src/saidar/saidar.c

/*
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2002 i-scream
 *
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/termios.h>
#include <signal.h>
#include <errno.h>
#include <statgrab.h>
#include <sys/times.h>
#include <limits.h>
#include <time.h>

#ifdef HAVE_NCURSES_H
#include <ncurses.h>
#else
#include <curses.h>
#endif

typedef struct{
        cpu_percent_t *cpu_percents;
        mem_stat_t *mem_stats;
        swap_stat_t *swap_stats;
        load_stat_t *load_stats;
        process_stat_t *process_stats;
        page_stat_t *page_stats;

        network_stat_t *network_stats;
        int network_entries;

        diskio_stat_t *diskio_stats;
        int diskio_entries;

        disk_stat_t *disk_stats;
        int disk_entries;

        general_stat_t *general_stats;
        user_stat_t *user_stats;
}stats_t;
        
stats_t stats;

char *size_conv(long long number){
        char type[] = {'B', 'K', 'M', 'G', 'T'};
        int x=0;
        static char string[10];

        for(;x<5;x++){
                if( (number/1024) < (100)) {
                        break;
                }
                number = (number/1024);
        }

        snprintf(string, 10, "%lld%c", number, type[x]);        
        return string;
        
}

char *hr_uptime(time_t time){
        int day = 0, hour = 0, min = 0;
        static char uptime_str[25];
        int sec = (int) time;
        
        day = sec / (24*60*60);
        sec = sec % (24*60*60);
        hour = sec / (60*60);
        sec = sec % (60*60);
        min = sec / 60;
        sec = sec % 60;

        if(day){
                snprintf(uptime_str, 25, "%dd %02d:%02d:%02d", day, hour, min, sec);
        }else{
                snprintf(uptime_str, 25, "%02d:%02d:%02d", hour, min, sec);
        }
        return uptime_str;
}

void display_headings(){
        move(0,0);
        printw("Hostname  :");
        move(0,27);
        printw("Uptime : ");
        move(0,54);
        printw("Date : ");

        /* Load */
        move(2,0);
        printw("Load 1    :");
        move(3,0);
        printw("Load 5    :");
        move(4,0);
        printw("Load 15   :");

        /* CPU */
        move(2,21);
        printw("CPU Idle  :");
        move(3,21);
        printw("CPU System:");
        move(4,21);
        printw("CPU User  :");

        /* Process */
        move(2, 42);
        printw("Running   :");
        move(3, 42);
        printw("Sleeping  :");
        move(4, 42);
        printw("Stopped   :");
        move(2, 62);
        printw("Zombie    :");
        move(3, 62);
        printw("Total     :");
        move(4, 62);
        printw("No. Users :");

        /* Mem */
        move(6, 0);
        printw("Mem Total :");
        move(7, 0);
        printw("Mem Used  :");
        move(8, 0);
        printw("Mem Free  :");

        /* Swap */
        move(6, 21);
        printw("Swap Total:");
        move(7, 21);
        printw("Swap Used :");
        move(8, 21);
        printw("Swap Free :");

        /* VM */
        move(6, 42);
        printw("Mem Used  :");
        move(7, 42);
        printw("Swap Used :");
        move(8, 42);
        printw("Total Used:");

        /* Paging */
        move(6, 62);
        printw("Paging in :");
        move(7, 62);
        printw("Paging out:");

        /* Disk IO */
        move(10,0);
        printw("Disk Name");
        move(10,15);
        printw("Read");
        move(10,28);
        printw("Write");        

        /* Network IO */
        move(10, 42);
        printw("Network Interface");
        move(10, 67);
        printw("rx");
        move(10,77);
        printw("tx");

        move(12+stats.network_entries, 42);
        printw("Mount Point");
        move(12+stats.network_entries, 65);
        printw("Free");
        move(12+stats.network_entries, 75);
        printw("Used");

        refresh();
}

void display_data(){
        char cur_time[20];
        struct tm *tm_time;
        time_t epoc_time;
        int counter;
        long long r,w;
        long long rt, wt;
        diskio_stat_t *diskio_stat_ptr;
        network_stat_t *network_stat_ptr;
        disk_stat_t *disk_stat_ptr;

        move(0,12);
        printw("%s", stats.general_stats->hostname);
        move(0,36);
        printw("%s", hr_uptime(stats.general_stats->uptime));
        epoc_time=time(NULL);
        tm_time = localtime(&epoc_time);
        strftime(cur_time, 20, "%Y-%m-%d %T", tm_time);
        move(0,61);
        printw("%s", cur_time);

        /* Load */
        move(2,12);
        printw("%6.2f", stats.load_stats->min1);
        move(3,12);
        printw("%6.2f", stats.load_stats->min5);
        move(4,12);
        printw("%6.2f", stats.load_stats->min15);

        /* CPU */
        move(2,33);
        printw("%6.2f%%", stats.cpu_percents->idle);
        move(3,33);
        printw("%6.2f%%", (stats.cpu_percents->kernel + stats.cpu_percents->iowait + stats.cpu_percents->swap));
        move(4,33);
        printw("%6.2f%%", (stats.cpu_percents->user + stats.cpu_percents->nice));

        /* Process */
        move(2, 54);
        printw("%5d", stats.process_stats->running);
        move(2,74);
        printw("%5d", stats.process_stats->zombie);
        move(3, 54);
        printw("%5d", stats.process_stats->sleeping);
        move(3, 74);
        printw("%5d", stats.process_stats->total);
        move(4, 54);
        printw("%5d", stats.process_stats->stopped);
        move(4,74);
        printw("%5d", stats.user_stats->num_entries);

        /* Mem */

        move(6, 12);
        printw("%7s", size_conv(stats.mem_stats->total));       
        move(7, 12);
        printw("%7s", size_conv(stats.mem_stats->used));        
        move(8, 12);
        printw("%7s", size_conv(stats.mem_stats->free));
        
        /* Swap */
        move(6, 32);
        printw("%8s", size_conv(stats.swap_stats->total));
        move(7, 32);
        printw("%8s", size_conv(stats.swap_stats->used));
        move(8, 32);
        printw("%8s", size_conv(stats.swap_stats->free));

        /* VM */
        move(6, 54);
        printw("%5.2f%%", (100.00 * (float)(stats.mem_stats->used)/stats.mem_stats->total));
        move(7, 54);
        printw("%5.2f%%", (100.00 * (float)(stats.swap_stats->used)/stats.swap_stats->total));
        move(8, 54);
        printw("%5.2f%%", (100.00 * (float)(stats.mem_stats->used+stats.swap_stats->used)/(stats.mem_stats->total+stats.swap_stats->total)));

        /* Paging */
        move(6, 74);
        printw("%5d", (stats.page_stats->systime)? (stats.page_stats->pages_pagein / stats.page_stats->systime): stats.page_stats->pages_pagein);
        move(7, 74);
        printw("%5d", (stats.page_stats->systime)? (stats.page_stats->pages_pageout / stats.page_stats->systime) : stats.page_stats->pages_pageout);

        /* Disk IO */
        diskio_stat_ptr = stats.diskio_stats;
        r=0;
        w=0;
        for(counter=0;counter<stats.diskio_entries;counter++){
                move(11+counter, 0);
                printw("%s", diskio_stat_ptr->disk_name);
                move(11+counter, 12);
                rt = (diskio_stat_ptr->systime)? (diskio_stat_ptr->read_bytes/diskio_stat_ptr->systime): diskio_stat_ptr->read_bytes;
                printw("%7s", size_conv(rt));
                r+=rt;
                move(11+counter, 26);
                wt = (diskio_stat_ptr->systime)? (diskio_stat_ptr->write_bytes/diskio_stat_ptr->systime): diskio_stat_ptr->write_bytes;
                printw("%7s", size_conv(wt));
                w+=wt;
                diskio_stat_ptr++;
        }
        move(12+counter, 0);
        printw("Total");
        move(12+counter, 12);
        printw("%7s", size_conv(r));
        move(12+counter, 26);
        printw("%7s", size_conv(w));

        /* Network */
        network_stat_ptr = stats.network_stats;
        for(counter=0;counter<stats.network_entries;counter++){
                move(11+counter, 42);
                printw("%s", network_stat_ptr->interface_name);
                move(11+counter, 62);
                rt = (network_stat_ptr->systime)? (network_stat_ptr->rx / network_stat_ptr->systime): network_stat_ptr->rx;
                printw("%7s", size_conv(rt));
                move(11+counter, 72);
                wt = (network_stat_ptr->systime)? (network_stat_ptr->tx / network_stat_ptr->systime): network_stat_ptr->tx; 
                printw("%7s", size_conv(wt));
                network_stat_ptr++;
        }

        disk_stat_ptr = stats.disk_stats;
        for(counter=0;counter<stats.disk_entries;counter++){
                move(13+stats.network_entries+counter, 42);
                printw("%s", disk_stat_ptr->mnt_point);
                move(13+stats.network_entries+counter, 62);
                printw("%7s", size_conv(disk_stat_ptr->avail));
                move(13+stats.network_entries+counter, 73);
                printw("%5.2f%%", 100.00 * ((float)disk_stat_ptr->used / (float)disk_stat_ptr->size));
                disk_stat_ptr++;
        }

        refresh();
}

void sig_winch_handler(int sig){
        clear();
        display_headings();
        display_data();
        signal(SIGWINCH, sig_winch_handler);
}

int get_stats(){
                if((stats.cpu_percents = cpu_percent_usage()) == NULL) return 0;
                if((stats.mem_stats = get_memory_stats()) == NULL) return 0;
                if((stats.swap_stats = get_swap_stats()) == NULL) return 0;
                if((stats.load_stats = get_load_stats()) == NULL) return 0;
                if((stats.process_stats = get_process_stats()) == NULL) return 0;
                if((stats.page_stats = get_page_stats_diff()) == NULL) return 0;
                if((stats.network_stats = get_network_stats_diff(&(stats.network_entries))) == NULL) return 0;
                if((stats.diskio_stats = get_diskio_stats_diff(&(stats.diskio_entries))) == NULL) return 0;
                if((stats.disk_stats = get_disk_stats(&(stats.disk_entries))) == NULL) return 0;
                if((stats.general_stats = get_general_stats()) == NULL) return 0;
                if((stats.user_stats = get_user_stats()) == NULL) return 0;

                return 1;
}

void version_num(char *progname){
        fprintf(stderr, "%s version %s\n", PACKAGE_VERSION);
        fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
        exit(1);
}

void usage(char *progname){
        fprintf(stderr, "Usage: %s [-d delay] [-v] [-h]\n\n", progname);
        fprintf(stderr, "  -d    Sets the update time in seconds\n");
        fprintf(stderr, "  -v    Prints version number\n");
        fprintf(stderr, "  -h    Displays this help information.\n");
        fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
        exit(1);

}

int main(int argc, char **argv){

        extern char *optarg;
        extern int optind;
        int c;

        WINDOW *window;

        int stdin_fileno;
        fd_set infds;
        struct timeval timeout;

        extern int errno;
        char ch;

        int delay=2;

        while ((c = getopt(argc, argv, "d:")) != EOF){
                switch (c){
                        case 'd':
                                delay = atoi(optarg);
                                if (delay == 0){
                                        fprintf(stderr, "Time must be 1 second or greater\n");
                                        exit(1);
                                }
                                delay--;
                                break;
                        case 'v':
                                version_num(argv[0]);   
                                break;
                        case 'h':
                        default:
                                usage(argv[0]);
                                return 1;
                                break;
                                
                }
        }

        signal(SIGWINCH, sig_winch_handler);
        initscr();
        nonl();
        cbreak();
        noecho();
        window=newwin(0, 0, 0, 0);
        clear();

        if(!get_stats()){
                fprintf(stderr, "Failed to get all the stats. Please check correct permissions\n");
                endwin();
                return 1;
        }

        display_headings();
        stdin_fileno=fileno(stdin);

        for(;;){

                FD_ZERO(&infds);
                FD_SET(stdin_fileno, &infds);
                timeout.tv_sec = delay;
                timeout.tv_usec = 0;
                
                if((select((stdin_fileno+1), &infds, NULL, NULL, &timeout)) == -1){
                        if(errno!=EINTR){
                                perror("select failed");
                                exit(1);
                        }
                }

                if(FD_ISSET(stdin_fileno, &infds)){
                        ch=getch();
                        if (ch == 'q'){
                                endwin();
                                return 0;
                        }
                }

                get_stats();

                display_data();

                /* To keep the numbers slightly accurate we do not want them updating more 
                 * frequently than once a second.
                 */
                sleep(1);

        }       


        endwin();
        return 0;
}       
Revision:	1.3
Committed:	Thu Oct 9 16:08:16 2003 UTC (21 years ago) by pajs
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+25 -0 lines
Log Message:	Added some usage flags, and a -v for version and -h for help.
#	User	Rev	Content
1	tdb	1.2	/*
2			* i-scream central monitoring system
3			* http://www.i-scream.org
4			* Copyright (C) 2000-2002 i-scream
5			*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (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			#ifdef HAVE_CONFIG_H
22			#include "config.h"
23			#endif
24
25	pajs	1.1	#include <stdio.h>
26			#include <string.h>
27			#include <sys/ioctl.h>
28			#include <unistd.h>
29			#include <stdlib.h>
30			#include <sys/termios.h>
31			#include <signal.h>
32			#include <errno.h>
33			#include <statgrab.h>
34			#include <sys/times.h>
35			#include <limits.h>
36			#include <time.h>
37	tdb	1.2
38			#ifdef HAVE_NCURSES_H
39			#include <ncurses.h>
40			#else
41	pajs	1.1	#include <curses.h>
42	tdb	1.2	#endif
43	pajs	1.1
44			typedef struct{
45			cpu_percent_t *cpu_percents;
46			mem_stat_t *mem_stats;
47			swap_stat_t *swap_stats;
48			load_stat_t *load_stats;
49			process_stat_t *process_stats;
50			page_stat_t *page_stats;
51
52			network_stat_t *network_stats;
53			int network_entries;
54
55			diskio_stat_t *diskio_stats;
56			int diskio_entries;
57
58			disk_stat_t *disk_stats;
59			int disk_entries;
60
61			general_stat_t *general_stats;
62			user_stat_t *user_stats;
63			}stats_t;
64
65			stats_t stats;
66
67			char *size_conv(long long number){
68			char type[] = {'B', 'K', 'M', 'G', 'T'};
69			int x=0;
70			static char string[10];
71
72			for(;x<5;x++){
73			if( (number/1024) < (100)) {
74			break;
75			}
76			number = (number/1024);
77			}
78
79			snprintf(string, 10, "%lld%c", number, type[x]);
80			return string;
81
82			}
83
84			char *hr_uptime(time_t time){
85			int day = 0, hour = 0, min = 0;
86			static char uptime_str[25];
87			int sec = (int) time;
88
89			day = sec / (246060);
90			sec = sec % (246060);
91			hour = sec / (60*60);
92			sec = sec % (60*60);
93			min = sec / 60;
94			sec = sec % 60;
95
96			if(day){
97			snprintf(uptime_str, 25, "%dd %02d:%02d:%02d", day, hour, min, sec);
98			}else{
99			snprintf(uptime_str, 25, "%02d:%02d:%02d", hour, min, sec);
100			}
101			return uptime_str;
102			}
103
104			void display_headings(){
105			move(0,0);
106			printw("Hostname :");
107			move(0,27);
108			printw("Uptime : ");
109			move(0,54);
110			printw("Date : ");
111
112			/* Load */
113			move(2,0);
114			printw("Load 1 :");
115			move(3,0);
116			printw("Load 5 :");
117			move(4,0);
118			printw("Load 15 :");
119
120			/* CPU */
121			move(2,21);
122			printw("CPU Idle :");
123			move(3,21);
124			printw("CPU System:");
125			move(4,21);
126			printw("CPU User :");
127
128			/* Process */
129			move(2, 42);
130			printw("Running :");
131			move(3, 42);
132			printw("Sleeping :");
133			move(4, 42);
134			printw("Stopped :");
135			move(2, 62);
136			printw("Zombie :");
137			move(3, 62);
138			printw("Total :");
139			move(4, 62);
140			printw("No. Users :");
141
142			/* Mem */
143			move(6, 0);
144			printw("Mem Total :");
145			move(7, 0);
146			printw("Mem Used :");
147			move(8, 0);
148			printw("Mem Free :");
149
150			/* Swap */
151			move(6, 21);
152			printw("Swap Total:");
153			move(7, 21);
154			printw("Swap Used :");
155			move(8, 21);
156			printw("Swap Free :");
157
158			/* VM */
159			move(6, 42);
160			printw("Mem Used :");
161			move(7, 42);
162			printw("Swap Used :");
163			move(8, 42);
164			printw("Total Used:");
165
166			/* Paging */
167			move(6, 62);
168			printw("Paging in :");
169			move(7, 62);
170			printw("Paging out:");
171
172			/* Disk IO */
173			move(10,0);
174			printw("Disk Name");
175			move(10,15);
176			printw("Read");
177			move(10,28);
178			printw("Write");
179
180			/* Network IO */
181			move(10, 42);
182			printw("Network Interface");
183			move(10, 67);
184			printw("rx");
185			move(10,77);
186			printw("tx");
187
188			move(12+stats.network_entries, 42);
189			printw("Mount Point");
190			move(12+stats.network_entries, 65);
191			printw("Free");
192			move(12+stats.network_entries, 75);
193			printw("Used");
194
195			refresh();
196			}
197
198			void display_data(){
199			char cur_time[20];
200			struct tm *tm_time;
201			time_t epoc_time;
202			int counter;
203			long long r,w;
204			long long rt, wt;
205			diskio_stat_t *diskio_stat_ptr;
206			network_stat_t *network_stat_ptr;
207			disk_stat_t *disk_stat_ptr;
208
209			move(0,12);
210			printw("%s", stats.general_stats->hostname);
211			move(0,36);
212			printw("%s", hr_uptime(stats.general_stats->uptime));
213			epoc_time=time(NULL);
214			tm_time = localtime(&epoc_time);
215			strftime(cur_time, 20, "%Y-%m-%d %T", tm_time);
216			move(0,61);
217			printw("%s", cur_time);
218
219			/* Load */
220			move(2,12);
221			printw("%6.2f", stats.load_stats->min1);
222			move(3,12);
223			printw("%6.2f", stats.load_stats->min5);
224			move(4,12);
225			printw("%6.2f", stats.load_stats->min15);
226
227			/* CPU */
228			move(2,33);
229			printw("%6.2f%%", stats.cpu_percents->idle);
230			move(3,33);
231			printw("%6.2f%%", (stats.cpu_percents->kernel + stats.cpu_percents->iowait + stats.cpu_percents->swap));
232			move(4,33);
233			printw("%6.2f%%", (stats.cpu_percents->user + stats.cpu_percents->nice));
234
235			/* Process */
236			move(2, 54);
237			printw("%5d", stats.process_stats->running);
238			move(2,74);
239			printw("%5d", stats.process_stats->zombie);
240			move(3, 54);
241			printw("%5d", stats.process_stats->sleeping);
242			move(3, 74);
243			printw("%5d", stats.process_stats->total);
244			move(4, 54);
245			printw("%5d", stats.process_stats->stopped);
246			move(4,74);
247			printw("%5d", stats.user_stats->num_entries);
248
249			/* Mem */
250
251			move(6, 12);
252			printw("%7s", size_conv(stats.mem_stats->total));
253			move(7, 12);
254			printw("%7s", size_conv(stats.mem_stats->used));
255			move(8, 12);
256			printw("%7s", size_conv(stats.mem_stats->free));
257
258			/* Swap */
259			move(6, 32);
260			printw("%8s", size_conv(stats.swap_stats->total));
261			move(7, 32);
262			printw("%8s", size_conv(stats.swap_stats->used));
263			move(8, 32);
264			printw("%8s", size_conv(stats.swap_stats->free));
265
266			/* VM */
267			move(6, 54);
268			printw("%5.2f%%", (100.00 * (float)(stats.mem_stats->used)/stats.mem_stats->total));
269			move(7, 54);
270			printw("%5.2f%%", (100.00 * (float)(stats.swap_stats->used)/stats.swap_stats->total));
271			move(8, 54);
272			printw("%5.2f%%", (100.00 * (float)(stats.mem_stats->used+stats.swap_stats->used)/(stats.mem_stats->total+stats.swap_stats->total)));
273
274			/* Paging */
275			move(6, 74);
276			printw("%5d", (stats.page_stats->systime)? (stats.page_stats->pages_pagein / stats.page_stats->systime): stats.page_stats->pages_pagein);
277			move(7, 74);
278			printw("%5d", (stats.page_stats->systime)? (stats.page_stats->pages_pageout / stats.page_stats->systime) : stats.page_stats->pages_pageout);
279
280			/* Disk IO */
281			diskio_stat_ptr = stats.diskio_stats;
282			r=0;
283			w=0;
284			for(counter=0;counter<stats.diskio_entries;counter++){
285			move(11+counter, 0);
286			printw("%s", diskio_stat_ptr->disk_name);
287			move(11+counter, 12);
288			rt = (diskio_stat_ptr->systime)? (diskio_stat_ptr->read_bytes/diskio_stat_ptr->systime): diskio_stat_ptr->read_bytes;
289			printw("%7s", size_conv(rt));
290			r+=rt;
291			move(11+counter, 26);
292			wt = (diskio_stat_ptr->systime)? (diskio_stat_ptr->write_bytes/diskio_stat_ptr->systime): diskio_stat_ptr->write_bytes;
293			printw("%7s", size_conv(wt));
294			w+=wt;
295			diskio_stat_ptr++;
296			}
297			move(12+counter, 0);
298			printw("Total");
299			move(12+counter, 12);
300			printw("%7s", size_conv(r));
301			move(12+counter, 26);
302			printw("%7s", size_conv(w));
303
304			/* Network */
305			network_stat_ptr = stats.network_stats;
306			for(counter=0;counter<stats.network_entries;counter++){
307			move(11+counter, 42);
308			printw("%s", network_stat_ptr->interface_name);
309			move(11+counter, 62);
310			rt = (network_stat_ptr->systime)? (network_stat_ptr->rx / network_stat_ptr->systime): network_stat_ptr->rx;
311			printw("%7s", size_conv(rt));
312			move(11+counter, 72);
313			wt = (network_stat_ptr->systime)? (network_stat_ptr->tx / network_stat_ptr->systime): network_stat_ptr->tx;
314			printw("%7s", size_conv(wt));
315			network_stat_ptr++;
316			}
317
318			disk_stat_ptr = stats.disk_stats;
319			for(counter=0;counter<stats.disk_entries;counter++){
320			move(13+stats.network_entries+counter, 42);
321			printw("%s", disk_stat_ptr->mnt_point);
322			move(13+stats.network_entries+counter, 62);
323			printw("%7s", size_conv(disk_stat_ptr->avail));
324			move(13+stats.network_entries+counter, 73);
325			printw("%5.2f%%", 100.00 * ((float)disk_stat_ptr->used / (float)disk_stat_ptr->size));
326			disk_stat_ptr++;
327			}
328
329			refresh();
330			}
331
332			void sig_winch_handler(int sig){
333			clear();
334			display_headings();
335			display_data();
336			signal(SIGWINCH, sig_winch_handler);
337			}
338
339			int get_stats(){
340			if((stats.cpu_percents = cpu_percent_usage()) == NULL) return 0;
341			if((stats.mem_stats = get_memory_stats()) == NULL) return 0;
342			if((stats.swap_stats = get_swap_stats()) == NULL) return 0;
343			if((stats.load_stats = get_load_stats()) == NULL) return 0;
344			if((stats.process_stats = get_process_stats()) == NULL) return 0;
345			if((stats.page_stats = get_page_stats_diff()) == NULL) return 0;
346			if((stats.network_stats = get_network_stats_diff(&(stats.network_entries))) == NULL) return 0;
347			if((stats.diskio_stats = get_diskio_stats_diff(&(stats.diskio_entries))) == NULL) return 0;
348			if((stats.disk_stats = get_disk_stats(&(stats.disk_entries))) == NULL) return 0;
349			if((stats.general_stats = get_general_stats()) == NULL) return 0;
350			if((stats.user_stats = get_user_stats()) == NULL) return 0;
351
352			return 1;
353			}
354
355	pajs	1.3	void version_num(char *progname){
356			fprintf(stderr, "%s version %s\n", PACKAGE_VERSION);
357			fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
358			exit(1);
359			}
360
361			void usage(char *progname){
362			fprintf(stderr, "Usage: %s [-d delay] [-v] [-h]\n\n", progname);
363			fprintf(stderr, " -d Sets the update time in seconds\n");
364			fprintf(stderr, " -v Prints version number\n");
365			fprintf(stderr, " -h Displays this help information.\n");
366			fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
367			exit(1);
368
369			}
370
371	pajs	1.1	int main(int argc, char **argv){
372
373			extern char *optarg;
374			extern int optind;
375			int c;
376
377			WINDOW *window;
378
379			int stdin_fileno;
380			fd_set infds;
381			struct timeval timeout;
382
383			extern int errno;
384			char ch;
385
386			int delay=2;
387
388			while ((c = getopt(argc, argv, "d:")) != EOF){
389			switch (c){
390			case 'd':
391			delay = atoi(optarg);
392			if (delay == 0){
393			fprintf(stderr, "Time must be 1 second or greater\n");
394			exit(1);
395			}
396			delay--;
397			break;
398	pajs	1.3	case 'v':
399			version_num(argv[0]);
400			break;
401			case 'h':
402			default:
403			usage(argv[0]);
404			return 1;
405			break;
406
407	pajs	1.1	}
408			}
409
410			signal(SIGWINCH, sig_winch_handler);
411			initscr();
412			nonl();
413			cbreak();
414			noecho();
415			window=newwin(0, 0, 0, 0);
416			clear();
417
418			if(!get_stats()){
419			fprintf(stderr, "Failed to get all the stats. Please check correct permissions\n");
420			endwin();
421			return 1;
422			}
423
424			display_headings();
425			stdin_fileno=fileno(stdin);
426
427			for(;;){
428
429			FD_ZERO(&infds);
430			FD_SET(stdin_fileno, &infds);
431			timeout.tv_sec = delay;
432			timeout.tv_usec = 0;
433
434			if((select((stdin_fileno+1), &infds, NULL, NULL, &timeout)) == -1){
435			if(errno!=EINTR){
436			perror("select failed");
437			exit(1);
438			}
439			}
440
441			if(FD_ISSET(stdin_fileno, &infds)){
442			ch=getch();
443			if (ch == 'q'){
444			endwin();
445			return 0;
446			}
447			}
448
449			get_stats();
450
451			display_data();
452
453			/* To keep the numbers slightly accurate we do not want them updating more
454			* frequently than once a second.
455			*/
456			sleep(1);
457
458			}
459
460
461
462			endwin();
463			return 0;
464			}