Please Help!
I'm running out of ram all the time when i try and write to the SD card, But it says I've got heaps spare. Here is my code.
public static void Writer(string msg, string path, string file)
{
Debug.GC(true);
Debug.Print("mem: " + Debug.GC(true));
lock (CardLock)
{
//SDC_flushSlow();
int bufferSize = msg.Length;
Debug.Print("Attempting to write with buffer of " + bufferSize.ToString());
try
{
if (Detect.SD_Card() & File.Exists(path + file))
{
using (var writestream = new FileStream(path + file, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite, bufferSize))
{
StreamWriter SW = new StreamWriter(writestream);
SW.Write(msg);
SW.Flush();
SW.Close();
}
}
else if (Detect.SD_Card())
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
using (var writestream = new FileStream(path + file, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite, bufferSize))
{
StreamWriter SW = new StreamWriter(writestream);
SW.Write(msg);
SW.Flush();
SW.Close();
}
}
}
catch (Exception e)
{
Debug.Print("SD_Writer Failed " + e.Message);
}
DebugLED.Show(15, 500);
}
}
But I get this every time.
SDC_Flushed and remounted mem: 24732 Attempting to write with buffer of 1074 Failed allocation for 343 blocks, 4116 bytes Failed allocation for 343 blocks, 4116 bytes A first chance exception of type 'System.OutOfMemoryException' occurred in System.IO.dll SD_Writer FailedException was thrown: System.OutOfMemoryException
Ok, I’ve got an idea that might be causing it. Do you think that it could be that I have about three threads running at this stage?
if I call this:
Debug.GC(true)
Debug.Print("mem: " + Debug.GC(true));
Then it says I have 24k spare.
But the it can’t find a 4k in a row to open the stream writer.
Could it be that the 2 other threads are preventing the garbage collector from moving memory objects. Does the garbage collector run across all threads or only the one it is called in?
Thanks So much in advance.
