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#include <u.h>
#include <libc.h>
#include <bio.h>
#include <draw.h>
#include <mouse.h>
#include <cursor.h>
#include <drawfcall.h>
typedef struct Cmd Cmd;
struct Cmd {
char *cmd;
void (*fn)(int, char**);
};
Biobuf b;
int fd;
uchar buf[64*1024];
void
startsrv(void)
{
int pid, p[2];
if(pipe(p) < 0)
sysfatal("pipe");
if((pid=fork()) < 0)
sysfatal("fork");
if(pid == 0){
close(p[0]);
dup(p[1], 0);
dup(p[1], 1);
execl("./o.devdraw", "o.devdraw", "-D", nil);
sysfatal("exec: %r");
}
close(p[1]);
fd = p[0];
}
int
domsg(Wsysmsg *m)
{
int n, nn;
n = convW2M(m, buf, sizeof buf);
fprint(2, "write %d to %d\n", n, fd);
write(fd, buf, n);
n = readwsysmsg(fd, buf, sizeof buf);
nn = convM2W(buf, n, m);
assert(nn == n);
if(m->type == Rerror)
return -1;
return 0;
}
void
cmdinit(int argc, char **argv)
{
Wsysmsg m;
memset(&m, 0, sizeof m);
m.type = Tinit;
m.winsize = "100x100";
m.label = "label";
if(domsg(&m) < 0)
sysfatal("domsg");
}
void
cmdmouse(int argc, char **argv)
{
Wsysmsg m;
memset(&m, 0, sizeof m);
m.type = Trdmouse;
if(domsg(&m) < 0)
sysfatal("domsg");
print("%c %d %d %d\n",
m.resized ? 'r' : 'm',
m.mouse.xy.x,
m.mouse.xy.y,
m.mouse.buttons);
}
void
cmdkbd(int argc, char **argv)
{
Wsysmsg m;
memset(&m, 0, sizeof m);
m.type = Trdkbd;
if(domsg(&m) < 0)
sysfatal("domsg");
print("%d\n", m.rune);
}
Cmd cmdtab[] = {
{ "init", cmdinit, },
{ "mouse", cmdmouse, },
{ "kbd", cmdkbd, },
};
void
main(int argc, char **argv)
{
char *p, *f[20];
int i, nf;
startsrv();
fprint(2, "started...\n");
Binit(&b, 0, OREAD);
while((p = Brdstr(&b, '\n', 1)) != nil){
fprint(2, "%s...\n", p);
nf = tokenize(p, f, nelem(f));
for(i=0; i<nelem(cmdtab); i++){
if(strcmp(cmdtab[i].cmd, f[0]) == 0){
cmdtab[i].fn(nf, f);
break;
}
}
if(i == nelem(cmdtab))
print("! unrecognized command %s\n", f[0]);
free(p);
}
exits(0);
}
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