Global Condition Flags

Global condition flags ensure proper cycling of server state. More...

Variables
volatile sig_atomic_t	running
	Flag indicating whether the server is running.
volatile sig_atomic_t	reset_clock
	Flag indicating whether to reset the main reference clock tick.
volatile sig_atomic_t	logging
	Flag indicating whether the logs are being added to.
volatile sig_atomic_t	init
	Flag indicating if initialization completed.
volatile sig_atomic_t	handling_clock
	Condition indicating we are handling the clock thread.
volatile sig_atomic_t	handling_controller
	Condition indicating we are handling the controller thread.
volatile sig_atomic_t	handling_input
	Condition indicating we are handling the input thread.
volatile sig_atomic_t	handling_state
	Condition indicating we are handling the state thread.
volatile sig_atomic_t	handling_output
	Condition indicating we are handling the output thread.

Detailed Description

Global condition flags ensure proper cycling of server state.

There are 3 main "global" flags that pertain to the status of the state server:

• running (set to 0 to "kill" the server)
• logging (set to 1 to ensure logging of state in OUTPUT thread each cycle)
• init (set to 1 once initialization has completed successfully)

Additionally, there are 5 "handling" flags ensure correct cycling of thread state:

1. CLOCK - handling_clock
2. CONTROLLER - handling_controller
3. INPUT - handling_input
4. STATE - handling_state
5. OUTPUT - handling_output

At any instant that a condition signal is issued, only one of these 5 flags should be 1 (the others should be 0).

Variable Documentation

handling_clock

volatile sig_atomic_t handling_clock

extern

Condition indicating we are handling the clock thread.

Flag indicating we are in the clock handling thread condition. >

handling_controller

volatile sig_atomic_t handling_controller

extern

Condition indicating we are handling the controller thread.

Flag indicating we are in the controller handling thread condition. >

handling_input

volatile sig_atomic_t handling_input

extern

Condition indicating we are handling the input thread.

Flag indicating we are in the input handling thread condition. >

handling_output

volatile sig_atomic_t handling_output

extern

Condition indicating we are handling the output thread.

Flag indicating we are in the output handling thread condition. >

handling_state

volatile sig_atomic_t handling_state

extern

Condition indicating we are handling the state thread.

Flag indicating we are in the state handling thread condition. >

init

volatile sig_atomic_t init

extern

Flag indicating if initialization completed.

Flag indicating if initialization completed.

logging

volatile sig_atomic_t logging

extern

Flag indicating whether the logs are being added to.

Flag indicating whether the logs are being added to

reset_clock

volatile sig_atomic_t reset_clock

extern

Flag indicating whether to reset the main reference clock tick.

Flag indicating whether to reset the main clock tick which millisecond timestamps in logs are referenced to.

running

volatile sig_atomic_t running

extern

Flag indicating whether the server is running.

Flag indicating whether the server is running