IPX/SPX Programming Manual

Library Routines

HP NonStop IPX/SPX Programming Manual—528022-001

5-57

socket_backup

The socket_backup function returns data to the backup process of a NonStop

process pair, after the primary process has checkpointed the data using the

socket_get_open_info function. This function is designed to allow user

applications to establish a backup open to an IPX/SPX process. This function is called

by the backup user application.

error

is the return value. If the call is successful, a zero is returned. If the call is not

successful, -1 is returned. If the call failed, the external variable errno is set as

indicated below in “Errors.”

message

Refer to the FILE_OPEN_ procedure call in the Guardian Procedure Calls

Reference Manual for a description of this field.

brother_phandle

Refer to the FILE_OPEN_ procedure call in the Guardian Procedure Calls

Reference Manual for a description of this field.

Errors

File system errors as defined in <errno.h> are returned by this call. For a description

of the file system error returned, type (from the TACL prompt):

> ERROR error-num

where error-num is the error number returned in errno.

C Synopsis

#include <socket.h>

#include <nv.h>

#include <if.h>

#include <netdb.h>

error = socket_backup(*message, *brother_phandle);

int error;

struct open_info_message *message;

char *brother_phandle;