On 12/3/19 8:46 AM, Jerry Geis wrote:
I am experiencing an issue that my process does not wake out of a select() call when a single character is received in an input file descriptor when running as a VMware guest.
Anyone ever experienced this ?
I can run tshark and see the character arrive, but my process does not wake up and see that character. Most times it works - but once in a while it does not.
So I made a change on my code - and did not just wait on select() - but just try to read the buffer all the time and print the results. once in a while that character is "delayed" getting to my input buffer. Top reports the machine is 99% idle.
Any thoughts?
Jerry _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
You don't say what the app is written in but I ran into this with perl. perl apps can either be line buffered or character buffered ($| if I remember right is the switch). Line buffered means the buffer is not delivered until a newline character is received. If nothing else, try "<char>\n" and see if that gets consistently delivered.
Cheers, Dave