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/* $Id: hosts.h,v 1.30 2004/11/08 22:41:37 graziano Exp $ */
#ifndef HOST_H
#define HOST_H
#include <stddef.h> /* offsetof() */
#include "protocol.h" /* Socket */
#include "nws_messages.h" /* Message number ranges */
#include "formatutil.h" /* DataDescriptor */
#ifdef __cplusplus
extern "C" {
#endif
/* Arbitrary limitation on machine name size. */
#define MAX_MACHINE_NAME 64
/* Port numbers go up to 65535. */
#define MAX_PORT_IMAGE 5
/* Limit on host name size, including colon and port */
#define MAX_HOST_NAME (MAX_MACHINE_NAME + 1 + MAX_PORT_IMAGE)
/* Number of seconds between host registrations. */
#define DEFAULT_HOST_BEAT (15 * 60)
#define SHORT_HOST_BEAT (2 * 60)
/* Note: unsigned int (not enum) here so sizeof(HostTypes) is well-known. */
typedef unsigned int HostTypes;
#define FORECASTER_HOST 0
#define MEMORY_HOST 1
#define NAME_SERVER_HOST 2
#define SENSOR_HOST 3
#define PROXY_HOST 4
/**
* A HostInfo struct accompanies the HOST_TEST_RESULT message.
* #registrationName# is the name under which this host is registered with its
* name server; #hostType# is the kind of host; #nameServer# specifies where
* its registration lives; and #healthy# indicates whether the registration
* information cached locally matches that stored with the name server.
*/
typedef struct {
char registrationName[MAX_HOST_NAME];
HostTypes hostType;
char nameServer[MAX_HOST_NAME];
unsigned int healthy;
} HostInfo;
static const DataDescriptor hostInfoDescriptor[] =
{SIMPLE_MEMBER(CHAR_TYPE, MAX_HOST_NAME,
offsetof(HostInfo, registrationName)),
SIMPLE_MEMBER(UNSIGNED_INT_TYPE, 1, offsetof(HostInfo, hostType)),
SIMPLE_MEMBER(CHAR_TYPE, MAX_HOST_NAME, offsetof(HostInfo, nameServer)),
SIMPLE_MEMBER(UNSIGNED_INT_TYPE, 1, offsetof(HostInfo, healthy))};
#define hostInfoDescriptorLength 4
/**
* An NsInfo struct accompanies the HOST_GOT_NS or the HOST_GOT_MEMORY
* message. #nameServer# gives the host name and port, #nsType# is the
* type of nameserver or memory.
*/
typedef unsigned int NsTypes;
#define NWS_NS 0
#define LDAP_NS 1
#define NWS_MEMORY 2
typedef struct {
char nameServer[MAX_HOST_NAME];
NsTypes nsType;
} NsInfo;
static const DataDescriptor nsInfoDescriptor[] =
{SIMPLE_MEMBER(CHAR_TYPE, MAX_HOST_NAME, offsetof(NsInfo, nameServer)),
SIMPLE_MEMBER(UNSIGNED_INT_TYPE, 1, offsetof(NsInfo, nsType))};
#define nsInfoDescriptorLength 2
#ifdef __cplusplus
}
#endif
#endif
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