFileSizeEx(openFileInfo->FileHandle, &li);
HandleSiaFileClose(*openFileInfo, li.QuadPart, dokanFileInfo->DeleteOnClose ? true : false);
}
::CloseHandle(handle);
::CloseHandle(openFileInfo->FileHandle);
delete openFileInfo;
dokanFileInfo->Context = 0;
}
@@ -1022,13 +993,13 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanFlushFileBuffers(filePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
return STATUS_SUCCESS;
}
if (::FlushFileBuffers(handle))
if (::FlushFileBuffers(openFileInfo->FileHandle))
{
return STATUS_SUCCESS;
}
@@ -1085,7 +1056,7 @@ private:
// TODO Check dummy and add to cache if not found
NTSTATUS ret = STATUS_SUCCESS;
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanDeleteFileW(filePath)));
@@ -1094,11 +1065,11 @@ private:
{
ret = STATUS_ACCESS_DENIED;
}
else if (handle && (handle != INVALID_HANDLE_VALUE))
else if (openFileInfo->FileHandle && (openFileInfo->FileHandle != INVALID_HANDLE_VALUE))
{
FILE_DISPOSITION_INFO fdi;
fdi.DeleteFile = dokanFileInfo->DeleteOnClose;
if (!::SetFileInformationByHandle(handle, FileDispositionInfo, &fdi, sizeof(FILE_DISPOSITION_INFO)))
if (!::SetFileInformationByHandle(openFileInfo->FileHandle, FileDispositionInfo, &fdi, sizeof(FILE_DISPOSITION_INFO)))
{
ret = DokanNtStatusFromWin32(GetLastError());
}
@@ -1115,9 +1086,9 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
FilePath newFilePath(GetCacheLocation(), NewFileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanMoveFileW(filePath, newFilePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
ret = STATUS_INVALID_HANDLE;
}
@@ -1137,7 +1108,7 @@ private:
wcscpy_s(renameInfo->FileName, len + 1, &newFilePath[0]);
BOOL result = ::SetFileInformationByHandle(handle, FileRenameInfo, renameInfo, bufferSize);
BOOL result = ::SetFileInformationByHandle(openFileInfo->FileHandle, FileRenameInfo, renameInfo, bufferSize);
free(renameInfo);
if (!result)
@@ -1232,13 +1203,13 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanSetFileSecurityW(filePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
return STATUS_INVALID_HANDLE;
}
if (!::SetUserObjectSecurity(handle, securityInfo, securityDescriptor))
if (!::SetUserObjectSecurity(openFileInfo->FileHandle, securityInfo, securityDescriptor))
{
int error = ::GetLastError();
return DokanNtStatusFromWin32(error);
@@ -1254,13 +1225,13 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanSetFileTime(filePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
return STATUS_INVALID_HANDLE;
}
if (!::SetFileTime(handle, creationTime, lastAccessTime, lastWriteTime))
if (!::SetFileTime(openFileInfo->FileHandle, creationTime, lastAccessTime, lastWriteTime))
{
DWORD error = GetLastError();
return DokanNtStatusFromWin32(error);
@@ -1276,25 +1247,25 @@ private:
FilePath filePath(GetCacheLocation(), fileName);
CEventSystem::EventSystem.NotifyEvent(CreateSystemEvent(DokanSetAllocationSize(filePath)));
HANDLE handle = reinterpret_cast<HANDLE>(dokanFileInfo->Context);
if (!handle || (handle == INVALID_HANDLE_VALUE))
auto openFileInfo = reinterpret_cast<OpenFileInfo*>(dokanFileInfo->Context);
if (!openFileInfo->FileHandle || (openFileInfo->FileHandle == INVALID_HANDLE_VALUE))
{
ret = STATUS_INVALID_HANDLE;
}
else
{
LARGE_INTEGER fileSize = { 0 };
if (::GetFileSizeEx(handle, &fileSize))
if (::GetFileSizeEx(openFileInfo->FileHandle, &fileSize))
{
if (allocSize < fileSize.QuadPart)
{
fileSize.QuadPart = allocSize;
if (!::SetFilePointerEx(handle, fileSize, nullptr, FILE_BEGIN))
if (!::SetFilePointerEx(openFileInfo->FileHandle, fileSize, nullptr, FILE_BEGIN))
{
DWORD error = GetLastError();
ret = DokanNtStatusFromWin32(error);
}
else if (!::SetEndOfFile(handle))
else if (!::SetEndOfFile(openFileInfo->FileHandle))
{
DWORD error = GetLastError();
ret = DokanNtStatusFromWin32(error);
@@ -1416,7 +1387,6 @@ HANDLE DokanImpl::_fileListStopEvent;
CSiaFileTreePtr DokanImpl::_siaFileTree;
std::mutex DokanImpl::_fileTreeMutex;
std::unique_ptr<std::thread> DokanImpl::_fileListThread;
std::unordered_map<ULONG64, DokanImpl::OpenFileInfo> DokanImpl::_openFileMap;
std::unique_ptr<std::thread> DokanImpl::_mountThread;
NTSTATUS DokanImpl::_mountStatus = STATUS_SUCCESS;
SString DokanImpl::_mountPoint;