Bug 56990 - System.IO.Ports SerialPort doesn't lock serial port using flock
Summary: System.IO.Ports SerialPort doesn't lock serial port using flock
Status: CONFIRMED
Alias: None
Product: Class Libraries
Classification: Mono
Component: System (show other bugs)
Version: 4.6.0 (C8)
Hardware: Other Linux
: --- enhancement
Target Milestone: Community
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-05-31 04:17 UTC by Craig McQueen
Modified: 2017-09-13 13:42 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
CONFIRMED

Description Craig McQueen 2017-05-31 04:17:00 UTC
On Linux, it seems to be a convention that programs using a serial port should lock the port for exclusive access using flock(fd, LOCK_EX | LOCK_NB), or else fail with an error to indicate the serial port is already in-use.

It would be good if System.IO.Ports SerialPort would implement this locking on Linux.

See:
https://stackoverflow.com/q/29482327/60075 "Locking a Linux serial port or other device in Mono"
https://stackoverflow.com/q/30316722/60075 "What is the best practice for locking serial ports and other devices in Linux?"