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3 <title>Light Media Scanner: src/lib/lightmediascanner_db_video.c Source File</title>
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22 <h1>src/lib/lightmediascanner_db_video.c</h1><a href="lightmediascanner__db__video_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include <<a class="code" href="lightmediascanner__db_8h.html">lightmediascanner_db.h</a>></span>
23 <a name="l00002"></a>00002 <span class="preprocessor">#include "<a class="code" href="lightmediascanner__db__private_8h.html">lightmediascanner_db_private.h</a>"</span>
24 <a name="l00003"></a>00003 <span class="preprocessor">#include <stdlib.h></span>
25 <a name="l00004"></a>00004 <span class="preprocessor">#include <stdio.h></span>
26 <a name="l00005"></a>00005
27 <a name="l00006"></a>00006 <span class="keyword">struct </span>lms_db_video {
28 <a name="l00007"></a>00007 sqlite3 *db;
29 <a name="l00008"></a>00008 sqlite3_stmt *insert;
30 <a name="l00009"></a>00009 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _references;
31 <a name="l00010"></a>00010 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _is_started:1;
32 <a name="l00011"></a>00011 };
33 <a name="l00012"></a>00012
34 <a name="l00013"></a>00013 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structlms__db__cache.html">lms_db_cache</a> _cache = {0, NULL};
35 <a name="l00014"></a>00014
36 <a name="l00015"></a>00015 <span class="keyword">static</span> <span class="keywordtype">int</span>
37 <a name="l00016"></a>00016 _db_table_updater_videos_0(sqlite3 *db, <span class="keyword">const</span> <span class="keywordtype">char</span> *table, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> current_version, <span class="keywordtype">int</span> is_last_run) {
38 <a name="l00017"></a>00017 <span class="keywordtype">char</span> *errmsg;
39 <a name="l00018"></a>00018 <span class="keywordtype">int</span> r, ret;
40 <a name="l00019"></a>00019
41 <a name="l00020"></a>00020 errmsg = NULL;
42 <a name="l00021"></a>00021 r = sqlite3_exec(db,
43 <a name="l00022"></a>00022 <span class="stringliteral">"CREATE TABLE IF NOT EXISTS videos ("</span>
44 <a name="l00023"></a>00023 <span class="stringliteral">"id INTEGER PRIMARY KEY, "</span>
45 <a name="l00024"></a>00024 <span class="stringliteral">"title TEXT, "</span>
46 <a name="l00025"></a>00025 <span class="stringliteral">"artist TEXT"</span>
47 <a name="l00026"></a>00026 <span class="stringliteral">")"</span>,
48 <a name="l00027"></a>00027 NULL, NULL, &errmsg);
49 <a name="l00028"></a>00028 <span class="keywordflow">if</span> (r != SQLITE_OK) {
50 <a name="l00029"></a>00029 fprintf(stderr, <span class="stringliteral">"ERROR: could not create 'videos' table: %s\n"</span>, errmsg);
51 <a name="l00030"></a>00030 sqlite3_free(errmsg);
52 <a name="l00031"></a>00031 <span class="keywordflow">return</span> -1;
53 <a name="l00032"></a>00032 }
54 <a name="l00033"></a>00033
55 <a name="l00034"></a>00034 r = sqlite3_exec(db,
56 <a name="l00035"></a>00035 <span class="stringliteral">"CREATE INDEX IF NOT EXISTS videos_title_idx ON videos ("</span>
57 <a name="l00036"></a>00036 <span class="stringliteral">"title"</span>
58 <a name="l00037"></a>00037 <span class="stringliteral">")"</span>,
59 <a name="l00038"></a>00038 NULL, NULL, &errmsg);
60 <a name="l00039"></a>00039 <span class="keywordflow">if</span> (r != SQLITE_OK) {
61 <a name="l00040"></a>00040 fprintf(stderr,
62 <a name="l00041"></a>00041 <span class="stringliteral">"ERROR: could not create 'videos_title_idx' index: %s\n"</span>,
63 <a name="l00042"></a>00042 errmsg);
64 <a name="l00043"></a>00043 sqlite3_free(errmsg);
65 <a name="l00044"></a>00044 <span class="keywordflow">return</span> -2;
66 <a name="l00045"></a>00045 }
67 <a name="l00046"></a>00046
68 <a name="l00047"></a>00047 r = sqlite3_exec(db,
69 <a name="l00048"></a>00048 <span class="stringliteral">"CREATE INDEX IF NOT EXISTS videos_artist_idx ON videos ("</span>
70 <a name="l00049"></a>00049 <span class="stringliteral">"artist"</span>
71 <a name="l00050"></a>00050 <span class="stringliteral">")"</span>,
72 <a name="l00051"></a>00051 NULL, NULL, &errmsg);
73 <a name="l00052"></a>00052 <span class="keywordflow">if</span> (r != SQLITE_OK) {
74 <a name="l00053"></a>00053 fprintf(stderr,
75 <a name="l00054"></a>00054 <span class="stringliteral">"ERROR: could not create 'videos_artist_idx' index: %s\n"</span>,
76 <a name="l00055"></a>00055 errmsg);
77 <a name="l00056"></a>00056 sqlite3_free(errmsg);
78 <a name="l00057"></a>00057 <span class="keywordflow">return</span> -3;
79 <a name="l00058"></a>00058 }
80 <a name="l00059"></a>00059
81 <a name="l00060"></a>00060 ret = <a class="code" href="lightmediascanner__db__common_8c.html#822cae681398710b63c9af149fdacedb">lms_db_create_trigger_if_not_exists</a>(db,
82 <a name="l00061"></a>00061 <span class="stringliteral">"delete_videos_on_files_deleted "</span>
83 <a name="l00062"></a>00062 <span class="stringliteral">"DELETE ON files FOR EACH ROW BEGIN "</span>
84 <a name="l00063"></a>00063 <span class="stringliteral">" DELETE FROM videos WHERE id = OLD.id; END;"</span>);
85 <a name="l00064"></a>00064 <span class="keywordflow">if</span> (ret != 0)
86 <a name="l00065"></a>00065 <span class="keywordflow">goto</span> done;
87 <a name="l00066"></a>00066
88 <a name="l00067"></a>00067 ret = <a class="code" href="lightmediascanner__db__common_8c.html#822cae681398710b63c9af149fdacedb">lms_db_create_trigger_if_not_exists</a>(db,
89 <a name="l00068"></a>00068 <span class="stringliteral">"delete_files_on_videos_deleted "</span>
90 <a name="l00069"></a>00069 <span class="stringliteral">"DELETE ON videos FOR EACH ROW BEGIN "</span>
91 <a name="l00070"></a>00070 <span class="stringliteral">" DELETE FROM files WHERE id = OLD.id; END;"</span>);
92 <a name="l00071"></a>00071
93 <a name="l00072"></a>00072 done:
94 <a name="l00073"></a>00073 <span class="keywordflow">return</span> ret;
95 <a name="l00074"></a>00074 }
96 <a name="l00075"></a>00075
97 <a name="l00076"></a>00076 <span class="keyword">static</span> <a class="code" href="lightmediascanner__db__private_8h.html#7964337689117d7dc6fb1822378b5848">lms_db_table_updater_t</a> _db_table_updater_videos[] = {
98 <a name="l00077"></a>00077 _db_table_updater_videos_0
99 <a name="l00078"></a>00078 };
100 <a name="l00079"></a>00079
101 <a name="l00080"></a>00080
102 <a name="l00081"></a>00081 <span class="keyword">static</span> <span class="keywordtype">int</span>
103 <a name="l00082"></a>00082 _db_create_table_if_required(sqlite3 *db)
104 <a name="l00083"></a>00083 {
105 <a name="l00084"></a>00084 <span class="keywordflow">return</span> <a class="code" href="lightmediascanner__db__common_8c.html#86b766535f9dc7895da7d0f606201700">lms_db_table_update_if_required</a>(db, <span class="stringliteral">"videos"</span>,
106 <a name="l00085"></a>00085 <a class="code" href="lightmediascanner__utils_8h.html#13a0622cfcc91eec261da4285621bdcc">LMS_ARRAY_SIZE</a>(_db_table_updater_videos),
107 <a name="l00086"></a>00086 _db_table_updater_videos);
108 <a name="l00087"></a>00087 }
109 <a name="l00088"></a>00088
110 <a name="l00103"></a>00103 <a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *
111 <a name="l00104"></a><a class="code" href="group__LMS__DB.html#ga206178e1f883c1bf7a3281f982109b2">00104</a> <a class="code" href="group__LMS__DB.html#ga206178e1f883c1bf7a3281f982109b2">lms_db_video_new</a>(sqlite3 *db)
112 <a name="l00105"></a>00105 {
113 <a name="l00106"></a>00106 <a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *ldv;
114 <a name="l00107"></a>00107 <span class="keywordtype">void</span> *p;
115 <a name="l00108"></a>00108
116 <a name="l00109"></a>00109 <span class="keywordflow">if</span> (<a class="code" href="lightmediascanner__db__common_8c.html#e7a672fa5760bae1a669c737648fe7d3">lms_db_cache_get</a>(&_cache, db, &p) == 0) {
117 <a name="l00110"></a>00110 ldv = p;
118 <a name="l00111"></a>00111 ldv->_references++;
119 <a name="l00112"></a>00112 <span class="keywordflow">return</span> ldv;
120 <a name="l00113"></a>00113 }
121 <a name="l00114"></a>00114
122 <a name="l00115"></a>00115 <span class="keywordflow">if</span> (!db)
123 <a name="l00116"></a>00116 <span class="keywordflow">return</span> NULL;
124 <a name="l00117"></a>00117
125 <a name="l00118"></a>00118 <span class="keywordflow">if</span> (_db_create_table_if_required(db) != 0) {
126 <a name="l00119"></a>00119 fprintf(stderr, <span class="stringliteral">"ERROR: could not create table.\n"</span>);
127 <a name="l00120"></a>00120 <span class="keywordflow">return</span> NULL;
128 <a name="l00121"></a>00121 }
129 <a name="l00122"></a>00122
130 <a name="l00123"></a>00123 ldv = calloc(1, <span class="keyword">sizeof</span>(<a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a>));
131 <a name="l00124"></a>00124 ldv->_references = 1;
132 <a name="l00125"></a>00125 ldv->db = db;
133 <a name="l00126"></a>00126
134 <a name="l00127"></a>00127 <span class="keywordflow">if</span> (<a class="code" href="lightmediascanner__db__common_8c.html#19b0458b9d7b76370588156e931a9c04">lms_db_cache_add</a>(&_cache, db, ldv) != 0) {
135 <a name="l00128"></a>00128 <a class="code" href="group__LMS__DB.html#g6be7c0922e76acc29542643424cfeac0">lms_db_video_free</a>(ldv);
136 <a name="l00129"></a>00129 <span class="keywordflow">return</span> NULL;
137 <a name="l00130"></a>00130 }
138 <a name="l00131"></a>00131
139 <a name="l00132"></a>00132 <span class="keywordflow">return</span> ldv;
140 <a name="l00133"></a>00133 }
141 <a name="l00134"></a>00134
142 <a name="l00147"></a>00147 <span class="keywordtype">int</span>
143 <a name="l00148"></a><a class="code" href="group__LMS__DB.html#g0ebc0dd37b1c9bcaf7741231a411ade2">00148</a> <a class="code" href="group__LMS__DB.html#g0ebc0dd37b1c9bcaf7741231a411ade2">lms_db_video_start</a>(<a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *ldv)
144 <a name="l00149"></a>00149 {
145 <a name="l00150"></a>00150 <span class="keywordflow">if</span> (!ldv)
146 <a name="l00151"></a>00151 <span class="keywordflow">return</span> -1;
147 <a name="l00152"></a>00152 <span class="keywordflow">if</span> (ldv->_is_started)
148 <a name="l00153"></a>00153 <span class="keywordflow">return</span> 0;
149 <a name="l00154"></a>00154
150 <a name="l00155"></a>00155 ldv->insert = <a class="code" href="lightmediascanner__db__common_8c.html#5fddf47521f83929b0c90a481fa01c5b">lms_db_compile_stmt</a>(ldv->db,
151 <a name="l00156"></a>00156 <span class="stringliteral">"INSERT OR REPLACE INTO videos (id, title, artist) VALUES (?, ?, ?)"</span>);
152 <a name="l00157"></a>00157 <span class="keywordflow">if</span> (!ldv->insert)
153 <a name="l00158"></a>00158 <span class="keywordflow">return</span> -2;
154 <a name="l00159"></a>00159
155 <a name="l00160"></a>00160 ldv->_is_started = 1;
156 <a name="l00161"></a>00161 <span class="keywordflow">return</span> 0;
157 <a name="l00162"></a>00162 }
158 <a name="l00163"></a>00163
159 <a name="l00176"></a>00176 <span class="keywordtype">int</span>
160 <a name="l00177"></a><a class="code" href="group__LMS__DB.html#g6be7c0922e76acc29542643424cfeac0">00177</a> <a class="code" href="group__LMS__DB.html#g6be7c0922e76acc29542643424cfeac0">lms_db_video_free</a>(<a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *ldv)
161 <a name="l00178"></a>00178 {
162 <a name="l00179"></a>00179 <span class="keywordtype">int</span> r;
163 <a name="l00180"></a>00180
164 <a name="l00181"></a>00181 <span class="keywordflow">if</span> (!ldv)
165 <a name="l00182"></a>00182 <span class="keywordflow">return</span> -1;
166 <a name="l00183"></a>00183 <span class="keywordflow">if</span> (ldv->_references == 0) {
167 <a name="l00184"></a>00184 fprintf(stderr, <span class="stringliteral">"ERROR: over-called lms_db_video_free(%p)\n"</span>, ldv);
168 <a name="l00185"></a>00185 <span class="keywordflow">return</span> -1;
169 <a name="l00186"></a>00186 }
170 <a name="l00187"></a>00187
171 <a name="l00188"></a>00188 ldv->_references--;
172 <a name="l00189"></a>00189 <span class="keywordflow">if</span> (ldv->_references > 0)
173 <a name="l00190"></a>00190 <span class="keywordflow">return</span> 0;
174 <a name="l00191"></a>00191
175 <a name="l00192"></a>00192 <span class="keywordflow">if</span> (ldv->insert)
176 <a name="l00193"></a>00193 <a class="code" href="lightmediascanner__db__common_8c.html#32110a4825e598ca6df329f55b0b62b5">lms_db_finalize_stmt</a>(ldv->insert, <span class="stringliteral">"insert"</span>);
177 <a name="l00194"></a>00194
178 <a name="l00195"></a>00195 r = <a class="code" href="lightmediascanner__db__common_8c.html#296c81e4c64be1c7935ef31038aeb2c0">lms_db_cache_del</a>(&_cache, ldv->db, ldv);
179 <a name="l00196"></a>00196 free(ldv);
180 <a name="l00197"></a>00197
181 <a name="l00198"></a>00198 <span class="keywordflow">return</span> r;
182 <a name="l00199"></a>00199 }
183 <a name="l00200"></a>00200
184 <a name="l00201"></a>00201 <span class="keyword">static</span> <span class="keywordtype">int</span>
185 <a name="l00202"></a>00202 _db_insert(<a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *ldv, <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structlms__video__info.html">lms_video_info</a> *info)
186 <a name="l00203"></a>00203 {
187 <a name="l00204"></a>00204 sqlite3_stmt *stmt;
188 <a name="l00205"></a>00205 <span class="keywordtype">int</span> r, ret;
189 <a name="l00206"></a>00206
190 <a name="l00207"></a>00207 stmt = ldv->insert;
191 <a name="l00208"></a>00208
192 <a name="l00209"></a>00209 ret = <a class="code" href="lightmediascanner__db__common_8c.html#f2fe78bc45dc33d843313a846db5ce7c">lms_db_bind_int64</a>(stmt, 1, info-><a class="code" href="structlms__video__info.html#12b5bc5f8b13bdcb3ee1e919a1e05822">id</a>);
193 <a name="l00210"></a>00210 <span class="keywordflow">if</span> (ret != 0)
194 <a name="l00211"></a>00211 <span class="keywordflow">goto</span> done;
195 <a name="l00212"></a>00212
196 <a name="l00213"></a>00213 ret = <a class="code" href="lightmediascanner__db__common_8c.html#88c461ae88da3eb47987c5a0b15c5888">lms_db_bind_text</a>(stmt, 2, info-><a class="code" href="structlms__video__info.html#f3b8a8168ec317daef65da3b06f72bc0">title</a>.<a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>, info-><a class="code" href="structlms__video__info.html#f3b8a8168ec317daef65da3b06f72bc0">title</a>.<a class="code" href="structlms__string__size.html#fc37b712d71c2010e655bbd4f0a22e96">len</a>);
197 <a name="l00214"></a>00214 <span class="keywordflow">if</span> (ret != 0)
198 <a name="l00215"></a>00215 <span class="keywordflow">goto</span> done;
199 <a name="l00216"></a>00216
200 <a name="l00217"></a>00217 ret = <a class="code" href="lightmediascanner__db__common_8c.html#88c461ae88da3eb47987c5a0b15c5888">lms_db_bind_text</a>(stmt, 3, info-><a class="code" href="structlms__video__info.html#c0bfe0cf4fe29e3c24a6df4248c7640e">artist</a>.<a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>, info-><a class="code" href="structlms__video__info.html#c0bfe0cf4fe29e3c24a6df4248c7640e">artist</a>.<a class="code" href="structlms__string__size.html#fc37b712d71c2010e655bbd4f0a22e96">len</a>);
201 <a name="l00218"></a>00218 <span class="keywordflow">if</span> (ret != 0)
202 <a name="l00219"></a>00219 <span class="keywordflow">goto</span> done;
203 <a name="l00220"></a>00220
204 <a name="l00221"></a>00221 r = sqlite3_step(stmt);
205 <a name="l00222"></a>00222 <span class="keywordflow">if</span> (r != SQLITE_DONE) {
206 <a name="l00223"></a>00223 fprintf(stderr, <span class="stringliteral">"ERROR: could not insert video info: %s\n"</span>,
207 <a name="l00224"></a>00224 sqlite3_errmsg(ldv->db));
208 <a name="l00225"></a>00225 ret = -4;
209 <a name="l00226"></a>00226 <span class="keywordflow">goto</span> done;
210 <a name="l00227"></a>00227 }
211 <a name="l00228"></a>00228
212 <a name="l00229"></a>00229 ret = 0;
213 <a name="l00230"></a>00230
214 <a name="l00231"></a>00231 done:
215 <a name="l00232"></a>00232 <a class="code" href="lightmediascanner__db__common_8c.html#226c6f7ab2e7923b747b7090357ea419">lms_db_reset_stmt</a>(stmt);
216 <a name="l00233"></a>00233
217 <a name="l00234"></a>00234 <span class="keywordflow">return</span> ret;
218 <a name="l00235"></a>00235 }
219 <a name="l00236"></a>00236
220 <a name="l00248"></a>00248 <span class="keywordtype">int</span>
221 <a name="l00249"></a><a class="code" href="lightmediascanner__db__video_8c.html#700adc9c25a70e5cd1d77812324b748e">00249</a> <a class="code" href="group__LMS__DB.html#gb07d1e7fe962486b6e9d00581e8aac19">lms_db_video_add</a>(<a class="code" href="group__LMS__DB.html#gc2e0d2164f90e1ad3c78e05a4d341ec8">lms_db_video_t</a> *ldv, <span class="keyword">struct</span> <a class="code" href="structlms__video__info.html">lms_video_info</a> *info)
222 <a name="l00250"></a>00250 {
223 <a name="l00251"></a>00251 <span class="keywordflow">if</span> (!ldv)
224 <a name="l00252"></a>00252 <span class="keywordflow">return</span> -1;
225 <a name="l00253"></a>00253 <span class="keywordflow">if</span> (!info)
226 <a name="l00254"></a>00254 <span class="keywordflow">return</span> -2;
227 <a name="l00255"></a>00255 <span class="keywordflow">if</span> (info-><a class="code" href="structlms__video__info.html#12b5bc5f8b13bdcb3ee1e919a1e05822">id</a> < 1)
228 <a name="l00256"></a>00256 <span class="keywordflow">return</span> -3;
229 <a name="l00257"></a>00257
230 <a name="l00258"></a>00258 <span class="keywordflow">return</span> _db_insert(ldv, info);
231 <a name="l00259"></a>00259 }
232 </pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Dec 13 02:04:03 2007 for Light Media Scanner by
233 <a href="http://www.doxygen.org/index.html">
234 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address>
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