1 /* EINA - EFL data type library
2 * Copyright (C) 2002-2008 Carsten Haitzler,
3 * Jorge Luis Zapata Muga,
4 * Cedric Bail,
5 * Gustavo Sverzut Barbieri
6 * Tom Hacohen
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library;
20 * if not, see <http://www.gnu.org/licenses/>.
21
22 */
23 /**
24 * @page tutorial_ustringshare_page UStringshare Tutorial
25 *
26 * to be written...
27 *
28 */
29
30 #ifdef HAVE_CONFIG_H
31 # include "config.h"
32 #endif
33
34 #include "eina_config.h"
35 #include "eina_private.h"
36 #include "eina_unicode.h"
37 #include "eina_log.h"
38 #include "eina_share_common.h"
39
40 /* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
41 #include "eina_safety_checks.h"
42 #include "eina_ustringshare.h"
43
44
45 #ifdef CRI
46 #undef CRI
47 #endif
48 #define CRI(...) EINA_LOG_DOM_CRIT(_eina_share_ustringshare_log_dom, __VA_ARGS__)
49
50 #ifdef ERR
51 #undef ERR
52 #endif
53 #define ERR(...) EINA_LOG_DOM_ERR(_eina_share_ustringshare_log_dom, __VA_ARGS__)
54
55 #ifdef DBG
56 #undef DBG
57 #endif
58 #define DBG(...) EINA_LOG_DOM_DBG(_eina_share_ustringshare_log_dom, __VA_ARGS__)
59
60 static int _eina_share_ustringshare_log_dom = -1;
61
62 /* The actual share */
63 static Eina_Share *ustringshare_share;
64 static const char EINA_MAGIC_USTRINGSHARE_NODE_STR[] = "Eina UStringshare Node";
65
66 /*============================================================================*
67 * Global *
68 *============================================================================*/
69
70 /**
71 * @internal
72 * @brief Initialize the share_common module.
73 *
74 * @return #EINA_TRUE on success, #EINA_FALSE on failure.
75 *
76 * This function sets up the share_common module of Eina. It is called by
77 * eina_init().
78 *
79 * @see eina_init()
80 */
81 Eina_Bool
eina_ustringshare_init(void)82 eina_ustringshare_init(void)
83 {
84 Eina_Bool ret;
85
86 if (_eina_share_ustringshare_log_dom < 0)
87 {
88 _eina_share_ustringshare_log_dom = eina_log_domain_register
89 ("eina_ustringshare", EINA_LOG_COLOR_DEFAULT);
90
91 if (_eina_share_ustringshare_log_dom < 0)
92 {
93 EINA_LOG_ERR("Could not register log domain: eina_ustringshare");
94 return EINA_FALSE;
95 }
96 }
97
98 ret = eina_share_common_init(&ustringshare_share,
99 EINA_MAGIC_USTRINGSHARE_NODE,
100 EINA_MAGIC_USTRINGSHARE_NODE_STR);
101
102 if (!ret)
103 {
104 eina_log_domain_unregister(_eina_share_ustringshare_log_dom);
105 _eina_share_ustringshare_log_dom = -1;
106 }
107
108 return ret;
109 }
110
111 /**
112 * @internal
113 * @brief Shut down the share_common module.
114 *
115 * @return #EINA_TRUE on success, #EINA_FALSE on failure.
116 *
117 * This function shuts down the share_common module set up by
118 * eina_share_common_init(). It is called by eina_shutdown().
119 *
120 * @see eina_shutdown()
121 */
122 Eina_Bool
eina_ustringshare_shutdown(void)123 eina_ustringshare_shutdown(void)
124 {
125 Eina_Bool ret;
126 ret = eina_share_common_shutdown(&ustringshare_share);
127
128 if (_eina_share_ustringshare_log_dom >= 0)
129 {
130 eina_log_domain_unregister(_eina_share_ustringshare_log_dom);
131 _eina_share_ustringshare_log_dom = -1;
132 }
133
134 return ret;
135 }
136
137 /*============================================================================*
138 * API *
139 *============================================================================*/
140
141 EAPI void
eina_ustringshare_del(const Eina_Unicode * str)142 eina_ustringshare_del(const Eina_Unicode *str)
143 {
144 if (!str)
145 return;
146
147 if (!eina_share_common_del(ustringshare_share, (const char *)str))
148 CRI("EEEK trying to del non-shared ustringshare \"%s\"", (const char *)str);
149 }
150
151 EAPI const Eina_Unicode *
eina_ustringshare_add_length(const Eina_Unicode * str,unsigned int slen)152 eina_ustringshare_add_length(const Eina_Unicode *str, unsigned int slen)
153 {
154 return (const Eina_Unicode *)eina_share_common_add_length(ustringshare_share,
155 (const char *)str,
156 slen *
157 sizeof(
158 Eina_Unicode),
159 sizeof(
160 Eina_Unicode));
161 }
162
163 EAPI const Eina_Unicode *
eina_ustringshare_add(const Eina_Unicode * str)164 eina_ustringshare_add(const Eina_Unicode *str)
165 {
166 int slen = (str) ? (int)eina_unicode_strlen(str) : -1;
167 return eina_ustringshare_add_length(str, slen);
168 }
169
170 EAPI const Eina_Unicode *
eina_ustringshare_ref(const Eina_Unicode * str)171 eina_ustringshare_ref(const Eina_Unicode *str)
172 {
173 return (const Eina_Unicode *)eina_share_common_ref(ustringshare_share,
174 (const char *)str);
175 }
176
177 EAPI int
eina_ustringshare_strlen(const Eina_Unicode * str)178 eina_ustringshare_strlen(const Eina_Unicode *str)
179 {
180 int len = eina_share_common_length(ustringshare_share, (const char *)str);
181 len = (len > 0) ? len / (int)sizeof(Eina_Unicode) : -1;
182 return len;
183 }
184
185 EAPI void
eina_ustringshare_dump(void)186 eina_ustringshare_dump(void)
187 {
188 eina_share_common_dump(ustringshare_share, NULL, 0);
189 }
190