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-   -   Please help to solve error return code:LE_ERR_IO of subroutine errlog_find_first (http://www.go4expert.com/forums/help-solve-error-return-codeleerrio-t5560/)

zhguowen 31Jul2007 13:57

Please help to solve error return code:LE_ERR_IO of subroutine errlog_find_first
 
Enviroment:AIX V5.2
compile:IBM VAC enterprise V7.0

programe code:

root@zhguowen_sv:/asmdev/asm#cat errlog_find.c
Code:

#include <stdio.h>
#include <fcntl.h>
#include <sys/errlog.h>

int mode=0;
unsigned int magic;

errlog_handle_t errlog_va;
errlog_handle_t *hdl=&errlog_va;

int begintime=0710000007,endtime=0727000007;
/*MMDDHHMMYY (month, day, hour, minute, and year).*/

main()
{
        magic=LE_MAGIC;
        int rc;
        rc=errlog_open(NULL,mode,magic,hdl);
        if (rc==0)
        {
                printf("\nopen errlog sucessful!\n");
        }
        else
        {
                printf("\nopen errlog failed!\n");
        }
       
        extern int begintime, endtime;
        errlog_match_t beginstamp, endstamp, andstamp;
        errlog_match_t hardclass, softclass, orclass;
        errlog_match_t andtop;
        errlog_match_t *p=&andtop;
        int ret;
        errlog_entry_t result;
       
        /* * Select begin and end times */
       
        beginstamp.em_op = LE_OP_GT; /* Expression ¡¯A¡¯ */
        beginstamp.em_field = LE_MATCH_TIMESTAMP;
        beginstamp.em_intvalue=begintime;
        endstamp.em_op = LE_OP_LT; /* Expression ¡¯B¡¯ */
        endstamp.em_field = LE_MATCH_TIMESTAMP;
        endstamp.em_intvalue=endtime;
        andstamp.em_op = LE_OP_AND; /* ¡¯A¡¯ and ¡¯B¡¯ */
        andstamp.em_left = &beginstamp;
        andstamp.em_right = &endstamp; /* * Select the classes we¡¯re interested in. */
        hardclass.em_op = LE_OP_EQUAL; /* Expression ¡¯C¡¯ */
        hardclass.em_field = LE_MATCH_CLASS;
        hardclass.em_strvalue = "H";
        softclass.em_op = LE_OP_EQUAL; /* Expression ¡¯D¡¯ */
        softclass.em_field = LE_MATCH_CLASS;
        softclass.em_strvalue = "S";
        orclass.em_op = LE_OP_OR; /* ¡¯C¡¯ or ¡¯D¡¯ */
       
        orclass.em_left = &hardclass;
        orclass.em_right = &softclass;
        andtop.em_op = LE_OP_AND; /* (¡¯A¡¯ and ¡¯B¡¯;) and (¡¯C¡¯ or ¡¯D¡¯;) */
        andtop.em_left = &andstamp;
        andtop.em_right = &orclass;
       
        int direction=LE_REVERSE;
        rc=errlog_set_direction(hdl, direction);
        if (rc==0)
        {
                printf("\ndirection errlog sucessful!\n");
        }
        else
        {
                printf("\ndirection errlog failed!\n");
        }
       
        ret = errlog_find_first(hdl,&andtop,&result);
       
        if (ret==0)
        {
                printf("\nfind errlog sucessful!\n");
        }
        else
        {
                printf("\nfind errlog failed!\n");
        }
       
        if (LE_ERR_INVARG == ret)
                printf("\n\n return LE_ERR_INVARG \n");
       
        if (LE_ERR_NOMEM == ret)
                printf("\n\n return LE_ERR_NOMEM \n");
        if (LE_ERR_IO == ret)
                printf("\n\n return LE_ERR_IO \n");
        if (LE_ERR_DONE == ret)
                printf("\n\n return LE_ERR_INVFILE \n");
       
}

------------------------------------------------------------------------------
execute result£º
root@zhguowen_sv:/asmdev/asm#xlc errlog_find.c /usr/lib/liberrlog.a

root@zhguowen_sv:/asmdev/asm#./a.out
open errlog sucessful!
direction errlog sucessful!
find errlog failed!
return LE_ERR_IO

root@zhguowen_sv:/asmdev/asm#
-------------------------------------------------------------------------------------


Problem:

errlog_open,errlog_directory and errlog_find_first subroutine come from the book of Technical Reference: Base Operating System and Extensions, Volume 1.

1.Return error code:LE_ERR_IO, means An i/o error occurred. How to solve this question?
2.Are there any other book to explain errlog subroutine? It has too little infomation in Technical Reference: Base Operating System and Extensions, Volume 1.
3.My mail address:zhguowen0103@hotmail.com

Thanks alot!


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