blob: f0f4c66b887ee7e9401dac82b332fb3f08e867f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#include <config.h>
#ifndef _plan9
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#ifndef _MAC
#include <sys/types.h>
#endif
#include <fconfig.h>
#include <filter.h>
#include <fractal.h>
#include <string.h>
#include <ui_helper.h>
#include <ui.h>
#include <timers.h>
#include <xmenu.h>
#include "uiint.h"
#ifdef COMPILE_PIPE
static int pipefd = -1;
tl_timer *pipetimer;
static char pipecommand[256];
static int commandpos;
static int textmode = 0;
static int backslash = 0;
static int nest = -1;
#define add(cmd) (pipecommand[commandpos++]=cmd)
static void ui_pipe_handler(void *data, int q)
{
#ifdef O_NONBLOCK
char buf[100];
int n = (int) read(pipefd, buf, 100);
int i;
if (n > 0) {
buf[n] = 0;
}
for (i = 0; i < n; i++) {
if (backslash) {
add(buf[i]);
continue;
}
if (textmode) {
if (buf[i] == '\\') {
add(buf[i]);
backslash = 1;
continue;
}
if (buf[i] == '"') {
add(buf[i]);
textmode = 0;
continue;
}
add(buf[i]);
} else {
add(buf[i]);
if (buf[i] == '"')
textmode = 1;
if (buf[i] == ')')
nest--;
if (buf[i] == '(') {
if (nest == -1)
nest = 1;
else
nest++;
}
if (!nest) {
add(0);
uih_command(uih, pipecommand);
nest = -1;
commandpos = 0;
}
}
}
#endif
}
void ui_pipe_init(CONST char *name)
{
#ifdef O_NONBLOCK
if ((int) strlen(name) == 1 && name[0] == '-') {
pipefd = 0;
fcntl(pipefd, F_SETFL, O_NONBLOCK);
} else {
pipefd = open(name, O_NONBLOCK);
if (pipefd == -1) {
perror(name);
exit(1);
}
}
pipetimer = tl_create_timer();
tl_set_multihandler(pipetimer, ui_pipe_handler, NULL);
tl_reset_timer(pipetimer);
tl_set_interval(pipetimer, 100000);
tl_add_timer(syncgroup, pipetimer);
#else
printf
("Fatal error - constant O_NONBLOCK used for non-blocking IO in the pipe handling"
"is unknown at the moment of compilation. The non-blocking IO will not work. "
"Please ask authors...\n");
exit(0);
#endif
}
static void ui_pipe_close(void)
{
#ifdef O_NONBLOCK
if (pipefd == -1)
return;
close(pipefd);
tl_remove_timer(pipetimer);
#endif
}
#endif
#endif
|
