#####System V IPCs

#####Grade (TBD/100) (TBD/125)*

#####Goals:

• Code in C, observe school's C norm, turn a Makefile, never crash.
• Create a game where each process is an IA player, use SysV IPCs to organize the game.
• Only one binary for players, the first player in generate the IPCs, the last player out destroys it.
• A board must be stored in Shared memory, each player has a position on it.
• A Semaphore controls access to the board, a player can move in any of the 4 directions.
• A player belong to a team. If a player is surrounded by 2 players of a same enemy team, it must leave the game.
• Teammates can only communicate with Messages Queues.
• Display the board content.

#####Recommended bonuses:

• Pretty graphic interface for the board.
• Competitive IA.

#####My work:

• Robust code versus all kind of attacks but: 1. IPCs corruption from the outside, 2. Process killed with semaphore control.
• Signal handling to leave properly.
  
  
• A SEM to guard resources creation/destruction/fetch.
• A MSQ containing all players PIDs (used as a tiny protection versus killed processes).
• A SHM containing some data that was passed to the first process as arguments, (board size, num teams).
• A SHM for the board (sizeof(int) * board_width * board_width).
• Several MSQs for teammates communications.
• A SEM for the board read/write operations and for the teammates MSQs.
  
  
• Abstraction of the resources Creation/Destruction such that previous steps can be reverted in case of trouble. (ressources_life.c)

All my C files strictly observes school's norm, it may often lead to odd or illogical syntaxes.
- [ ] Forbiden keywords: for, do, switch, goto.
- [ ] No more than 25 lines inside a function block.
- [ ] No more than 80 characters per lines.
- [ ] At most 5 functions per files.
- [ ] Only 1 declaration per line.  
- [ ] No declaration and assignation on the same line.
- [ ] At most 1 assignation per line.
- [ ] No more than 4 parameters for a function.
- [ ] No nested ternary.

*
- A grade of 85 was required to validate the project.
- A maximum grade of 125 was reachable.
- Second sessions are organised for failed projects.