187 lines
5.3 KiB
C
187 lines
5.3 KiB
C
/*
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* Copyright (C) 1999, Michael Jennings
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies of the Software, its documentation and marketing & publicity
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* materials, and acknowledgment shall be given in the documentation, materials
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* and software packages that this Software was used.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include "epplet.h"
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#if 0
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# define D(x) do {printf("%10s | %7d: [debug] ", __FILE__, __LINE__); printf x; fflush(stdout);} while (0)
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#else
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# define D(x) ((void) 0)
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#endif
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#define BEGMATCH(a, b) (!strncasecmp((a), (b), (sizeof(b) - 1)))
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#define NONULL(x) ((x) ? (x) : (""))
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Epplet_gadget close_button, in_bar, out_bar, in_label, out_label;
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int in_val = 0, out_val = 0;
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unsigned long max_in = 1, max_out = 1;
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static void timer_cb(void *data);
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static void close_cb(void *data);
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static void in_cb(void *data, Window w);
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static void out_cb(void *data, Window w);
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static void parse_conf(void);
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static void
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timer_cb(void *data) {
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FILE *fp;
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char buff[1024];
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unsigned long a, b, c, d;
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unsigned long in_blks, out_blks;
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static unsigned long last_in = 0, last_out = 0, in_delta = 0, out_delta = 0;
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if ((fp = fopen("/proc/stat", "r")) == NULL) {
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D(("Failed to open /proc/stat -- %s\n", strerror(errno)));
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return;
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}
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do {
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fgets(buff, sizeof(buff), fp);
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} while (!BEGMATCH(buff, "disk_rblk"));
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sscanf(buff, "%*s %lu %lu %lu %lu", &a, &b, &c, &d);
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in_blks = a + b + c + d - last_in;
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if (last_in) {
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/* We must have some history data to do anything. */
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if (in_blks > max_in) {
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max_in = in_blks;
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Esnprintf(buff, sizeof(buff), "%lu", max_in);
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Epplet_modify_config("max_in", buff);
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}
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if (in_blks != in_delta) {
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in_val = (int) ((((float) in_blks) / max_in) * 100.0);
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Epplet_gadget_data_changed(in_bar);
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Esnprintf(buff, sizeof(buff), "I: %lu K/s", in_blks / 4);
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Epplet_change_label(in_label, buff);
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}
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in_delta = in_blks;
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}
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last_in += in_blks;
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fgets(buff, sizeof(buff), fp);
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sscanf(buff, "%*s %lu %lu %lu %lu", &a, &b, &c, &d);
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out_blks = a + b + c + d - last_out;
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if (last_out) {
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/* We must have some history data to do anything. */
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if (out_blks > max_out) {
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max_out = out_blks;
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Esnprintf(buff, sizeof(buff), "%lu", max_out);
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Epplet_modify_config("max_out", buff);
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}
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if (out_blks != out_delta) {
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out_val = (int) ((((float) out_blks) / max_out) * 100.0);
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Epplet_gadget_data_changed(out_bar);
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Esnprintf(buff, sizeof(buff), "O: %lu K/s", out_blks / 4);
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Epplet_change_label(out_label, buff);
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}
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out_delta = out_blks;
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}
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last_out += out_blks;
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fclose(fp);
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Esync();
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Epplet_timer(timer_cb, NULL, 0.5, "TIMER");
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return;
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data = NULL;
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}
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static void
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close_cb(void *data) {
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Epplet_unremember();
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Esync();
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exit(0);
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data = NULL;
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}
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static void
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in_cb(void *data, Window w) {
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if (w == Epplet_get_main_window()) {
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Epplet_gadget_show(close_button);
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}
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return;
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data = NULL;
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}
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static void
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out_cb(void *data, Window w) {
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if (w == Epplet_get_main_window()) {
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Epplet_gadget_hide(close_button);
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}
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return;
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data = NULL;
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}
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static void
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parse_conf(void) {
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char *s;
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s = Epplet_query_config("max_in");
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if (s) {
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max_in = strtoul(s, (char **) NULL, 10);
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}
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s = Epplet_query_config("max_out");
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if (s) {
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max_out = strtoul(s, (char **) NULL, 10);
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}
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}
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int
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main(int argc, char **argv) {
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int prio;
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prio = getpriority(PRIO_PROCESS, getpid());
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setpriority(PRIO_PROCESS, getpid(), prio + 10);
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atexit(Epplet_cleanup);
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Epplet_Init("E-Disk", "0.1", "Enlightenment Disk I/O Monitor Epplet", 3, 3, argc, argv, 0);
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Epplet_load_config();
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parse_conf();
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close_button = Epplet_create_button(NULL, NULL, 34, 2, 0, 0, "CLOSE", 0, NULL, close_cb, NULL);
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in_label = Epplet_create_label(4, 4, "I: 0 K/s", 1);
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out_label = Epplet_create_label(4, 24, "O: 0 K/s", 1);
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in_bar = Epplet_create_hbar(4, 14, 40, 8, 0, &in_val);
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out_bar = Epplet_create_hbar(4, 36, 40, 8, 0, &out_val);
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Epplet_gadget_show(in_label);
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Epplet_gadget_show(in_bar);
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Epplet_gadget_show(out_label);
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Epplet_gadget_show(out_bar);
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Epplet_show();
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Epplet_register_focus_in_handler(in_cb, NULL);
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Epplet_register_focus_out_handler(out_cb, NULL);
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timer_cb(NULL); /* Set everything up */
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Epplet_Loop();
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return 0;
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}
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