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
|
%{
#include <xcb/xcb.h>
#include <stdlib.h>
#include "xcb_atom.h"
define(`COUNT', 0)dnl
define(`DO', `const xcb_atom_t $1 = { define(`COUNT', incr(COUNT))COUNT };')dnl
include(atomlist.m4)`'dnl
%}
%readonly-tables
%pic
%null-strings
%enum
%includes
%compare-strncmp
%struct-type
struct atom_map { int name; xcb_atom_t value; };
%%
define(`DO', `$1,{ define(`COUNT', incr(COUNT))COUNT }')dnl
include(atomlist.m4)`'dnl
%%
static const char *const atom_names[] = {
define(`DO', ` "$1",')dnl
include(atomlist.m4)`'dnl
};
xcb_atom_t intern_atom_predefined(uint16_t name_len, const char *name)
{
const struct atom_map *value = in_word_set(name, name_len);
xcb_atom_t ret = { XCB_NONE };
if(value)
ret = value->value;
return ret;
}
intern_atom_fast_cookie_t intern_atom_fast(xcb_connection_t *c, uint8_t only_if_exists, uint16_t name_len, const char *name)
{
intern_atom_fast_cookie_t cookie;
if((cookie.u.atom = intern_atom_predefined(name_len, name)).xid != XCB_NONE)
{
cookie.tag = TAG_VALUE;
return cookie;
}
cookie.tag = TAG_COOKIE;
cookie.u.cookie = xcb_intern_atom(c, only_if_exists, name_len, name);
return cookie;
}
xcb_atom_t intern_atom_fast_reply(xcb_connection_t *c, intern_atom_fast_cookie_t cookie, xcb_generic_error_t **e)
{
switch(cookie.tag)
{
xcb_intern_atom_reply_t *reply;
case TAG_VALUE:
if(e)
*e = 0;
break;
case TAG_COOKIE:
reply = xcb_intern_atom_reply(c, cookie.u.cookie, e);
if(reply)
{
cookie.u.atom = reply->atom;
free(reply);
}
else
cookie.u.atom.xid = 0;
break;
}
return cookie.u.atom;
}
const char *get_atom_name_predefined(xcb_atom_t atom)
{
if(atom.xid <= 0 || atom.xid > (sizeof(atom_names) / sizeof(*atom_names)))
return 0;
return atom_names[atom.xid - 1];
}
int get_atom_name(xcb_connection_t *c, xcb_atom_t atom, const char **namep, int *lengthp)
{
static char buf[100];
const char *name = get_atom_name_predefined(atom);
int len;
xcb_get_atom_name_cookie_t atomc;
xcb_get_atom_name_reply_t *atomr;
if(name)
{
*namep = name;
*lengthp = strlen(name);
return 1;
}
atomc = xcb_get_atom_name(c, atom);
atomr = xcb_get_atom_name_reply(c, atomc, 0);
if(!atomr)
return 0;
len = xcb_get_atom_name_name_length(atomr);
if(len > sizeof(buf))
len = sizeof(buf);
*lengthp = len;
memcpy(buf, xcb_get_atom_name_name(atomr), len);
*namep = buf;
free(atomr);
return 1;
}
|
