windows-xp/Source/XPSP1/NT/base/cluster/service/gs/msg.h

/*++

Copyright (c) 2000  Microsoft Corporation

Module Name:

    msg.h

Abstract:

    msg definition

Author:

    Ahmed Mohamed (ahmedm) 12, 01, 2000

Revision History:

--*/


#ifndef GS_MSG_H
#define GS_MSG_H

#include "type.h"

#define	GS_MSG_TYPE_SEQALLOC	0
#define	GS_MSG_TYPE_SEQREPLY	1
#define	GS_MSG_TYPE_MCAST	2
#define	GS_MSG_TYPE_REPLY	3
#define	GS_MSG_TYPE_UCAST	4
#define	GS_MSG_TYPE_ACK		5

#define	GS_MSG_TYPE_INFO	6
#define	GS_MSG_TYPE_MM		7
	
#define	GS_MSG_TYPE_JOIN_REQUEST	8
#define	GS_MSG_TYPE_JOIN	9
#define	GS_MSG_TYPE_UP		10
#define	GS_MSG_TYPE_EVICT_REQUEST	11
#define	GS_MSG_TYPE_EVICT	12

#define	GS_MSG_TYPE_RECOVERY	13
#define	GS_MSG_TYPE_SYNC	14

#define	GS_MSG_TYPE_ABORT      	244
#define	GS_MSG_TYPE_SKIP	255

#define GS_MSG_STATE_FREE	0
#define GS_MSG_STATE_NEW	1
#define GS_MSG_STATE_READY	2
#define GS_MSG_STATE_DELIVERED	3
#define GS_MSG_STATE_DONE	4


typedef struct gs_msg_hdr {
    UINT16	h_len;		// payload size
    UINT16	h_type;		// msg type
    UINT16	h_flags;	// msg flags
    UINT16	h_viewnum;	// generation number, drop this msg if no match
    UINT16	h_rlen;		// for delivered msgs, how big can sender accept reply
    gs_cookie_t		h_cid;	// sender cookie for reply packets
    gs_gid_t		h_gid;	// group id
    gs_sequence_t	h_mseq;	// global sequence
    gs_sequence_t	h_bnum;	// this msg batch number
    gs_sequence_t	h_lseq;	// sender sequence number
    gs_memberid_t	h_mid;	// master member id
    gs_memberid_t	h_sid;	// sender member id
    char		h_tag[64];
}gs_msg_hdr_t;
    
#define MSG_TYPE_HDR	1
#define	MSG_TYPE_DATA	2

typedef struct gs_msg {
    struct gs_msg	*m_next;	// next msg in queue
    UINT8		m_type;		// type
    UINT8		m_refcnt;	// refcnt
    UINT16		m_buflen;	// length of buffer
    gs_msg_hdr_t	m_hdr;		// msg header
    char		*m_buf;
}gs_msg_t;

int
WINAPI
msg_addnode(int id, char *n, char *a);

gs_msg_t * msg_alloc(const char *buf, int len);

int msg_send(gs_memberid_t, gs_msg_hdr_t *, const char *, int);

void msg_mcast(ULONG, gs_msg_hdr_t *, const char *, int);

void msg_smcast(ULONG, gs_msg_hdr_t *, const char *, int);

void msg_free(gs_msg_t *);

int msg_init();

void msg_exit();

int msg_getsize();

typedef void(*gs_msg_handler_t)(gs_msg_t *);

typedef enum {
    MSG_NODE_ID,
    MSG_NODE_JOIN,
    MSG_NODE_UP,
    MSG_NODE_DOWN
}gs_node_event_t;

typedef void(*gs_node_handler_t)(int);

void
msg_set_uport(int uport);


void
msg_set_mport(int mport);


void
msg_set_uipaddr(char *addr);


void
msg_set_mipaddr(char *addr);


void
msg_set_bufcount(int count);

void
msg_set_bufsize(int size);

void
msg_start(ULONG mask);

#endif