From: Padraig O'Sullivan <osullivan.padraig@gmail.com>
Date: Fri, 10 Jul 2009 04:19:15 +0000 (-0400)
Subject: Making some modifications to the C++ interface. Mainly going from const char
X-Git-Tag: 0.32~17^2~10
X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=71e7ddb8865ac660dfa6c1f5c11204aa90ba075f;p=m6w6%2Flibmemcached

Making some modifications to the C++ interface. Mainly going from const char
* to const std::string&. Also updated the C++ client test source file.
---

diff --git a/libmemcached/memcached.hh b/libmemcached/memcached.hh
index 2f2d519e..55b09945 100644
--- a/libmemcached/memcached.hh
+++ b/libmemcached/memcached.hh
@@ -2,6 +2,8 @@
 #include <string.h>
 #include <stdio.h>
 
+#include <string>
+
 class Memcached
 {
   memcached_st memc;
@@ -9,41 +11,73 @@ class Memcached
 
 public:
 
-  Memcached() : memc(), result()
+  Memcached() 
+    : 
+      memc(),
+      result()
   {
     memcached_create(&memc);
   }
 
-  Memcached(memcached_st *clone) : memc(), result()
+  Memcached(memcached_st *clone) 
+    : 
+      memc(),
+      result()
   {
     memcached_clone(&memc, clone);
   }
-  char *fetch (char *key, size_t *key_length, size_t *value_length)
+
+  ~Memcached()
+  {
+    memcached_free(&memc);
+  }
+
+  std::string fetch(const std::string& key, size_t *key_length, size_t *value_length)
   {
     uint32_t flags;
     memcached_return rc;
+    std::string ret_val;
 
-    return memcached_fetch(&memc, key, key_length,
-                    value_length, &flags, &rc);
+    char *value= memcached_fetch(&memc, const_cast<char *>(key.c_str()), key_length,
+                                 value_length, &flags, &rc);
+    if (value)
+    {
+      ret_val.assign(value);
+    }
+    return ret_val;
   }
-  char *get(const char *key, size_t *value_length)
+
+  std::string get(const std::string& key, size_t *value_length)
   {
     uint32_t flags;
     memcached_return rc;
+    std::string ret_val;
 
-    return memcached_get(&memc, key, strlen(key),
-                         value_length, &flags, &rc);
+    char *value= memcached_get(&memc, key.c_str(), key.length(),
+                               value_length, &flags, &rc);
+    if (value)
+    {
+      ret_val.assign(value);
+    }
+    return ret_val;
   }
 
-  char *get_by_key(const char *master_key, const char *key, 
+  std::string get_by_key(const std::string& master_key, 
+                   const std::string& key, 
                    size_t *value_length)
   {
     uint32_t flags;
     memcached_return rc;
+    std::string ret_val;
 
-    return memcached_get_by_key(&memc, master_key, strlen(master_key), 
-                                key, strlen(key),
-                                value_length, &flags, &rc);
+    char *value= memcached_get_by_key(&memc, master_key.c_str(), master_key.length(), 
+                                      key.c_str(), key.length(),
+                                      value_length, &flags, &rc);
+    if (value)
+    {
+      ret_val.assign(value);
+    }
+    return ret_val;
   }
 
   memcached_return mget(char **keys, size_t *key_length, 
@@ -53,28 +87,32 @@ public:
     return memcached_mget(&memc, keys, key_length, number_of_keys);
   }
 
-  memcached_return set(const char *key, const char *value, size_t value_length)
+  memcached_return set(const std::string& key, const char *value, size_t value_length)
   {
-    return memcached_set(&memc, key, strlen(key),
+    return memcached_set(&memc, key.c_str(), key.length(),
                          value, value_length,
                          time_t(0), uint32_t(0));
   }
 
-  memcached_return set_by_key(const char *master_key, const char *key, 
+  memcached_return set_by_key(const std::string& master_key, 
+                              const std::string& key, 
                               const char *value, size_t value_length)
   {
-    return memcached_set_by_key(&memc, master_key, strlen(master_key),
-                         key, strlen(key),
-                         value, value_length,
-                         time_t(0),
-                         uint32_t(0) );
+    return memcached_set_by_key(&memc, master_key.c_str(), 
+                                master_key.length(),
+                                key.c_str(), key.length(),
+                                value, value_length,
+                                time_t(0),
+                                uint32_t(0));
   }
+
   memcached_return
-    increment(const char *key, unsigned int offset, uint64_t *value)
+    increment(const std::string& key, unsigned int offset, uint64_t *value)
   {
-    return memcached_increment(&memc, key, strlen(key),
+    return memcached_increment(&memc, key.c_str(), key.length(),
                          offset, value);
   }
+
   memcached_return
     decrement(const char *key, unsigned int offset, uint64_t *value)
   {
@@ -87,6 +125,7 @@ public:
   {
     return memcached_add(&memc, key, strlen(key), value, value_length, 0, 0);
   }
+
   memcached_return add_by_key(const char *master_key, const char *key, 
                               const char *value, size_t value_length)
   {
@@ -103,6 +142,7 @@ public:
                      value, value_length,
                      0, 0);
   }
+
   memcached_return replace_by_key(const char *master_key, const char *key, 
                                   const char *value, size_t value_length)
   {
@@ -117,6 +157,7 @@ public:
     return memcached_prepend(&memc, key, strlen(key),
                     value, value_length, 0, 0);
   }
+
   memcached_return prepend_by_key(const char *master_key, const char *key, 
                                   const char *value, size_t value_length)
   {
@@ -133,6 +174,7 @@ public:
     return memcached_append(&memc, key, strlen(key),
                     value, value_length, 0, 0);
   }
+
   memcached_return  append_by_key(const char *master_key, const char *key, 
                                   const char *value, size_t value_length)
   {
@@ -141,12 +183,14 @@ public:
                                    key, strlen(key),
                                    value, value_length, 0, 0);
   }
+
   memcached_return  cas(const char *key, const char *value, 
                         size_t value_length, uint64_t cas_arg)
   {
     return memcached_cas(&memc, key, strlen(key),
                     value, value_length, 0, 0, cas_arg);
   }
+
   memcached_return  cas_by_key(const char *master_key, const char *key, 
                                const char *value, size_t value_length, 
                                uint64_t cas_arg)
@@ -157,19 +201,17 @@ public:
                                 value, value_length,
                                 0, 0, cas_arg);
   }
+
   // using 'remove' vs. 'delete' since 'delete' is a keyword 
   memcached_return remove(const char *key)
   {
     return memcached_delete (&memc, key, strlen(key), 0);
 
   }
+
   memcached_return delete_by_key(const char *master_key, const char *key)
   {
     return memcached_delete_by_key(&memc, master_key, strlen(master_key),
                            key, strlen(key), 0);
   }
-  ~Memcached()
-  {
-    memcached_free(&memc);
-  }
 };
diff --git a/tests/plus.cpp b/tests/plus.cpp
index d3674d6c..1b7be39d 100644
--- a/tests/plus.cpp
+++ b/tests/plus.cpp
@@ -16,6 +16,10 @@
 
 #include "test.h"
 
+#include <string>
+
+using namespace std;
+
 extern "C" {
    test_return basic_test(memcached_st *memc);
    uint8_t increment_test(memcached_st *memc);
@@ -28,13 +32,13 @@ test_return basic_test(memcached_st *memc)
 {
   Memcached foo(memc);
   const char *value_set= "This is some data";
-  char *value;
+  string value;
   size_t value_length;
 
   foo.set("mine", value_set, strlen(value_set));
   value= foo.get("mine", &value_length);
 
-  assert((memcmp(value, value_set, value_length) == 0));
+  assert((memcmp(value.c_str(), value_set, value_length) == 0));
 
   return TEST_SUCCESS;
 }
@@ -43,18 +47,18 @@ uint8_t increment_test(memcached_st *memc)
 {
   Memcached mcach(memc);
   memcached_return rc;
-  const char *key= "inctest";
+  const string key("inctest");
   const char *inc_value= "1";
-  char *ret_value;
+  string ret_value;
   uint64_t int_inc_value;
   uint64_t int_ret_value;
   size_t value_length;
 
   mcach.set(key, inc_value, strlen(inc_value));
   ret_value= mcach.get(key, &value_length);
-  printf("\nretvalue %s\n",ret_value);
+  printf("\nretvalue %s\n",ret_value.c_str());
   int_inc_value= uint64_t(atol(inc_value));
-  int_ret_value= uint64_t(atol(ret_value));
+  int_ret_value= uint64_t(atol(ret_value.c_str()));
   assert(int_ret_value == int_inc_value); 
 
   rc= mcach.increment(key, 1, &int_ret_value);
@@ -76,19 +80,19 @@ test_return basic_master_key_test(memcached_st *memc)
 {
    Memcached foo(memc);
   const char *value_set= "Data for server A";
-  const char *master_key_a= "server-a";
-  const char *master_key_b= "server-b";
-  const char *key= "xyz";
-  char *value;
+  const string master_key_a("server-a");
+  const string master_key_b("server-b");
+  const string key("xyz");
+  string value;
   size_t value_length;
 
   foo.set_by_key(master_key_a, key, value_set, strlen(value_set));
   value= foo.get_by_key(master_key_a, key, &value_length);
 
-  assert((memcmp(value, value_set, value_length) == 0));
+  assert((memcmp(value.c_str(), value_set, value_length) == 0));
 
   value= foo.get_by_key(master_key_b, key, &value_length);
-  assert((memcmp(value, value_set, value_length) == 0));
+  assert((memcmp(value.c_str(), value_set, value_length) == 0));
 
   return TEST_SUCCESS;
 }