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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 <span class="keyword">static</span> <span class="keywordtype">int</span> map_sizes[] = {
00007 <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a>),
00008 sizeof(struct map_node_stat),
00009 sizeof(struct map_node_str),
00010 0
00011 };
00012
00013 <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)
00014 {
00015 <span class="keywordtype">int</span> hash = 0, count = 0;
00016 <span class="keywordtype">char</span> *v1 = (<span class="keywordtype">char</span> *)key1;
00017 <span class="keywordtype">char</span> *v2 = (<span class="keywordtype">char</span> *)key2;
00018 <span class="keywordflow">while</span> (*v1 && count++ < 5) {
00019 hash += *v1++;
00020 }
00021 <span class="keywordflow">while</span> (v2 && *v2 && count++ < 5) {
00022 hash += *v2++;
00023 }
00024 <span class="keywordflow">return</span> hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)hash, HASH_TABLE_BITS);
00025 }
00026
00027 <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)
00028 {
00029 <span class="keywordtype">int</span> hash = 0, count = 0;
00030 <span class="keywordtype">char</span> *v = (<span class="keywordtype">char</span> *)key1;
00031 <span class="keywordflow">while</span> (v && *v && count++ < 5)
00032 hash += *v++;
00033 return hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)(hash ^ key2), HASH_TABLE_BITS);
00034 }
00035 <span class="comment"></span>
00036 <span class="comment">/** Create a new map.</span>
00037 <span class="comment"> * Maps must be created at module initialization time.</span>
00038 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00039 <span class="comment"> * be preallocated. If more entries are required, the oldest ones will be deleted. This makes</span>
00040 <span class="comment"> * it effectively a circular buffer. If max_entries is 0, there will be no maximum and entries</span>
00041 <span class="comment"> * will be allocated dynamically.</span>
00042 <span class="comment"> * @param type Type of values stored in this map. </span>
00043 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00044 <span class="comment"> */</span>
00045
<a name="l00046"></a><a class="code" href="map_8c.html#a3">00046</a> <a class="code" href="structmap__root.html">MAP</a> _stp_map_new(<span class="keywordtype">unsigned</span> max_entries, enum valtype type)
00047 {
00048 size_t size;
00049 <a class="code" href="structmap__root.html">MAP</a> m = (<a class="code" href="structmap__root.html">MAP</a>) <a class="code" href="alloc_8h.html#a5">_stp_valloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structmap__root.html">map_root</a>));
00050 <span class="keywordflow">if</span> (m == NULL)
00051 <span class="keywordflow">return</span> NULL;
00052
00053 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o4">head</a>);
00054
00055 m-><a class="code" href="structmap__root.html#o1">maxnum</a> = max_entries;
00056 m-><a class="code" href="structmap__root.html#o0">type</a> = type;
00057 <span class="keywordflow">if</span> (type >= END) {
00058 dbug (<span class="stringliteral">"map_new: unknown type %d\n"</span>, type);
00059 <span class="keywordflow">return</span> NULL;
00060 }
00061
00062 <span class="keywordflow">if</span> (max_entries) {
00063 <span class="keywordtype">void</span> *tmp;
00064 <span class="keywordtype">int</span> i;
00065 <span class="keyword">struct </span>list_head *e;
00066
00067 INIT_LIST_HEAD(&m-><a class="code" href="structmap__root.html#o5">pool</a>);
00068 size = map_sizes[type];
00069 tmp = <a class="code" href="alloc_8h.html#a5">_stp_valloc</a>(max_entries * size);
00070
00071 <span class="keywordflow">for</span> (i = max_entries - 1; i >= 0; i--) {
00072 e = i * size + tmp;
00073 dbug (<span class="stringliteral">"e=%lx\n"</span>, (<span class="keywordtype">long</span>)e);
00074 list_add(e, &m-><a class="code" href="structmap__root.html#o5">pool</a>);
00075 }
00076 m-><a class="code" href="structmap__root.html#o14">membuf</a> = tmp;
00077 }
00078 <span class="keywordflow">return</span> m;
00079 }
00080
00081 <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)
00082 {
00083 <span class="keyword">struct </span>map_node_str *m = (<span class="keyword">struct </span>map_node_str *)n;
00084 dbug (<span class="stringliteral">"n = %lx\n"</span>, (<span class="keywordtype">long</span>)n);
00085 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o0">type</a> == STRING) {
00086 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>);
00087 <span class="keywordflow">if</span> (m-><a class="code" href="structmap__node__str.html#o1">str</a>)
00088 _stp_free(m->str);
00089 }
00090 if (m->n.key1type == STR) {
00091 dbug (<span class="stringliteral">"key1 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="map_8h.html#a0">key1str</a>(m));
00092 <span class="keywordflow">if</span> (<a class="code" href="map_8h.html#a0">key1str</a>(m))
00093 _stp_free(key1str(m));
00094 }
00095 if (m->n.key2type == STR) {
00096 dbug (<span class="stringliteral">"key2 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="map_8h.html#a1">key2str</a>(m));
00097 <span class="keywordflow">if</span> (<a class="code" href="map_8h.html#a1">key2str</a>(m))
00098 _stp_free(key2str(m));
00099 }
00100 }
00101 <span class="comment"></span>
00102 <span class="comment">/** Deletes the current element.</span>
00103 <span class="comment"> * If no current element (key) for this map is set, this function does nothing.</span>
00104 <span class="comment"> * @param map </span>
00105 <span class="comment"> */</span>
00106
<a name="l00107"></a><a class="code" href="map_8c.html#a5">00107</a> <span class="keywordtype">void</span> _stp_map_key_del(<a class="code" href="structmap__root.html">MAP</a> map)
00108 {
00109 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *m;
00110
00111 dbug (<span class="stringliteral">"create=%d key=%lx\n"</span>, map->create, (<span class="keywordtype">long</span>)map->key);
00112 <span class="keywordflow">if</span> (map == NULL)
00113 <span class="keywordflow">return</span>;
00114
00115 <span class="keywordflow">if</span> (map->create) {
00116 map->create = 0;
00117 map->key = NULL;
00118 <span class="keywordflow">return</span>;
00119 }
00120
00121 <span class="keywordflow">if</span> (map->key == NULL)
00122 <span class="keywordflow">return</span>;
00123
00124 m = (<span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *)map->key;
00125
00126 <span class="comment">/* remove node from old hash list */</span>
00127 hlist_del_init(&m-><a class="code" href="structmap__node.html#o1">hnode</a>);
00128
00129 <span class="comment">/* remove from entry list */</span>
00130 list_del(&m-><a class="code" href="structmap__node.html#o0">lnode</a>);
00131
00132 <span class="comment">/* remove any allocated string storage */</span>
00133 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)map->key);
00134
00135 <span class="keywordflow">if</span> (map->maxnum)
00136 list_add(&m-><a class="code" href="structmap__node.html#o0">lnode</a>, &map->pool);
00137 <span class="keywordflow">else</span>
00138 <a class="code" href="alloc_8h.html#a6">_stp_free</a>(m);
00139
00140 map->key = NULL;
00141 map->num--;
00142 }
00143 <span class="comment"></span>
00144 <span class="comment">/** Get the first element in a map.</span>
00145 <span class="comment"> * @param map </span>
00146 <span class="comment"> * @returns a pointer to the first element.</span>
00147 <span class="comment"> * This is typically used with _stp_map_iter(). See the foreach() macro</span>
00148 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00149 <span class="comment"> * @sa foreach</span>
00150 <span class="comment"> */</span>
00151
<a name="l00152"></a><a class="code" href="map_8c.html#a6">00152</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)
00153 {
00154 <span class="keywordflow">if</span> (map == NULL)
00155 <span class="keywordflow">return</span> NULL;
00156
00157 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o4">head</a>.next);
00158
00159 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>))
00160 <span class="keywordflow">return</span> NULL;
00161
00162 <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;
00163 }
00164 <span class="comment"></span>
00165 <span class="comment">/** Get the next element in a map.</span>
00166 <span class="comment"> * @param map </span>
00167 <span class="comment"> * @param m a pointer to the current element, returned from _stp_map_start()</span>
00168 <span class="comment"> * or _stp_map_iter().</span>
00169 <span class="comment"> * @returns a pointer to the next element.</span>
00170 <span class="comment"> * This is typically used with _stp_map_start(). See the foreach() macro</span>
00171 <span class="comment"> * for typical usage. It probably does what you want anyway.</span>
00172 <span class="comment"> * @sa foreach</span>
00173 <span class="comment"> */</span>
00174
<a name="l00175"></a><a class="code" href="map_8c.html#a7">00175</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)
00176 {
00177 <span class="keywordflow">if</span> (map == NULL)
00178 <span class="keywordflow">return</span> NULL;
00179
00180 dbug (<span class="stringliteral">"%lx next=%lx prev=%lx map->head.next=%lx\n"</span>, (<span class="keywordtype">long</span>)m,
00181 (<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);
00182
00183 <span class="keywordflow">if</span> (m->lnode.next == &map-><a class="code" href="structmap__root.html#o4">head</a>)
00184 <span class="keywordflow">return</span> NULL;
00185
00186 <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;
00187 }
00188 <span class="comment"></span>
00189 <span class="comment">/** Deletes a map.</span>
00190 <span class="comment"> * Deletes a map, freeing all memory in all elements. Normally done only when the module exits.</span>
00191 <span class="comment"> * @param map</span>
00192 <span class="comment"> */</span>
00193
<a name="l00194"></a><a class="code" href="map_8c.html#a8">00194</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)
00195 {
00196 <span class="keywordflow">if</span> (map == NULL)
00197 <span class="keywordflow">return</span>;
00198
00199 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00200 <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;
00201 <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>) {
00202 map_free_strings(map, ptr);
00203 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;
00204 }
00205 }
00206 <a class="code" href="alloc_8h.html#a7">_stp_vfree</a>(map-><a class="code" href="structmap__root.html#o14">membuf</a>);
00207 <a class="code" href="alloc_8h.html#a7">_stp_vfree</a>(map);
00208 }
00209
00210 <span class="comment">/********************** KEY FUNCTIONS *********************/</span>
00211
00212 <span class="comment"></span>
00213 <span class="comment">/** Set the map's key to two longs.</span>
00214 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00215 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00216 <span class="comment"> * call.</span>
00217 <span class="comment"> * @param map</span>
00218 <span class="comment"> * @param key1 first key</span>
00219 <span class="comment"> * @param key2 second key</span>
00220 <span class="comment"> */</span>
00221
<a name="l00222"></a><a class="code" href="map_8c.html#a9">00222</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)
00223 {
00224 <span class="keywordtype">unsigned</span> hv;
00225 <span class="keyword">struct </span>hlist_head *head;
00226 <span class="keyword">struct </span>hlist_node *e;
00227
00228 <span class="keywordflow">if</span> (map == NULL)
00229 <span class="keywordflow">return</span>;
00230
00231 hv = hash_long(key1 ^ key2, HASH_TABLE_BITS);
00232 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00233
00234 dbug (<span class="stringliteral">"hash for %ld,%ld is %d\n"</span>, key1, key2, hv);
00235
00236 hlist_for_each(e, head) {
00237 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00238 (<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));
00239 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>);
00240 <span class="keywordflow">if</span> (key1 == n->key1.val && key2 == n->key2.val) {
00241 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00242 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>);
00243 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00244 <span class="keywordflow">return</span>;
00245 }
00246 }
00247
00248 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00249 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00250 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00251 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00252 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00253 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00254 }
00255 <span class="comment"></span>
00256 <span class="comment">/** Set the map's key to two strings.</span>
00257 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00258 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00259 <span class="comment"> * call.</span>
00260 <span class="comment"> * @param map</span>
00261 <span class="comment"> * @param key1 first key</span>
00262 <span class="comment"> * @param key2 second key</span>
00263 <span class="comment"> */</span>
00264
<a name="l00265"></a><a class="code" href="map_8c.html#a10">00265</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)
00266 {
00267 <span class="keywordtype">unsigned</span> hv;
00268 <span class="keyword">struct </span>hlist_head *head;
00269 <span class="keyword">struct </span>hlist_node *e;
00270
00271 <span class="keywordflow">if</span> (map == NULL)
00272 <span class="keywordflow">return</span>;
00273
00274 <span class="keywordflow">if</span> (key1 == NULL) {
00275 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00276 <span class="keywordflow">return</span>;
00277 }
00278
00279 hv = string_hash(key1, key2);
00280 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00281
00282 dbug (<span class="stringliteral">"hash for %s,%s is %d\n"</span>, key1, key2, hv);
00283
00284 hlist_for_each(e, head) {
00285 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00286 (<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));
00287 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>);
00288 <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
00289 && (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)) {
00290 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00291 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>);
00292 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00293 <span class="keywordflow">return</span>;
00294 }
00295 }
00296
00297 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00298 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00299 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00300 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00301 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00302 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00303 }
00304 <span class="comment"></span>
00305 <span class="comment">/** Set the map's key to a string and a long.</span>
00306 <span class="comment"> * This sets the current element based on a key of a string and a long. If the keys are</span>
00307 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00308 <span class="comment"> * call.</span>
00309 <span class="comment"> * @param map</span>
00310 <span class="comment"> * @param key1 first key</span>
00311 <span class="comment"> * @param key2 second key</span>
00312 <span class="comment"> */</span>
00313
<a name="l00314"></a><a class="code" href="map_8c.html#a11">00314</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)
00315 {
00316 <span class="keywordtype">unsigned</span> hv;
00317 <span class="keyword">struct </span>hlist_head *head;
00318 <span class="keyword">struct </span>hlist_node *e;
00319
00320 <span class="keywordflow">if</span> (map == NULL)
00321 <span class="keywordflow">return</span>;
00322
00323 <span class="keywordflow">if</span> (key1 == NULL) {
00324 map-><a class="code" href="structmap__root.html#o6">key</a> = NULL;
00325 <span class="keywordflow">return</span>;
00326 }
00327
00328 hv = mixed_hash(key1, key2);
00329 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00330
00331 dbug (<span class="stringliteral">"hash for %s,%ld is %d\n"</span>, key1, key2, hv);
00332
00333 hlist_for_each(e, head) {
00334 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00335 (<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));
00336 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>);
00337 <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>) {
00338 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00339 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>);
00340 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00341 <span class="keywordflow">return</span>;
00342 }
00343 }
00344
00345 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key1;
00346 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key2;
00347 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = STR;
00348 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = LONG;
00349 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00350 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00351 }
00352 <span class="comment"></span>
00353 <span class="comment">/** Set the map's key to a long and a string.</span>
00354 <span class="comment"> * This sets the current element based on a key of a long and a string. If the keys are</span>
00355 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00356 <span class="comment"> * call.</span>
00357 <span class="comment"> * @param map</span>
00358 <span class="comment"> * @param key1 first key</span>
00359 <span class="comment"> * @param key2 second key</span>
00360 <span class="comment"> */</span>
00361
<a name="l00362"></a><a class="code" href="map_8c.html#a12">00362</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)
00363 {
00364 <span class="keywordtype">unsigned</span> hv;
00365 <span class="keyword">struct </span>hlist_head *head;
00366 <span class="keyword">struct </span>hlist_node *e;
00367
00368 <span class="keywordflow">if</span> (map == NULL)
00369 <span class="keywordflow">return</span>;
00370
00371 hv = mixed_hash(key2, key1);
00372 head = &map-><a class="code" href="structmap__root.html#o13">hashes</a>[hv];
00373 dbug (<span class="stringliteral">"hash for %ld,%s is %d\n"</span>, key1, key2, hv);
00374
00375 hlist_for_each(e, head) {
00376 <span class="keyword">struct </span><a class="code" href="structmap__node.html">map_node</a> *n =
00377 (<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));
00378 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>);
00379 <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) {
00380 map-><a class="code" href="structmap__root.html#o6">key</a> = n;
00381 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>);
00382 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00383 <span class="keywordflow">return</span>;
00384 }
00385 }
00386
00387 map-><a class="code" href="structmap__root.html#o11">c_key1</a>.<a class="code" href="unionkey__data.html#o0">val</a> = key1;
00388 map-><a class="code" href="structmap__root.html#o12">c_key2</a>.<a class="code" href="unionkey__data.html#o1">str</a> = key2;
00389 map-><a class="code" href="structmap__root.html#o8">c_key1type</a> = LONG;
00390 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = STR;
00391 map-><a class="code" href="structmap__root.html#o10">c_keyhead</a> = head;
00392 map-><a class="code" href="structmap__root.html#o7">create</a> = 1;
00393 }
00394 <span class="comment"></span>
00395 <span class="comment">/** Set the map's key to a string.</span>
00396 <span class="comment"> * This sets the current element based on a string key. If the key is</span>
00397 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00398 <span class="comment"> * call.</span>
00399 <span class="comment"> * @param map</span>
00400 <span class="comment"> * @param key</span>
00401 <span class="comment"> */</span>
00402
<a name="l00403"></a><a class="code" href="map_8c.html#a13">00403</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)
00404 {
00405 <span class="keywordflow">if</span> (map == NULL)
00406 <span class="keywordflow">return</span>;
00407 <a class="code" href="map_8c.html#a10">_stp_map_key_str_str</a>(map, key, NULL);
00408 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00409 }
00410 <span class="comment"></span>
00411 <span class="comment">/** Set the map's key to a long.</span>
00412 <span class="comment"> * This sets the current element based on a long key. If the key is</span>
00413 <span class="comment"> * not found, a new element will not be created until a <i>_stp_map_set_xxx</i></span>
00414 <span class="comment"> * call.</span>
00415 <span class="comment"> * @param map</span>
00416 <span class="comment"> * @param key </span>
00417 <span class="comment"> */</span>
00418
<a name="l00419"></a><a class="code" href="map_8c.html#a14">00419</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)
00420 {
00421 <span class="keywordflow">if</span> (map == NULL)
00422 <span class="keywordflow">return</span>;
00423 <a class="code" href="map_8c.html#a9">_stp_map_key_long_long</a>(map, key, 0);
00424 map-><a class="code" href="structmap__root.html#o9">c_key2type</a> = NONE;
00425 }
00426
00427 <span class="comment">/********************** SET/GET VALUES *********************/</span>
00428
00429 <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)
00430 {
00431 m->key1type = map-><a class="code" href="structmap__root.html#o8">c_key1type</a>;
00432 m->key2type = map-><a class="code" href="structmap__root.html#o9">c_key2type</a>;
00433 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o8">c_key1type</a>) {
00434 <span class="keywordflow">case</span> STR:
00435 m->key1.str = <a class="code" href="alloc_8h.html#a3">_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);
00436 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>);
00437 <span class="keywordflow">break</span>;
00438 <span class="keywordflow">case</span> LONG:
00439 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>;
00440 <span class="keywordflow">break</span>;
00441 <span class="keywordflow">case</span> NONE:
00442 <span class="comment">/* ERROR */</span>
00443 <span class="keywordflow">break</span>;
00444 }
00445 <span class="keywordflow">switch</span> (map-><a class="code" href="structmap__root.html#o9">c_key2type</a>) {
00446 <span class="keywordflow">case</span> STR:
00447 m->key2.<a class="code" href="unionkey__data.html#o1">str</a> = <a class="code" href="alloc_8h.html#a3">_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);
00448 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>);
00449 <span class="keywordflow">break</span>;
00450 <span class="keywordflow">case</span> LONG:
00451 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>;
00452 <span class="keywordflow">break</span>;
00453 <span class="keywordflow">case</span> NONE:
00454 <span class="keywordflow">break</span>;
00455 }
00456
00457 <span class="comment">/* add node to new hash list */</span>
00458 hlist_add_head(&m->hnode, map-><a class="code" href="structmap__root.html#o10">c_keyhead</a>);
00459
00460 map-><a class="code" href="structmap__root.html#o6">key</a> = m;
00461 map-><a class="code" href="structmap__root.html#o7">create</a> = 0;
00462 map-><a class="code" href="structmap__root.html#o2">num</a>++;
00463 }
00464
00465 <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)
00466 {
00467 <span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *m;
00468
00469 <span class="keywordflow">if</span> (map == NULL)
00470 return;
00471
00472 if (map->create) {
00473 <span class="keywordflow">if</span> (val == 0)
00474 return;
00475
00476 if (map->maxnum) {
00477 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00478 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00479 <span class="comment">/* ERROR. FIXME */</span>
00480 <span class="keywordflow">return</span>;
00481 }
00482 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;
00483 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>);
00484 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00485 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00486 } <span class="keywordflow">else</span> {
00487 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;
00488 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00489 }
00490 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>);
00491 } <span class="keywordflow">else</span> {
00492 m = (<span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *)
00493 <a class="code" href="alloc_8h.html#a4">_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>));
00494 <span class="comment">/* add node to list */</span>
00495 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>);
00496 }
00497
00498 <span class="comment">/* copy the key(s) */</span>
00499 map_copy_keys(map, &m-><a class="code" href="structmap__node__int64.html#o0">n</a>);
00500
00501 <span class="comment">/* set the value */</span>
00502 m-><a class="code" href="structmap__node__int64.html#o1">val</a> = val;
00503 } <span class="keywordflow">else</span> {
00504 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00505 return;
00506
00507 if (val) {
00508 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>;
00509 <span class="keywordflow">if</span> (add)
00510 m->val += val;
00511 else
00512 m->val = val;
00513 } else if (!add) {
00514 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00515 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00516 }
00517 }
00518 }
00519 <span class="comment"></span>
00520 <span class="comment">/** Set the current element's value to an int64.</span>
00521 <span class="comment"> * This sets the current element's value to an int64. The map must have been created</span>
00522 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00523 <span class="comment"> *</span>
00524 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00525 <span class="comment"> * is set for the map, this function does nothing.</span>
00526 <span class="comment"> * @param map</span>
00527 <span class="comment"> * @param val new value</span>
00528 <span class="comment"> * @sa _stp_map_add_int64</span>
00529 <span class="comment"> */</span>
<a name="l00530"></a><a class="code" href="map_8c.html#a17">00530</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)
00531 {
00532 __stp_map_set_int64 (map, val, 0);
00533 }
00534
00535 <span class="comment"></span>
00536 <span class="comment">/** Adds an int64 to the current element's value.</span>
00537 <span class="comment"> * This adds an int64 to the current element's value. The map must have been created</span>
00538 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00539 <span class="comment"> *</span>
00540 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00541 <span class="comment"> * is set for the map, this function does nothing.</span>
00542 <span class="comment"> * @param map</span>
00543 <span class="comment"> * @param val value</span>
00544 <span class="comment"> * @sa _stp_map_set_int64</span>
00545 <span class="comment"> */</span>
00546
<a name="l00547"></a><a class="code" href="map_8c.html#a18">00547</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)
00548 {
00549 __stp_map_set_int64 (map, val, 1);
00550 }
00551 <span class="comment"></span>
00552 <span class="comment">/** Gets the current element's value.</span>
00553 <span class="comment"> * @param map</span>
00554 <span class="comment"> * @returns The value. If the current element is not set or doesn't exist, returns 0.</span>
00555 <span class="comment"> */</span>
00556
<a name="l00557"></a><a class="code" href="map_8c.html#a19">00557</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)
00558 {
00559 <span class="keyword">struct </span><a class="code" href="structmap__node__int64.html">map_node_int64</a> *m;
00560 <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)
00561 <span class="keywordflow">return</span> 0;
00562 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00563 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>;
00564 <span class="keywordflow">return</span> m-><a class="code" href="structmap__node__int64.html#o1">val</a>;
00565 }
00566 <span class="comment"></span>
00567 <span class="comment">/** Set the current element's value to a string.</span>
00568 <span class="comment"> * This sets the current element's value to an string. The map must have been created</span>
00569 <span class="comment"> * to hold int64s using <i>_stp_map_new(xxx, STRING)</i></span>
00570 <span class="comment"> *</span>
00571 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00572 <span class="comment"> * is set for the map, this function does nothing.</span>
00573 <span class="comment"> * @param map</span>
00574 <span class="comment"> * @param val new string</span>
00575 <span class="comment"> */</span>
00576
<a name="l00577"></a><a class="code" href="map_8c.html#a20">00577</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)
00578 {
00579 <span class="keyword">struct </span>map_node_str *m;
00580
00581 <span class="keywordflow">if</span> (map == NULL)
00582 <span class="keywordflow">return</span>;
00583
00584 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00585 <span class="keywordflow">if</span> (val == NULL)
00586 <span class="keywordflow">return</span>;
00587
00588 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00589 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00590 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00591 <span class="comment">/* ERROR. FIXME */</span>
00592 <span class="keywordflow">return</span>;
00593 }
00594 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00595 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>);
00596 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00597 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00598 } <span class="keywordflow">else</span> {
00599 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00600 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00601 }
00602 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>);
00603 } <span class="keywordflow">else</span> {
00604 m = (<span class="keyword">struct </span>map_node_str *)
00605 <a class="code" href="alloc_8h.html#a4">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_str));
00606 <span class="comment">/* add node to list */</span>
00607 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>);
00608 }
00609
00610 <span class="comment">/* copy the key(s) */</span>
00611 map_copy_keys(map, &m-><a class="code" href="structmap__node__str.html#o0">n</a>);
00612
00613 <span class="comment">/* set the value */</span>
00614 m-><a class="code" href="structmap__node__str.html#o1">str</a> = <a class="code" href="alloc_8h.html#a3">_stp_alloc</a>(strlen(val) + 1);
00615 strcpy(m-><a class="code" href="structmap__node__str.html#o1">str</a>, val);
00616 } <span class="keywordflow">else</span> {
00617 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00618 <span class="keywordflow">return</span>;
00619
00620 <span class="keywordflow">if</span> (val) {
00621 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00622 <span class="keywordflow">if</span> (m-><a class="code" href="structmap__node__str.html#o1">str</a>)
00623 <a class="code" href="alloc_8h.html#a6">_stp_free</a>(m-><a class="code" href="structmap__node__str.html#o1">str</a>);
00624 m-><a class="code" href="structmap__node__str.html#o1">str</a> = <a class="code" href="alloc_8h.html#a3">_stp_alloc</a>(strlen(val) + 1);
00625 strcpy(m-><a class="code" href="structmap__node__str.html#o1">str</a>, val);
00626 } <span class="keywordflow">else</span> {
00627 <span class="comment">/* setting value to 0 is the same as deleting */</span>
00628 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00629 }
00630 }
00631 }
00632 <span class="comment"></span>
00633 <span class="comment">/** Gets the current element's value.</span>
00634 <span class="comment"> * @param map</span>
00635 <span class="comment"> * @returns A string pointer. If the current element is not set or doesn't exist, returns NULL.</span>
00636 <span class="comment"> */</span>
00637
<a name="l00638"></a><a class="code" href="map_8c.html#a21">00638</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)
00639 {
00640 <span class="keyword">struct </span>map_node_str *m;
00641 <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)
00642 <span class="keywordflow">return</span> NULL;
00643 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00644 m = (<span class="keyword">struct </span>map_node_str *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00645 <span class="keywordflow">return</span> m-><a class="code" href="structmap__node__str.html#o1">str</a>;
00646 }
00647 <span class="comment"></span>
00648 <span class="comment">/** Set the current element's value to a stat.</span>
00649 <span class="comment"> * This sets the current element's value to an stat struct. The map must have been created</span>
00650 <span class="comment"> * to hold stats using <i>_stp_map_new(xxx, STAT)</i>. This function would only be used</span>
00651 <span class="comment"> * if we wanted to set stats to something other than the normal initial values (count = 0,</span>
00652 <span class="comment"> * sum = 0, etc). It may be deleted if it doesn't turn out to be useful.</span>
00653 <span class="comment"> * @sa _stp_map_stat_add </span>
00654 <span class="comment"> *</span>
00655 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00656 <span class="comment"> * is set for the map, this function does nothing.</span>
00657 <span class="comment"> * @param map</span>
00658 <span class="comment"> * @param stats pointer to stats struct.</span>
00659 <span class="comment"> * @todo Histograms don't work yet.</span>
00660 <span class="comment"> */</span>
00661
<a name="l00662"></a><a class="code" href="map_8c.html#a22">00662</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)
00663 {
00664 <span class="keyword">struct </span>map_node_stat *m;
00665
00666 <span class="keywordflow">if</span> (map == NULL)
00667 <span class="keywordflow">return</span>;
00668 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>);
00669
00670 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00671 <span class="keywordflow">if</span> (stats == NULL)
00672 <span class="keywordflow">return</span>;
00673
00674 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>) {
00675 <span class="keywordflow">if</span> (list_empty(&map-><a class="code" href="structmap__root.html#o5">pool</a>)) {
00676 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o3">no_wrap</a>) {
00677 <span class="comment">/* ERROR. FIXME */</span>
00678 <span class="keywordflow">return</span>;
00679 }
00680 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o4">head</a>.next;
00681 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>);
00682 map_free_strings(map, (<span class="keyword">struct</span> <a class="code" href="structmap__node.html">map_node</a> *)m);
00683 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00684 } <span class="keywordflow">else</span> {
00685 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o5">pool</a>.next;
00686 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00687 }
00688 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>);
00689 } <span class="keywordflow">else</span> {
00690 m = (<span class="keyword">struct </span>map_node_stat *)
00691 <a class="code" href="alloc_8h.html#a4">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_stat));
00692 <span class="comment">/* add node to list */</span>
00693 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>);
00694 }
00695
00696 <span class="comment">/* copy the key(s) */</span>
00697 map_copy_keys(map, &m-><a class="code" href="structmap__node__stat.html#o0">n</a>);
00698
00699 <span class="comment">/* set the value */</span>
00700 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>));
00701 } <span class="keywordflow">else</span> {
00702 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00703 <span class="keywordflow">return</span>;
00704
00705 <span class="keywordflow">if</span> (stats) {
00706 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00707 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>));
00708 } <span class="keywordflow">else</span> {
00709 <span class="comment">/* setting value to NULL is the same as deleting */</span>
00710 <a class="code" href="map_8c.html#a5">_stp_map_key_del</a>(map);
00711 }
00712 }
00713 }
00714 <span class="comment"></span>
00715 <span class="comment">/** Gets the current element's value.</span>
00716 <span class="comment"> * @param map</span>
00717 <span class="comment"> * @returns A pointer to the stats struct. If the current element is not set </span>
00718 <span class="comment"> * or doesn't exist, returns NULL.</span>
00719 <span class="comment"> */</span>
00720
<a name="l00721"></a><a class="code" href="map_8c.html#a23">00721</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)
00722 {
00723 <span class="keyword">struct </span>map_node_stat *m;
00724 <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)
00725 <span class="keywordflow">return</span> NULL;
00726 dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-><a class="code" href="structmap__root.html#o6">key</a>);
00727 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00728 <span class="keywordflow">return</span> &m-><a class="code" href="structmap__node__stat.html#o1">stats</a>;
00729 }
00730 <span class="comment"></span>
00731 <span class="comment">/** Add to the current element's statistics.</span>
00732 <span class="comment"> * Increments the statistics counter by one and the sum by <i>val</i>.</span>
00733 <span class="comment"> * Adjusts minimum, maximum, and histogram.</span>
00734 <span class="comment"> *</span>
00735 <span class="comment"> * If the element doesn't exist, it is created. If no current element (key)</span>
00736 <span class="comment"> * is set for the map, this function does nothing.</span>
00737 <span class="comment"> * @param map</span>
00738 <span class="comment"> * @param val value to add to the statistics</span>
00739 <span class="comment"> * @todo Histograms don't work yet.</span>
00740 <span class="comment"> */</span>
00741
<a name="l00742"></a><a class="code" href="map_8c.html#a24">00742</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)
00743 {
00744 <span class="keyword">struct </span>map_node_stat *m;
00745 <span class="keywordflow">if</span> (map == NULL)
00746 <span class="keywordflow">return</span>;
00747
00748 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o7">create</a>) {
00749 <a class="code" href="structstat.html">stat</a> st = { 1, val, val, val };
00750 <span class="comment">/* histogram */</span>
00751 <a class="code" href="map_8c.html#a22">_stp_map_set_stat</a>(map, &st);
00752 <span class="keywordflow">return</span>;
00753 }
00754
00755 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o6">key</a> == NULL)
00756 <span class="keywordflow">return</span>;
00757
00758 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>);
00759 m = (<span class="keyword">struct </span>map_node_stat *)map-><a class="code" href="structmap__root.html#o6">key</a>;
00760 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o0">count</a>++;
00761 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o1">sum</a> += val;
00762 <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>)
00763 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o3">max</a> = val;
00764 <span class="keywordflow">if</span> (val < m->stats.min)
00765 m-><a class="code" href="structmap__node__stat.html#o1">stats</a>.<a class="code" href="structstat.html#o2">min</a> = val;
00766 <span class="comment">/* histogram */</span>
00767 }
00768
00769 <span class="comment">/********************** List Functions *********************/</span>
00770 <span class="comment"></span>
00771 <span class="comment">/** Create a new list.</span>
00772 <span class="comment"> * A list is a map that internally has an incrementing long key for each member.</span>
00773 <span class="comment"> * Lists do not wrap if elements are added to exceed their maximum size.</span>
00774 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00775 <span class="comment"> * be preallocated. If max_entries is 0, there will be no maximum and entries</span>
00776 <span class="comment"> * will be allocated dynamically.</span>
00777 <span class="comment"> * @param type Type of values stored in this list. </span>
00778 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00779 <span class="comment"> * @sa foreach</span>
00780 <span class="comment"> */</span>
00781
<a name="l00782"></a><a class="code" href="map_8c.html#a25">00782</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)
00783 {
00784 <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);
00785 map-><a class="code" href="structmap__root.html#o3">no_wrap</a> = 1;
00786 <span class="keywordflow">return</span> map;
00787 }
00788 <span class="comment"></span>
00789 <span class="comment">/** Clears a list.</span>
00790 <span class="comment"> * All elements in the list are deleted.</span>
00791 <span class="comment"> * @param map </span>
00792 <span class="comment"> */</span>
00793
<a name="l00794"></a><a class="code" href="map_8c.html#a26">00794</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)
00795 {
00796 <span class="keywordflow">if</span> (map == NULL)
00797 <span class="keywordflow">return</span>;
00798
00799 <span class="keywordflow">if</span> (!list_empty(&map-><a class="code" href="structmap__root.html#o4">head</a>)) {
00800 <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;
00801
00802 <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>) {
00803 <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;
00804
00805 <span class="comment">/* remove node from old hash list */</span>
00806 hlist_del_init(&ptr-><a class="code" href="structmap__node.html#o1">hnode</a>);
00807
00808 <span class="comment">/* remove from entry list */</span>
00809 list_del(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>);
00810
00811 <span class="comment">/* remove any allocated string storage */</span>
00812 map_free_strings(map, ptr);
00813
00814 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o1">maxnum</a>)
00815 list_add(&ptr-><a class="code" href="structmap__node.html#o0">lnode</a>, &map-><a class="code" href="structmap__root.html#o5">pool</a>);
00816 <span class="keywordflow">else</span>
00817 <a class="code" href="alloc_8h.html#a6">_stp_free</a>(ptr);
00818
00819 map-><a class="code" href="structmap__root.html#o2">num</a>--;
00820 ptr = next;
00821 }
00822 }
00823
00824 <span class="keywordflow">if</span> (map-><a class="code" href="structmap__root.html#o2">num</a> != 0) {
00825 <a class="code" href="io_8c.html#a4">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>);
00826 }
00827 }
00828 <span class="comment"></span>
00829 <span class="comment">/** Adds a string to a list.</span>
00830 <span class="comment"> * @param map</span>
00831 <span class="comment"> * @param str</span>
00832 <span class="comment"> */</span>
00833
<a name="l00834"></a><a class="code" href="map_8c.html#a27">00834</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)
00835 {
00836 <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>);
00837 <a class="code" href="map_8c.html#a20">_stp_map_set_str</a>(map, str);
00838 }
00839 <span class="comment"></span>
00840 <span class="comment">/** Adds an int64 to a list.</span>
00841 <span class="comment"> * @param map</span>
00842 <span class="comment"> * @param val</span>
00843 <span class="comment"> */</span>
00844
<a name="l00845"></a><a class="code" href="map_8c.html#a28">00845</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)
00846 {
00847 <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>);
00848 <a class="code" href="map_8c.html#a17">_stp_map_set_int64</a>(map, val);
00849 }
00850 <span class="comment"></span>
00851 <span class="comment">/** Get the number of elements in a list.</span>
00852 <span class="comment"> * @param map</span>
00853 <span class="comment"> * @returns The number of elements in a list.</span>
00854 <span class="comment"> */</span>
00855
<a name="l00856"></a><a class="code" href="map_8c.html#a29">00856</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)
00857 {
00858 <span class="keywordflow">return</span> map-><a class="code" href="structmap__root.html#o2">num</a>;
00859 }
</pre></div><hr size="1"><address style="align: right;"><small>
Generated on Tue Mar 22 10:27:36 2005 for SystemTap.</small></body>
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