2 // Open Service Platform
3 // Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
5 // Licensed under the Apache License, Version 2.0 (the License);
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
20 * @brief This is the header file for the %Dns class.
22 * This header file contains the declarations of the %Dns class.
27 #include <FBaseResult.h>
28 #include <FNetIpAddress.h>
29 #include <FNetIpHostEntry.h>
30 #include <FNetNetConnection.h>
31 #include <FNetIDnsEventListener.h>
33 namespace Tizen { namespace Net
39 * @brief This class provides a way to access the resolver of the Domain Name %System.
43 * The %Dns class represents a request for information from a DNS server. A DNS request can be one of two types, represented by the GetHostByAddress()
44 * and GetHostByName() methods. The %GetHostByAddress() method represents a request for the DNS information about a host, while the %GetHostByName()
45 * method represents a request for the DNS host information for an IP address. Both requests can be made in an asynchronous mode.
47 * For more information on the class features, see <a href="../org.tizen.native.appprogramming/html/guide/net/domain_name_system_access.htm">Domain Name System Access</a>.
49 class _OSP_EXPORT_ Dns
50 : public Tizen::Base::Object
54 * The object is not fully constructed after this constructor is called. For full construction, the Construct() method must be called right after calling this constructor.
58 * @remarks After creating an instance of this class, one of the Construct() methods must be called explicitly to initialize this instance.
63 * This destructor overrides Tizen::Base::Object::~Object().
70 * Initializes this instance of %Dns with the specified parameters.
74 * @return An error code
75 * @param[in] netConnection A NetConnection on which the DNS request executes
76 * @param[in] listener A reference to IDnsEventListener
77 * @exception E_SUCCESS The method is successful.
78 * @exception E_INVALID_ARG The specified @c netConnection contains an invalid value.
79 * @exception E_OUT_OF_MEMORY The memory is insufficient.
80 * @exception E_SYSTEM An internal error has occurred.
81 * @exception E_INVALID_OPERATION The current state of the instance prohibits the execution of the specified operation, @n
82 * because the caller thread is a worker thread.
84 result Construct(const NetConnection& netConnection, IDnsEventListener& listener);
87 * Initializes this instance of %Dns with the specified listener.
91 * @return An error code
92 * @param[in] listener A reference to IDnsEventListener
93 * @exception E_SUCCESS The method is successful.
94 * @exception E_INVALID_CONNECTION The network connection is invalid.
95 * @exception E_OUT_OF_MEMORY The memory is insufficient.
96 * @exception E_SYSTEM An internal error has occurred.
97 * @exception E_INVALID_OPERATION The current state of the instance prohibits the execution of the specified operation, @n
98 * because the caller thread is a worker thread.
100 result Construct(IDnsEventListener& listener);
104 * Requests a DNS lookup by host name. @n
105 * This method is asynchronous.
110 * @privilege http://tizen.org/privilege/dns
112 * @return An error code
113 * @param[in] hostName The DNS name of the host
114 * @exception E_SUCCESS The method is successful.
115 * @exception E_INVALID_ARG The specified input parameter is invalid.
116 * @exception E_INVALID_CONNECTION The network connection is invalid.
117 * @exception E_OUT_OF_MEMORY The memory is insufficient.
118 * @exception E_NETWORK_UNAVAILABLE The network is unavailable.
119 * @exception E_CONNECTION_FAILED The network connection has failed.
120 * @exception E_OPERATION_FAILED Requested but an error is received while waiting for the response.
121 * @exception E_SYSTEM An internal error has occurred.
122 * @exception E_PRIVILEGE_DENIED The application does not have the privilege to call this method.
124 * @remarks Only one query is processed at a time in this instance.
125 * Multiple queries may be discarded.
127 result GetHostByName(const Tizen::Base::String& hostName);
130 * Requests a DNS lookup by IP address. @n
131 * This method is asynchronous.
136 * @privilege http://tizen.org/privilege/dns
138 * @return An error code
139 * @param[in] ipAddress An IP address
140 * @exception E_SUCCESS The method is successful.
141 * @exception E_INVALID_ARG The specified input parameter is invalid.
142 * @exception E_INVALID_CONNECTION The network connection is invalid.
143 * @exception E_OUT_OF_MEMORY The memory is insufficient.
144 * @exception E_NETWORK_UNAVAILABLE The network is unavailable.
145 * @exception E_CONNECTION_FAILED The network connection has failed.
146 * @exception E_OPERATION_FAILED Requested but an error is received while waiting for the response.
147 * @exception E_SYSTEM An internal error has occurred.
148 * @exception E_PRIVILEGE_DENIED The application does not have the privilege to call this method.
149 * @remarks Only one query is processed at a time in this instance.
150 * Multiple queries may be discarded.
152 result GetHostByAddress(const IpAddress& ipAddress);
156 * The implementation of this copy constructor is intentionally blank and declared as private to prohibit copying of objects.
158 * @param[in] rhs An instance of %Dns
163 * The implementation of this copy assignment operator is intentionally blank and declared as private to prohibit copying of objects.
165 * @param[in] rhs An instance of %Dns
167 Dns& operator =(const Dns& rhs);
170 _DnsImpl* __pDnsImpl;
172 friend class _DnsImpl;
177 #endif // _FNET_DNS_H_