allocations.c

openPBS的开放源代码

/*
*         OpenPBS (Portable Batch System) v2.3 Software License
* 
* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
* All rights reserved.
* 
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* 
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* Software to other sites and locations.  Use and redistribution of
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/* $Id: allocations.c,v 1.1.10.4 2000/08/09 00:19:12 hender Exp $ */

/*
 * This file contains routines pulled over from the parallel systems' 
 * PBS toolkit.
 *
 * Authors include: James Patton Jones, NAS/NASA Ames
 *                  Dr. Ed Hook, NASA LaRC
 *                  Chris Batten, NASA LaRC
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "pbs_error.h"
#include "pbs_ifl.h"
#include "log.h"

#include "toolkit.h"
#include "gblxvars.h"

extern int connector;

/* Misc Other Global Variables */
int     schd_NeedToGetAllocInfo;
int     schd_NeedToGetYTDInfo;
int     schd_NumAllocation;

Alloc_Group schd_GroupTable[MAX_GROUP];

static int cmp_gname (const void *a, const void *b);
static int get_FY_used (char *gname, float *used);
static int get_allocation (char *gname, float *alloc);
static char *trim_whitespace (char *string);
/* 
 * Read allocation and usage data for current fiscal year
 *
 * Allocation database is a flat file that contains lines like:
 *
 *    P= XXX:Evolution of FOO for XXX Applications = 1234 = 0.0 = 50.0 = 0
 */


void 
schd_alloc_info(void)
{
    char   *id = "schd_alloc_info";
    char   *syntax = "Syntax error in line %d of %s.  Skipping...";
    int     i;
    int     linenum, jobs, ret;
    int     count = 0;
    char    buffer[MAX_TXT * 2];
    char    gname[MAX_USER_NAME_SIZE];
    char    uid[MAX_TXT + 1];
    char    gid[MAX_TXT + 1];
    char    used[MAX_TXT + 1];
    char    alloc_line[MAX_TXT + 1];
    FILE   *fp;
    char   *p, *end;
    float   nodes_used, pct;
    float   alloc;
    int     table_modified = 0;

    if (!schd_NeedToGetAllocInfo)
	goto get_current;

    /* Initialize the allocation group table(s) */
    for (i = 0; i < MAX_GROUP; ++i) {
	schd_GroupTable[i].allocation = 0.0;
	strcpy(schd_GroupTable[i].gname, "");
    }

    if ((fp = fopen(schd_AllocFilename, "r")) == NULL) {
	(void)sprintf(log_buffer,
	      "Warning: group allocation data (%s) unreadable. Skipping...",
	      schd_AllocFilename);
	log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id, log_buffer);
    } else {
	linenum = 0;
	while (fgets(buffer, sizeof (buffer), fp)) {

	    linenum ++;
	    p = strtok(buffer, "=");	/* p --> 'P'			*/
	    if ((strcmp(p, "P") != 0) || (p == NULL)) {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }

	    p = strtok(NULL, "=");	/* p --> ' <description> '	*/
	    if (p == NULL) {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }

	    p = strtok(NULL, "=");	/* p --> '<group>'		*/
	    if (p == NULL) {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }

	    p = trim_whitespace(p);
	    if (isdigit((int)*p))	/* isdigit() wants an int, not char */
		sprintf(gname, "g%s", p);	/* 'g7989'	*/
	    else
		sprintf(gname, "%s", p);	/* 'groupname'	*/

	    p = strtok(NULL, "=");		/* p --> '<allocation>' */
	    if (p == NULL) {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }

#ifdef INCLUDE_DEAD_CODE
	    p = trim_whitespace(p);
	    if (!strcmp(schd_SYSTEM_NAME, "babbage"))
		p = strtok(NULL, "=");
	    if (!strcmp(schd_SYSTEM_NAME, "poseidon"))
		p = strtok(NULL, "=");
	    if (p == NULL) {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }
#endif /* INCLUDE_DEAD_CODE */

	    p = trim_whitespace(p);
	    /* Do more robust error checking of the allocations value. */
	    alloc = strtod(p, &end);
	    if (*end != '\0') {
		(void)sprintf(log_buffer, syntax, linenum, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, 
		    id, log_buffer);
		DBPRT(("%s: %s\n", id, log_buffer));
		continue;
	    }

	    strcpy(schd_GroupTable[count].gname, gname);
	    schd_GroupTable[count].allocation = alloc;
	    ++count;

	    if (count >= MAX_GROUP) {
		(void)sprintf(log_buffer, "WARNING: Too much allocation data.  "
		    "Only using first %d lines of %s.\n", 
		    count, schd_AllocFilename);
		log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id, 
		    log_buffer);
		break;
	    }
	}
	fclose(fp);
    }
    schd_NumAllocation = count;
    qsort(schd_GroupTable, count, sizeof (Alloc_Group), cmp_gname);

    schd_NeedToGetAllocInfo = 0;
    schd_NeedToGetYTDInfo = 1;	/* necessary */
    table_modified = 1;

get_current:
    if (!schd_NeedToGetYTDInfo)
	goto skip_ytd_info;

    /* Initialize the usage count in the table */
    for (i = 0; i < schd_NumAllocation; ++i)
	schd_GroupTable[i].total_usage = 0.0;

    if ((fp = fopen(schd_CurrentFilename, "r")) == NULL) {