169 lines
4.3 KiB
C
169 lines
4.3 KiB
C
#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 "config.h"
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#include "epplet.h"
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#ifdef HAVE_LIBGTOP
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#include <glibtop.h>
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#include <glibtop/mem.h>
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#include <glibtop/swap.h>
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#include "proc.h"
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#endif
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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, mem_bar, swap_bar, mem_label, swap_label;
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int mem_val = 0, swap_val = 0;
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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
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timer_cb(void *data) {
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char buff[1024];
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unsigned long total, used, buffers, cached;
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#ifdef HAVE_LIBGTOP
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int check=0;
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glibtop_mem mem;
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glibtop_swap swap;
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glibtop_get_mem (&mem);
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total=(unsigned long)mem.total;
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used=(unsigned long)mem.used;
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buffers=(unsigned long)mem.buffer;
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cached=(unsigned long)mem.cached;
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#else
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FILE *fp;
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if ((fp = fopen("/proc/meminfo", "r")) == NULL) {
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D(("Failed to open /proc/meminfo -- %s\n", strerror(errno)));
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return;
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}
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fgets(buff, sizeof(buff), fp); /* Ignore the first line */
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fgets(buff, sizeof(buff), fp);
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sscanf(buff, "%*s %lu %lu %*u %*u %lu %lu",
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&total, &used, &buffers, &cached);
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#endif
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used -= (buffers + cached);
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mem_val = (int) ((((float) used) / total) * 100.0);
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D(("%d = 100 * %lu / %lu\n", (100 * used) / total, used, total));
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D(("Memory: %d%% (%lu/%lu)\n", mem_val, used, total));
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Epplet_gadget_data_changed(mem_bar);
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if (used < 1024) {
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Esnprintf(buff, sizeof(buff), "M: %lub", used);
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} else if (used < 1024 * 1024) {
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Esnprintf(buff, sizeof(buff), "M: %luK", used / 1024);
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} else if (used < 1024 * 1024 * 1024) {
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Esnprintf(buff, sizeof(buff), "M: %luM", used / (1024 * 1024));
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} else {
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Esnprintf(buff, sizeof(buff), "M: %luG", used / (1024 * 1024 * 1024));
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}
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Epplet_change_label(mem_label, buff);
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#ifdef HAVE_LIBGTOP
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glibtop_get_swap (&swap);
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check=0;
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do {
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total=(unsigned long)swap.total;
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used=(unsigned long)swap.used;
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} while (swap.total==0 && swap.used==0 && check++<15);
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#else
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fgets(buff, sizeof(buff), fp);
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sscanf(buff, "%*s %lu %lu", &total, &used);
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fclose(fp);
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#endif
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swap_val = (int) ((((float) used) / total) * 100.0);
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/*printf ("Swap: %lu %lu %d%%\n", total, used, swap_val); */
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D(("Swap: %d%% (%lu/%lu)\n", swap_val, used, total));
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Epplet_gadget_data_changed(swap_bar);
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if (used < 1024) {
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Esnprintf(buff, sizeof(buff), "S: %lub", used);
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} else if (used < 1024 * 1024) {
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Esnprintf(buff, sizeof(buff), "S: %luK", used / 1024);
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} else if (used < 1024 * 1024 * 1024) {
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Esnprintf(buff, sizeof(buff), "S: %luM", used / (1024 * 1024));
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} else {
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Esnprintf(buff, sizeof(buff), "S: %luG", used / (1024 * 1024 * 1024));
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}
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Epplet_change_label(swap_label, buff);
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Esync();
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Epplet_timer(timer_cb, NULL, 3.0, "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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Epplet_gadget_show(close_button);
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return;
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data = NULL;
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w = (Window) 0;
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}
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static void
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out_cb(void *data, Window w) {
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Epplet_gadget_hide(close_button);
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return;
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data = NULL;
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w = (Window) 0;
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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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atexit(Epplet_cleanup);
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prio = getpriority(PRIO_PROCESS, getpid());
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setpriority(PRIO_PROCESS, getpid(), prio + 10);
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Epplet_Init("E-MemWatch", "0.1", "Enlightenment RAM/Swap Monitor Epplet", 3, 3, argc, argv, 0);
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close_button = Epplet_create_button(NULL, NULL, 2, 2, 0, 0, "CLOSE", 0, NULL, close_cb, NULL);
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mem_label = Epplet_create_label(4, 4, "M:", 1);
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swap_label = Epplet_create_label(4, 24, "S:", 1);
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mem_bar = Epplet_create_hbar(4, 14, 40, 8, 0, &mem_val);
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swap_bar = Epplet_create_hbar(4, 36, 40, 8, 0, &swap_val);
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Epplet_gadget_show(mem_label);
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Epplet_gadget_show(mem_bar);
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Epplet_gadget_show(swap_label);
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Epplet_gadget_show(swap_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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