[blktrace.git] / btt / misc.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 <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#define INLINE_DECLARE
#include "globals.h"

int in_devices(struct blk_io_trace *t)
{
	int i;
	unsigned int mjr, mnr;
	char *p = devices;

	if (p == NULL) return 1;	/* Allow anything */

	for (;;) {
		i = sscanf(p, "%u,%u;", &mjr, &mnr);
		ASSERT(i == 2);

		if ((mjr == MAJOR(t->device) && (mnr == MINOR(t->device))))
			return 1;

		p = strchr(p, ';');
		if (!p)
			break;
		p++;
	}

	return 0;
}

void add_file(struct file_info **fipp, FILE *fp, char *oname)
{
	struct file_info *fip;
	
	fip = malloc(sizeof(struct file_info) + strlen(oname) + 1);

	fip->next = *fipp;
	*fipp = fip;

	fip->ofp = fp;
	strcpy(fip->oname, oname);
}

void clean_files(struct file_info **fipp)
{
	struct stat buf;
	struct file_info *fip;

	while ((fip = *fipp) != NULL) {
		*fipp = fip->next;

		fclose(fip->ofp);
		if (!stat(fip->oname, &buf) && (buf.st_size == 0))
			unlink(fip->oname);
		free(fip);
	}
}

void dbg_ping(void) {}
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>
	22	#include <string.h>
b2ecdd0f ADB	23	#include <sys/types.h>
b2ecdd0f ADB	24	#include <sys/stat.h>
63eba147 JA	25	#include <unistd.h>
	26
	27	#define INLINE_DECLARE
	28	#include "globals.h"
	29
63eba147 JA	30	int in_devices(struct blk_io_trace *t)
	31	{
	32	int i;
	33	unsigned int mjr, mnr;
	34	char *p = devices;
	35
	36	if (p == NULL) return 1; /* Allow anything */
	37
	38	for (;;) {
	39	i = sscanf(p, "%u,%u;", &mjr, &mnr);
	40	ASSERT(i == 2);
	41
	42	if ((mjr == MAJOR(t->device) && (mnr == MINOR(t->device))))
	43	return 1;
	44
	45	p = strchr(p, ';');
	46	if (!p)
	47	break;
	48	p++;
	49	}
	50
	51	return 0;
	52	}
	53
b2ecdd0f ADB	54	void add_file(struct file_info *fipp, FILE fp, char *oname)
b2ecdd0f ADB	55	{
6eb42155 ADB	56	struct file_info *fip;
	57
	58	fip = malloc(sizeof(struct file_info) + strlen(oname) + 1);
b2ecdd0f	59
b2ecdd0f ADB	60	fip->next = *fipp;
b2ecdd0f ADB	61	*fipp = fip;
6eb42155 ADB	62
	63	fip->ofp = fp;
	64	strcpy(fip->oname, oname);
b2ecdd0f ADB	65	}
	66
	67	void clean_files(struct file_info **fipp)
	68	{
	69	struct stat buf;
	70	struct file_info *fip;
	71
	72	while ((fip = *fipp) != NULL) {
	73	*fipp = fip->next;
	74
	75	fclose(fip->ofp);
	76	if (!stat(fip->oname, &buf) && (buf.st_size == 0))
	77	unlink(fip->oname);
b2ecdd0f ADB	78	free(fip);
	79	}
	80	}
6eb42155 ADB	81
6eb42155 ADB	82	void dbg_ping(void) {}