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<h1>map.c</h1><a href="map_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/* -*- linux-c -*- */</span><span class="comment"></span>
00002 <span class="comment">/** @file map.c</span>
00003 <span class="comment"> * @brief Implements maps (associative arrays) and lists</span>
00004 <span class="comment"> */</span>
00005
00006
00007 <span class="keyword">static</span> <span class="keywordtype">int</span> map_sizes[] = {
00008 <span class="keyword">sizeof</span>(<span class="keyword">struct </span>map_node_int64),
00009 sizeof(struct map_node_stat),
00010 sizeof(struct map_node_str),
00011 0
00012 };
00013
00014 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> string_hash(<span class="keyword">const</span> <span class="keywordtype">char</span> *key1, <span class="keyword">const</span> <span class="keywordtype">char</span> *key2)
00015 {
00016 <span class="keywordtype">int</span> hash = 0, count = 0;
00017 <span class="keywordtype">char</span> *v1 = (<span class="keywordtype">char</span> *)key1;
00018 <span class="keywordtype">char</span> *v2 = (<span class="keywordtype">char</span> *)key2;
00019 <span class="keywordflow">while</span> (*v1 && count++ < 5) {
00020 hash += *v1++;
00021 }
00022 <span class="keywordflow">while</span> (v2 && *v2 && count++ < 5) {
00023 hash += *v2++;
00024 }
00025 <span class="keywordflow">return</span> hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)hash, HASH_TABLE_BITS);
00026 }
00027
00028 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> mixed_hash(<span class="keyword">const</span> <span class="keywordtype">char</span> *key1, <span class="keywordtype">long</span> key2)
00029 {
00030 <span class="keywordtype">int</span> hash = 0, count = 0;
00031 <span class="keywordtype">char</span> *v = (<span class="keywordtype">char</span> *)key1;
00032 <span class="keywordflow">while</span> (v && *v && count++ < 5)
00033 hash += *v++;
00034 return hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)(hash ^ key2), HASH_TABLE_BITS);
00035 }
00036 <span class="comment"></span>
00037 <span class="comment">/** Create a new map.</span>
00038 <span class="comment"> * Maps must be created at module initialization time.</span>
00039 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00040 <span class="comment"> * be preallocated. If more entries are required, the oldest ones will be deleted. This makes</span>
00041 <span class="comment"> * it effectively a circular buffer. If max_entries is 0, there will be no maximum and entries</span>
00042 <span class="comment"> * will be allocated dynamically.</span>
00043 <span class="comment"> * @param type Type of values stored in this map. </span>
00044 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00045 <span class="comment"> */</span>
00046
<a name="l00047"></a><a class="code" href="map_8c.html#a3">00047</a> <a class="code" href="structmap__root.html">MAP</a> _stp_map_new(<span class="keywordtype">unsigned</span> max_entries, enum valtype type)
00048 {
00049 size_t size;
00050 <a class="code" href="structmap__root.html">MAP</a> m = (<a class="code" href="structmap__root.html">MAP</a>) _stp_valloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structmap__root.html">map_root</a>));
00051 <span class="keywordflow">if</span> (m == NULL)
00052 <span class="keywordflow">return</span> NULL;
00053
00054 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o4">head</a>);
00055
00056 m-><a class="code" href="structmap__root.html#o1">maxnum</a> = max_entries;
00057 m-><a class="code" href="structmap__root.html#o0">type</a> = type;
00058 <span class="keywordflow">if</span> (type >= END) {
00059 dbug (<span class="stringliteral">"map_new: unknown type %d\n"</span>, type);
00060 <span class="keywordflow">return</span> NULL;
00061 }
00062
00063 <span class="keywordflow">if</span> (max_entries) {
00064 <span class="keywordtype">void</span> *tmp;
00065 <span class="keywordtype">int</span> i;
00066 <span class="keyword">struct </span>list_head *e;
00067
00068 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o5">pool</a>);
00069 size = map_sizes[type];
00070 tmp = _stp_valloc(max_entries * size);
00071
00072 <span class="keywordflow">for</span> (i = max_entries - 1; i >= 0; i--) {
00073 e = i * size + tmp;
00074 dbug (<span class="stringliteral">"e=%lx\n"</span>, (<span class="keywordtype">long</span>)e);
00075 list_add(e, &m-><a class="code" href="structmap__root.html#o5">pool</a>);
00076 }
00077 m-><a class="code" href="structmap__root.html#o14">membuf</a> = tmp;
00078 }
00079 <span class="keywordflow">return</span> m;
00080 }
00081
00082 <span class="keyword">static</span> <span class="keywordtype">void</span> map_free_strings(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *n)
00083 {
00084 <span class="keyword">struct </span>map_node_str *m = (<span class="keyword">struct </span>map_node_str *)n;
00085 dbug (<span class="stringliteral">"n = %lx\n"</span>, (<span class="keywordtype">long</span>)n);
00086 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o0">type</a> == STRING) {
00087 dbug (<span class="stringliteral">"val STRING %lx\n"</span>, (<span class="keywordtype">long</span>)m->str);
00088 <span class="keywordflow">if</span> (m->str)
00089 _stp_free(m->str);
00090 }
00091 if (m->n.key1type == STR) {
00092 dbug (<span class="stringliteral">"key1 STR %lx\n"</span>, (<span class="keywordtype">long</span>)key1str(m));
00093 <span class="keywordflow">if</span> (key1str(m))
00094 _stp_free(key1str(m));
00095 }
00096 if (m->n.key2type == STR) {
00097 dbug (<span class="stringliteral">"key2 STR %lx\n"</span>, (<span class="keywordtype">long</span>)key2str(m));
00098 <span class="keywordflow">if</span> (key2str(m))
00099 _stp_free(key2str(m));
00100 }
00101 }
00102 <span class="comment"></span>
00103 <span class="comment">/** Deletes the current element.</span>
00104 <span class="comment"> * If no current element (key) for this map is set, this function does nothing.</span>
00105 <span class="comment"> * @param map </span>
00106 <span class="comment"> */</span>
00107
<a name="l00108"></a><a class="code" href="map_8c.html#a5">00108</a> <span class="keywordtype">void</span> _stp_map_key_del(<a class="code" href="structmap__root.html">MAP</a> map)
00109 {
00110 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *m;
00111
00112 dbug (<span class="stringliteral">"create=%d key=%lx\n"</span>, map->create, (<span class="keywordtype">long</span>)map->key);
00113 <span class="keywordflow">if</span> (map == NULL)
00114 <span class="keywordflow">return</span>;
00115
00116 <span class="keywordflow">if</span> (map->create) {
00117 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00118 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00119 <span class="keywordflow">return</span>;
00120 }
00121
00122 <span class="keywordflow">if</span> (map->key == NULL)
00123 <span class="keywordflow">return</span>;
00124
00125 m = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)map->key;
00126
00127 <span class="comment">/* remove node from old hash list */</span>
00128 hlist_del_init(&m-><a class="code" href="structmap__node.html#o1">hnode</a>);
00129
00130 <span class="comment">/* remove from entry list */</span>
00131 list_del(&m-><a class="code" href="structmap__node.html#o0">lnode</a>);
00132
00133 <span class="comment">/* remove any allocated string storage */</span>
00134 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)map->key);
00135
00136 <span class="keywordflow">if</span> (map->maxnum)
00137 list_add(&m-><a class="code" href="structmap__node.html#o0">lnode</a>, &map->pool);
00138 <span class="keywordflow">else</span>
00139 _stp_free(m);
00140
00141 map->key = NULL;
00142 map->num--;
00143 }
00144 <span class="comment"></span>
00145 <span class="comment">/** Get the first element in a map.</span>
00146 <span class="comment"> * @param map </span>
00147 <span class="comment"> * @returns a pointer to the first element.</span>
00148 <span class="comment"> * This is typically used with _stp_map_iter(). See the foreach() macro</span>
00149 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00150 <span class="comment"> * @sa foreach</span>
00151 <span class="comment"> */</span>
00152
<a name="l00153"></a><a class="code" href="map_8c.html#a6">00153</a> <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *<a class="code" href="map_8c.html#a6">_stp_map_start</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00154 {
00155 <span class="keywordflow">if</span> (map == NULL)
00156 <span class="keywordflow">return</span> NULL;
00157
00158 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o4">head</a>.next);
00159
00160 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>))
00161 <span class="keywordflow">return</span> NULL;
00162
00163 <span class="keywordflow">return</span> (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00164 }
00165 <span class="comment"></span>
00166 <span class="comment">/** Get the next element in a map.</span>
00167 <span class="comment"> * @param map </span>
00168 <span class="comment"> * @param m a pointer to the current element, returned from _stp_map_start()</span>
00169 <span class="comment"> * or _stp_map_iter().</span>
00170 <span class="comment"> * @returns a pointer to the next element.</span>
00171 <span class="comment"> * This is typically used with _stp_map_start(). See the foreach() macro</span>
00172 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00173 <span class="comment"> * @sa foreach</span>
00174 <span class="comment"> */</span>
00175
<a name="l00176"></a><a class="code" href="map_8c.html#a7">00176</a> <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *<a class="code" href="map_8c.html#a7">_stp_map_iter</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *m)
00177 {
00178 <span class="keywordflow">if</span> (map == NULL)
00179 <span class="keywordflow">return</span> NULL;
00180
00181 dbug (<span class="stringliteral">"%lx next=%lx prev=%lx map->head.next=%lx\n"</span>, (<span class="keywordtype">long</span>)m,
00182 (<span class="keywordtype">long</span>)m->lnode.next, (<span class="keywordtype">long</span>)m->lnode.prev, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o4">head</a>.next);
00183
00184 <span class="keywordflow">if</span> (m->lnode.next == &map-><a class="code" href="structmap__root.html#o4">head</a>)
00185 <span class="keywordflow">return</span> NULL;
00186
00187 <span class="keywordflow">return</span> (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m-><a class="code" href="structmap__node.html#o0">lnode</a>.next;
00188 }
00189 <span class="comment"></span>
00190 <span class="comment">/** Deletes a map.</span>
00191 <span class="comment"> * Deletes a map, freeing all memory in all elements. Normally done only when the module exits.</span>
00192 <span class="comment"> * @param map</span>
00193 <span class="comment"> */</span>
00194
<a name="l00195"></a><a class="code" href="map_8c.html#a8">00195</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a8">_stp_map_del</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00196 {
00197 <span class="keywordflow">if</span> (map == NULL)
00198 <span class="keywordflow">return</span>;
00199
00200 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00201 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *ptr = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00202 <span class="keywordflow">while</span> (ptr && ptr != (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)&map-><a class="code" href="structmap__root.html#o4">head</a>) {
00203 map_free_strings(map, ptr);
00204 ptr = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)ptr-><a class="code" href="structmap__node.html#o0">lnode</a>.next;
00205 }
00206 }
00207 _stp_vfree(map-><a class="code" href="structmap__root.html#o14">membuf</a>);
00208 _stp_vfree(map);
00209 }
00210
00211 <span class="comment">/********************** KEY FUNCTIONS *********************/</span>
00212
00213 <span class="comment"></span>
00214 <span class="comment">/** Set the map's key to two longs.</span>
00215 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00216 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00217 <span class="comment"> * call.</span>
00218 <span class="comment"> * @param map</span>
00219 <span class="comment"> * @param key1 first key</span>
00220 <span class="comment"> * @param key2 second key</span>
00221 <span class="comment"> */</span>
00222
<a name="l00223"></a><a class="code" href="map_8c.html#a9">00223</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a9">_stp_map_key_long_long</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">long</span> key1, <span class="keywordtype">long</span> key2)
00224 {
00225 <span class="keywordtype">unsigned</span> hv;
00226 <span class="keyword">struct </span>hlist_head *head;
00227 <span class="keyword">struct </span>hlist_node *e;
00228
00229 <span class="keywordflow">if</span> (map == NULL)
00230 <span class="keywordflow">return</span>;
00231
00232 hv = hash_long(key1 ^ key2, HASH_TABLE_BITS);
00233 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00234
00235 dbug (<span class="stringliteral">"hash for %ld,%ld is %d\n"</span>, key1, key2, hv);
00236
00237 hlist_for_each(e, head) {
00238 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00239 (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00240 dbug (<span class="stringliteral">"n =%lx key=%ld,%ld\n"</span>, (<span class="keywordtype">long</span>)n, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o0">val</a>, n->key2.<a class="code" href="unionkey__data.html#o0">val</a>);
00241 <span class="keywordflow">if</span> (key1 == n->key1.val && key2 == n->key2.val) {
00242 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00243 dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00244 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00245 <span class="keywordflow">return</span>;
00246 }
00247 }
00248
00249 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00250 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00251 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00252 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00253 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00254 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00255 }
00256 <span class="comment"></span>
00257 <span class="comment">/** Set the map's key to two strings.</span>
00258 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00259 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00260 <span class="comment"> * call.</span>
00261 <span class="comment"> * @param map</span>
00262 <span class="comment"> * @param key1 first key</span>
00263 <span class="comment"> * @param key2 second key</span>
00264 <span class="comment"> */</span>
00265
<a name="l00266"></a><a class="code" href="map_8c.html#a10">00266</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a10">_stp_map_key_str_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *key1, <span class="keywordtype">char</span> *key2)
00267 {
00268 <span class="keywordtype">unsigned</span> hv;
00269 <span class="keyword">struct </span>hlist_head *head;
00270 <span class="keyword">struct </span>hlist_node *e;
00271
00272 <span class="keywordflow">if</span> (map == NULL)
00273 <span class="keywordflow">return</span>;
00274
00275 <span class="keywordflow">if</span> (key1 == NULL) {
00276 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00277 <span class="keywordflow">return</span>;
00278 }
00279
00280 hv = string_hash(key1, key2);
00281 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00282
00283 dbug (<span class="stringliteral">"hash for %s,%s is %d\n"</span>, key1, key2, hv);
00284
00285 hlist_for_each(e, head) {
00286 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00287 (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00288 dbug (<span class="stringliteral">"e =%lx key=%s,%s\n"</span>, (<span class="keywordtype">long</span>)e, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>,n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>);
00289 <span class="keywordflow">if</span> (strcmp(key1, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>) == 0
00290 && (key2 == NULL || strcmp(key2, n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>) == 0)) {
00291 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00292 dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00293 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00294 <span class="keywordflow">return</span>;
00295 }
00296 }
00297
00298 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00299 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00300 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00301 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00302 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00303 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00304 }
00305 <span class="comment"></span>
00306 <span class="comment">/** Set the map's key to a string and a long.</span>
00307 <span class="comment"> * This sets the current element based on a key of a string and a long. If the keys are</span>
00308 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00309 <span class="comment"> * call.</span>
00310 <span class="comment"> * @param map</span>
00311 <span class="comment"> * @param key1 first key</span>
00312 <span class="comment"> * @param key2 second key</span>
00313 <span class="comment"> */</span>
00314
<a name="l00315"></a><a class="code" href="map_8c.html#a11">00315</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a11">_stp_map_key_str_long</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *key1, <span class="keywordtype">long</span> key2)
00316 {
00317 <span class="keywordtype">unsigned</span> hv;
00318 <span class="keyword">struct </span>hlist_head *head;
00319 <span class="keyword">struct </span>hlist_node *e;
00320
00321 <span class="keywordflow">if</span> (map == NULL)
00322 <span class="keywordflow">return</span>;
00323
00324 <span class="keywordflow">if</span> (key1 == NULL) {
00325 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00326 <span class="keywordflow">return</span>;
00327 }
00328
00329 hv = mixed_hash(key1, key2);
00330 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00331
00332 dbug (<span class="stringliteral">"hash for %s,%ld is %d\n"</span>, key1, key2, hv);
00333
00334 hlist_for_each(e, head) {
00335 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00336 (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00337 dbug (<span class="stringliteral">"e =%lx key=%s,%ld\n"</span>, (<span class="keywordtype">long</span>)e, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>,(<span class="keywordtype">long</span>)n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o0">val</a>);
00338 <span class="keywordflow">if</span> (strcmp(key1, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>) == 0 && key2 == n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o0">val</a>) {
00339 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00340 dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00341 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00342 <span class="keywordflow">return</span>;
00343 }
00344 }
00345
00346 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00347 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00348 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00349 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00350 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00351 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00352 }
00353 <span class="comment"></span>
00354 <span class="comment">/** Set the map's key to a long and a string.</span>
00355 <span class="comment"> * This sets the current element based on a key of a long and a string. If the keys are</span>
00356 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00357 <span class="comment"> * call.</span>
00358 <span class="comment"> * @param map</span>
00359 <span class="comment"> * @param key1 first key</span>
00360 <span class="comment"> * @param key2 second key</span>
00361 <span class="comment"> */</span>
00362
<a name="l00363"></a><a class="code" href="map_8c.html#a12">00363</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a12">_stp_map_key_long_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">long</span> key1, <span class="keywordtype">char</span> *key2)
00364 {
00365 <span class="keywordtype">unsigned</span> hv;
00366 <span class="keyword">struct </span>hlist_head *head;
00367 <span class="keyword">struct </span>hlist_node *e;
00368
00369 <span class="keywordflow">if</span> (map == NULL)
00370 <span class="keywordflow">return</span>;
00371
00372 hv = mixed_hash(key2, key1);
00373 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00374 dbug (<span class="stringliteral">"hash for %ld,%s is %d\n"</span>, key1, key2, hv);
00375
00376 hlist_for_each(e, head) {
00377 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00378 (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00379 dbug (<span class="stringliteral">"e =%lx key=%ld,%s\n"</span>, (<span class="keywordtype">long</span>)e, n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o0">val</a>,n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>);
00380 <span class="keywordflow">if</span> (key1 == n-><a class="code" href="structmap__node.html#o2">key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> && strcmp(key2, n-><a class="code" href="structmap__node.html#o3">key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>) == 0) {
00381 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00382 dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00383 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00384 <span class="keywordflow">return</span>;
00385 }
00386 }
00387
00388 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00389 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00390 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00391 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00392 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00393 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00394 }
00395 <span class="comment"></span>
00396 <span class="comment">/** Set the map's key to a string.</span>
00397 <span class="comment"> * This sets the current element based on a string key. If the key is</span>
00398 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00399 <span class="comment"> * call.</span>
00400 <span class="comment"> * @param map</span>
00401 <span class="comment"> * @param key</span>
00402 <span class="comment"> */</span>
00403
<a name="l00404"></a><a class="code" href="map_8c.html#a13">00404</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a13">_stp_map_key_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *key)
00405 {
00406 <span class="keywordflow">if</span> (map == NULL)
00407 <span class="keywordflow">return</span>;
00408 <a class="code" href="map_8c.html#a10">_stp_map_key_str_str</a>(map, key, NULL);
00409 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00410 }
00411 <span class="comment"></span>
00412 <span class="comment">/** Set the map's key to a long.</span>
00413 <span class="comment"> * This sets the current element based on a long key. If the key is</span>
00414 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00415 <span class="comment"> * call.</span>
00416 <span class="comment"> * @param map</span>
00417 <span class="comment"> * @param key </span>
00418 <span class="comment"> */</span>
00419
<a name="l00420"></a><a class="code" href="map_8c.html#a14">00420</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a14">_stp_map_key_long</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">long</span> key)
00421 {
00422 <span class="keywordflow">if</span> (map == NULL)
00423 <span class="keywordflow">return</span>;
00424 <a class="code" href="map_8c.html#a9">_stp_map_key_long_long</a>(map, key, 0);
00425 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00426 }
00427
00428 <span class="comment">/********************** SET/GET VALUES *********************/</span>
00429
00430 <span class="keyword">static</span> <span class="keywordtype">void</span> map_copy_keys(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *m)
00431 {
00432 m->key1type = map-><a class="code" href="structmap__root.html#o8">c_key1type</a>;
00433 m->key2type = map-><a class="code" href="structmap__root.html#o9">c_key2type</a>;
00434 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o8">c_key1type</a>) {
00435 <span class="keywordflow">case</span> STR:
00436 m->key1.str = _stp_alloc(strlen(map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>) + 1);
00437 strcpy(m->key1.str, map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>);
00438 <span class="keywordflow">break</span>;
00439 <span class="keywordflow">case</span> LONG:
00440 m->key1.val = map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a>;
00441 <span class="keywordflow">break</span>;
00442 <span class="keywordflow">case</span> NONE:
00443 <span class="comment">/* ERROR */</span>
00444 <span class="keywordflow">break</span>;
00445 }
00446 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o9">c_key2type</a>) {
00447 <span class="keywordflow">case</span> STR:
00448 m->key2.<a class="code" href="unionkey__data.html#o1">str</a> = _stp_alloc(strlen(map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>) + 1);
00449 strcpy(m->key2.str, map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>);
00450 <span class="keywordflow">break</span>;
00451 <span class="keywordflow">case</span> LONG:
00452 m->key2.<a class="code" href="unionkey__data.html#o0">val</a> = map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a>;
00453 <span class="keywordflow">break</span>;
00454 <span class="keywordflow">case</span> NONE:
00455 <span class="keywordflow">break</span>;
00456 }
00457
00458 <span class="comment">/* add node to new hash list */</span>
00459 hlist_add_head(&m->hnode, map-><a class="code" href="structmap__root.html#o10">c_keyhead</a>);
00460
00461 map-><a class="code" href="structmap__root.html#o6">key</a> = m;
00462 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00463 map-><a class="code" href="structmap__root.html#o2">num</a>++;
00464 }
00465
00466 <span class="keyword">static</span> <span class="keywordtype">void</span> __stp_map_set_int64(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val, <span class="keywordtype">int</span> add)
00467 {
00468 <span class="keyword">struct </span>map_node_int64 *m;
00469
00470 <span class="keywordflow">if</span> (map == NULL)
00471 return;
00472
00473 if (map->create) {
00474 <span class="keywordflow">if</span> (val == 0)
00475 return;
00476
00477 if (map->maxnum) {
00478 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00479 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00480 <span class="comment">/* ERROR. FIXME */</span>
00481 <span class="keywordflow">return</span>;
00482 }
00483 m = (<span class="keyword">struct </span>map_node_int64 *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00484 hlist_del_init(&m->n.hnode);
00485 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00486 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00487 } <span class="keywordflow">else</span> {
00488 m = (<span class="keyword">struct </span>map_node_int64 *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00489 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00490 }
00491 list_move_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00492 } <span class="keywordflow">else</span> {
00493 m = (<span class="keyword">struct </span>map_node_int64 *)
00494 _stp_calloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_int64));
00495 <span class="comment">/* add node to list */</span>
00496 list_add_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00497 }
00498
00499 <span class="comment">/* copy the key(s) */</span>
00500 map_copy_keys(map, &m->n);
00501
00502 <span class="comment">/* set the value */</span>
00503 m->val = val;
00504 } <span class="keywordflow">else</span> {
00505 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00506 return;
00507
00508 if (val) {
00509 m = (<span class="keyword">struct </span>map_node_int64 *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00510 <span class="keywordflow">if</span> (add)
00511 m->val += val;
00512 else
00513 m->val = val;
00514 } else if (!add) {
00515 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00516 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00517 }
00518 }
00519 }
00520 <span class="comment"></span>
00521 <span class="comment">/** Set the current element's value to an int64.</span>
00522 <span class="comment"> * This sets the current element's value to an int64. The map must have been created</span>
00523 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00524 <span class="comment"> *</span>
00525 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00526 <span class="comment"> * is set for the map, this function does nothing.</span>
00527 <span class="comment"> * @param map</span>
00528 <span class="comment"> * @param val new value</span>
00529 <span class="comment"> * @sa _stp_map_add_int64</span>
00530 <span class="comment"> */</span>
<a name="l00531"></a><a class="code" href="map_8c.html#a17">00531</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a17">_stp_map_set_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00532 {
00533 __stp_map_set_int64 (map, val, 0);
00534 }
00535
00536 <span class="comment"></span>
00537 <span class="comment">/** Adds an int64 to the current element's value.</span>
00538 <span class="comment"> * This adds an int64 to the current element's value. The map must have been created</span>
00539 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00540 <span class="comment"> *</span>
00541 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00542 <span class="comment"> * is set for the map, this function does nothing.</span>
00543 <span class="comment"> * @param map</span>
00544 <span class="comment"> * @param val value</span>
00545 <span class="comment"> * @sa _stp_map_set_int64</span>
00546 <span class="comment"> */</span>
00547
<a name="l00548"></a><a class="code" href="map_8c.html#a18">00548</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a18">_stp_map_add_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00549 {
00550 __stp_map_set_int64 (map, val, 1);
00551 }
00552 <span class="comment"></span>
00553 <span class="comment">/** Gets the current element's value.</span>
00554 <span class="comment"> * @param map</span>
00555 <span class="comment"> * @returns The value. If the current element is not set or doesn't exist, returns 0.</span>
00556 <span class="comment"> */</span>
00557
<a name="l00558"></a><a class="code" href="map_8c.html#a19">00558</a> int64_t <a class="code" href="map_8c.html#a19">_stp_map_get_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00559 {
00560 <span class="keyword">struct </span>map_node_int64 *m;
00561 <span class="keywordflow">if</span> (map == NULL || map-><a class="code" href="structmap__root.html#o7">create</a> || map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00562 <span class="keywordflow">return</span> 0;
00563 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00564 m = (<span class="keyword">struct </span>map_node_int64 *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00565 <span class="keywordflow">return</span> m->val;
00566 }
00567 <span class="comment"></span>
00568 <span class="comment">/** Set the current element's value to a string.</span>
00569 <span class="comment"> * This sets the current element's value to an string. The map must have been created</span>
00570 <span class="comment"> * to hold int64s using <i>_stp_map_new(xxx, STRING)</i></span>
00571 <span class="comment"> *</span>
00572 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00573 <span class="comment"> * is set for the map, this function does nothing.</span>
00574 <span class="comment"> * @param map</span>
00575 <span class="comment"> * @param val new string</span>
00576 <span class="comment"> */</span>
00577
<a name="l00578"></a><a class="code" href="map_8c.html#a20">00578</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a20">_stp_map_set_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *val)
00579 {
00580 <span class="keyword">struct </span>map_node_str *m;
00581
00582 <span class="keywordflow">if</span> (map == NULL)
00583 <span class="keywordflow">return</span>;
00584
00585 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00586 <span class="keywordflow">if</span> (val == NULL)
00587 <span class="keywordflow">return</span>;
00588
00589 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00590 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00591 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00592 <span class="comment">/* ERROR. FIXME */</span>
00593 <span class="keywordflow">return</span>;
00594 }
00595 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00596 hlist_del_init(&m->n.hnode);
00597 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00598 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00599 } <span class="keywordflow">else</span> {
00600 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00601 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00602 }
00603 list_move_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00604 } <span class="keywordflow">else</span> {
00605 m = (<span class="keyword">struct </span>map_node_str *)
00606 _stp_calloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_str));
00607 <span class="comment">/* add node to list */</span>
00608 list_add_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00609 }
00610
00611 <span class="comment">/* copy the key(s) */</span>
00612 map_copy_keys(map, &m->n);
00613
00614 <span class="comment">/* set the value */</span>
00615 m->str = _stp_alloc(strlen(val) + 1);
00616 strcpy(m->str, val);
00617 } <span class="keywordflow">else</span> {
00618 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00619 <span class="keywordflow">return</span>;
00620
00621 <span class="keywordflow">if</span> (val) {
00622 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00623 <span class="keywordflow">if</span> (m->str)
00624 _stp_free(m->str);
00625 m->str = _stp_alloc(strlen(val) + 1);
00626 strcpy(m->str, val);
00627 } <span class="keywordflow">else</span> {
00628 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00629 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00630 }
00631 }
00632 }
00633 <span class="comment"></span>
00634 <span class="comment">/** Gets the current element's value.</span>
00635 <span class="comment"> * @param map</span>
00636 <span class="comment"> * @returns A string pointer. If the current element is not set or doesn't exist, returns NULL.</span>
00637 <span class="comment"> */</span>
00638
<a name="l00639"></a><a class="code" href="map_8c.html#a21">00639</a> <span class="keywordtype">char</span> *<a class="code" href="map_8c.html#a21">_stp_map_get_str</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00640 {
00641 <span class="keyword">struct </span>map_node_str *m;
00642 <span class="keywordflow">if</span> (map == NULL || map-><a class="code" href="structmap__root.html#o7">create</a> || map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00643 <span class="keywordflow">return</span> NULL;
00644 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00645 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00646 <span class="keywordflow">return</span> m->str;
00647 }
00648 <span class="comment"></span>
00649 <span class="comment">/** Set the current element's value to a stat.</span>
00650 <span class="comment"> * This sets the current element's value to an stat struct. The map must have been created</span>
00651 <span class="comment"> * to hold stats using <i>_stp_map_new(xxx, STAT)</i>. This function would only be used</span>
00652 <span class="comment"> * if we wanted to set stats to something other than the normal initial values (count = 0,</span>
00653 <span class="comment"> * sum = 0, etc). It may be deleted if it doesn't turn out to be useful.</span>
00654 <span class="comment"> * @sa _stp_map_stat_add </span>
00655 <span class="comment"> *</span>
00656 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00657 <span class="comment"> * is set for the map, this function does nothing.</span>
00658 <span class="comment"> * @param map</span>
00659 <span class="comment"> * @param stats pointer to stats struct.</span>
00660 <span class="comment"> * @todo Histograms don't work yet.</span>
00661 <span class="comment"> */</span>
00662
<a name="l00663"></a><a class="code" href="map_8c.html#a22">00663</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a22">_stp_map_set_stat</a>(<a class="code" href="structmap__root.html">MAP</a> map, <a class="code" href="structstat.html">stat</a> * stats)
00664 {
00665 <span class="keyword">struct </span>map_node_stat *m;
00666
00667 <span class="keywordflow">if</span> (map == NULL)
00668 <span class="keywordflow">return</span>;
00669 dbug (<span class="stringliteral">"set_stat %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00670
00671 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00672 <span class="keywordflow">if</span> (stats == NULL)
00673 <span class="keywordflow">return</span>;
00674
00675 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00676 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00677 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00678 <span class="comment">/* ERROR. FIXME */</span>
00679 <span class="keywordflow">return</span>;
00680 }
00681 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00682 hlist_del_init(&m->n.hnode);
00683 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00684 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00685 } <span class="keywordflow">else</span> {
00686 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00687 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00688 }
00689 list_move_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00690 } <span class="keywordflow">else</span> {
00691 m = (<span class="keyword">struct </span>map_node_stat *)
00692 _stp_calloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_stat));
00693 <span class="comment">/* add node to list */</span>
00694 list_add_tail(&m->n.lnode, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00695 }
00696
00697 <span class="comment">/* copy the key(s) */</span>
00698 map_copy_keys(map, &m->n);
00699
00700 <span class="comment">/* set the value */</span>
00701 memcpy(&m->stats, stats, <span class="keyword">sizeof</span>(<a class="code" href="structstat.html">stat</a>));
00702 } <span class="keywordflow">else</span> {
00703 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00704 <span class="keywordflow">return</span>;
00705
00706 <span class="keywordflow">if</span> (stats) {
00707 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00708 memcpy(&m->stats, stats, <span class="keyword">sizeof</span>(<a class="code" href="structstat.html">stat</a>));
00709 } <span class="keywordflow">else</span> {
00710 <span class="comment">/* setting value to NULL is the same as deleting */</span>
00711 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00712 }
00713 }
00714 }
00715 <span class="comment"></span>
00716 <span class="comment">/** Gets the current element's value.</span>
00717 <span class="comment"> * @param map</span>
00718 <span class="comment"> * @returns A pointer to the stats struct. If the current element is not set </span>
00719 <span class="comment"> * or doesn't exist, returns NULL.</span>
00720 <span class="comment"> */</span>
00721
<a name="l00722"></a><a class="code" href="map_8c.html#a23">00722</a> <a class="code" href="structstat.html">stat</a> *<a class="code" href="map_8c.html#a23">_stp_map_get_stat</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00723 {
00724 <span class="keyword">struct </span>map_node_stat *m;
00725 <span class="keywordflow">if</span> (map == NULL || map-><a class="code" href="structmap__root.html#o7">create</a> || map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00726 <span class="keywordflow">return</span> NULL;
00727 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00728 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00729 <span class="keywordflow">return</span> &m->stats;
00730 }
00731 <span class="comment"></span>
00732 <span class="comment">/** Add to the current element's statistics.</span>
00733 <span class="comment"> * Increments the statistics counter by one and the sum by <i>val</i>.</span>
00734 <span class="comment"> * Adjusts minimum, maximum, and histogram.</span>
00735 <span class="comment"> *</span>
00736 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00737 <span class="comment"> * is set for the map, this function does nothing.</span>
00738 <span class="comment"> * @param map</span>
00739 <span class="comment"> * @param val value to add to the statistics</span>
00740 <span class="comment"> * @todo Histograms don't work yet.</span>
00741 <span class="comment"> */</span>
00742
<a name="l00743"></a><a class="code" href="map_8c.html#a24">00743</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a24">_stp_map_stat_add</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00744 {
00745 <span class="keyword">struct </span>map_node_stat *m;
00746 <span class="keywordflow">if</span> (map == NULL)
00747 <span class="keywordflow">return</span>;
00748
00749 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00750 <a class="code" href="structstat.html">stat</a> st = { 1, val, val, val };
00751 <span class="comment">/* histogram */</span>
00752 <a class="code" href="map_8c.html#a22">_stp_map_set_stat</a>(map, &st);
00753 <span class="keywordflow">return</span>;
00754 }
00755
00756 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00757 <span class="keywordflow">return</span>;
00758
00759 dbug (<span class="stringliteral">"add_stat %lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00760 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00761 m->stats.count++;
00762 m->stats.sum += val;
00763 <span class="keywordflow">if</span> (val > m->stats.max)
00764 m->stats.max = val;
00765 <span class="keywordflow">if</span> (val < m->stats.min)
00766 m->stats.min = val;
00767 <span class="comment">/* histogram */</span>
00768 }
00769
00770 <span class="comment">/********************** List Functions *********************/</span>
00771 <span class="comment"></span>
00772 <span class="comment">/** Create a new list.</span>
00773 <span class="comment"> * A list is a map that internally has an incrementing long key for each member.</span>
00774 <span class="comment"> * Lists do not wrap if elements are added to exceed their maximum size.</span>
00775 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00776 <span class="comment"> * be preallocated. If max_entries is 0, there will be no maximum and entries</span>
00777 <span class="comment"> * will be allocated dynamically.</span>
00778 <span class="comment"> * @param type Type of values stored in this list. </span>
00779 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00780 <span class="comment"> * @sa foreach</span>
00781 <span class="comment"> */</span>
00782
<a name="l00783"></a><a class="code" href="map_8c.html#a25">00783</a> <a class="code" href="structmap__root.html">MAP</a> <a class="code" href="map_8c.html#a25">_stp_list_new</a>(<span class="keywordtype">unsigned</span> max_entries, <span class="keyword">enum</span> valtype type)
00784 {
00785 <a class="code" href="structmap__root.html">MAP</a> map = <a class="code" href="map_8c.html#a3">_stp_map_new</a> (max_entries, type);
00786 map-><a class="code" href="structmap__root.html#o3">no_wrap</a> = 1;
00787 <span class="keywordflow">return</span> map;
00788 }
00789 <span class="comment"></span>
00790 <span class="comment">/** Clears a list.</span>
00791 <span class="comment"> * All elements in the list are deleted.</span>
00792 <span class="comment"> * @param map </span>
00793 <span class="comment"> */</span>
00794
<a name="l00795"></a><a class="code" href="map_8c.html#a26">00795</a> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a26">_stp_list_clear</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00796 {
00797 <span class="keywordflow">if</span> (map == NULL)
00798 <span class="keywordflow">return</span>;
00799
00800 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00801 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *ptr = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00802
00803 <span class="keywordflow">while</span> (ptr && ptr != (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)&map-><a class="code" href="structmap__root.html#o4">head</a>) {
00804 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *next = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)ptr-><a class="code" href="structmap__node.html#o0">lnode</a>.next;
00805
00806 <span class="comment">/* remove node from old hash list */</span>
00807 hlist_del_init(&ptr-><a class="code" href="structmap__node.html#o1">hnode</a>);
00808
00809 <span class="comment">/* remove from entry list */</span>
00810 list_del(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>);
00811
00812 <span class="comment">/* remove any allocated string storage */</span>
00813 map_free_strings(map, ptr);
00814
00815 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>)
00816 list_add(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o5">pool</a>);
00817 <span class="keywordflow">else</span>
00818 _stp_free(ptr);
00819
00820 map-><a class="code" href="structmap__root.html#o2">num</a>--;
00821 ptr = next;
00822 }
00823 }
00824
00825 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o2">num</a> != 0) {
00826 dlog (<span class="stringliteral">"ERROR: list is supposed to be empty (has %d)\n"</span>, map-><a class="code" href="structmap__root.html#o2">num</a>);
00827 }
00828 }
00829 <span class="comment"></span>
00830 <span class="comment">/** Adds a string to a list.</span>
00831 <span class="comment"> * @param map</span>
00832 <span class="comment"> * @param str</span>
00833 <span class="comment"> */</span>
00834
<a name="l00835"></a><a class="code" href="map_8c.html#a27">00835</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a27">_stp_list_add_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *str)
00836 {
00837 <a class="code" href="map_8c.html#a14">_stp_map_key_long</a>(map, map-><a class="code" href="structmap__root.html#o2">num</a>);
00838 <a class="code" href="map_8c.html#a20">_stp_map_set_str</a>(map, str);
00839 }
00840 <span class="comment"></span>
00841 <span class="comment">/** Adds an int64 to a list.</span>
00842 <span class="comment"> * @param map</span>
00843 <span class="comment"> * @param val</span>
00844 <span class="comment"> */</span>
00845
<a name="l00846"></a><a class="code" href="map_8c.html#a28">00846</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="map_8c.html#a28">_stp_list_add_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00847 {
00848 <a class="code" href="map_8c.html#a14">_stp_map_key_long</a>(map, map-><a class="code" href="structmap__root.html#o2">num</a>);
00849 <a class="code" href="map_8c.html#a17">_stp_map_set_int64</a>(map, val);
00850 }
00851 <span class="comment"></span>
00852 <span class="comment">/** Get the number of elements in a list.</span>
00853 <span class="comment"> * @param map</span>
00854 <span class="comment"> * @returns The number of elements in a list.</span>
00855 <span class="comment"> */</span>
00856
<a name="l00857"></a><a class="code" href="map_8c.html#a29">00857</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="map_8c.html#a29">_stp_list_size</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00858 {
00859 <span class="keywordflow">return</span> map-><a class="code" href="structmap__root.html#o2">num</a>;
00860 }
</pre></div><hr size="1"><address style="align: right;"><small>
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