Linux® Socket Programming

Appendix C. Kernel API Subset

IN THIS APPENDIX

• Tasks

• Threads

• Locking

• Signals

• Files and So On

This appendix lists all the manual pages of the kernel library and system calls that are not directly related to sockets but are typically used in conjunction with sockets.

Tasks

Tasks include both processes and threads. Threads (pThreads) are defined in the next section; this section covers processes and low-level tasks (clones).

fork()

Create a new process (independent task) at this call. This call creates a child process to run with the parent. You must be careful that you capture the child and direct it to its assigned task; otherwise, the child runs each statement the parent does (they run together).

Prototype

#include <unistd.h>
pid_t fork(void);

Return Value ...