diff options
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_diskstats.c.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_diskstats.c.svn-base | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_diskstats.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_diskstats.c.svn-base deleted file mode 100644 index ca6bff30..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/plugin_diskstats.c.svn-base +++ /dev/null @@ -1,155 +0,0 @@ -/* $Id$ - * $URL$ - * - * plugin for /proc/diskstats parsing - * - * Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at> - * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> - * - * This file is part of LCD4Linux. - * - * LCD4Linux 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, or (at your option) - * any later version. - * - * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* - * exported functions: - * - * int plugin_init_diskstats (void) - * adds functions to access /proc/stat - * - */ - - -#include "config.h" - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <errno.h> - -#include "debug.h" -#include "plugin.h" -#include "hash.h" - - -static HASH DISKSTATS; -static FILE *stream = NULL; - - -static int parse_diskstats(void) -{ - int age; - - /* reread every 10 msec only */ - age = hash_age(&DISKSTATS, NULL); - if (age > 0 && age <= 10) - return 0; - - if (stream == NULL) - stream = fopen("/proc/diskstats", "r"); - if (stream == NULL) { - error("fopen(/proc/diskstats) failed: %s", strerror(errno)); - return -1; - } - - rewind(stream); - - while (!feof(stream)) { - char buffer[1024]; - char dev[64]; - char *beg, *end; - unsigned int num, len; - - if (fgets(buffer, sizeof(buffer), stream) == NULL) - break; - - /* fetch device name (3rd column) as key */ - num = 0; - beg = buffer; - end = beg; - while (*beg) { - while (*beg == ' ') - beg++; - end = beg + 1; - while (*end && *end != ' ') - end++; - if (num++ == 2) - break; - beg = end ? end + 1 : NULL; - } - len = end ? (unsigned) (end - beg) : strlen(beg); - - if (len >= sizeof(dev)) - len = sizeof(dev) - 1; - strncpy(dev, beg, len); - dev[len] = '\0'; - - hash_put_delta(&DISKSTATS, dev, buffer); - - } - return 0; -} - - -static void my_diskstats(RESULT * result, RESULT * arg1, RESULT * arg2, RESULT * arg3) -{ - char *dev, *key; - int delay; - double value; - - if (parse_diskstats() < 0) { - SetResult(&result, R_STRING, ""); - return; - } - - dev = R2S(arg1); - key = R2S(arg2); - delay = R2N(arg3); - - value = hash_get_regex(&DISKSTATS, dev, key, delay); - - SetResult(&result, R_NUMBER, &value); -} - - -int plugin_init_diskstats(void) -{ - int i; - char *header[] = { "major", "minor", "name", - "reads", "read_merges", "read_sectors", "read_ticks", - "writes", "write_merges", "write_sectors", "write_ticks", - "in_flight", "io_ticks", "time_in_queue", "" - }; - - hash_create(&DISKSTATS); - hash_set_delimiter(&DISKSTATS, " \n"); - for (i = 0; *header[i] != '\0'; i++) { - hash_set_column(&DISKSTATS, i, header[i]); - } - - AddFunction("diskstats", 3, my_diskstats); - return 0; -} - -void plugin_exit_diskstats(void) -{ - if (stream != NULL) { - fclose(stream); - stream = NULL; - } - hash_destroy(&DISKSTATS); -} |
