public PosixTempMemoryMapPager(StorageEnvironmentOptions options, VoronPathSetting file, long?initialFileSize = null)
: base(options, canPrefetchAhead: false)
{
_options = options;
FileName = file;
PosixHelper.EnsurePathExists(file.FullPath);
_fd = Syscall.open(FileName.FullPath, OpenFlags.O_RDWR | PerPlatformValues.OpenFlags.O_CREAT | PerPlatformValues.OpenFlags.O_EXCL,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "Cannot open " + FileName);
}
DeleteOnClose = true;
SysPageSize = Syscall.sysconf(PerPlatformValues.SysconfNames._SC_PAGESIZE);
if (SysPageSize <= 0) // i.e. -1 because _SC_PAGESIZE defined differently on various platforms
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "Got SysPageSize <= 0 for " + FileName);
}
_totalAllocationSize = NearestSizeToPageSize(initialFileSize ?? _totalAllocationSize);
PosixHelper.AllocateFileSpace(_options, _fd, _totalAllocationSize, FileName.FullPath);
NumberOfAllocatedPages = _totalAllocationSize / Constants.Storage.PageSize;
SetPagerState(CreatePagerState());
}
public PosixTempMemoryMapPager(int pageSize, string file, long?initialFileSize = null)
: base(pageSize)
{
_file = file;
PosixHelper.EnsurePathExists(file);
_fd = Syscall.open(_file, OpenFlags.O_RDWR | OpenFlags.O_CREAT | OpenFlags.O_EXCL,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
PosixHelper.ThrowLastError(err);
}
DeleteOnClose = true;
SysPageSize = Syscall.sysconf(SysconfName._SC_PAGESIZE);
_totalAllocationSize = NearestSizeToPageSize(initialFileSize ?? _totalAllocationSize);
PosixHelper.AllocateFileSpace(_fd, (ulong)_totalAllocationSize);
NumberOfAllocatedPages = _totalAllocationSize / _pageSize;
PagerState.Release();
PagerState = CreatePagerState();
}
public Posix32BitsMemoryMapPager(StorageEnvironmentOptions options, VoronPathSetting file, long?initialFileSize = null,
bool usePageProtection = false) : base(options, usePageProtection)
{
_options = options;
FileName = file;
if (Options.CopyOnWriteMode)
{
ThrowNotSupportedOption(file.FullPath);
}
_copyOnWriteMode = options.CopyOnWriteMode && file.FullPath.EndsWith(Constants.DatabaseFilename);
_isSyncDirAllowed = Syscall.CheckSyncDirectoryAllowed(FileName.FullPath);
PosixHelper.EnsurePathExists(FileName.FullPath);
Debug.Assert(RuntimeInformation.IsOSPlatform(OSPlatform.OSX) == false); // O_LARGEFILE not exists in mac and supported by default (however we do not run on mac 32bit..)
_fd = Syscall.open(file.FullPath, OpenFlags.O_RDWR | PerPlatformValues.OpenFlags.O_CREAT | PerPlatformValues.OpenFlags.O_LARGEFILE,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "when opening " + file);
}
_totalAllocationSize = GetFileSize();
if (_totalAllocationSize == 0 && initialFileSize.HasValue)
{
_totalAllocationSize = NearestSizeToAllocationGranularity(initialFileSize.Value);
}
if (_totalAllocationSize == 0 || _totalAllocationSize % AllocationGranularity != 0 ||
_totalAllocationSize != GetFileSize())
{
_totalAllocationSize = NearestSizeToAllocationGranularity(_totalAllocationSize);
PosixHelper.AllocateFileSpace(_options, _fd, _totalAllocationSize, file.FullPath);
}
if (_isSyncDirAllowed && Syscall.SyncDirectory(file.FullPath) == -1)
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "sync dir for " + file);
}
NumberOfAllocatedPages = _totalAllocationSize / Constants.Storage.PageSize;
SetPagerState(new PagerState(this)
{
Files = null,
MapBase = null,
AllocationInfos = new PagerState.AllocationInfo[0]
});
}
public PosixMemoryMapPager(StorageEnvironmentOptions options, VoronPathSetting file, long?initialFileSize = null,
bool usePageProtection = false) : base(options, canPrefetchAhead: true, usePageProtection: usePageProtection)
{
_options = options;
FileName = file;
_copyOnWriteMode = options.CopyOnWriteMode && file.FullPath.EndsWith(Constants.DatabaseFilename);
_isSyncDirAllowed = Syscall.CheckSyncDirectoryAllowed(FileName.FullPath);
PosixHelper.EnsurePathExists(FileName.FullPath);
_fd = Syscall.open(file.FullPath, OpenFlags.O_RDWR | PerPlatformValues.OpenFlags.O_CREAT,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "when opening " + file);
}
SysPageSize = Syscall.sysconf(PerPlatformValues.SysconfNames._SC_PAGESIZE);
if (SysPageSize <= 0) // i.e. -1 because _SC_PAGESIZE defined differently on various platforms
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "Got SysPageSize <= 0 for " + FileName);
}
_totalAllocationSize = GetFileSize();
if (_totalAllocationSize == 0 && initialFileSize.HasValue)
{
_totalAllocationSize = NearestSizeToPageSize(initialFileSize.Value);
}
if (_totalAllocationSize == 0 || _totalAllocationSize % SysPageSize != 0 ||
_totalAllocationSize != GetFileSize())
{
_totalAllocationSize = NearestSizeToPageSize(_totalAllocationSize);
PosixHelper.AllocateFileSpace(_options, _fd, _totalAllocationSize, file.FullPath);
}
if (_isSyncDirAllowed && Syscall.SyncDirectory(file.FullPath) == -1)
{
var err = Marshal.GetLastWin32Error();
Syscall.ThrowLastError(err, "sync dir for " + file);
}
NumberOfAllocatedPages = _totalAllocationSize / Constants.Storage.PageSize;
SetPagerState(CreatePagerState());
}
public PosixMemoryMapPager(StorageEnvironmentOptions options, string file, long?initialFileSize = null,
bool usePageProtection = false) : base(options, usePageProtection)
{
FileName = file;
_copyOnWriteMode = options.CopyOnWriteMode && file.EndsWith(Constants.DatabaseFilename);
_isSyncDirAllowed = PosixHelper.CheckSyncDirectoryAllowed(FileName);
PosixHelper.EnsurePathExists(FileName);
_fd = Syscall.open(file, OpenFlags.O_RDWR | OpenFlags.O_CREAT,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
PosixHelper.ThrowLastError(err, "when opening " + file);
}
SysPageSize = Syscall.sysconf(SysconfName._SC_PAGESIZE);
_totalAllocationSize = GetFileSize();
if (_totalAllocationSize == 0 && initialFileSize.HasValue)
{
_totalAllocationSize = NearestSizeToPageSize(initialFileSize.Value);
}
if (_totalAllocationSize == 0 || _totalAllocationSize % SysPageSize != 0 ||
_totalAllocationSize != GetFileSize())
{
_totalAllocationSize = NearestSizeToPageSize(_totalAllocationSize);
PosixHelper.AllocateFileSpace(_fd, (ulong)_totalAllocationSize, file);
}
if (_isSyncDirAllowed && PosixHelper.SyncDirectory(file) == -1)
{
var err = Marshal.GetLastWin32Error();
PosixHelper.ThrowLastError(err, "sync dir for " + file);
}
NumberOfAllocatedPages = _totalAllocationSize / PageSize;
SetPagerState(CreatePagerState());
}
public PosixMemoryMapPager(int pageSize, string file, long?initialFileSize = null) : base(pageSize)
{
_file = file;
_isSyncDirAllowed = PosixHelper.CheckSyncDirectoryAllowed(_file);
PosixHelper.EnsurePathExists(_file);
_fd = Syscall.open(file, OpenFlags.O_RDWR | OpenFlags.O_CREAT,
FilePermissions.S_IWUSR | FilePermissions.S_IRUSR);
if (_fd == -1)
{
var err = Marshal.GetLastWin32Error();
PosixHelper.ThrowLastError(err);
}
SysPageSize = Syscall.sysconf(SysconfName._SC_PAGESIZE);
_totalAllocationSize = GetFileSize();
if (_totalAllocationSize == 0 && initialFileSize.HasValue)
{
_totalAllocationSize = NearestSizeToPageSize(initialFileSize.Value);
}
if (_totalAllocationSize == 0 || _totalAllocationSize % SysPageSize != 0 ||
_totalAllocationSize != GetFileSize())
{
_totalAllocationSize = NearestSizeToPageSize(_totalAllocationSize);
PosixHelper.AllocateFileSpace(_fd, (ulong)_totalAllocationSize);
}
if (_isSyncDirAllowed && PosixHelper.SyncDirectory(file) == -1)
{
var err = Marshal.GetLastWin32Error();
PosixHelper.ThrowLastError(err);
}
NumberOfAllocatedPages = _totalAllocationSize / _pageSize;
PagerState.Release();
PagerState = CreatePagerState();
}
