--- /dev/null
+/*
+ * Copyright (c) <2008>, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY SUN MICROSYSTEMS, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+provider memcached {
+ /**
+ * Fired when a connection object is allocated from the connection pool.
+ * @param connid the connection id
+ */
+ probe conn__allocate(int connid);
+
+ /**
+ * Fired when a connection object is released back to the connection pool.
+ * @param connid the connection id
+ */
+ probe conn__release(int connid);
+
+ /**
+ * Fired when a new connection object is created (there are no more
+ * connection objects in the connection pool).
+ * @param ptr pointer to the connection object
+ */
+ probe conn__create(void *ptr);
+
+ /**
+ * Fired when a connection object is destroyed ("released back to
+ * the memory subsystem").
+ * @param ptr pointer to the connection object
+ */
+ probe conn__destroy(void *ptr);
+
+ /**
+ * Fired when a connection is dispatched from the "main thread" to a
+ * worker thread.
+ * @param connid the connection id
+ * @param threadid the thread id
+ */
+ probe conn__dispatch(int connid, int threadid);
+
+ /**
+ * Allocate memory from the slab allocator.
+ * @param size the requested size
+ * @param slabclass the allocation will be fulfilled in this class
+ * @param slabsize the size of each item in this class
+ * @param ptr pointer to allocated memory
+ */
+ probe slabs__allocate(int size, int slabclass, int slabsize, void* ptr);
+
+ /**
+ * Failed to allocate memory (out of memory).
+ * @param size the requested size
+ * @param slabclass the class that failed to fulfill the request
+ */
+ probe slabs__allocate__failed(int size, int slabclass);
+
+ /**
+ * Fired when a slab class attempts to allocate more space.
+ * @param slabclass class that needs more memory
+ */
+ probe slabs__slabclass__allocate(int slabclass);
+
+ /**
+ * Failed to allocate memory (out of memory).
+ * @param slabclass the class that failed grab more memory
+ */
+ probe slabs__slabclass__allocate__failed(int slabclass);
+
+ /**
+ * Release memory.
+ * @param size the size of the memory
+ * @param slabclass the class the memory belongs to
+ * @param ptr pointer to the memory to release
+ */
+ probe slabs__free(int size, int slabclass, void* ptr);
+
+ /**
+ * Fired when the when we have searched the hash table for a named key.
+ * These two elements provide an insight in how well the hash function
+ * functions. Long traversals are a sign of a less optimal function,
+ * wasting cpu capacity.
+ *
+ * @param key the key searched for
+ * @param keylen length of the key
+ * @param depth the depth in the list of hash table
+ */
+ probe assoc__find(const char *key, int keylen, int depth);
+
+ /**
+ * Fired when a new item has been inserted.
+ * @param key the key just inserted
+ * @param keylen length of the key
+ * @param nokeys the total number of keys currently stored,
+ * including the key for which insert was called.
+ */
+ probe assoc__insert(const char *key, int keylen, int nokeys);
+
+ /**
+ * Fired when a new item has been removed.
+ * @param key the key just deleted
+ * @param keylen length of the key
+ * @param nokeys the total number of keys currently stored,
+ * excluding the key for which delete was called.
+ */
+ probe assoc__delete(const char *key, int keylen, int nokeys);
+
+ /**
+ * Fired when an item is linked into the cache.
+ * @param key the items key
+ * @param keylen length of the key
+ * @param size the size of the data
+ */
+ probe item__link(const char *key, int keylen, int size);
+
+ /**
+ * Fired when an item is deleted.
+ * @param key the items key
+ * @param keylen length of the key
+ * @param size the size of the data
+ */
+ probe item__unlink(const char *key, int keylen, int size);
+
+ /**
+ * Fired when the refcount for an item is reduced.
+ * @param key the items key
+ * @param keylen length of the key
+ * @param size the size of the data
+ */
+ probe item__remove(const char *key, int keylen, int size);
+
+ /**
+ * Fired when the "last refenced" time is updated.
+ * @param key the items key
+ * @param keylen length of the key
+ * @param size the size of the data
+ */
+ probe item__update(const char *key, int keylen, int size);
+
+ /**
+ * Fired when an item is replaced with another item.
+ * @param oldkey the key of the item to replace
+ * @param oldkeylen the length of the old key
+ * @param oldsize the size of the old item
+ * @param newkey the key of the new item
+ * @param newkeylen the length of the new key
+ * @param newsize the size of the new item
+ */
+ probe item__replace(const char *oldkey, int oldkeylen, int oldsize,
+ const char *newkey, int newkeylen, int newsize);
+
+ /**
+ * Fired when the processing of a command starts.
+ * @param connid the connection id
+ * @param request the incomming request
+ * @param size the size of the request
+ */
+ probe process__command__start(int connid, const void *request, int size);
+
+ /**
+ * Fired when the processing of a command is done.
+ * @param connid the connection id
+ * @param respnse the response to send back to the client
+ * @param size the size of the response
+ */
+ probe process__command__end(int connid, const void *response, int size);
+
+ /**
+ * Fired for a get-command
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size size of the key's data (or signed int -1 if not found)
+ * @param casid the casid for the item
+ */
+ probe command__get(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for an add-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size the new size of the key's data (or signed int -1 if
+ * not found)
+ * @param casid the casid for the item
+ */
+ probe command__add(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for a set-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size the new size of the key's data (or signed int -1 if
+ * not found)
+ * @param casid the casid for the item
+ */
+ probe command__set(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for a replace-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size the new size of the key's data (or signed int -1 if
+ * not found)
+ * @param casid the casid for the item
+ */
+ probe command__replace(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for a prepend-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size the new size of the key's data (or signed int -1 if
+ * not found)
+ * @param casid the casid for the item
+ */
+ probe command__prepend(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for an append-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size the new size of the key's data (or signed int -1 if
+ * not found)
+ * @param casid the casid for the item
+ */
+ probe command__append(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for a cas-command.
+ * @param connid connection id
+ * @param key requested key
+ * @param keylen length of the key
+ * @param size size of the key's data (or signed int -1 if not found)
+ * @param casid the cas id requested
+ */
+ probe command__cas(int connid, const char *key, int keylen, int size, int64_t casid);
+
+ /**
+ * Fired for an incr command.
+ * @param connid connection id
+ * @param key the requested key
+ * @param keylen length of the key
+ * @param val the new value
+ */
+ probe command__incr(int connid, const char *key, int keylen, int64_t val);
+
+ /**
+ * Fired for a decr command.
+ * @param connid connection id
+ * @param key the requested key
+ * @param keylen length of the key
+ * @param val the new value
+ */
+ probe command__decr(int connid, const char *key, int keylen, int64_t val);
+
+ /**
+ * Fired for a delete command.
+ * @param connid connection id
+ * @param key the requested key
+ * @param keylen length of the key
+ */
+ probe command__delete(int connid, const char *key, int keylen);
+
+};
+
+#pragma D attributes Unstable/Unstable/Common provider memcached provider
+#pragma D attributes Private/Private/Common provider memcached module
+#pragma D attributes Private/Private/Common provider memcached function
+#pragma D attributes Unstable/Unstable/Common provider memcached name
+#pragma D attributes Unstable/Unstable/Common provider memcached args
projects / awesomized / libmemcached / blobdiff