Developing and Porting C and C++ Applications on AIX

References for shmat services

This section includes the following subroutine references:

• “The ftok() subroutine” on page 448

• “The shmat() routine” on page 449

• “The shmctl() subroutine” on page 454

• “The shmget() routine” on page 457

• “The shmdt() subroutine” on page 460

The ftok() subroutine

Generates a standard interprocess communication key.

Library

Standard C library (libc.a)

Syntax

#include <sys/types.h>
#include <sys/ipc.h>

key_t ftok(Path, ID)
char *Path;
int ID;

Description

The ftok() subroutine returns a key, based on the Path and ID parameters, to be used to obtain interprocess communication identifiers. The ftok() subroutine returns the same key for linked files if called with the same ID parameter. Different keys are returned for ...