msg.h File Reference

#include <linux/ipc.h>

Go to the source code of this file.

Data Structures
struct	msg
	one msg structure for each message More...
struct	msqid_ds
	one msqid structure for each queue on the system More...
struct	msgbuf
	message buffer for msgsnd and msgrcv calls More...
struct	msginfo
Defines
#define	MSG_NOERROR   010000
	msgrcv options no error if message is too big
#define	MSG_EXCEPT   020000
	recv any msg except of specified type.
#define	MSGPOOL   (MSGMNI*MSGMNB/1024)
	unused size in kilobytes of message pool
#define	MSGTQL   MSGMNB
	number of system message headers
#define	MSGMAP   MSGMNB
	number of entries in message map
#define	MSGSSZ   16
	message segment size
#define	__MSGSEG   ((MSGPOOL*1024)/ MSGSSZ)
	max no. of segments
#define	MSGSEG   (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)

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Define Documentation

#define __MSGSEG   ((MSGPOOL*1024)/ MSGSSZ)

max no. of segments

Definition at line 69 of file msg.h.

#define MSG_EXCEPT   020000

recv any msg except of specified type.

Definition at line 7 of file msg.h.

#define MSG_NOERROR   010000

msgrcv options no error if message is too big

Definition at line 6 of file msg.h.

#define MSGMAP   MSGMNB

number of entries in message map

Definition at line 67 of file msg.h.

#define MSGPOOL   (MSGMNI*MSGMNB/1024)

unused size in kilobytes of message pool

Definition at line 65 of file msg.h.

#define MSGSEG   (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)

Definition at line 70 of file msg.h.

#define MSGSSZ   16

message segment size

Definition at line 68 of file msg.h.

#define MSGTQL   MSGMNB

number of system message headers

Definition at line 66 of file msg.h.

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