Introduce PPB_UDPSocket_Dev.

ppapi/c/dev/ppb_udp_socket_dev.h

+/* Copyright (c) 2013 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* From dev/ppb_udp_socket_dev.idl modified Thu Jun 13 09:38:45 2013. */
+
+#ifndef PPAPI_C_DEV_PPB_UDP_SOCKET_DEV_H_
+#define PPAPI_C_DEV_PPB_UDP_SOCKET_DEV_H_
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_completion_callback.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_resource.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/pp_var.h"
+
+#define PPB_UDPSOCKET_DEV_INTERFACE_0_1 "PPB_UDPSocket(Dev);0.1"
+#define PPB_UDPSOCKET_DEV_INTERFACE PPB_UDPSOCKET_DEV_INTERFACE_0_1
+
+/**
+ * @file
+ * This file defines the <code>PPB_UDPSocket_Dev</code> interface.
+ * TODO(yzshen): Tidy up the document.
+ */
+
+
+/**
+ * @addtogroup Enums
+ * @{
+ */
+typedef enum {
+  /* Allows the socket to share the local address to which it will be bound with
+   * other processes. Value's type should be PP_VARTYPE_BOOL. */
+  PP_UDPSOCKET_OPTION_ADDRESS_REUSE = 0,
+  /* Allows sending and receiving packets to and from broadcast addresses.
+   * Value's type should be PP_VARTYPE_BOOL. */
+  PP_UDPSOCKET_OPTION_BROADCAST = 1,
+  /* Specifies the total per-socket buffer space reserved for sends. Value's
+   * type should be PP_VARTYPE_INT32.
+   * Note: This is only treated as a hint for the browser to set the buffer
+   * size. Even if SetOption() reports that this option has been successfully
+   * set, the browser doesn't guarantee it will conform to it. */
+  PP_UDPSOCKET_OPTION_SEND_BUFFER_SIZE = 2,
+  /* Specifies the total per-socket buffer space reserved for receives. Value's
+   * type should be PP_VARTYPE_INT32.
+   * Note: This is only treated as a hint for the browser to set the buffer
+   * size. Even if SetOption() reports that this option has been successfully
+   * set, the browser doesn't guarantee it will conform to it. */
+  PP_UDPSOCKET_OPTION_RECV_BUFFER_SIZE = 3
+} PP_UDPSocket_Option_Dev;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_UDPSocket_Option_Dev, 4);
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup Interfaces
+ * @{
+ */
+struct PPB_UDPSocket_Dev_0_1 {
+  /**
+   * Creates a UDP socket resource.
+   */
+  PP_Resource (*Create)(PP_Instance instance);
+  /**
+   * Determines if a given resource is a UDP socket.
+   */
+  PP_Bool (*IsUDPSocket)(PP_Resource resource);
+  /**
+   * Binds to the address given by |addr|, which is a PPB_NetAddress_Dev
+   * resource.
+   */
+  int32_t (*Bind)(PP_Resource udp_socket,
+                  PP_Resource addr,
+                  struct PP_CompletionCallback callback);
+  /**
+   * Returns the address that the socket has bound to, as a PPB_NetAddress_Dev
+   * resource.  Bind must be called and succeed first. Returns 0 if Bind fails,
+   * or if Close has been called.
+   */
+  PP_Resource (*GetBoundAddress)(PP_Resource udp_socket);
+  /**
+   * Performs a non-blocking recvfrom call on socket.
+   * Bind must be called first. |callback| is invoked when recvfrom reads data.
+   * |addr| will store a PPB_NetAddress_Dev resource on success.
+   */
+  int32_t (*RecvFrom)(PP_Resource udp_socket,
+                      char* buffer,
+                      int32_t num_bytes,
+                      PP_Resource* addr,
+                      struct PP_CompletionCallback callback);
+  /**
+   * Performs a non-blocking sendto call on the socket.
+   * Bind must be called first. |addr| is a PPB_NetAddress_Dev resource holding
+   * the target address. |callback| is invoked when sendto completes.
+   */
+  int32_t (*SendTo)(PP_Resource udp_socket,
+                    const char* buffer,
+                    int32_t num_bytes,
+                    PP_Resource addr,
+                    struct PP_CompletionCallback callback);
+  /**
+   * Cancels all pending reads and writes, and closes the socket.
+   */
+  void (*Close)(PP_Resource udp_socket);
+  /**
+   * Sets a socket option to |udp_socket|. Should be called before Bind().
+   * See the PP_UDPSocket_Option_Dev description for option names, value types
+   * and allowed values.
+   * Returns PP_OK on success. Otherwise, returns PP_ERROR_BADRESOURCE (if bad
+   * |udp_socket| provided), PP_ERROR_BADARGUMENT (if bad name/value/value's
+   * type provided) or PP_ERROR_FAILED in the case of internal errors.
+   */
+  int32_t (*SetOption)(PP_Resource udp_socket,
+                       PP_UDPSocket_Option_Dev name,
+                       struct PP_Var value,
+                       struct PP_CompletionCallback callback);
+};
+
+typedef struct PPB_UDPSocket_Dev_0_1 PPB_UDPSocket_Dev;
+/**
+ * @}
+ */
+
+#endif  /* PPAPI_C_DEV_PPB_UDP_SOCKET_DEV_H_ */
+