使用以下代码时无法使用MemoryMappedFile。
static int NoOfChannels = 1164;
static int NoOfRows = 64;
static int N = NoOfChannels * NoOfRows;
static int NoOfProjections = 10000;
static long val = (long)NoOfChannels * NoOfRows * NoOfProjections * 4;
static FileStream stream = null;
stream = new FileStream("D:\\TEST.DAT", FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite, 10);
stream.SetLength(val);
MemoryMappedFile m = MemoryMappedFile.CreateFromFile(stream, "XXXX", stream.Length, MemoryMappedFileAccess.ReadWrite, null, HandleInheritability.None, true);
for (int i = 0; i < NoOfProjections; i++)
{
long Pos = (long)(i * N * 4);
MemoryMappedViewStream s = m.CreateViewStream(Pos, N * 4);
}
使用此代码会导致错误UnknownError_Num 8.如果我将NoOfChannels限制为较小的值,则不会出现错误。我的系统中有32GB,因此分配这些数据时应该没有问题。
有人经历过这样的行为吗?
由于 马丁