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<h1>ksrc/skins/posix/registry.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef PSE51_REGISTRY_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define PSE51_REGISTRY_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include <stdarg.h></span>
<a name="l00005"></a>00005 <span class="preprocessor">#include <nucleus/queue.h></span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <nucleus/synch.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <posix/posix.h></span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#define PSE51_MAXNAME 64</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span>
<a name="l00011"></a>00011 <span class="comment">/* A pse51_node_t is the holder to be added to each object which needs to be put</span>
<a name="l00012"></a>00012 <span class="comment"> in the registry. */</span>
<a name="l00013"></a>00013 <span class="keyword">typedef</span> <span class="keyword">struct </span>pse51_node {
<a name="l00014"></a>00014 <span class="keywordtype">unsigned</span> magic;
<a name="l00015"></a>00015 <span class="keywordtype">unsigned</span> flags; <span class="comment">/* PSE51_NODE_PARTIAL_INIT. */</span>
<a name="l00016"></a>00016 <span class="keywordtype">unsigned</span> refcount;
<a name="l00017"></a>00017 <span class="comment">/* pse51_unlink_t *dest_hook; */</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="keyword">struct </span>pse51_node *next;
<a name="l00020"></a>00020 <span class="keyword">struct </span>pse51_node **prev;
<a name="l00021"></a>00021 <span class="keywordtype">char</span> name[PSE51_MAXNAME];
<a name="l00022"></a>00022 } pse51_node_t;
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="keywordtype">int</span> pse51_reg_pkg_init(<span class="keywordtype">unsigned</span> objects_count, <span class="keywordtype">unsigned</span> maxfds);
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="keywordtype">void</span> pse51_reg_pkg_cleanup(<span class="keywordtype">void</span>);
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="comment">/* Get an existing node: oflags are POSIX open style flags.</span>
<a name="l00029"></a>00029 <span class="comment"> If 0 is returned and (*nodep) is NULL, then a new node should be added</span>
<a name="l00030"></a>00030 <span class="comment"> with node_add. */</span>
<a name="l00031"></a>00031 <span class="keywordtype">int</span> pse51_node_get(pse51_node_t **nodep,
<a name="l00032"></a>00032 <span class="keyword">const</span> <span class="keywordtype">char</span> *name,
<a name="l00033"></a>00033 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> magic,
<a name="l00034"></a>00034 <span class="keywordtype">long</span> oflags);
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="comment">/* bind a node. */</span>
<a name="l00037"></a>00037 <span class="keywordtype">int</span> pse51_node_add(pse51_node_t *node, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">unsigned</span> magic);
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="comment">/* Any successful call to node_get or node_add need to be paired with a call</span>
<a name="l00040"></a>00040 <span class="comment"> node_put before a node may be unlinked. */</span>
<a name="l00041"></a>00041 <span class="keywordtype">int</span> pse51_node_put(pse51_node_t *node);
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="comment">/* Remove the binding of a node to its name, if the node is still referenced,</span>
<a name="l00044"></a>00044 <span class="comment"> real destruction is deferred until the last call to node_put. */</span>
<a name="l00045"></a>00045 <span class="keywordtype">int</span> pse51_node_remove(pse51_node_t **nodep, <span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">unsigned</span> magic);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="preprocessor">#define PSE51_NODE_REMOVED 1</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>
<a name="l00049"></a>00049 <span class="preprocessor">#define pse51_node_ref_p(node) ((node)->refcount)</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span>
<a name="l00051"></a>00051 <span class="preprocessor">#define pse51_node_removed_p(node) \</span>
<a name="l00052"></a>00052 <span class="preprocessor"> ((node)->flags & PSE51_NODE_REMOVED && !pse51_node_ref_p(node))</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span>
<a name="l00054"></a>00054 <span class="comment">/* A pse51_desc_t is the structure associated with a descriptor. */</span>
<a name="l00055"></a>00055 <span class="keyword">typedef</span> <span class="keyword">struct </span>pse51_desc {
<a name="l00056"></a>00056 pse51_node_t *node;
<a name="l00057"></a>00057 <span class="keywordtype">long</span> flags;
<a name="l00058"></a>00058 <span class="keywordtype">int</span> fd;
<a name="l00059"></a>00059 } pse51_desc_t;
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordtype">int</span> pse51_desc_create(pse51_desc_t **descp, pse51_node_t *node, <span class="keywordtype">long</span> flags);
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">int</span> pse51_desc_get(pse51_desc_t **descp, <span class="keywordtype">int</span> fd, <span class="keywordtype">unsigned</span> magic);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordtype">int</span> pse51_desc_destroy(pse51_desc_t *desc);
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="preprocessor">#define pse51_desc_setflags(desc, fl) ((desc)->flags = (fl))</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span>
<a name="l00069"></a>00069 <span class="preprocessor">#define pse51_desc_getflags(desc) ((desc)->flags)</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span>
<a name="l00071"></a>00071 <span class="preprocessor">#define pse51_desc_node(desc) ((desc)->node)</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span>
<a name="l00073"></a>00073 <span class="preprocessor">#define pse51_desc_fd(desc) ((desc)->fd)</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span>
<a name="l00075"></a>00075 <span class="preprocessor">#define PSE51_PERMS_MASK (O_RDONLY | O_WRONLY | O_RDWR)</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span>
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">/* Associative lists, used for association of user-space to kernel-space</span>
<a name="l00079"></a>00079 <span class="comment"> objects. */</span>
<a name="l00080"></a>00080 <span class="preprocessor">#ifdef CONFIG_XENO_OPT_PERVASIVE</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="keyword">struct </span>mm_struct;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 DECLARE_EXTERN_XNLOCK(pse51_assoc_lock);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keyword">typedef</span> xnqueue_t pse51_assocq_t;
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00088"></a>00088 u_long key;
<a name="l00089"></a>00089 xnholder_t link;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="preprocessor">#define link2assoc(laddr) \</span>
<a name="l00092"></a>00092 <span class="preprocessor"> ((pse51_assoc_t *)((unsigned long)(laddr) - offsetof(pse51_assoc_t, link)))</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span>
<a name="l00094"></a>00094 } pse51_assoc_t;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00097"></a>00097 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> kfd;
<a name="l00098"></a>00098 pse51_assoc_t assoc;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="preprocessor">#define assoc2ufd(laddr) \</span>
<a name="l00101"></a>00101 <span class="preprocessor"> ((pse51_ufd_t *)((unsigned long) (laddr) - offsetof(pse51_ufd_t, assoc)))</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span>} pse51_ufd_t;
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="preprocessor">#define pse51_assocq_init(q) (initq(q))</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span>
<a name="l00106"></a>00106 <span class="preprocessor">#define pse51_assoc_key(assoc) ((assoc)->key)</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span>
<a name="l00108"></a>00108 <span class="keywordtype">void</span> pse51_assocq_destroy(pse51_assocq_t *q, <span class="keywordtype">void</span> (*destroy)(pse51_assoc_t *));
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keywordtype">int</span> pse51_assoc_insert(pse51_assocq_t *q,
<a name="l00111"></a>00111 pse51_assoc_t *assoc,
<a name="l00112"></a>00112 u_long key);
<a name="l00113"></a>00113
<a name="l00114"></a>00114 pse51_assoc_t *pse51_assoc_lookup(pse51_assocq_t *q,
<a name="l00115"></a>00115 u_long key);
<a name="l00116"></a>00116
<a name="l00117"></a>00117 pse51_assoc_t *pse51_assoc_remove(pse51_assocq_t *q,
<a name="l00118"></a>00118 u_long key);
<a name="l00119"></a>00119 <span class="preprocessor">#endif </span><span class="comment">/* CONFIG_XENO_OPT_PERVASIVE */</span>
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="preprocessor">#endif </span><span class="comment">/* PSE51_REGISTRY_H */</span>
</pre></div></div>
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