Re^3: Memory mapped file questions

How much of your C# code do you understand?

Reading your code, there is the line:

MemoryMappedFile.CreateOrOpen("Test", 1000, MemoryMappedFileAccess.Rea
+dWrite);
[download]

This suggests that the code opens or creates a file named Test in the current directory, and as jcb suggests, you could use that as the filename.

If this is your code, maybe you want to use a different approach than a memory mapped file. If this is not your code, consider talking to the original author about using a different serialization scheme, like JSON, or a well-defined binary layout, or just not using a memory mapped file when a plain file will do just as well.

Comment on Re^3: Memory mapped file questions Select or Download Code

Replies are listed 'Best First'.
Re^4: Memory mapped file questions by faustf (Novice) on Oct 10, 2020 at 09:21 UTC
Msdn docet MemoryMappedFile.CreateOrOpen Metod: Creates a new empty memory-mapped file or opens an existing one IF one with the same name exists. (i assure not exist a file in my HDD with name Test ) if i wanted to open a file i would used this MemoryMappedFile.CreateFromFile Create a memory-mapped file from a disk file.	[reply]
Re^5: Memory mapped file questions by Corion (Patriarch) on Oct 10, 2020 at 09:29 UTC
If you don't create the file on disk, how do you expect Perl to read from that file? My suggestion to you is to look at other approaches of passing data to another program than using an unnamed memory mapped file.	[reply]
Re^6: Memory mapped file questions by faustf (Novice) on Oct 10, 2020 at 16:18 UTC
I thought it could do it like c++ or c# does, therefore you confim perl is not able to do that ?	[reply]
Re^7: Memory mapped file questions by Corion (Patriarch) on Oct 10, 2020 at 18:47 UTC
Re^8: Memory mapped file questions by faustf (Novice) on Oct 11, 2020 at 07:46 UTC
Some notes below your chosen depth have not been shown here


Your skill will accomplish what the force of many cannot
	PerlMonks