Merge in conversion to C++.

[awesomized/libmemcached] / clients / generator.cc

diff --git a/clients/generator.cc b/clients/generator.cc
new file mode 100644 (file)
index 0000000..80b398b
--- /dev/null
+++ b/clients/generator.cc
@@ -0,0 +1,96 @@
+/* LibMemcached
+ * 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:
+ *
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "generator.h"
+
+/* Use this for string generation */
+static const char ALPHANUMERICS[]=
+  "0123456789ABCDEFGHIJKLMNOPQRSTWXYZabcdefghijklmnopqrstuvwxyz";
+
+#define ALPHANUMERICS_SIZE (sizeof(ALPHANUMERICS)-1)
+
+static size_t get_alpha_num(void)
+{
+  return (size_t)random() % ALPHANUMERICS_SIZE;
+}
+
+static void get_random_string(char *buffer, size_t size)
+{
+  char *buffer_ptr= buffer;
+
+  while (--size)
+    *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
+  *buffer_ptr++= ALPHANUMERICS[get_alpha_num()];
+}
+
+void pairs_free(pairs_st *pairs)
+{
+  uint32_t x;
+
+  if (! pairs)
+    return;
+
+  /* We free until we hit the null pair we stores during creation */
+  for (x= 0; pairs[x].key; x++)
+  {
+    free(pairs[x].key);
+    if (pairs[x].value)
+      free(pairs[x].value);
+  }
+
+  free(pairs);
+}
+
+pairs_st *pairs_generate(uint64_t number_of, size_t value_length)
+{
+  unsigned int x;
+  pairs_st *pairs;
+
+  pairs= (pairs_st*)calloc((size_t)number_of + 1, sizeof(pairs_st));
+
+  if (!pairs)
+    goto error;
+
+  for (x= 0; x < number_of; x++)
+  {
+    pairs[x].key= (char *)calloc(100, sizeof(char));
+    if (!pairs[x].key)
+      goto error;
+    get_random_string(pairs[x].key, 100);
+    pairs[x].key_length= 100;
+
+    if (value_length)
+    {
+      pairs[x].value= (char *)calloc(value_length, sizeof(char));
+      if (!pairs[x].value)
+        goto error;
+      get_random_string(pairs[x].value, value_length);
+      pairs[x].value_length= value_length;
+    }
+    else
+    {
+      pairs[x].value= NULL;
+      pairs[x].value_length= 0;
+    }
+  }
+
+  return pairs;
+error:
+    fprintf(stderr, "Memory Allocation failure in pairs_generate.\n");
+    exit(0);
+}