IPC illustration

description

• inter-process communication made with:
  • pipes
  • fifos
  • sockets
• this program runs up to three processes:
  • client process
  • server process
  • server's child process
• C programming language was used

setup

• run server.c
• run client.c
• write commands in the client process

signatures of commands

• login : argument
• lougout
• get-logged-users
• get-proc-info : argument
• quit

projects' design

• client sends the command to server
• the server receives it and sends the command to a child process
• check the requirements
• send the output of the command back to the client

valuable points

• fast execution and portability assured with POSIX primitives
• failures are avoided by the constructed error management system

limitations

• small constants
• support for modest amount of data

upcoming improvements

• greater constants and more data storage power
• the patch for server.c's username
• better way of shutting down the server
• get-proc-info debug