lib/datapid.c - platform/external/ltp - Gitiles

 /*
  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it would be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  *
  * Further, this software is distributed without any warranty that it is
  * free of the rightful claim of any third person regarding infringement
  * or the like.  Any license provided herein, whether implied or
  * otherwise, applies only to this software file.  Patent licenses, if
  * any, provided herein do not apply to combinations of this program with
  * other software, or any other product whatsoever.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write the Free Software Foundation, Inc., 59
  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  *
  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  * Mountain View, CA  94043, or:
  *
  * http://www.sgi.com
  *
  * For further information regarding this notice, see:
  *
  * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
  */
 /************

 64 bits in a Cray word

 				12345678901234567890123456789012
 1234567890123456789012345678901234567890123456789012345678901234
 ________________________________________________________________
 <    pid       >< word-offset in file (same #) ><    pid       >

 1234567890123456789012345678901234567890123456789012345678901234
 ________________________________________________________________
 <    pid       >< offset in file of this word  ><    pid       >


 8 bits to a bytes == character
  NBPW            8
 ************/

 #include <stdio.h>
 #include <sys/param.h>
 #ifdef UNIT_TEST
 #include <unistd.h>
 #include <stdlib.h>
 #endif

 static char Errmsg[80];

 #define LOWER16BITS(X)	(X & 0177777)
 #define LOWER32BITS(X)	(X & 0xffffffff)

 /***
 #define HIGHBITS(WRD, bits) ( (-1 << (64-bits)) & WRD)
 #define LOWBITS(WRD, bits) ( (-1 >> (64-bits)) & WRD)
 ****/

 #define NBPBYTE		8		/* number bits per byte */

 #ifndef DEBUG
 #define DEBUG	0
 #endif

 /***********************************************************************
  *
  *
  * 1   2   3   4   5   6   7   8   9   10  11  12  13  14  14  15	bytes
  * 1234567890123456789012345678901234567890123456789012345678901234	bits
  * ________________________________________________________________	1 word
  * <    pid       >< offset in file of this word  ><    pid       >
  *
  * the words are put together where offset zero is the start.
  * thus, offset 16 is the start of  the second full word
  * Thus, offset 8 is in middle of word 1
  ***********************************************************************/
 int
 datapidgen(pid, buffer, bsize, offset)
 int pid;
 char *buffer;
 int bsize;
 int offset;
 {
 #if CRAY

    int cnt;
    int tmp;
    char *chr;
    long *wptr;
    long word;
    int woff;	/* file offset for the word */
    int boff;	/* buffer offset or index */
    int num_full_words;

     num_full_words = bsize/NBPW;
     boff = 0;

     if ( cnt=(offset % NBPW) ) {	/* partial word */

 	woff = offset - cnt;
 #if DEBUG
 printf("partial at beginning, cnt = %d, woff = %d\n", cnt, woff);
 #endif

 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;

 	for (tmp=0; tmp<cnt; tmp++) {   /* skip unused bytes */
 	    chr++;
         }

 	for (; boff<(NBPW-cnt) && boff<bsize; boff++, chr++) {
 	    buffer[boff] = *chr;
 	}
     }

     /*
      * full words
      */

     num_full_words = (bsize-boff)/NBPW;

     woff = offset+boff;

     for (cnt=0; cnt<num_full_words; woff += NBPW, cnt++ ) {

 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;
 	for(tmp=0; tmp<NBPW; tmp++, chr++) {
 	    buffer[boff++] = *chr;
 	}
 /****** Only if wptr is a word ellined
 	wptr = (long *)&buffer[boff];
 	*wptr = word;
 	boff += NBPW;
 *****/

     }

     /*
      * partial word at end of buffer
      */

     if ( cnt=((bsize-boff) % NBPW) ) {
 #if DEBUG
 printf("partial at end\n");
 #endif
 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;

 	for (tmp=0; tmp<cnt && boff<bsize; tmp++, chr++) {
 	    buffer[boff++] = *chr;
 	}
     }

     return bsize;

 #else
 	return -1;	/* not support on non-64 bits word machines  */

 #endif

 }

 /***********************************************************************
  *
  *
  ***********************************************************************/
 int
 datapidchk(pid, buffer, bsize, offset, errmsg)
 int pid;
 char *buffer;
 int bsize;
 int offset;
 char **errmsg;
 {
 #if CRAY

    int cnt;
    int tmp;
    char *chr;
    long *wptr;
    long word;
    int woff;	/* file offset for the word */
    int boff;	/* buffer offset or index */
    int num_full_words;


     if ( errmsg != NULL ) {
         *errmsg = Errmsg;
     }


     num_full_words = bsize/NBPW;
     boff = 0;

     if ( cnt=(offset % NBPW) ) {	/* partial word */
 	woff = offset - cnt;
 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;

 	for (tmp=0; tmp<cnt; tmp++) {   /* skip unused bytes */
 	    chr++;
         }

 	for (; boff<(NBPW-cnt) && boff<bsize; boff++, chr++) {
 	    if (buffer[boff] != *chr) {
 		sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
 		    offset+boff, *chr, buffer[boff]);
 		return offset+boff;
 	    }
 	}
     }

     /*
      * full words
      */

     num_full_words = (bsize-boff)/NBPW;

     woff = offset+boff;

     for (cnt=0; cnt<num_full_words; woff += NBPW, cnt++ ) {
 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;
 	for(tmp=0; tmp<NBPW; tmp++, boff++, chr++) {
 	    if ( buffer[boff] != *chr ) {
 	        sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
 	            woff, *chr, buffer[boff]);
 	        return woff;
 	    }
 	}

 /****** only if a word elined
 	wptr = (long *)&buffer[boff];
 	if ( *wptr != word ) {
 	    sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
 	        woff, word, *wptr);
 	    return woff;
 	}
 	boff += NBPW;
 ******/
     }

     /*
      * partial word at end of buffer
      */

     if ( cnt=((bsize-boff) % NBPW) ) {
 #if DEBUG
 printf("partial at end\n");
 #endif
 	word = ((LOWER16BITS(pid) << 48) | (LOWER32BITS(woff) << 16) | LOWER16BITS(pid));

 	chr = (char *)&word;


 	for (tmp=0; tmp<cnt && boff<bsize; boff++, tmp++, chr++) {
 	    if ( buffer[boff] != *chr ) {
 		sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
 		    offset+boff, *chr, buffer[boff]);
 		return offset+boff;
 	    }
 	}
     }

     sprintf(Errmsg, "all %d bytes match desired pattern", bsize);
     return -1;      /* buffer is ok */

 #else

     if ( errmsg != NULL ) {
         *errmsg = Errmsg;
     }
     sprintf(Errmsg, "Not supported on this OS.");
     return 0;

 #endif


 }       /* end of datapidchk */

 #if UNIT_TEST

 /***********************************************************************
  * main for doing unit testing
  ***********************************************************************/
 int
 main(ac, ag)
 int ac;
 char **ag;
 {

 int size=1234;
 char *buffer;
 int ret;
 char *errmsg;

     if ((buffer=(char *)malloc(size)) == NULL ) {
         perror("malloc");
         exit(2);
     }


     datapidgen(-1, buffer, size, 3);

 /***
 fwrite(buffer, size, 1, stdout);
 fwrite("\n", 1, 1, stdout);
 ****/

     printf("datapidgen(-1, buffer, size, 3)\n");

     ret=datapidchk(-1, buffer, size, 3, &errmsg);
     printf("datapidchk(-1, buffer, %d, 3, &errmsg) returned %d %s\n",
         size, ret, errmsg);
     ret=datapidchk(-1, &buffer[1], size-1, 4, &errmsg);
     printf("datapidchk(-1, &buffer[1], %d, 4, &errmsg) returned %d %s\n",
         size-1, ret, errmsg);

     buffer[25]= 0x0;
     buffer[26]= 0x0;
     buffer[27]= 0x0;
     buffer[28]= 0x0;
     printf("changing char 25-28\n");

     ret=datapidchk(-1, &buffer[1], size-1, 4, &errmsg);
     printf("datapidchk(-1, &buffer[1], %d, 4, &errmsg) returned %d %s\n",
         size-1, ret, errmsg);

 printf("------------------------------------------\n");

     datapidgen(getpid(), buffer, size, 5);

 /*******
 fwrite(buffer, size, 1, stdout);
 fwrite("\n", 1, 1, stdout);
 ******/

     printf("\ndatapidgen(getpid(), buffer, size, 5)\n");

     ret=datapidchk(getpid(), buffer, size, 5, &errmsg);
     printf("datapidchk(getpid(), buffer, %d, 5, &errmsg) returned %d %s\n",
         size, ret, errmsg);

     ret=datapidchk(getpid(), &buffer[1], size-1, 6, &errmsg);
     printf("datapidchk(getpid(), &buffer[1], %d, 6, &errmsg) returned %d %s\n",
         size-1, ret, errmsg);

     buffer[25]= 0x0;
     printf("changing char 25\n");

     ret=datapidchk(getpid(), &buffer[1], size-1, 6, &errmsg);
     printf("datapidchk(getpid(), &buffer[1], %d, 6, &errmsg) returned %d %s\n",
         size-1, ret, errmsg);

     exit(0);
 }

 #endif
	/*
	* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of version 2 of the GNU General Public License as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it would be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	*
	* Further, this software is distributed without any warranty that it is
	* free of the rightful claim of any third person regarding infringement
	* or the like. Any license provided herein, whether implied or
	* otherwise, applies only to this software file. Patent licenses, if
	* any, provided herein do not apply to combinations of this program with
	* other software, or any other product whatsoever.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write the Free Software Foundation, Inc., 59
	* Temple Place - Suite 330, Boston MA 02111-1307, USA.
	*
	* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
	* Mountain View, CA 94043, or:
	*
	* http://www.sgi.com
	*
	* For further information regarding this notice, see:
	*
	* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
	*/
	/************

	64 bits in a Cray word

	12345678901234567890123456789012
	1234567890123456789012345678901234567890123456789012345678901234
	________________________________________________________________
	< pid >< word-offset in file (same #) >< pid >

	1234567890123456789012345678901234567890123456789012345678901234
	________________________________________________________________
	< pid >< offset in file of this word >< pid >


	8 bits to a bytes == character
	NBPW 8
	************/

	#include <stdio.h>
	#include <sys/param.h>
	#ifdef UNIT_TEST
	#include <unistd.h>
	#include <stdlib.h>
	#endif

	static char Errmsg[80];

	#define LOWER16BITS(X) (X & 0177777)
	#define LOWER32BITS(X) (X & 0xffffffff)

	/***
	#define HIGHBITS(WRD, bits) ( (-1 << (64-bits)) & WRD)
	#define LOWBITS(WRD, bits) ( (-1 >> (64-bits)) & WRD)
	****/

	#define NBPBYTE 8 /* number bits per byte */

	#ifndef DEBUG
	#define DEBUG 0
	#endif

	/***********************************************************************
	*
	*
	* 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 bytes
	* 1234567890123456789012345678901234567890123456789012345678901234 bits
	* ________________________________________________________________ 1 word
	* < pid >< offset in file of this word >< pid >
	*
	* the words are put together where offset zero is the start.
	* thus, offset 16 is the start of the second full word
	* Thus, offset 8 is in middle of word 1
	***********************************************************************/
	int
	datapidgen(pid, buffer, bsize, offset)
	int pid;
	char *buffer;
	int bsize;
	int offset;
	{
	#if CRAY

	int cnt;
	int tmp;
	char *chr;
	long *wptr;
	long word;
	int woff; /* file offset for the word */
	int boff; /* buffer offset or index */
	int num_full_words;

	num_full_words = bsize/NBPW;
	boff = 0;

	if ( cnt=(offset % NBPW) ) { /* partial word */

	woff = offset - cnt;
	#if DEBUG
	printf("partial at beginning, cnt = %d, woff = %d\n", cnt, woff);
	#endif

	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;

	for (tmp=0; tmp<cnt; tmp++) { /* skip unused bytes */
	chr++;
	}

	for (; boff<(NBPW-cnt) && boff<bsize; boff++, chr++) {
	buffer[boff] = *chr;
	}
	}

	/*
	* full words
	*/

	num_full_words = (bsize-boff)/NBPW;

	woff = offset+boff;

	for (cnt=0; cnt<num_full_words; woff += NBPW, cnt++ ) {

	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;
	for(tmp=0; tmp<NBPW; tmp++, chr++) {
	buffer[boff++] = *chr;
	}
	/****** Only if wptr is a word ellined
	wptr = (long *)&buffer[boff];
	*wptr = word;
	boff += NBPW;
	*****/

	}

	/*
	* partial word at end of buffer
	*/

	if ( cnt=((bsize-boff) % NBPW) ) {
	#if DEBUG
	printf("partial at end\n");
	#endif
	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;

	for (tmp=0; tmp<cnt && boff<bsize; tmp++, chr++) {
	buffer[boff++] = *chr;
	}
	}

	return bsize;

	#else
	return -1; /* not support on non-64 bits word machines */

	#endif

	}

	/***********************************************************************
	*
	*
	***********************************************************************/
	int
	datapidchk(pid, buffer, bsize, offset, errmsg)
	int pid;
	char *buffer;
	int bsize;
	int offset;
	char **errmsg;
	{
	#if CRAY

	int cnt;
	int tmp;
	char *chr;
	long *wptr;
	long word;
	int woff; /* file offset for the word */
	int boff; /* buffer offset or index */
	int num_full_words;


	if ( errmsg != NULL ) {
	*errmsg = Errmsg;
	}


	num_full_words = bsize/NBPW;
	boff = 0;

	if ( cnt=(offset % NBPW) ) { /* partial word */
	woff = offset - cnt;
	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;

	for (tmp=0; tmp<cnt; tmp++) { /* skip unused bytes */
	chr++;
	}

	for (; boff<(NBPW-cnt) && boff<bsize; boff++, chr++) {
	if (buffer[boff] != *chr) {
	sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
	offset+boff, *chr, buffer[boff]);
	return offset+boff;
	}
	}
	}

	/*
	* full words
	*/

	num_full_words = (bsize-boff)/NBPW;

	woff = offset+boff;

	for (cnt=0; cnt<num_full_words; woff += NBPW, cnt++ ) {
	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;
	for(tmp=0; tmp<NBPW; tmp++, boff++, chr++) {
	if ( buffer[boff] != *chr ) {
	sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
	woff, *chr, buffer[boff]);
	return woff;
	}
	}

	/****** only if a word elined
	wptr = (long *)&buffer[boff];
	if ( *wptr != word ) {
	sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
	woff, word, *wptr);
	return woff;
	}
	boff += NBPW;
	******/
	}

	/*
	* partial word at end of buffer
	*/

	if ( cnt=((bsize-boff) % NBPW) ) {
	#if DEBUG
	printf("partial at end\n");
	#endif
	word = ((LOWER16BITS(pid) << 48) \| (LOWER32BITS(woff) << 16) \| LOWER16BITS(pid));

	chr = (char *)&word;


	for (tmp=0; tmp<cnt && boff<bsize; boff++, tmp++, chr++) {
	if ( buffer[boff] != *chr ) {
	sprintf(Errmsg, "Data mismatch at offset %d, exp:%#o, act:%#o",
	offset+boff, *chr, buffer[boff]);
	return offset+boff;
	}
	}
	}

	sprintf(Errmsg, "all %d bytes match desired pattern", bsize);
	return -1; /* buffer is ok */

	#else

	if ( errmsg != NULL ) {
	*errmsg = Errmsg;
	}
	sprintf(Errmsg, "Not supported on this OS.");
	return 0;

	#endif


	} /* end of datapidchk */

	#if UNIT_TEST

	/***********************************************************************
	* main for doing unit testing
	***********************************************************************/
	int
	main(ac, ag)
	int ac;
	char **ag;
	{

	int size=1234;
	char *buffer;
	int ret;
	char *errmsg;

	if ((buffer=(char *)malloc(size)) == NULL ) {
	perror("malloc");
	exit(2);
	}


	datapidgen(-1, buffer, size, 3);

	/***
	fwrite(buffer, size, 1, stdout);
	fwrite("\n", 1, 1, stdout);
	****/

	printf("datapidgen(-1, buffer, size, 3)\n");

	ret=datapidchk(-1, buffer, size, 3, &errmsg);
	printf("datapidchk(-1, buffer, %d, 3, &errmsg) returned %d %s\n",
	size, ret, errmsg);
	ret=datapidchk(-1, &buffer[1], size-1, 4, &errmsg);
	printf("datapidchk(-1, &buffer[1], %d, 4, &errmsg) returned %d %s\n",
	size-1, ret, errmsg);

	buffer[25]= 0x0;
	buffer[26]= 0x0;
	buffer[27]= 0x0;
	buffer[28]= 0x0;
	printf("changing char 25-28\n");

	ret=datapidchk(-1, &buffer[1], size-1, 4, &errmsg);
	printf("datapidchk(-1, &buffer[1], %d, 4, &errmsg) returned %d %s\n",
	size-1, ret, errmsg);

	printf("------------------------------------------\n");

	datapidgen(getpid(), buffer, size, 5);

	/*******
	fwrite(buffer, size, 1, stdout);
	fwrite("\n", 1, 1, stdout);
	******/

	printf("\ndatapidgen(getpid(), buffer, size, 5)\n");

	ret=datapidchk(getpid(), buffer, size, 5, &errmsg);
	printf("datapidchk(getpid(), buffer, %d, 5, &errmsg) returned %d %s\n",
	size, ret, errmsg);

	ret=datapidchk(getpid(), &buffer[1], size-1, 6, &errmsg);
	printf("datapidchk(getpid(), &buffer[1], %d, 6, &errmsg) returned %d %s\n",
	size-1, ret, errmsg);

	buffer[25]= 0x0;
	printf("changing char 25\n");

	ret=datapidchk(getpid(), &buffer[1], size-1, 6, &errmsg);
	printf("datapidchk(getpid(), &buffer[1], %d, 6, &errmsg) returned %d %s\n",
	size-1, ret, errmsg);

	exit(0);
	}

	#endif