ttimer.c - stopwatch - simple timer for console or x root window | |
git clone git://src.adamsgaard.dk/stopwatch | |
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ttimer.c (2241B) | |
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1 #include <stdio.h> | |
2 #include <stdlib.h> | |
3 #include <limits.h> | |
4 #include <unistd.h> | |
5 #include <time.h> | |
6 #include <string.h> | |
7 #include <err.h> | |
8 #include <X11/Xlib.h> | |
9 | |
10 #include "timeutil.h" | |
11 | |
12 char *argv0; | |
13 | |
14 void | |
15 usage(void) | |
16 { | |
17 errx(1, "usage: %s [-p prefix] [-P postfix] [-i interval] [-x] H… | |
18 } | |
19 | |
20 void | |
21 print_loop(unsigned int interval, char *prefix, char *postfix, time_t du… | |
22 { | |
23 char buf[LINE_MAX]; | |
24 time_t t_start = time(NULL); | |
25 time_t t_elapsed = 0; | |
26 | |
27 while ((t_elapsed = time(NULL) - t_start) < duration) { | |
28 format_time(buf, sizeof(buf), duration - t_elapsed, pref… | |
29 printf("\r%s ", buf); | |
30 fflush(stdout); | |
31 sleep(interval); | |
32 } | |
33 printf("\a\n"); | |
34 } | |
35 | |
36 void | |
37 xroot_loop(unsigned int interval, char *prefix, char *postfix, time_t du… | |
38 { | |
39 Display *dpy; | |
40 char buf[LINE_MAX]; | |
41 time_t t_start = time(NULL); | |
42 time_t t_elapsed = 0; | |
43 | |
44 dpy = XOpenDisplay(NULL); | |
45 if (dpy == NULL) | |
46 errx(1, "cannot open display"); | |
47 while ((t_elapsed = time(NULL) - t_start) < duration) { | |
48 format_time(buf, sizeof(buf), duration - t_elapsed, pref… | |
49 XStoreName(dpy, DefaultRootWindow(dpy), buf); | |
50 XSync(dpy, False); | |
51 sleep(interval); | |
52 } | |
53 snprintf(buf, sizeof(buf), "%sEND%s", prefix, postfix); | |
54 XStoreName(dpy, DefaultRootWindow(dpy), buf); | |
55 XSync(dpy, False); | |
56 } | |
57 | |
58 int | |
59 main(int argc, char *argv[]) | |
60 { | |
61 int h, m, s; | |
62 time_t duration; | |
63 int ch, xflag = 0; | |
64 unsigned int interval = 1; | |
65 char prefix[LINE_MAX] = "", postfix[LINE_MAX] = ""; | |
66 const char *errstr; | |
67 | |
68 argv0 = *argv; | |
69 | |
70 while ((ch = getopt(argc, argv, "p:P:i:x")) != -1) { | |
71 switch (ch) { | |
72 case 'p': | |
73 strlcpy(prefix, optarg, sizeof(prefix)); | |
74 break; | |
75 case 'P': | |
76 strlcpy(postfix, optarg, sizeof(postfix)); | |
77 break; | |
78 case 'i': | |
79 interval = strtonum(optarg, 1, UINT_MAX, &errstr… | |
80 if (errstr != NULL) | |
81 errx(1, "interval is %s: %s", errstr, op… | |
82 break; | |
83 case 'x': | |
84 xflag = 1; | |
85 break; | |
86 default: | |
87 usage(); | |
88 } | |
89 } | |
90 argc -= optind; | |
91 argv += optind; | |
92 if (argc != 1) | |
93 usage(); | |
94 | |
95 if (sscanf(argv[0], "%d:%d:%d", &h, &m, &s) != 3) | |
96 errx(2, "could not parse time in HH:MM:SS format"); | |
97 duration = h * 3600 + m * 60 + s; | |
98 | |
99 if (xflag) | |
100 xroot_loop(interval, prefix, postfix, duration); | |
101 else | |
102 print_loop(interval, prefix, postfix, duration); | |
103 | |
104 return 0; | |
105 } |