289 lines
7.6 KiB
C
289 lines
7.6 KiB
C
/*
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* Copyright (C) 1999-2005, 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 "config.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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static Epplet_gadget close_button, in_bar, out_bar, in_label, out_label, title,
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cfg_button;
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static int in_val = 0, out_val = 0;
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static unsigned long max_in = 1, max_out = 1;
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static unsigned char show_title = 1;
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static void
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show_size(unsigned long n, char *buff)
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{
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if (n < 1024)
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{
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sprintf(buff, "%lu b", n);
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}
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else if (n < 1024 * 1024)
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{
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sprintf(buff, "%lu k", n / 1024);
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}
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else if (n < 1024 * 1024 * 1024)
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{
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sprintf(buff, "%lu M", n / (1024 * 1024));
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}
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else
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{
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sprintf(buff, "%lu G", n / (1024 * 1024 * 1024));
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}
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}
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static void
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timer_cb(void *data __UNUSED__)
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{
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FILE *fp;
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char buff[1024];
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unsigned long a, b, c, d, e;
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unsigned long in_blks = 0, out_blks = 0;
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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/diskstats", "r")))
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{
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if (!(fp = fopen("/proc/stat", "r")))
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{
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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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}
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for (; fgets(buff, sizeof(buff), fp);)
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{
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if (BEGMATCH(buff, "disk_rblk"))
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{
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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;
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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;
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}
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else if (BEGMATCH(buff, "disk_io"))
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{
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char *pbuff = buff + 9;
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for (in_blks = out_blks = 0; *pbuff == '(';
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pbuff = strchr(pbuff, ' ') + 1)
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{
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pbuff = strchr(++pbuff, '(');
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sscanf(++pbuff, "%lu,%lu,%lu,%lu,%lu", &a, &b, &c, &d, &e);
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in_blks += c;
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out_blks += e;
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}
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}
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else
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{
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char tmp[64];
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/* Hopefully no one can exploit /proc/diskstats without root. :-) */
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sscanf(buff, "%lu %lu %s %*u %*u %lu %*u %*u %*u %lu", &a, &b, tmp,
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&c, &d);
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/* Check for hdX or sdX, or md#, or...??? */
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if ((((*tmp == 'h') || (*tmp == 's')) && (tmp[1] == 'd')
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&& (isalpha(tmp[2])) && (tmp[3] == 0)) || ((*tmp == 'm')
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&& (tmp[1] == 'd')
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&&
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(isdigit(tmp[2]))))
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{
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in_blks += c;
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out_blks += d;
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}
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}
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}
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in_blks -= last_in;
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out_blks -= last_out;
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fclose(fp);
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if (last_in)
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{
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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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{
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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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{
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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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sprintf(buff, "I: ");
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show_size(in_blks * 512, buff + 3);
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strcat(buff, "/s");
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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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if (last_out)
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{
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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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{
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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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{
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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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sprintf(buff, "O: ");
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show_size(out_blks * 512, buff + 3);
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strcat(buff, "/s");
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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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Esync();
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Epplet_timer(timer_cb, NULL, 1.0, "TIMER");
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}
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static void
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close_cb(void *data __UNUSED__)
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{
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Epplet_unremember();
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Esync();
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exit(0);
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}
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static void
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title_cb(void *data __UNUSED__)
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{
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show_title = !show_title;
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if (show_title)
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{
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Epplet_gadget_move(in_label, 3, 13);
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Epplet_gadget_move(out_label, 3, 30);
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Epplet_gadget_move(in_bar, 3, 22);
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Epplet_gadget_move(out_bar, 3, 39);
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Epplet_gadget_show(title);
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}
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else
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{
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Epplet_gadget_move(in_label, 4, 4);
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Epplet_gadget_move(out_label, 4, 24);
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Epplet_gadget_move(in_bar, 4, 14);
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Epplet_gadget_move(out_bar, 4, 36);
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Epplet_gadget_hide(title);
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}
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Epplet_modify_config("title", (show_title ? "1" : "0"));
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Epplet_redraw();
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}
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static void
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in_cb(void *data __UNUSED__, Window w)
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{
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if (w == Epplet_get_main_window())
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{
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Epplet_gadget_show(close_button);
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Epplet_gadget_show(cfg_button);
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}
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}
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static void
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out_cb(void *data __UNUSED__, Window w)
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{
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if (w == Epplet_get_main_window())
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{
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Epplet_gadget_hide(close_button);
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Epplet_gadget_hide(cfg_button);
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}
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}
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static void
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parse_conf(void)
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{
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const 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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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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show_title = atoi(Epplet_query_config_def("title", "1"));
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}
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int
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main(int argc, char **argv)
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{
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Epplet_adjust_priority(10);
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atexit(Epplet_cleanup);
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Epplet_Init("E-Disk", "0.2", "Enlightenment Disk I/O Monitor Epplet", 3, 3,
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argc, argv, 0);
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Epplet_load_config();
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parse_conf();
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title = Epplet_create_label(3, 3, "Disk I/O", 1);
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if (show_title)
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{
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/* New arrangement */
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in_label = Epplet_create_label(3, 13, "I: 0 b/s", 1);
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out_label = Epplet_create_label(3, 30, "O: 0 b/s", 1);
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in_bar = Epplet_create_hbar(3, 22, 42, 7, 0, &in_val);
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out_bar = Epplet_create_hbar(3, 39, 42, 7, 0, &out_val);
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Epplet_gadget_show(title);
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}
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else
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{
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/* Old arrangement */
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in_label = Epplet_create_label(4, 4, "I: 0 b/s", 1);
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out_label = Epplet_create_label(4, 24, "O: 0 b/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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}
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close_button =
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Epplet_create_button(NULL, NULL, 2, 2, 0, 0, "CLOSE", 0, NULL, close_cb,
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NULL);
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cfg_button =
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Epplet_create_button(NULL, NULL, 33, 2, 0, 0, "CONFIGURE", 0, NULL,
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title_cb, NULL);
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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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