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      1 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2  * Use of this source code is governed by a BSD-style license that can be
      3  * found in the LICENSE file.
      4  */
      5 
      6 /**
      7  * This file defines the <code>PPB_UDPSocket_Private</code> interface.
      8  */
      9 
     10 label Chrome {
     11   M17 = 0.2,
     12   M19 = 0.3,
     13   M23 = 0.4
     14 };
     15 
     16 [assert_size(4)]
     17 enum PP_UDPSocketFeature_Private {
     18   // Allow the socket to share the local address to which socket will
     19   // be bound with other processes. Value's type should be
     20   // PP_VARTYPE_BOOL.
     21   PP_UDPSOCKETFEATURE_PRIVATE_ADDRESS_REUSE = 0,
     22 
     23   // Allow sending and receiving packets sent to and from broadcast
     24   // addresses. Value's type should be PP_VARTYPE_BOOL.
     25   PP_UDPSOCKETFEATURE_PRIVATE_BROADCAST = 1,
     26 
     27   // Special value for counting the number of available
     28   // features. Should not be passed to SetSocketFeature().
     29   PP_UDPSOCKETFEATURE_PRIVATE_COUNT = 2
     30 };
     31 
     32 interface PPB_UDPSocket_Private {
     33   /**
     34    * Creates a UDP socket resource.
     35    */
     36   PP_Resource Create([in] PP_Instance instance_id);
     37 
     38   /**
     39    * Determines if a given resource is a UDP socket.
     40    */
     41   PP_Bool IsUDPSocket([in] PP_Resource resource_id);
     42 
     43   /**
     44    * Sets a socket feature to |udp_socket|. Should be called before
     45    * Bind(). Possible values for |name|, |value| and |value|'s type
     46    * are described in PP_UDPSocketFeature_Private description. If no
     47    * error occurs, returns PP_OK. Otherwise, returns
     48    * PP_ERROR_BADRESOURCE (if bad |udp_socket| provided),
     49    * PP_ERROR_BADARGUMENT (if bad name/value/value's type provided)
     50    * or PP_ERROR_FAILED in the case of internal errors.
     51    */
     52   [version=0.4]
     53   int32_t SetSocketFeature([in] PP_Resource udp_socket,
     54                            [in] PP_UDPSocketFeature_Private name,
     55                            [in] PP_Var value);
     56 
     57   /* Creates a socket and binds to the address given by |addr|. */
     58   int32_t Bind([in] PP_Resource udp_socket,
     59                [in] PP_NetAddress_Private addr,
     60                [in] PP_CompletionCallback callback);
     61 
     62   /* Returns the address that the socket has bound to.  A successful
     63    * call to Bind must be called first. Returns PP_FALSE if Bind
     64    * fails, or if Close has been called.
     65    */
     66   [version=0.3]
     67   PP_Bool GetBoundAddress([in] PP_Resource udp_socket,
     68                           [out] PP_NetAddress_Private addr);
     69 
     70   /* Performs a non-blocking recvfrom call on socket.
     71    * Bind must be called first. |callback| is invoked when recvfrom
     72    * reads data.  You must call GetRecvFromAddress to recover the
     73    * address the data was retrieved from.
     74    */
     75   int32_t RecvFrom([in] PP_Resource udp_socket,
     76                    [out] str_t buffer,
     77                    [in] int32_t num_bytes,
     78                    [in] PP_CompletionCallback callback);
     79 
     80   /* Upon successful completion of RecvFrom, the address that the data
     81    * was received from is stored in |addr|.
     82    */
     83   PP_Bool GetRecvFromAddress([in] PP_Resource udp_socket,
     84                              [out] PP_NetAddress_Private addr);
     85 
     86   /* Performs a non-blocking sendto call on the socket created and
     87    * bound(has already called Bind).  The callback |callback| is
     88    * invoked when sendto completes.
     89    */
     90   int32_t SendTo([in] PP_Resource udp_socket,
     91                  [in] str_t buffer,
     92                  [in] int32_t num_bytes,
     93                  [in] PP_NetAddress_Private addr,
     94                  [in] PP_CompletionCallback callback);
     95 
     96   /* Cancels all pending reads and writes, and closes the socket. */
     97   void Close([in] PP_Resource udp_socket);
     98 };
     99