System Notes and Examples

System Notes and Examples

• What is a filter?
• Command Syntax.
• Make files.
• Include files, libraries, shared and dynamic libraries.
  
  
• System calls.
• What is a file?
• File I/O; Files and Directories.
• File Locking.
• Memory Mapped I/O.
• Process segments.
• File descriptors and open files (diagram in gif or pdf - See note below).
• Memory layout of C process (diagram in gif or pdf - See note below).
• Pipe, fork and exec and related process control topics, such as wait and job control.
• How a Bourne type shell does pipelines and lists (diagram in gif or pdf - See note below).
• FIFO - named pipes.
• Exit status as seen on a shell command.
• Executing shell commands from a C program.
• Signals including signal handlers and sigaction.
• Concurrency and operating systems.
• Threads:
  • Thread generalities and POSIX threads.
  • Kinds of threads (diagram in gif or pdf - See note below).
  • A simple POSIX threads example: pthreads.c. Use this makefile.
• A mini glossary.