/* Copyright (c) 2012 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 private/ppb_tcp_socket_private.idl modified Mon Jun 24 09:53:12 2013. */

#ifndef PPAPI_C_PRIVATE_PPB_TCP_SOCKET_PRIVATE_H_
#define PPAPI_C_PRIVATE_PPB_TCP_SOCKET_PRIVATE_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"
#include "ppapi/c/private/ppb_net_address_private.h"

#define PPB_TCPSOCKET_PRIVATE_INTERFACE_0_3 "PPB_TCPSocket_Private;0.3"
#define PPB_TCPSOCKET_PRIVATE_INTERFACE_0_4 "PPB_TCPSocket_Private;0.4"
#define PPB_TCPSOCKET_PRIVATE_INTERFACE_0_5 "PPB_TCPSocket_Private;0.5"
#define PPB_TCPSOCKET_PRIVATE_INTERFACE PPB_TCPSOCKET_PRIVATE_INTERFACE_0_5

/**
 * @file
 * This file defines the <code>PPB_TCPSocket_Private</code> interface.
 */


/**
 * @addtogroup Enums
 * @{
 */
typedef enum {
  /* Special value used for testing. Guaranteed to fail SetOption(). */
  PP_TCPSOCKETOPTION_PRIVATE_INVALID = 0,
  /* Disable coalescing of small writes to make TCP segments, and instead
   * deliver data immediately. For SSL sockets, this option must be set before
   * SSLHandshake() is called. Value type is PP_VARTYPE_BOOL. */
  PP_TCPSOCKETOPTION_PRIVATE_NO_DELAY = 1
} PP_TCPSocketOption_Private;
PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_TCPSocketOption_Private, 4);
/**
 * @}
 */

/**
 * @addtogroup Interfaces
 * @{
 */
/**
 * The <code>PPB_TCPSocket_Private</code> interface provides TCP socket
 * operations.
 */
struct PPB_TCPSocket_Private_0_5 {
  /**
   * Allocates a TCP socket resource.
   */
  PP_Resource (*Create)(PP_Instance instance);
  /**
   * Determines if a given resource is TCP socket.
   */
  PP_Bool (*IsTCPSocket)(PP_Resource resource);
  /**
   * Connects to a TCP port given as a host-port pair.
   * When a proxy server is used, |host| and |port| refer to the proxy server
   * instead of the destination server.
   */
  int32_t (*Connect)(PP_Resource tcp_socket,
                     const char* host,
                     uint16_t port,
                     struct PP_CompletionCallback callback);
  /**
   * Same as Connect(), but connecting to the address given by |addr|. A typical
   * use-case would be for reconnections.
   */
  int32_t (*ConnectWithNetAddress)(PP_Resource tcp_socket,
                                   const struct PP_NetAddress_Private* addr,
                                   struct PP_CompletionCallback callback);
  /**
   * Gets the local address of the socket, if it has been connected.
   * Returns PP_TRUE on success.
   */
  PP_Bool (*GetLocalAddress)(PP_Resource tcp_socket,
                             struct PP_NetAddress_Private* local_addr);
  /**
   * Gets the remote address of the socket, if it has been connected.
   * Returns PP_TRUE on success.
   */
  PP_Bool (*GetRemoteAddress)(PP_Resource tcp_socket,
                              struct PP_NetAddress_Private* remote_addr);
  /**
   * Does SSL handshake and moves to sending and receiving encrypted data. The
   * socket must have been successfully connected. |server_name| will be
   * compared with the name(s) in the server's certificate during the SSL
   * handshake. |server_port| is only used to identify an SSL server in the SSL
   * session cache.
   * When a proxy server is used, |server_name| and |server_port| refer to the
   * destination server.
   * If the socket is not connected, or there are pending read/write requests,
   * SSLHandshake() will fail without starting a handshake. Otherwise, any
   * failure during the handshake process will cause the socket to be
   * disconnected.
   */
  int32_t (*SSLHandshake)(PP_Resource tcp_socket,
                          const char* server_name,
                          uint16_t server_port,
                          struct PP_CompletionCallback callback);
  /**
   * Returns the server's <code>PPB_X509Certificate_Private</code> for a socket
   * connection if an SSL connection has been established using
   * <code>SSLHandshake</code>. If no SSL connection has been established, a
   * null resource is returned.
   */
  PP_Resource (*GetServerCertificate)(PP_Resource tcp_socket);
  /**
   * NOTE: This function is not implemented and will return
   * <code>PP_FALSE</code>.
   * Adds a trusted/untrusted chain building certificate to be used for this
   * connection. The <code>certificate</code> must be a
   * <code>PPB_X509Certificate_Private<code>. <code>PP_TRUE</code> is returned
   * upon success.
   */
  PP_Bool (*AddChainBuildingCertificate)(PP_Resource tcp_socket,
                                         PP_Resource certificate,
                                         PP_Bool is_trusted);
  /**
   * Reads data from the socket. The size of |buffer| must be at least as large
   * as |bytes_to_read|. May perform a partial read. Returns the number of bytes
   * read or an error code. If the return value is 0, then it indicates that
   * end-of-file was reached.
   * This method won't return more than 1 megabyte, so if |bytes_to_read|
   * exceeds 1 megabyte, it will always perform a partial read.
   * Multiple outstanding read requests are not supported.
   */
  int32_t (*Read)(PP_Resource tcp_socket,
                  char* buffer,
                  int32_t bytes_to_read,
                  struct PP_CompletionCallback callback);
  /**
   * Writes data to the socket. May perform a partial write. Returns the number
   * of bytes written or an error code.
   * This method won't write more than 1 megabyte, so if |bytes_to_write|
   * exceeds 1 megabyte, it will always perform a partial write.
   * Multiple outstanding write requests are not supported.
   */
  int32_t (*Write)(PP_Resource tcp_socket,
                   const char* buffer,
                   int32_t bytes_to_write,
                   struct PP_CompletionCallback callback);
  /**
   * Cancels any IO that may be pending, and disconnects the socket. Any pending
   * callbacks will still run, reporting PP_Error_Aborted if pending IO was
   * interrupted. It is NOT valid to call Connect() again after a call to this
   * method. Note: If the socket is destroyed when it is still connected, then
   * it will be implicitly disconnected, so you are not required to call this
   * method.
   */
  void (*Disconnect)(PP_Resource tcp_socket);
  /**
   * Sets an option on |tcp_socket|.  Supported |name| and |value| parameters
   * are as described for PP_TCPSocketOption_Private.  |callback| will be
   * invoked with PP_OK if setting the option succeeds, or an error code
   * otherwise. The socket must be connection before SetOption is called.
   */
  int32_t (*SetOption)(PP_Resource tcp_socket,
                       PP_TCPSocketOption_Private name,
                       struct PP_Var value,
                       struct PP_CompletionCallback callback);
};

typedef struct PPB_TCPSocket_Private_0_5 PPB_TCPSocket_Private;

struct PPB_TCPSocket_Private_0_3 {
  PP_Resource (*Create)(PP_Instance instance);
  PP_Bool (*IsTCPSocket)(PP_Resource resource);
  int32_t (*Connect)(PP_Resource tcp_socket,
                     const char* host,
                     uint16_t port,
                     struct PP_CompletionCallback callback);
  int32_t (*ConnectWithNetAddress)(PP_Resource tcp_socket,
                                   const struct PP_NetAddress_Private* addr,
                                   struct PP_CompletionCallback callback);
  PP_Bool (*GetLocalAddress)(PP_Resource tcp_socket,
                             struct PP_NetAddress_Private* local_addr);
  PP_Bool (*GetRemoteAddress)(PP_Resource tcp_socket,
                              struct PP_NetAddress_Private* remote_addr);
  int32_t (*SSLHandshake)(PP_Resource tcp_socket,
                          const char* server_name,
                          uint16_t server_port,
                          struct PP_CompletionCallback callback);
  int32_t (*Read)(PP_Resource tcp_socket,
                  char* buffer,
                  int32_t bytes_to_read,
                  struct PP_CompletionCallback callback);
  int32_t (*Write)(PP_Resource tcp_socket,
                   const char* buffer,
                   int32_t bytes_to_write,
                   struct PP_CompletionCallback callback);
  void (*Disconnect)(PP_Resource tcp_socket);
};

struct PPB_TCPSocket_Private_0_4 {
  PP_Resource (*Create)(PP_Instance instance);
  PP_Bool (*IsTCPSocket)(PP_Resource resource);
  int32_t (*Connect)(PP_Resource tcp_socket,
                     const char* host,
                     uint16_t port,
                     struct PP_CompletionCallback callback);
  int32_t (*ConnectWithNetAddress)(PP_Resource tcp_socket,
                                   const struct PP_NetAddress_Private* addr,
                                   struct PP_CompletionCallback callback);
  PP_Bool (*GetLocalAddress)(PP_Resource tcp_socket,
                             struct PP_NetAddress_Private* local_addr);
  PP_Bool (*GetRemoteAddress)(PP_Resource tcp_socket,
                              struct PP_NetAddress_Private* remote_addr);
  int32_t (*SSLHandshake)(PP_Resource tcp_socket,
                          const char* server_name,
                          uint16_t server_port,
                          struct PP_CompletionCallback callback);
  PP_Resource (*GetServerCertificate)(PP_Resource tcp_socket);
  PP_Bool (*AddChainBuildingCertificate)(PP_Resource tcp_socket,
                                         PP_Resource certificate,
                                         PP_Bool is_trusted);
  int32_t (*Read)(PP_Resource tcp_socket,
                  char* buffer,
                  int32_t bytes_to_read,
                  struct PP_CompletionCallback callback);
  int32_t (*Write)(PP_Resource tcp_socket,
                   const char* buffer,
                   int32_t bytes_to_write,
                   struct PP_CompletionCallback callback);
  void (*Disconnect)(PP_Resource tcp_socket);
};
/**
 * @}
 */

#endif  /* PPAPI_C_PRIVATE_PPB_TCP_SOCKET_PRIVATE_H_ */

