Fixes memory errors, broken code, bugs etc

package.xml

@@ -202,6 +202,7 @@ API
  * Fixes error where cache callback for get command was not setting expiration time properly
  * Added server type to server list
  * Remove use_sasl ini-variable and initialise sasl as needed
+ * CAS tokens are returned as integers and in case of too large values they overflow to strings
 
 Session handler
  * Session lock algorithm updated (new ini-values memcached.sess_lock_wait_min, memcached.sess_lock_wait_max and memcached.sess_lock_retries)

php_libmemcached_compat.c

@@ -18,36 +18,20 @@
 #include "php_memcached_private.h"
 #include "php_libmemcached_compat.h"
 
-memcached_st *php_memc_create_str (const char *str, size_t str_len)
+memcached_return php_memcached_exist (memcached_st *memc, zend_string *key)
 {
-#ifdef HAVE_LIBMEMCACHED_MEMCACHED
-	return memcached (str, str_len);
+#ifdef HAVE_MEMCACHED_EXIST
+	return memcached_exist (memc, key->val, key->len);
 #else
-	memcached_return rc;
-	memcached_st *memc;
-	memcached_server_st *servers;
-
-	memc = memcached_create(NULL);
-
-	if (!memc) {
-		return NULL;
-	}
-
-	servers = memcached_servers_parse (str);
-
-	if (!servers) {
-		memcached_free (memc);
-		return NULL;
+	memcached_return rc = MEMCACHED_SUCCESS;
+	uint32_t flags = 0;
+	size_t value_length = 0;
+	char *value = NULL;
+
+	value = memcached_get (memc, key->val, key->len, &value_length, &flags, &rc);
+	if (value) {
+		free (value);
 	}
-
-	rc = memcached_server_push (memc, servers);
-	memcached_server_free (servers);
-
-	if (rc != MEMCACHED_SUCCESS) {
-		memcached_free (memc);
-		return NULL;
-	}
-	return memc;
+	return rc;
 #endif
 }
-

php_libmemcached_compat.h

@@ -20,7 +20,7 @@
 /* this is the version(s) we support */
 #include <libmemcached/memcached.h>
 
-memcached_st *php_memc_create_str (const char *str, size_t str_len);
+memcached_return php_memcached_exist (memcached_st *memc, zend_string *key);
 
 #if defined(LIBMEMCACHED_VERSION_HEX) && LIBMEMCACHED_VERSION_HEX < 0x00052000
 #  define MEMCACHED_SERVER_TEMPORARILY_DISABLED (1024 << 2)