unsafe void CreateStreamPosix(int fd, long offset, long size, MemoryMappedFileAccess access)
{
int offset_diff;
mmap_size = (ulong)size;
MemoryMappedFile.MapPosix(fd, offset, ref size, access, out mmap_addr, out offset_diff);
FileAccess faccess;
switch (access)
{
case MemoryMappedFileAccess.ReadWrite:
faccess = FileAccess.ReadWrite;
break;
case MemoryMappedFileAccess.Read:
faccess = FileAccess.Read;
break;
case MemoryMappedFileAccess.Write:
faccess = FileAccess.Write;
break;
default:
throw new NotImplementedException("access mode " + access + " not supported.");
}
Initialize((byte *)mmap_addr + offset_diff, size, size, faccess);
}
unsafe void CreateStreamPosix(FileStream file, long offset, long size, MemoryMappedFileAccess access)
{
long fsize = file.Length;
if (size == 0 || size > fsize)
{
size = fsize;
}
int offset_diff;
MemoryMappedFile.MapPosix(file, offset, size, access, out mmap_addr, out offset_diff, out mmap_size);
FileAccess faccess;
switch (access)
{
case MemoryMappedFileAccess.ReadWrite:
faccess = FileAccess.ReadWrite;
break;
case MemoryMappedFileAccess.Read:
faccess = FileAccess.Read;
break;
case MemoryMappedFileAccess.Write:
faccess = FileAccess.Write;
break;
default:
throw new NotImplementedException("access mode " + access + " not supported.");
}
Initialize((byte *)mmap_addr + offset_diff, size, size, faccess);
}
unsafe void CreatePosix(long offset, long size, MemoryMappedFileAccess access)
{
int offset_diff;
MemoryMappedFile.MapPosix(file_handle, offset, ref size, access, out mmap_addr, out offset_diff);
handle = new SafeMemoryMappedViewHandle((IntPtr)((long)mmap_addr + offset_diff), size);
Initialize(handle, 0, size, ToFileAccess(access));
}
unsafe void CreatePosix(FileStream file, long offset, long size, MemoryMappedFileAccess access)
{
long fsize = file.Length;
if (size == 0 || size > fsize)
{
size = fsize;
}
int offset_diff;
MemoryMappedFile.MapPosix(file, offset, size, access, out mmap_addr, out offset_diff, out mmap_size);
handle = new SafeMemoryMappedViewHandle((IntPtr)((long)mmap_addr + offset_diff), size);
}
