ipc.h

Overview

Related Modules:

IPC

Description:

Defines IPC-related macros.

Since:

1.0

Version:

1.0

Summary

Macros

Macro Name and Value Description
IPC_CREAT   01000 Defines the input parameter used to create an IPC object.
IPC_EXCL   02000 Defines the input parameter used together with IPC_CREAT to prevent duplicate key values during IPC creation.
IPC_NOWAIT   04000 Defines the input parameter that specifies whether the communication is in non-blocking mode.
IPC_RMID   0 Defines the input parameter used to delete an IPC object.
IPC_SET   1 Defines the input parameter used to set information to the kernel.
IPC_INFO   3 Defines the input parameter used to obtain the system-level restriction information of a specified communication type, for example, shminfo.
IPC_PRIVATE   ((key_t) 0) Defines the IPC object as a private object.