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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="preprocessor">#ifndef _MAP_C_</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define _MAP_C_</span>
00003 <span class="preprocessor"></span>
00004 <span class="comment">/* -*- linux-c -*- */</span><span class="comment"></span>
00005 <span class="comment">/** @file map.c</span>
00006 <span class="comment"> * @brief Implements maps (associative arrays) and lists</span>
00007 <span class="comment"> */</span>
00008
00009 <span class="preprocessor">#include "<a class="code" href="map_8h.html">map.h</a>"</span>
00010 <span class="preprocessor">#include "<a class="code" href="alloc_8c.html">alloc.c</a>"</span>
00011
00012 <span class="keyword">static</span> <span class="keywordtype">int</span> map_sizes[] = {
00013 <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a>),
00014 sizeof(struct map_node_stat),
00015 sizeof(struct map_node_str),
00016 0
00017 };
00018
00019 <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)
00020 {
00021 <span class="keywordtype">int</span> hash = 0, count = 0;
00022 <span class="keywordtype">char</span> *v1 = (<span class="keywordtype">char</span> *)key1;
00023 <span class="keywordtype">char</span> *v2 = (<span class="keywordtype">char</span> *)key2;
00024 <span class="keywordflow">while</span> (*v1 && count++ < 5) {
00025 hash += *v1++;
00026 }
00027 <span class="keywordflow">while</span> (v2 && *v2 && count++ < 5) {
00028 hash += *v2++;
00029 }
00030 <span class="keywordflow">return</span> hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)hash, HASH_TABLE_BITS);
00031 }
00032
00033 <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)
00034 {
00035 <span class="keywordtype">int</span> hash = 0, count = 0;
00036 <span class="keywordtype">char</span> *v = (<span class="keywordtype">char</span> *)key1;
00037 <span class="keywordflow">while</span> (v && *v && count++ < 5)
00038 hash += *v++;
00039 return hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)(hash ^ key2), HASH_TABLE_BITS);
00040 }
00041 <span class="comment"></span>
00042 <span class="comment">/** @addtogroup maps </span>
00043 <span class="comment"> * Implements maps (associative arrays) and lists</span>
00044 <span class="comment"> * @{ </span>
00045 <span class="comment"> */</span>
00046 <span class="comment"></span>
00047 <span class="comment">/** Create a new map.</span>
00048 <span class="comment"> * Maps must be created at module initialization time.</span>
00049 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00050 <span class="comment"> * be preallocated. If more entries are required, the oldest ones will be deleted. This makes</span>
00051 <span class="comment"> * it effectively a circular buffer. If max_entries is 0, there will be no maximum and entries</span>
00052 <span class="comment"> * will be allocated dynamically.</span>
00053 <span class="comment"> * @param type Type of values stored in this map. </span>
00054 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00055 <span class="comment"> */</span>
00056
<a name="l00057"></a><a class="code" href="group__maps.html#ga2">00057</a> <a class="code" href="structmap__root.html">MAP</a> _stp_map_new(<span class="keywordtype">unsigned</span> max_entries, enum valtype type)
00058 {
00059 size_t size;
00060 <a class="code" href="structmap__root.html">MAP</a> m = (<a class="code" href="structmap__root.html">MAP</a>) <a class="code" href="group__alloc.html#ga3">_stp_valloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structmap__root.html">map_root</a>));
00061 <span class="keywordflow">if</span> (m == NULL)
00062 <span class="keywordflow">return</span> NULL;
00063
00064 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o4">head</a>);
00065
00066 m-><a class="code" href="structmap__root.html#o1">maxnum</a> = max_entries;
00067 m-><a class="code" href="structmap__root.html#o0">type</a> = type;
00068 <span class="keywordflow">if</span> (type >= END) {
00069 dbug (<span class="stringliteral">"map_new: unknown type %d\n"</span>, type);
00070 <span class="keywordflow">return</span> NULL;
00071 }
00072
00073 <span class="keywordflow">if</span> (max_entries) {
00074 <span class="keywordtype">void</span> *tmp;
00075 <span class="keywordtype">int</span> i;
00076 <span class="keyword">struct </span>list_head *e;
00077
00078 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o5">pool</a>);
00079 size = map_sizes[type];
00080 tmp = <a class="code" href="group__alloc.html#ga3">_stp_valloc</a>(max_entries * size);
00081
00082 <span class="keywordflow">for</span> (i = max_entries - 1; i >= 0; i--) {
00083 e = i * size + tmp;
00084 dbug (<span class="stringliteral">"e=%lx\n"</span>, (<span class="keywordtype">long</span>)e);
00085 list_add(e, &m-><a class="code" href="structmap__root.html#o5">pool</a>);
00086 }
00087 m-><a class="code" href="structmap__root.html#o14">membuf</a> = tmp;
00088 }
00089 <span class="keywordflow">return</span> m;
00090 }
00091
00092 <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)
00093 {
00094 <span class="keyword">struct </span>map_node_str *m = (<span class="keyword">struct </span>map_node_str *)n;
00095 dbug (<span class="stringliteral">"n = %lx\n"</span>, (<span class="keywordtype">long</span>)n);
00096 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o0">type</a> == STRING) {
00097 dbug (<span class="stringliteral">"val STRING %lx\n"</span>, (<span class="keywordtype">long</span>)m-><a class="code" href="structmap__node__str.html#o1">str</a>);
00098 <span class="keywordflow">if</span> (m-><a class="code" href="structmap__node__str.html#o1">str</a>)
00099 _stp_free(m->str);
00100 }
00101 if (m->n.key1type == STR) {
00102 dbug (<span class="stringliteral">"key1 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="group__maps.html#ga24">key1str</a>(m));
00103 <span class="keywordflow">if</span> (<a class="code" href="group__maps.html#ga24">key1str</a>(m))
00104 _stp_free(key1str(m));
00105 }
00106 if (m->n.key2type == STR) {
00107 dbug (<span class="stringliteral">"key2 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="group__maps.html#ga25">key2str</a>(m));
00108 <span class="keywordflow">if</span> (<a class="code" href="group__maps.html#ga25">key2str</a>(m))
00109 _stp_free(key2str(m));
00110 }
00111 }
00112 <span class="comment"></span>
00113 <span class="comment">/** Deletes the current element.</span>
00114 <span class="comment"> * If no current element (key) for this map is set, this function does nothing.</span>
00115 <span class="comment"> * @param map </span>
00116 <span class="comment"> */</span>
00117
<a name="l00118"></a><a class="code" href="group__maps.html#ga4">00118</a> <span class="keywordtype">void</span> _stp_map_key_del(<a class="code" href="structmap__root.html">MAP</a> map)
00119 {
00120 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *m;
00121
00122 dbug (<span class="stringliteral">"create=%d key=%lx\n"</span>, map->create, (<span class="keywordtype">long</span>)map->key);
00123 <span class="keywordflow">if</span> (map == NULL)
00124 <span class="keywordflow">return</span>;
00125
00126 <span class="keywordflow">if</span> (map->create) {
00127 map->create = 0;
00128 map->key = NULL;
00129 <span class="keywordflow">return</span>;
00130 }
00131
00132 <span class="keywordflow">if</span> (map->key == NULL)
00133 <span class="keywordflow">return</span>;
00134
00135 m = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)map->key;
00136
00137 <span class="comment">/* remove node from old hash list */</span>
00138 hlist_del_init(&m-><a class="code" href="structmap__node.html#o1">hnode</a>);
00139
00140 <span class="comment">/* remove from entry list */</span>
00141 list_del(&m-><a class="code" href="structmap__node.html#o0">lnode</a>);
00142
00143 <span class="comment">/* remove any allocated string storage */</span>
00144 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)map->key);
00145
00146 <span class="keywordflow">if</span> (map->maxnum)
00147 list_add(&m-><a class="code" href="structmap__node.html#o0">lnode</a>, &map->pool);
00148 <span class="keywordflow">else</span>
00149 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(m);
00150
00151 map->key = NULL;
00152 map->num--;
00153 }
00154 <span class="comment"></span>
00155 <span class="comment">/** Get the first element in a map.</span>
00156 <span class="comment"> * @param map </span>
00157 <span class="comment"> * @returns a pointer to the first element.</span>
00158 <span class="comment"> * This is typically used with _stp_map_iter(). See the foreach() macro</span>
00159 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00160 <span class="comment"> * @sa foreach</span>
00161 <span class="comment"> */</span>
00162
<a name="l00163"></a><a class="code" href="group__maps.html#ga5">00163</a> <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *<a class="code" href="group__maps.html#ga5">_stp_map_start</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00164 {
00165 <span class="keywordflow">if</span> (map == NULL)
00166 <span class="keywordflow">return</span> NULL;
00167
00168 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o4">head</a>.next);
00169
00170 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>))
00171 <span class="keywordflow">return</span> NULL;
00172
00173 <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;
00174 }
00175 <span class="comment"></span>
00176 <span class="comment">/** Get the next element in a map.</span>
00177 <span class="comment"> * @param map </span>
00178 <span class="comment"> * @param m a pointer to the current element, returned from _stp_map_start()</span>
00179 <span class="comment"> * or _stp_map_iter().</span>
00180 <span class="comment"> * @returns a pointer to the next element.</span>
00181 <span class="comment"> * This is typically used with _stp_map_start(). See the foreach() macro</span>
00182 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00183 <span class="comment"> * @sa foreach</span>
00184 <span class="comment"> */</span>
00185
<a name="l00186"></a><a class="code" href="group__maps.html#ga6">00186</a> <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *<a class="code" href="group__maps.html#ga6">_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)
00187 {
00188 <span class="keywordflow">if</span> (map == NULL)
00189 <span class="keywordflow">return</span> NULL;
00190
00191 dbug (<span class="stringliteral">"%lx next=%lx prev=%lx map->head.next=%lx\n"</span>, (<span class="keywordtype">long</span>)m,
00192 (<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);
00193
00194 <span class="keywordflow">if</span> (m->lnode.next == &map-><a class="code" href="structmap__root.html#o4">head</a>)
00195 <span class="keywordflow">return</span> NULL;
00196
00197 <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;
00198 }
00199 <span class="comment"></span>
00200 <span class="comment">/** Deletes a map.</span>
00201 <span class="comment"> * Deletes a map, freeing all memory in all elements. Normally done only when the module exits.</span>
00202 <span class="comment"> * @param map</span>
00203 <span class="comment"> */</span>
00204
<a name="l00205"></a><a class="code" href="group__maps.html#ga7">00205</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga7">_stp_map_del</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00206 {
00207 <span class="keywordflow">if</span> (map == NULL)
00208 <span class="keywordflow">return</span>;
00209
00210 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00211 <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;
00212 <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>) {
00213 map_free_strings(map, ptr);
00214 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;
00215 }
00216 }
00217 <a class="code" href="group__alloc.html#ga5">_stp_vfree</a>(map-><a class="code" href="structmap__root.html#o14">membuf</a>);
00218 <a class="code" href="group__alloc.html#ga5">_stp_vfree</a>(map);
00219 }
00220
00221 <span class="comment">/********************** KEY FUNCTIONS *********************/</span>
00222
00223 <span class="comment"></span>
00224 <span class="comment">/** Set the map's key to two longs.</span>
00225 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00226 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00227 <span class="comment"> * call.</span>
00228 <span class="comment"> * @param map</span>
00229 <span class="comment"> * @param key1 first key</span>
00230 <span class="comment"> * @param key2 second key</span>
00231 <span class="comment"> */</span>
00232
<a name="l00233"></a><a class="code" href="group__maps.html#ga8">00233</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga8">_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)
00234 {
00235 <span class="keywordtype">unsigned</span> hv;
00236 <span class="keyword">struct </span>hlist_head *head;
00237 <span class="keyword">struct </span>hlist_node *e;
00238
00239 <span class="keywordflow">if</span> (map == NULL)
00240 <span class="keywordflow">return</span>;
00241
00242 hv = hash_long(key1 ^ key2, HASH_TABLE_BITS);
00243 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00244
00245 dbug (<span class="stringliteral">"hash for %ld,%ld is %d\n"</span>, key1, key2, hv);
00246
00247 hlist_for_each(e, head) {
00248 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00249 (<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));
00250 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>);
00251 <span class="keywordflow">if</span> (key1 == n->key1.val && key2 == n->key2.val) {
00252 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00253 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>);
00254 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00255 <span class="keywordflow">return</span>;
00256 }
00257 }
00258
00259 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00260 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00261 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00262 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00263 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00264 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00265 }
00266 <span class="comment"></span>
00267 <span class="comment">/** Set the map's key to two strings.</span>
00268 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00269 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00270 <span class="comment"> * call.</span>
00271 <span class="comment"> * @param map</span>
00272 <span class="comment"> * @param key1 first key</span>
00273 <span class="comment"> * @param key2 second key</span>
00274 <span class="comment"> */</span>
00275
<a name="l00276"></a><a class="code" href="group__maps.html#ga9">00276</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga9">_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)
00277 {
00278 <span class="keywordtype">unsigned</span> hv;
00279 <span class="keyword">struct </span>hlist_head *head;
00280 <span class="keyword">struct </span>hlist_node *e;
00281
00282 <span class="keywordflow">if</span> (map == NULL)
00283 <span class="keywordflow">return</span>;
00284
00285 <span class="keywordflow">if</span> (key1 == NULL) {
00286 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00287 <span class="keywordflow">return</span>;
00288 }
00289
00290 hv = string_hash(key1, key2);
00291 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00292
00293 dbug (<span class="stringliteral">"hash for %s,%s is %d\n"</span>, key1, key2, hv);
00294
00295 hlist_for_each(e, head) {
00296 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00297 (<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));
00298 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>);
00299 <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
00300 && (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)) {
00301 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00302 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>);
00303 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00304 <span class="keywordflow">return</span>;
00305 }
00306 }
00307
00308 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00309 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00310 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00311 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00312 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00313 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00314 }
00315 <span class="comment"></span>
00316 <span class="comment">/** Set the map's key to a string and a long.</span>
00317 <span class="comment"> * This sets the current element based on a key of a string and a long. If the keys are</span>
00318 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00319 <span class="comment"> * call.</span>
00320 <span class="comment"> * @param map</span>
00321 <span class="comment"> * @param key1 first key</span>
00322 <span class="comment"> * @param key2 second key</span>
00323 <span class="comment"> */</span>
00324
<a name="l00325"></a><a class="code" href="group__maps.html#ga10">00325</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga10">_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)
00326 {
00327 <span class="keywordtype">unsigned</span> hv;
00328 <span class="keyword">struct </span>hlist_head *head;
00329 <span class="keyword">struct </span>hlist_node *e;
00330
00331 <span class="keywordflow">if</span> (map == NULL)
00332 <span class="keywordflow">return</span>;
00333
00334 <span class="keywordflow">if</span> (key1 == NULL) {
00335 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00336 <span class="keywordflow">return</span>;
00337 }
00338
00339 hv = mixed_hash(key1, key2);
00340 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00341
00342 dbug (<span class="stringliteral">"hash for %s,%ld is %d\n"</span>, key1, key2, hv);
00343
00344 hlist_for_each(e, head) {
00345 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00346 (<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));
00347 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>);
00348 <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>) {
00349 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00350 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>);
00351 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00352 <span class="keywordflow">return</span>;
00353 }
00354 }
00355
00356 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00357 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00358 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00359 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00360 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00361 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00362 }
00363 <span class="comment"></span>
00364 <span class="comment">/** Set the map's key to a long and a string.</span>
00365 <span class="comment"> * This sets the current element based on a key of a long and a string. If the keys are</span>
00366 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00367 <span class="comment"> * call.</span>
00368 <span class="comment"> * @param map</span>
00369 <span class="comment"> * @param key1 first key</span>
00370 <span class="comment"> * @param key2 second key</span>
00371 <span class="comment"> */</span>
00372
<a name="l00373"></a><a class="code" href="group__maps.html#ga11">00373</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga11">_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)
00374 {
00375 <span class="keywordtype">unsigned</span> hv;
00376 <span class="keyword">struct </span>hlist_head *head;
00377 <span class="keyword">struct </span>hlist_node *e;
00378
00379 <span class="keywordflow">if</span> (map == NULL)
00380 <span class="keywordflow">return</span>;
00381
00382 hv = mixed_hash(key2, key1);
00383 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00384 dbug (<span class="stringliteral">"hash for %ld,%s is %d\n"</span>, key1, key2, hv);
00385
00386 hlist_for_each(e, head) {
00387 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00388 (<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));
00389 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>);
00390 <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) {
00391 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00392 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>);
00393 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00394 <span class="keywordflow">return</span>;
00395 }
00396 }
00397
00398 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00399 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00400 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00401 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00402 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00403 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00404 }
00405 <span class="comment"></span>
00406 <span class="comment">/** Set the map's key to a string.</span>
00407 <span class="comment"> * This sets the current element based on a string key. If the key is</span>
00408 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00409 <span class="comment"> * call.</span>
00410 <span class="comment"> * @param map</span>
00411 <span class="comment"> * @param key</span>
00412 <span class="comment"> */</span>
00413
<a name="l00414"></a><a class="code" href="group__maps.html#ga12">00414</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga12">_stp_map_key_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *key)
00415 {
00416 <span class="keywordflow">if</span> (map == NULL)
00417 <span class="keywordflow">return</span>;
00418 <a class="code" href="group__maps.html#ga9">_stp_map_key_str_str</a>(map, key, NULL);
00419 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00420 }
00421 <span class="comment"></span>
00422 <span class="comment">/** Set the map's key to a long.</span>
00423 <span class="comment"> * This sets the current element based on a long key. If the key is</span>
00424 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00425 <span class="comment"> * call.</span>
00426 <span class="comment"> * @param map</span>
00427 <span class="comment"> * @param key </span>
00428 <span class="comment"> */</span>
00429
<a name="l00430"></a><a class="code" href="group__maps.html#ga13">00430</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">long</span> key)
00431 {
00432 <span class="keywordflow">if</span> (map == NULL)
00433 <span class="keywordflow">return</span>;
00434 <a class="code" href="group__maps.html#ga8">_stp_map_key_long_long</a>(map, key, 0);
00435 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00436 }
00437
00438 <span class="comment">/********************** SET/GET VALUES *********************/</span>
00439
00440 <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)
00441 {
00442 m->key1type = map-><a class="code" href="structmap__root.html#o8">c_key1type</a>;
00443 m->key2type = map-><a class="code" href="structmap__root.html#o9">c_key2type</a>;
00444 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o8">c_key1type</a>) {
00445 <span class="keywordflow">case</span> STR:
00446 m->key1.str = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a>) + 1);
00447 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>);
00448 <span class="keywordflow">break</span>;
00449 <span class="keywordflow">case</span> LONG:
00450 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>;
00451 <span class="keywordflow">break</span>;
00452 <span class="keywordflow">case</span> NONE:
00453 <span class="comment">/* ERROR */</span>
00454 <span class="keywordflow">break</span>;
00455 }
00456 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o9">c_key2type</a>) {
00457 <span class="keywordflow">case</span> STR:
00458 m->key2.<a class="code" href="unionkey__data.html#o1">str</a> = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a>) + 1);
00459 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>);
00460 <span class="keywordflow">break</span>;
00461 <span class="keywordflow">case</span> LONG:
00462 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>;
00463 <span class="keywordflow">break</span>;
00464 <span class="keywordflow">case</span> NONE:
00465 <span class="keywordflow">break</span>;
00466 }
00467
00468 <span class="comment">/* add node to new hash list */</span>
00469 hlist_add_head(&m->hnode, map-><a class="code" href="structmap__root.html#o10">c_keyhead</a>);
00470
00471 map-><a class="code" href="structmap__root.html#o6">key</a> = m;
00472 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00473 map-><a class="code" href="structmap__root.html#o2">num</a>++;
00474 }
00475
00476 <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)
00477 {
00478 <span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *m;
00479
00480 <span class="keywordflow">if</span> (map == NULL)
00481 return;
00482
00483 if (map->create) {
00484 <span class="keywordflow">if</span> (val == 0)
00485 return;
00486
00487 if (map->maxnum) {
00488 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00489 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00490 <span class="comment">/* ERROR. FIXME */</span>
00491 <span class="keywordflow">return</span>;
00492 }
00493 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00494 hlist_del_init(&m-><a class="code" href="structmap__node__int64.html#o0">n</a>.<a class="code" href="structmap__node.html#o1">hnode</a>);
00495 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00496 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00497 } <span class="keywordflow">else</span> {
00498 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00499 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00500 }
00501 list_move_tail(&m-><a class="code" href="structmap__node__int64.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00502 } <span class="keywordflow">else</span> {
00503 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)
00504 <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structmap__node__int64.html">map_node_int64</a>));
00505 <span class="comment">/* add node to list */</span>
00506 list_add_tail(&m-><a class="code" href="structmap__node__int64.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00507 }
00508
00509 <span class="comment">/* copy the key(s) */</span>
00510 map_copy_keys(map, &m-><a class="code" href="structmap__node__int64.html#o0">n</a>);
00511
00512 <span class="comment">/* set the value */</span>
00513 m-><a class="code" href="structmap__node__int64.html#o1">val</a> = val;
00514 } <span class="keywordflow">else</span> {
00515 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00516 return;
00517
00518 if (val) {
00519 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00520 <span class="keywordflow">if</span> (add)
00521 m->val += val;
00522 else
00523 m->val = val;
00524 } else if (!add) {
00525 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00526 <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00527 }
00528 }
00529 }
00530 <span class="comment"></span>
00531 <span class="comment">/** Set the current element's value to an int64.</span>
00532 <span class="comment"> * This sets the current element's value to an int64. The map must have been created</span>
00533 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00534 <span class="comment"> *</span>
00535 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00536 <span class="comment"> * is set for the map, this function does nothing.</span>
00537 <span class="comment"> * @param map</span>
00538 <span class="comment"> * @param val new value</span>
00539 <span class="comment"> * @sa _stp_map_add_int64</span>
00540 <span class="comment"> */</span>
<a name="l00541"></a><a class="code" href="group__maps.html#ga16">00541</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga16">_stp_map_set_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00542 {
00543 __stp_map_set_int64 (map, val, 0);
00544 }
00545
00546 <span class="comment"></span>
00547 <span class="comment">/** Adds an int64 to the current element's value.</span>
00548 <span class="comment"> * This adds an int64 to the current element's value. The map must have been created</span>
00549 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00550 <span class="comment"> *</span>
00551 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00552 <span class="comment"> * is set for the map, this function does nothing.</span>
00553 <span class="comment"> * @param map</span>
00554 <span class="comment"> * @param val value</span>
00555 <span class="comment"> * @sa _stp_map_set_int64</span>
00556 <span class="comment"> */</span>
00557
<a name="l00558"></a><a class="code" href="group__maps.html#ga17">00558</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga17">_stp_map_add_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00559 {
00560 __stp_map_set_int64 (map, val, 1);
00561 }
00562 <span class="comment"></span>
00563 <span class="comment">/** Gets the current element's value.</span>
00564 <span class="comment"> * @param map</span>
00565 <span class="comment"> * @returns The value. If the current element is not set or doesn't exist, returns 0.</span>
00566 <span class="comment"> */</span>
00567
<a name="l00568"></a><a class="code" href="group__maps.html#ga18">00568</a> int64_t <a class="code" href="group__maps.html#ga18">_stp_map_get_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00569 {
00570 <span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *m;
00571 <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)
00572 <span class="keywordflow">return</span> 0;
00573 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00574 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00575 <span class="keywordflow">return</span> m-><a class="code" href="structmap__node__int64.html#o1">val</a>;
00576 }
00577 <span class="comment"></span>
00578 <span class="comment">/** Set the current element's value to a string.</span>
00579 <span class="comment"> * This sets the current element's value to an string. The map must have been created</span>
00580 <span class="comment"> * to hold int64s using <i>_stp_map_new(xxx, STRING)</i></span>
00581 <span class="comment"> *</span>
00582 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00583 <span class="comment"> * is set for the map, this function does nothing.</span>
00584 <span class="comment"> * @param map</span>
00585 <span class="comment"> * @param val new string</span>
00586 <span class="comment"> */</span>
00587
<a name="l00588"></a><a class="code" href="group__maps.html#ga19">00588</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *val)
00589 {
00590 <span class="keyword">struct </span>map_node_str *m;
00591
00592 <span class="keywordflow">if</span> (map == NULL)
00593 <span class="keywordflow">return</span>;
00594
00595 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00596 <span class="keywordflow">if</span> (val == NULL)
00597 <span class="keywordflow">return</span>;
00598
00599 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00600 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00601 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00602 <span class="comment">/* ERROR. FIXME */</span>
00603 <span class="keywordflow">return</span>;
00604 }
00605 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00606 hlist_del_init(&m-><a class="code" href="structmap__node__str.html#o0">n</a>.<a class="code" href="structmap__node.html#o1">hnode</a>);
00607 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00608 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00609 } <span class="keywordflow">else</span> {
00610 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00611 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00612 }
00613 list_move_tail(&m-><a class="code" href="structmap__node__str.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00614 } <span class="keywordflow">else</span> {
00615 m = (<span class="keyword">struct </span>map_node_str *)
00616 <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_str));
00617 <span class="comment">/* add node to list */</span>
00618 list_add_tail(&m-><a class="code" href="structmap__node__str.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00619 }
00620
00621 <span class="comment">/* copy the key(s) */</span>
00622 map_copy_keys(map, &m-><a class="code" href="structmap__node__str.html#o0">n</a>);
00623
00624 <span class="comment">/* set the value */</span>
00625 m-><a class="code" href="structmap__node__str.html#o1">str</a> = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(val) + 1);
00626 strcpy(m-><a class="code" href="structmap__node__str.html#o1">str</a>, val);
00627 } <span class="keywordflow">else</span> {
00628 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00629 <span class="keywordflow">return</span>;
00630
00631 <span class="keywordflow">if</span> (val) {
00632 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00633 <span class="keywordflow">if</span> (m-><a class="code" href="structmap__node__str.html#o1">str</a>)
00634 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(m-><a class="code" href="structmap__node__str.html#o1">str</a>);
00635 m-><a class="code" href="structmap__node__str.html#o1">str</a> = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(val) + 1);
00636 strcpy(m-><a class="code" href="structmap__node__str.html#o1">str</a>, val);
00637 } <span class="keywordflow">else</span> {
00638 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00639 <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00640 }
00641 }
00642 }
00643 <span class="comment"></span>
00644 <span class="comment">/** Gets the current element's value.</span>
00645 <span class="comment"> * @param map</span>
00646 <span class="comment"> * @returns A string pointer. If the current element is not set or doesn't exist, returns NULL.</span>
00647 <span class="comment"> */</span>
00648
<a name="l00649"></a><a class="code" href="group__maps.html#ga20">00649</a> <span class="keywordtype">char</span> *<a class="code" href="group__maps.html#ga20">_stp_map_get_str</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00650 {
00651 <span class="keyword">struct </span>map_node_str *m;
00652 <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)
00653 <span class="keywordflow">return</span> NULL;
00654 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00655 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00656 <span class="keywordflow">return</span> m-><a class="code" href="structmap__node__str.html#o1">str</a>;
00657 }
00658 <span class="comment"></span>
00659 <span class="comment">/** Set the current element's value to a stat.</span>
00660 <span class="comment"> * This sets the current element's value to an stat struct. The map must have been created</span>
00661 <span class="comment"> * to hold stats using <i>_stp_map_new(xxx, STAT)</i>. This function would only be used</span>
00662 <span class="comment"> * if we wanted to set stats to something other than the normal initial values (count = 0,</span>
00663 <span class="comment"> * sum = 0, etc). It may be deleted if it doesn't turn out to be useful.</span>
00664 <span class="comment"> * @sa _stp_map_stat_add </span>
00665 <span class="comment"> *</span>
00666 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00667 <span class="comment"> * is set for the map, this function does nothing.</span>
00668 <span class="comment"> * @param map</span>
00669 <span class="comment"> * @param stats pointer to stats struct.</span>
00670 <span class="comment"> * @todo Histograms don't work yet.</span>
00671 <span class="comment"> */</span>
00672
<a name="l00673"></a><a class="code" href="group__maps.html#ga21">00673</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga21">_stp_map_set_stat</a>(<a class="code" href="structmap__root.html">MAP</a> map, <a class="code" href="structstat.html">stat</a> * stats)
00674 {
00675 <span class="keyword">struct </span>map_node_stat *m;
00676
00677 <span class="keywordflow">if</span> (map == NULL)
00678 <span class="keywordflow">return</span>;
00679 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>);
00680
00681 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00682 <span class="keywordflow">if</span> (stats == NULL)
00683 <span class="keywordflow">return</span>;
00684
00685 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00686 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00687 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00688 <span class="comment">/* ERROR. FIXME */</span>
00689 <span class="keywordflow">return</span>;
00690 }
00691 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00692 hlist_del_init(&m-><a class="code" href="structmap__node__stat.html#o0">n</a>.<a class="code" href="structmap__node.html#o1">hnode</a>);
00693 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00694 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00695 } <span class="keywordflow">else</span> {
00696 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00697 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00698 }
00699 list_move_tail(&m-><a class="code" href="structmap__node__stat.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00700 } <span class="keywordflow">else</span> {
00701 m = (<span class="keyword">struct </span>map_node_stat *)
00702 <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_stat));
00703 <span class="comment">/* add node to list */</span>
00704 list_add_tail(&m-><a class="code" href="structmap__node__stat.html#o0">n</a>.<a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o4">head</a>);
00705 }
00706
00707 <span class="comment">/* copy the key(s) */</span>
00708 map_copy_keys(map, &m-><a class="code" href="structmap__node__stat.html#o0">n</a>);
00709
00710 <span class="comment">/* set the value */</span>
00711 memcpy(&m-><a class="code" href="structmap__node__stat.html#o1">stats</a>, stats, <span class="keyword">sizeof</span>(<a class="code" href="structstat.html">stat</a>));
00712 } <span class="keywordflow">else</span> {
00713 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00714 <span class="keywordflow">return</span>;
00715
00716 <span class="keywordflow">if</span> (stats) {
00717 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00718 memcpy(&m-><a class="code" href="structmap__node__stat.html#o1">stats</a>, stats, <span class="keyword">sizeof</span>(<a class="code" href="structstat.html">stat</a>));
00719 } <span class="keywordflow">else</span> {
00720 <span class="comment">/* setting value to NULL is the same as deleting */</span>
00721 <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00722 }
00723 }
00724 }
00725 <span class="comment"></span>
00726 <span class="comment">/** Gets the current element's value.</span>
00727 <span class="comment"> * @param map</span>
00728 <span class="comment"> * @returns A pointer to the stats struct. If the current element is not set </span>
00729 <span class="comment"> * or doesn't exist, returns NULL.</span>
00730 <span class="comment"> */</span>
00731
<a name="l00732"></a><a class="code" href="group__maps.html#ga22">00732</a> <a class="code" href="structstat.html">stat</a> *<a class="code" href="group__maps.html#ga22">_stp_map_get_stat</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00733 {
00734 <span class="keyword">struct </span>map_node_stat *m;
00735 <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)
00736 <span class="keywordflow">return</span> NULL;
00737 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00738 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00739 <span class="keywordflow">return</span> &m-><a class="code" href="structmap__node__stat.html#o1">stats</a>;
00740 }
00741 <span class="comment"></span>
00742 <span class="comment">/** Add to the current element's statistics.</span>
00743 <span class="comment"> * Increments the statistics counter by one and the sum by <i>val</i>.</span>
00744 <span class="comment"> * Adjusts minimum, maximum, and histogram.</span>
00745 <span class="comment"> *</span>
00746 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00747 <span class="comment"> * is set for the map, this function does nothing.</span>
00748 <span class="comment"> * @param map</span>
00749 <span class="comment"> * @param val value to add to the statistics</span>
00750 <span class="comment"> * @todo Histograms don't work yet.</span>
00751 <span class="comment"> */</span>
00752
<a name="l00753"></a><a class="code" href="group__maps.html#ga23">00753</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga23">_stp_map_stat_add</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00754 {
00755 <span class="keyword">struct </span>map_node_stat *m;
00756 <span class="keywordflow">if</span> (map == NULL)
00757 <span class="keywordflow">return</span>;
00758
00759 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00760 <a class="code" href="structstat.html">stat</a> st = { 1, val, val, val };
00761 <span class="comment">/* histogram */</span>
00762 <a class="code" href="group__maps.html#ga21">_stp_map_set_stat</a>(map, &st);
00763 <span class="keywordflow">return</span>;
00764 }
00765
00766 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00767 <span class="keywordflow">return</span>;
00768
00769 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>);
00770 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00771 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o0">count</a>++;
00772 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o1">sum</a> += val;
00773 <span class="keywordflow">if</span> (val > m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o3">max</a>)
00774 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o3">max</a> = val;
00775 <span class="keywordflow">if</span> (val < m->stats.min)
00776 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o2">min</a> = val;
00777 <span class="comment">/* histogram */</span>
00778 }
00779 <span class="comment"></span>
00780 <span class="comment">/** @} */</span>
00781
00782 <span class="comment">/********************** List Functions *********************/</span>
00783 <span class="comment"></span>
00784 <span class="comment">/** @addtogroup lists</span>
00785 <span class="comment"> * Lists are special cases of maps.</span>
00786 <span class="comment"> * @b Example:</span>
00787 <span class="comment"> * @include list.c</span>
00788 <span class="comment"> * @{ */</span>
00789 <span class="comment"></span>
00790 <span class="comment">/** Create a new list.</span>
00791 <span class="comment"> * A list is a map that internally has an incrementing long key for each member.</span>
00792 <span class="comment"> * Lists do not wrap if elements are added to exceed their maximum size.</span>
00793 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00794 <span class="comment"> * be preallocated. If max_entries is 0, there will be no maximum and entries</span>
00795 <span class="comment"> * will be allocated dynamically.</span>
00796 <span class="comment"> * @param type Type of values stored in this list. </span>
00797 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00798 <span class="comment"> * @sa foreach</span>
00799 <span class="comment"> */</span>
00800
<a name="l00801"></a><a class="code" href="group__lists.html#ga0">00801</a> <a class="code" href="structmap__root.html">MAP</a> <a class="code" href="group__lists.html#ga0">_stp_list_new</a>(<span class="keywordtype">unsigned</span> max_entries, <span class="keyword">enum</span> valtype type)
00802 {
00803 <a class="code" href="structmap__root.html">MAP</a> map = <a class="code" href="group__maps.html#ga2">_stp_map_new</a> (max_entries, type);
00804 map-><a class="code" href="structmap__root.html#o3">no_wrap</a> = 1;
00805 <span class="keywordflow">return</span> map;
00806 }
00807 <span class="comment"></span>
00808 <span class="comment">/** Clears a list.</span>
00809 <span class="comment"> * All elements in the list are deleted.</span>
00810 <span class="comment"> * @param map </span>
00811 <span class="comment"> */</span>
00812
<a name="l00813"></a><a class="code" href="group__lists.html#ga1">00813</a> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga1">_stp_list_clear</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00814 {
00815 <span class="keywordflow">if</span> (map == NULL)
00816 <span class="keywordflow">return</span>;
00817
00818 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00819 <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;
00820
00821 <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>) {
00822 <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;
00823
00824 <span class="comment">/* remove node from old hash list */</span>
00825 hlist_del_init(&ptr-><a class="code" href="structmap__node.html#o1">hnode</a>);
00826
00827 <span class="comment">/* remove from entry list */</span>
00828 list_del(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>);
00829
00830 <span class="comment">/* remove any allocated string storage */</span>
00831 map_free_strings(map, ptr);
00832
00833 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>)
00834 list_add(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o5">pool</a>);
00835 <span class="keywordflow">else</span>
00836 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(ptr);
00837
00838 map-><a class="code" href="structmap__root.html#o2">num</a>--;
00839 ptr = next;
00840 }
00841 }
00842
00843 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o2">num</a> != 0) {
00844 <a class="code" href="group__io.html#ga0">dlog</a> (<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>);
00845 }
00846 }
00847 <span class="comment"></span>
00848 <span class="comment">/** Adds a string to a list.</span>
00849 <span class="comment"> * @param map</span>
00850 <span class="comment"> * @param str</span>
00851 <span class="comment"> */</span>
00852
<a name="l00853"></a><a class="code" href="group__lists.html#ga2">00853</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga2">_stp_list_add_str</a>(<a class="code" href="structmap__root.html">MAP</a> map, <span class="keywordtype">char</span> *str)
00854 {
00855 <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(map, map-><a class="code" href="structmap__root.html#o2">num</a>);
00856 <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a>(map, str);
00857 }
00858 <span class="comment"></span>
00859 <span class="comment">/** Adds an int64 to a list.</span>
00860 <span class="comment"> * @param map</span>
00861 <span class="comment"> * @param val</span>
00862 <span class="comment"> */</span>
00863
<a name="l00864"></a><a class="code" href="group__lists.html#ga3">00864</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga3">_stp_list_add_int64</a>(<a class="code" href="structmap__root.html">MAP</a> map, int64_t val)
00865 {
00866 <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(map, map-><a class="code" href="structmap__root.html#o2">num</a>);
00867 <a class="code" href="group__maps.html#ga16">_stp_map_set_int64</a>(map, val);
00868 }
00869 <span class="comment"></span>
00870 <span class="comment">/** Get the number of elements in a list.</span>
00871 <span class="comment"> * @param map</span>
00872 <span class="comment"> * @returns The number of elements in a list.</span>
00873 <span class="comment"> */</span>
00874
<a name="l00875"></a><a class="code" href="group__lists.html#ga4">00875</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="group__lists.html#ga4">_stp_list_size</a>(<a class="code" href="structmap__root.html">MAP</a> map)
00876 {
00877 <span class="keywordflow">return</span> map-><a class="code" href="structmap__root.html#o2">num</a>;
00878 }<span class="comment"></span>
00879 <span class="comment">/** @} */</span>
00880 <span class="preprocessor">#endif </span><span class="comment">/* _MAP_C_ */</span>
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