Debug multi-process with DDD

1. debugging object

View the current debugging object: Show follow-fork-Mode

Debug the parent process: Set follow-fork-mode parent

Debug sub-processes: Set follow-fork-mode child

 

2. debugging mode

View the current debugging mode: Show detach-on-Fork

Separation mode: Set detach-on-fork on in this mode, processes that have not been debugged run at full speed

Non-separation mode: Set detach-on-fork off. In this mode, the process that has not been debugged is monitored by GDB.

 

3. General debugging

Add the waiting code in the waiting for debugging:

# Ifdef debug <br/> void debug_wait (INT Debug) <br/>{< br/> do {<br/> If (Debug) <br/> sleep (1); <br/> else <br/> break; <br/>} while (1 ); <br/>}< br/> # else <br/> void debug_wait (INT Debug) <br/>{}< br/> # endif