commit 1a19df3d13308f7a327a36986c665692e301d3e5
parent b3df6ebd492ec9d14a991e5bc7aefe31ea5bafa3
Author: Alex Kozadaev <akozadaev@yahoo.com>
Date: Wed, 27 Feb 2013 23:34:51 +0000
dwm: suspend-statusbar.c added
Diffstat:
1 file changed, 219 insertions(+), 0 deletions(-)
diff --git a/dwm.suckless.org/dwmstatus/suspend-statusbar.c b/dwm.suckless.org/dwmstatus/suspend-statusbar.c
@@ -0,0 +1,219 @@
+/* statusbar.c */
+/* Copyright (C) 2012 Alex Kozadaev [akozadaev at yahoo com] */
+/* git clone git@github.com:akozadaev/dwm-statusbar.git */
+
+#include "build_host.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <signal.h>
+#include <X11/Xlib.h>
+
+/* ===================================================================
+autoconfiguration - snippet from Makefile
+
+BATPATH=`find /sys -name BAT0 -print0 -quit`
+LNKPATH=`find /sys/class/net/wlan0/ -name operstate -print0 -quit`
+LAPATH=`find /proc -name loadavg -print0 -quit`
+
+# git@github.com:akozadaev/boxsuspend.git
+BOXSUSPEND=`which boxsuspend`
+
+
+build_host.h:
+ @echo "#define BUILD_HOST \"`hostname`\"" > build_host.h
+ @echo "#define BUILD_OS \"`uname`\"" >> build_host.h
+ @echo "#define BUILD_PLATFORM \"`uname -m`\"" >> build_host.h
+ @echo "#define BUILD_KERNEL \"`uname -r`\"" >> build_host.h
+ @echo "#define LA_PATH \"${LAPATH}\"" >> build_host.h
+ @echo "#define BAT_NOW \"${BATPATH}/charge_now\"" >> build_host.h
+ @echo "#define BAT_FULL \"${BATPATH}/charge_full\"" >> build_host.h
+ @echo "#define BAT_STAT \"${BATPATH}/status\"" >> build_host.h
+ @echo "#define LNK_PATH \"${LNKPATH}\"" >> build_host.h
+ @echo "#define BOX_SUSPEND \"${BOXSUSPEND}\"" >> build_host.h
+=================================================================== */
+
+/* version 0.64 */
+
+#define THRESHOLD 8
+#define TIMEOUT 40
+#define SUSPEND { BOX_SUSPEND, NULL } /* BOX_SUSPEND gets configured in Makefile */
+
+#define LABUF 14
+#define DTBUF 20
+#define LNKBUF 8
+#define STR 64
+
+/* Available statuses
+ *
+ * Charging
+ * Discharging
+ * Unknown
+ * Full
+ */
+typedef enum {
+ C, D, U, F
+} status_t;
+
+
+static void spawn(const char **params) __attribute__ ((unused));
+static void set_status(char *str);
+static void open_display(void) __attribute__ ((unused));
+static void close_display() __attribute__ ((unused));
+static void get_datetime(char *buf);
+static status_t get_status();
+static int read_int(const char *path);
+static void read_str(const char *path, char *buf, size_t sz);
+
+static Display *dpy;
+
+int
+main(void)
+{
+ int timer = 0;
+ float bat; /* battery status */
+ char lnk[STR] = { 0 }; /* wifi link */
+ char la[STR] = { 0 }; /* load average */
+ char dt[STR] = { 0 }; /* date/time */
+ char stat[STR] = { 0 }; /* full string */
+ status_t st; /* battery status */
+ char status[] = { '+', '-', '?', '=' }; /* should be the same order as the enum above (C, D, U, F) */
+
+#ifndef DEBUG
+ open_display();
+#endif
+
+ while (!sleep(1)) {
+ read_str(LA_PATH, la, LABUF); /* load average */
+ read_str(LNK_PATH, lnk, LNKBUF); /* link status */
+ get_datetime(dt); /* date/time */
+ bat = ((float)read_int(BAT_NOW) /
+ read_int(BAT_FULL)) * 100.0f; /* battery */
+ st = get_status(); /* battery status (charging/discharging/full/etc) */
+
+ if (st == D && bat < THRESHOLD) {
+ snprintf(stat, STR, "LOW BATTERY: suspending after %d ", TIMEOUT - timer);
+ set_status(stat);
+ if (timer >= TIMEOUT) {
+#ifndef DEBUG
+ spawn((const char*[])SUSPEND);
+#else
+ puts("sleeping");
+#endif
+ timer = 0;
+ } else
+ timer++;
+ } else {
+ snprintf(stat, STR, "%s | %s | %c%0.1f%% | %s", la, lnk, status[st],
+ (bat > 100) ? 100 : bat, dt);
+ set_status(stat);
+ timer = 0; /* reseting the standby timer */
+ }
+ }
+
+#ifndef DEBUG
+ close_display();
+#endif
+ return 0;
+}
+
+static void
+spawn(const char **params) {
+ if (fork() == 0) {
+ setsid();
+ execv(params[0], (char**)params);
+ exit(0);
+ }
+}
+
+static void
+set_status(char *str)
+{
+#ifndef DEBUG
+ XStoreName(dpy, DefaultRootWindow(dpy), str);
+ XSync(dpy, False);
+#else
+ puts(str);
+#endif
+}
+
+static void
+open_display(void)
+{
+ if (!(dpy = XOpenDisplay(NULL)))
+ exit(1);
+ signal(SIGINT, close_display);
+ signal(SIGTERM, close_display);
+}
+
+static void
+close_display()
+{
+ XCloseDisplay(dpy);
+ exit(0);
+}
+
+static void
+get_datetime(char *buf)
+{
+ time_t rawtime;
+ time(&rawtime);
+ snprintf(buf, DTBUF, "%s", ctime(&rawtime));
+}
+
+static status_t
+get_status()
+{
+ FILE *bs;
+ char st;
+
+ if ((bs = fopen(BAT_STAT, "r")) == NULL)
+ return U;
+
+ st = fgetc(bs);
+ fclose(bs);
+
+ switch(st) {
+ case 'C': return C; /* Charging */
+ case 'D': return D; /* Discharging */
+ case 'F': return F; /* Full */
+ default : return U; /* Unknown */
+ }
+}
+
+static int
+read_int(const char *path)
+{
+ int i = 0;
+ FILE *fh;
+
+ if (!(fh = fopen(path, "r")))
+ return -1;
+
+ fscanf(fh, "%d", &i);
+ fclose(fh);
+ return i;
+}
+
+static void
+read_str(const char *path, char *buf, size_t sz)
+{
+ FILE *fh;
+ char ch = 0;
+ int idx = 0;
+
+ if (!(fh = fopen(path, "r"))) return;
+
+ while ((ch = fgetc(fh)) != EOF && ch != '\0' && ch != '\n' && idx < sz) {
+ buf[idx++] = ch;
+ }
+
+ buf[idx] = '\0';
+ fclose(fh);
+}
+
+/* EOF */
+
