1 #include <u.h>
2 #include <libc.h>
3 #include <bio.h>
4 #include <draw.h>
5 #include <mouse.h>
6 #include <cursor.h>
7 #include <drawsrv.h>
8 
9 typedef struct Cmd Cmd;
10 struct Cmd {
11 	char *cmd;
12 	void	(*fn)(int, char**);
13 };
14 
15 Biobuf b;
16 int fd;
17 uchar buf[64*1024];
18 
19 void
20 startsrv(void)
21 {
22 	int pid, p[2];
23 	
24 	if(pipe(p) < 0)
25 		sysfatal("pipe");
26 	if((pid=fork()) < 0)
27 		sysfatal("fork");
28 	if(pid == 0){
29 		close(p[0]);
30 		dup(p[1], 0);
31 		dup(p[1], 1);
32 		execl("o.drawsrv", "o.drawsrv", "-D", nil);
33 		sysfatal("exec: %r");
34 	}
35 	close(p[1]);
36 	fd = p[0];
37 }
38 
39 int
40 domsg(Wsysmsg *m)
41 {
42 	int n, nn;
43 
44 	n = convW2M(m, buf, sizeof buf);
45 fprint(2, "write %d to %d\n", n, fd);
46 	write(fd, buf, n);
47 	n = readwsysmsg(fd, buf, sizeof buf);
48 	nn = convM2W(buf, n, m);
49 	assert(nn == n);
50 	if(m->op == Rerror)
51 		return -1;
52 	return 0;
53 }
54 
55 void
56 cmdinit(int argc, char **argv)
57 {
58 	Wsysmsg m;
59 	
60 	memset(&m, 0, sizeof m);
61 	m.op = Tinit;
62 	m.winsize = "100x100";
63 	m.label = "label";
64 	m.font = "";
65 	if(domsg(&m) < 0)
66 		sysfatal("domsg");
67 }
68 
69 void
70 cmdmouse(int argc, char **argv)
71 {
72 	Wsysmsg m;
73 	
74 	memset(&m, 0, sizeof m);
75 	m.op = Trdmouse;
76 	if(domsg(&m) < 0)
77 		sysfatal("domsg");
78 	print("%c %d %d %d\n",
79 		m.resized ? 'r' : 'm',
80 		m.mouse.xy.x,
81 		m.mouse.xy.y,
82 		m.mouse.buttons);
83 }
84 
85 void
86 cmdkbd(int argc, char **argv)
87 {
88 	Wsysmsg m;
89 	
90 	memset(&m, 0, sizeof m);
91 	m.op = Trdkbd;
92 	if(domsg(&m) < 0)
93 		sysfatal("domsg");
94 	print("%s\n", m.runes);
95 }
96 
97 Cmd cmdtab[] = {
98 	{ "init", cmdinit, },
99 	{ "mouse", cmdmouse, },
100 	{ "kbd", cmdkbd, },
101 };
102 
103 void
104 main(int argc, char **argv)
105 {
106 	char *p, *f[20];
107 	int i, nf;
108 
109 	startsrv();
110 
111 fprint(2, "started...\n");
112 	Binit(&b, 0, OREAD);
113 	while((p = Brdstr(&b, '\n', 1)) != nil){
114 fprint(2, "%s...\n", p);
115 		nf = tokenize(p, f, nelem(f));
116 		for(i=0; i<nelem(cmdtab); i++){
117 			if(strcmp(cmdtab[i].cmd, f[0]) == 0){
118 				cmdtab[i].fn(nf, f);
119 				break;
120 			}
121 		}
122 		if(i == nelem(cmdtab))
123 			print("! unrecognized command %s\n", f[0]);
124 		free(p);
125 	}
126 	exits(0);
127 }
128