[blktrace.git] / btt / devmap.c

/*
 * blktrace output analysis: generate a timeline & gather statistics
 *
 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#include <stdio.h>
#include "globals.h"

struct devmap *all_devmaps = NULL;

void dev_map_add(struct devmap *dmp)
{
	struct devmap *this = malloc(sizeof(struct devmap));

	*this = *dmp;
	this->next = all_devmaps;
	all_devmaps = this;
}

struct devmap *dev_map_find(__u32 device)
{
	char this[128];
	struct devmap *dmp;

	sprintf(this, "%u,%u", MAJOR(device), MINOR(device));
	for (dmp = all_devmaps; dmp != NULL; dmp = dmp->next)
		if (!strcmp(this, dmp->devno))
			break;

	return dmp;
}

int dev_map_read(char *fname)
{
	char line[256];
	struct devmap dm;
	FILE *fp = fopen(fname, "r");

	if (!fp) {
		perror(fname);
		return 1;
	}

	while (fscanf(fp, "%255[a-zA-Z0-9 :.,/_-]\n", line) == 1) {
		if (strstr(line, "Device") != NULL) continue;
		if (sscanf(line, "%s %s %u %u %u %u %s %s %u %u %s",
				&dm.device[0], &dm.model[0], &dm.host, &dm.bus,
				&dm.target, &dm.lun, &dm.node[0], &dm.pci[0],
				&dm.irq, &dm.cpu, &dm.devno[0]) != 11)
			break;
		dev_map_add(&dm);
	}

	return 0;
}
Commit	Line	Data
63eba147 JA	1	/*
	2	* blktrace output analysis: generate a timeline & gather statistics
	3	*
	4	* Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
	21	#include <stdio.h>
63eba147	22	#include "globals.h"
6eb42155	23
63eba147	24	struct devmap *all_devmaps = NULL;
6eb42155	25
63eba147 JA	26	void dev_map_add(struct devmap *dmp)
63eba147 JA	27	{
6eb42155	28	struct devmap *this = malloc(sizeof(struct devmap));
63eba147 JA	29
	30	this = dmp;
	31	this->next = all_devmaps;
	32	all_devmaps = this;
	33	}
	34
	35	struct devmap *dev_map_find(__u32 device)
	36	{
	37	char this[128];
	38	struct devmap *dmp;
	39
	40	sprintf(this, "%u,%u", MAJOR(device), MINOR(device));
	41	for (dmp = all_devmaps; dmp != NULL; dmp = dmp->next)
	42	if (!strcmp(this, dmp->devno))
	43	break;
	44
	45	return dmp;
	46	}
	47
	48	int dev_map_read(char *fname)
	49	{
	50	char line[256];
	51	struct devmap dm;
	52	FILE *fp = fopen(fname, "r");
	53
	54	if (!fp) {
	55	perror(fname);
	56	return 1;
	57	}
	58
6119854c	59	while (fscanf(fp, "%255[a-zA-Z0-9 :.,/_-]\n", line) == 1) {
63eba147 JA	60	if (strstr(line, "Device") != NULL) continue;
	61	if (sscanf(line, "%s %s %u %u %u %u %s %s %u %u %s",
	62	&dm.device[0], &dm.model[0], &dm.host, &dm.bus,
	63	&dm.target, &dm.lun, &dm.node[0], &dm.pci[0],
	64	&dm.irq, &dm.cpu, &dm.devno[0]) != 11)
	65	break;
	66	dev_map_add(&dm);
	67	}
	68
	69	return 0;
	70	}