How to create named pipe (mkfifo) in Android?

Question

I am having trouble in creating named pipe in Android and the example below illustrates my dilemma:

res = mkfifo(\"/sdcard/fifo9000\", S_IRWXO);
if (res != 0         


        

Answer 1

I would like to append to the accepted answer:

1) I am able to use this method to connect a socket between two native modules of an Android app.

2) write() should be in a loop since it may not write the full amount requested in the first go. For example, it should read something like:

void *p = buffer;
count = 0;
while ((count += write(clientSock, buffer, num_bytes - count)) < num_bytes)
{
    if (count < 0)
    {
        close(clientSock);
        errCode = count;
        break;
    }
    p += count;
}

The error handling shown above is insufficient, since several error codes simply indicate to try again. See the documentation for write.