cmake: reorder src/bin

[awesomized/libmemcached] / src / bin / common / execute.cc

diff --git a/src/bin/common/execute.cc b/src/bin/common/execute.cc
new file mode 100644 (file)
index 0000000..f0a5e47
--- /dev/null
+++ b/src/bin/common/execute.cc
@@ -0,0 +1,142 @@
+/* LibMemcached
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license.  See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
+/*
+  Execute a memcached_set() a set of pairs.
+  Return the number of rows set.
+*/
+
+#include "mem_config.h"
+#include "execute.h"
+
+unsigned int execute_set(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
+{
+  uint32_t count= 0;
+  for (; count < number_of; ++count)
+  {
+    memcached_return_t rc= memcached_set(memc, pairs[count].key, pairs[count].key_length,
+                                         pairs[count].value, pairs[count].value_length,
+                                         0, 0);
+    if (memcached_failed(rc))
+    {
+      fprintf(stderr, "%s:%d Failure on %u insert (%s) of %.*s\n",
+              __FILE__, __LINE__, count,
+              memcached_last_error_message(memc),
+              (unsigned int)pairs[count].key_length, pairs[count].key);
+      
+      // We will try to reconnect and see if that fixes the issue
+      memcached_quit(memc);
+
+      return count;
+    }
+  }
+
+  return count;
+}
+
+/*
+  Execute a memcached_get() on a set of pairs.
+  Return the number of rows retrieved.
+*/
+unsigned int execute_get(memcached_st *memc, pairs_st *pairs, unsigned int number_of)
+{
+  unsigned int x;
+  unsigned int retrieved;
+
+
+  for (retrieved= 0,x= 0; x < number_of; x++)
+  {
+    size_t value_length;
+    uint32_t flags;
+
+    unsigned int fetch_key= (unsigned int)((unsigned int)random() % number_of);
+
+    memcached_return_t rc;
+    char *value= memcached_get(memc, pairs[fetch_key].key, pairs[fetch_key].key_length,
+                               &value_length, &flags, &rc);
+
+    if (memcached_failed(rc))
+    {
+      fprintf(stderr, "%s:%d Failure on read(%s) of %.*s\n",
+              __FILE__, __LINE__,
+              memcached_last_error_message(memc),
+              (unsigned int)pairs[fetch_key].key_length, pairs[fetch_key].key);
+    }
+    else
+    {
+      retrieved++;
+    }
+
+    ::free(value);
+  }
+
+  return retrieved;
+}
+
+/**
+ * Callback function to count the number of results
+ */
+static memcached_return_t callback_counter(const memcached_st *ptr,
+                                           memcached_result_st *result,
+                                           void *context)
+{
+  (void)ptr;
+  (void)result;
+  unsigned int *counter= (unsigned int *)context;
+  *counter= *counter + 1;
+
+  return MEMCACHED_SUCCESS;
+}
+
+/**
+ * Try to run a large mget to get all of the keys
+ * @param memc memcached handle
+ * @param keys the keys to get
+ * @param key_length the length of the keys
+ * @param number_of the number of keys to try to get
+ * @return the number of keys received
+ */
+unsigned int execute_mget(memcached_st *memc,
+                          const char * const *keys,
+                          size_t *key_length,
+                          unsigned int number_of)
+{
+  unsigned int retrieved= 0;
+  memcached_execute_fn callbacks[]= { callback_counter };
+  memcached_return_t rc;
+  rc= memcached_mget_execute(memc, keys, key_length,
+                             (size_t)number_of, callbacks, &retrieved, 1);
+
+  if (rc == MEMCACHED_SUCCESS || rc == MEMCACHED_NOTFOUND ||
+          rc == MEMCACHED_BUFFERED || rc == MEMCACHED_END)
+  {
+    rc= memcached_fetch_execute(memc, callbacks, (void *)&retrieved, 1);
+    if (rc != MEMCACHED_SUCCESS && rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_END)
+    {
+      fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
+              __FILE__, __LINE__,
+              memcached_strerror(memc, rc));
+      memcached_quit(memc);
+      return 0;
+    }
+  }
+  else
+  {
+    fprintf(stderr, "%s:%d Failed to execute mget: %s\n",
+            __FILE__, __LINE__,
+            memcached_strerror(memc, rc));
+    memcached_quit(memc);
+    return 0;
+  }
+
+  return retrieved;
+}