DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

NetworkStack.h@114:964eba6394bc, 2016-04-20 (annotated)

Committer:
Christopher Haster
Date:
Wed Apr 20 11:07:19 2016 -0500
Revision:
114:964eba6394bc
Parent:
112:e0cbb3e43c20
Child:
123:556a038fdf63
Move get_mac_address into Interface interface

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 105:2fd212f8da61 1 /* NetworkStack
Christopher Haster 105:2fd212f8da61 2 * Copyright (c) 2015 ARM Limited
Christopher Haster 105:2fd212f8da61 3 *
Christopher Haster 105:2fd212f8da61 4 * Licensed under the Apache License, Version 2.0 (the "License");
Christopher Haster 105:2fd212f8da61 5 * you may not use this file except in compliance with the License.
Christopher Haster 105:2fd212f8da61 6 * You may obtain a copy of the License at
Christopher Haster 105:2fd212f8da61 7 *
Christopher Haster 105:2fd212f8da61 8 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 105:2fd212f8da61 9 *
Christopher Haster 105:2fd212f8da61 10 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 105:2fd212f8da61 11 * distributed under the License is distributed on an "AS IS" BASIS,
Christopher Haster 105:2fd212f8da61 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 105:2fd212f8da61 13 * See the License for the specific language governing permissions and
Christopher Haster 105:2fd212f8da61 14 * limitations under the License.
Christopher Haster 105:2fd212f8da61 15 */
Christopher Haster 105:2fd212f8da61 16
Christopher Haster 105:2fd212f8da61 17 #ifndef NETWORK_INTERFACE_H
Christopher Haster 105:2fd212f8da61 18 #define NETWORK_INTERFACE_H
Christopher Haster 105:2fd212f8da61 19
Christopher Haster 105:2fd212f8da61 20 #include "mbed.h"
Christopher Haster 105:2fd212f8da61 21 #include "SocketAddress.h"
Christopher Haster 105:2fd212f8da61 22
Christopher Haster 105:2fd212f8da61 23
Christopher Haster 105:2fd212f8da61 24 /** Enum of standardized error codes
Christopher Haster 105:2fd212f8da61 25 *
Christopher Haster 105:2fd212f8da61 26 * Valid error codes have negative values and may
Christopher Haster 105:2fd212f8da61 27 * be returned by any network operation.
Christopher Haster 105:2fd212f8da61 28 *
Christopher Haster 105:2fd212f8da61 29 * @enum nsapi_error_t
Christopher Haster 105:2fd212f8da61 30 */
Christopher Haster 105:2fd212f8da61 31 enum nsapi_error_t {
Christopher Haster 105:2fd212f8da61 32 NSAPI_ERROR_WOULD_BLOCK = -3001, /*!< no data is not available but call is non-blocking */
Christopher Haster 105:2fd212f8da61 33 NSAPI_ERROR_UNSUPPORTED = -3002, /*!< unsupported configuration */
Christopher Haster 105:2fd212f8da61 34 NSAPI_ERROR_NO_CONNECTION = -3003, /*!< not connected to a network */
Christopher Haster 105:2fd212f8da61 35 NSAPI_ERROR_NO_SOCKET = -3004, /*!< socket not available for use */
Christopher Haster 105:2fd212f8da61 36 NSAPI_ERROR_NO_ADDRESS = -3005, /*!< IP address is not known */
Christopher Haster 105:2fd212f8da61 37 NSAPI_ERROR_NO_MEMORY = -3006, /*!< memory resource not available */
Christopher Haster 105:2fd212f8da61 38 NSAPI_ERROR_DNS_FAILURE = -3007, /*!< DNS failed to complete successfully */
Christopher Haster 105:2fd212f8da61 39 NSAPI_ERROR_DHCP_FAILURE = -3008, /*!< DHCP failed to complete successfully */
Christopher Haster 105:2fd212f8da61 40 NSAPI_ERROR_AUTH_FAILURE = -3009, /*!< connection to access point faield */
Christopher Haster 105:2fd212f8da61 41 NSAPI_ERROR_DEVICE_ERROR = -3010, /*!< failure interfacing with the network procesor */
Christopher Haster 105:2fd212f8da61 42 };
Christopher Haster 105:2fd212f8da61 43
Christopher Haster 105:2fd212f8da61 44 /** Enum of socket protocols
Christopher Haster 105:2fd212f8da61 45 *
Christopher Haster 105:2fd212f8da61 46 * The socket protocol specifies a particular protocol to
Christopher Haster 105:2fd212f8da61 47 * be used with a newly created socket.
Christopher Haster 105:2fd212f8da61 48 *
Christopher Haster 105:2fd212f8da61 49 * @enum nsapi_protocol_t
Christopher Haster 105:2fd212f8da61 50 */
Christopher Haster 105:2fd212f8da61 51 enum nsapi_protocol_t {
Christopher Haster 105:2fd212f8da61 52 NSAPI_TCP, /*!< Socket is of TCP type */
Christopher Haster 105:2fd212f8da61 53 NSAPI_UDP, /*!< Socket is of UDP type */
Christopher Haster 105:2fd212f8da61 54 };
Christopher Haster 105:2fd212f8da61 55
Christopher Haster 112:e0cbb3e43c20 56 /* Enum of standardized stack option levels
Christopher Haster 112:e0cbb3e43c20 57 *
Christopher Haster 112:e0cbb3e43c20 58 * @enum nsapi_level_t
Christopher Haster 112:e0cbb3e43c20 59 */
Christopher Haster 112:e0cbb3e43c20 60 enum nsapi_level_t {
Christopher Haster 112:e0cbb3e43c20 61 NSAPI_STACK, /*!< Stack option level */
Christopher Haster 112:e0cbb3e43c20 62 NSAPI_SOCKET, /*!< Socket option level */
Christopher Haster 112:e0cbb3e43c20 63 };
Christopher Haster 112:e0cbb3e43c20 64
Christopher Haster 112:e0cbb3e43c20 65 /* Enum of standardized stack options
Christopher Haster 112:e0cbb3e43c20 66 *
Christopher Haster 112:e0cbb3e43c20 67 * These options may not be supported on all stacks, in which
Christopher Haster 112:e0cbb3e43c20 68 * case NSAPI_ERROR_UNSUPPORTED may be returned from setsockopt.
Christopher Haster 112:e0cbb3e43c20 69 *
Christopher Haster 112:e0cbb3e43c20 70 * @enum nsapi_option_t
Christopher Haster 112:e0cbb3e43c20 71 */
Christopher Haster 112:e0cbb3e43c20 72 enum nsapi_option_t {
Christopher Haster 112:e0cbb3e43c20 73 NSAPI_REUSEADDR, /*!< Allow bind to reuse local addresses */
Christopher Haster 112:e0cbb3e43c20 74 NSAPI_KEEPALIVE, /*!< Enables sending of keepalive messages */
Christopher Haster 112:e0cbb3e43c20 75 NSAPI_LINGER, /*!< Keeps close from returning until queues empty */
Christopher Haster 112:e0cbb3e43c20 76 NSAPI_SNDBUF, /*!< Sets send buffer size */
Christopher Haster 112:e0cbb3e43c20 77 NSAPI_RCVBUF, /*!< Sets recv buffer size */
Christopher Haster 112:e0cbb3e43c20 78 };
Christopher Haster 112:e0cbb3e43c20 79
Christopher Haster 105:2fd212f8da61 80
Christopher Haster 105:2fd212f8da61 81 /** NetworkStack class
Christopher Haster 105:2fd212f8da61 82 *
Christopher Haster 105:2fd212f8da61 83 * Common interface that is shared between hardware that
Christopher Haster 105:2fd212f8da61 84 * can connect to a network over IP. By implementing the
Christopher Haster 105:2fd212f8da61 85 * NetworkStack, a network stack can be used as a target
Christopher Haster 105:2fd212f8da61 86 * for instantiating network sockets.
Christopher Haster 105:2fd212f8da61 87 */
Christopher Haster 105:2fd212f8da61 88 class NetworkStack
Christopher Haster 105:2fd212f8da61 89 {
Christopher Haster 105:2fd212f8da61 90 public:
Christopher Haster 105:2fd212f8da61 91 virtual ~NetworkStack() {};
Christopher Haster 105:2fd212f8da61 92
Christopher Haster 105:2fd212f8da61 93 /** Get the local IP address
Christopher Haster 105:2fd212f8da61 94 *
Christopher Haster 105:2fd212f8da61 95 * @return Null-terminated representation of the local IP address
Christopher Haster 105:2fd212f8da61 96 * or null if not yet connected
Christopher Haster 105:2fd212f8da61 97 */
Christopher Haster 105:2fd212f8da61 98 virtual const char *get_ip_address() = 0;
Christopher Haster 105:2fd212f8da61 99
Christopher Haster 105:2fd212f8da61 100 /** Translates a hostname to an IP address
Christopher Haster 105:2fd212f8da61 101 *
Christopher Haster 105:2fd212f8da61 102 * The hostname may be either a domain name or an IP address. If the
Christopher Haster 105:2fd212f8da61 103 * hostname is an IP address, no network transactions will be performed.
Christopher Haster 105:2fd212f8da61 104 *
Christopher Haster 105:2fd212f8da61 105 * If no stack-specific DNS resolution is provided, the hostname
Christopher Haster 105:2fd212f8da61 106 * will be resolve using a UDP socket on the stack.
Christopher Haster 105:2fd212f8da61 107 *
Christopher Haster 105:2fd212f8da61 108 * @param address Destination for the host SocketAddress
Christopher Haster 105:2fd212f8da61 109 * @param host Hostname to resolve
Christopher Haster 105:2fd212f8da61 110 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 111 */
Christopher Haster 105:2fd212f8da61 112 virtual int gethostbyname(SocketAddress *address, const char *host);
Christopher Haster 105:2fd212f8da61 113
Christopher Haster 105:2fd212f8da61 114 /* Set stack-specific stack options
Christopher Haster 105:2fd212f8da61 115 *
Christopher Haster 105:2fd212f8da61 116 * The setstackopt allow an application to pass stack-specific hints
Christopher Haster 105:2fd212f8da61 117 * to the underlying stack. For unsupported options,
Christopher Haster 105:2fd212f8da61 118 * NSAPI_ERROR_UNSUPPORTED is returned and the stack is unmodified.
Christopher Haster 105:2fd212f8da61 119 *
Christopher Haster 105:2fd212f8da61 120 * @param level Stack-specific protocol level
Christopher Haster 105:2fd212f8da61 121 * @param optname Stack-specific option identifier
Christopher Haster 105:2fd212f8da61 122 * @param optval Option value
Christopher Haster 105:2fd212f8da61 123 * @param optlen Length of the option value
Christopher Haster 105:2fd212f8da61 124 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 125 */
Christopher Haster 105:2fd212f8da61 126 virtual int setstackopt(int level, int optname, const void *optval, unsigned optlen);
Christopher Haster 105:2fd212f8da61 127
Christopher Haster 105:2fd212f8da61 128 /* Get stack-specific stack options
Christopher Haster 105:2fd212f8da61 129 *
Christopher Haster 105:2fd212f8da61 130 * The getstackopt allow an application to retrieve stack-specific hints
Christopher Haster 105:2fd212f8da61 131 * from the underlying stack. For unsupported options,
Christopher Haster 105:2fd212f8da61 132 * NSAPI_ERROR_UNSUPPORTED is returned and optval is unmodified.
Christopher Haster 105:2fd212f8da61 133 *
Christopher Haster 105:2fd212f8da61 134 * @param level Stack-specific protocol level
Christopher Haster 105:2fd212f8da61 135 * @param optname Stack-specific option identifier
Christopher Haster 105:2fd212f8da61 136 * @param optval Destination for option value
Christopher Haster 105:2fd212f8da61 137 * @param optlen Length of the option value
Christopher Haster 105:2fd212f8da61 138 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 139 */
Christopher Haster 105:2fd212f8da61 140 virtual int getstackopt(int level, int optname, void *optval, unsigned *optlen);
Christopher Haster 105:2fd212f8da61 141
Christopher Haster 105:2fd212f8da61 142 protected:
Christopher Haster 105:2fd212f8da61 143 friend class Socket;
Christopher Haster 105:2fd212f8da61 144 friend class UDPSocket;
Christopher Haster 105:2fd212f8da61 145 friend class TCPSocket;
Christopher Haster 105:2fd212f8da61 146 friend class TCPServer;
Christopher Haster 105:2fd212f8da61 147
Christopher Haster 105:2fd212f8da61 148 /** Opens a socket
Christopher Haster 105:2fd212f8da61 149 *
Christopher Haster 105:2fd212f8da61 150 * Creates a network socket and stores it in the specified handle.
Christopher Haster 105:2fd212f8da61 151 * The handle must be passed to following calls on the socket.
Christopher Haster 105:2fd212f8da61 152 *
Christopher Haster 105:2fd212f8da61 153 * A stack may have a finite number of sockets, in this case
Christopher Haster 105:2fd212f8da61 154 * NSAPI_ERROR_NO_SOCKET is returned if no socket is available.
Christopher Haster 105:2fd212f8da61 155 *
Christopher Haster 105:2fd212f8da61 156 * @param handle Destination for the handle to a newly created socket
Christopher Haster 105:2fd212f8da61 157 * @param proto Protocol of socket to open, NSAPI_TCP or NSAPI_UDP
Christopher Haster 105:2fd212f8da61 158 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 159 */
Christopher Haster 105:2fd212f8da61 160 virtual int socket_open(void **handle, nsapi_protocol_t proto) = 0;
Christopher Haster 105:2fd212f8da61 161
Christopher Haster 105:2fd212f8da61 162 /** Close the socket
Christopher Haster 105:2fd212f8da61 163 *
Christopher Haster 105:2fd212f8da61 164 * Closes any open connection and deallocates any memory associated
Christopher Haster 105:2fd212f8da61 165 * with the socket.
Christopher Haster 105:2fd212f8da61 166 *
Christopher Haster 105:2fd212f8da61 167 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 168 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 169 */
Christopher Haster 105:2fd212f8da61 170 virtual int socket_close(void *handle) = 0;
Christopher Haster 105:2fd212f8da61 171
Christopher Haster 105:2fd212f8da61 172 /** Bind a specific address to a socket
Christopher Haster 105:2fd212f8da61 173 *
Christopher Haster 105:2fd212f8da61 174 * Binding a socket specifies the address and port on which to recieve
Christopher Haster 105:2fd212f8da61 175 * data. If the IP address is zeroed, only the port is bound.
Christopher Haster 105:2fd212f8da61 176 *
Christopher Haster 105:2fd212f8da61 177 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 178 * @param address Local address to bind
Christopher Haster 105:2fd212f8da61 179 * @return 0 on success, negative error code on failure.
Christopher Haster 105:2fd212f8da61 180 */
Christopher Haster 105:2fd212f8da61 181 virtual int socket_bind(void *handle, const SocketAddress &address) = 0;
Christopher Haster 105:2fd212f8da61 182
Christopher Haster 105:2fd212f8da61 183 /** Listen for connections on a TCP socket
Christopher Haster 105:2fd212f8da61 184 *
Christopher Haster 105:2fd212f8da61 185 * Marks the socket as a passive socket that can be used to accept
Christopher Haster 105:2fd212f8da61 186 * incoming connections.
Christopher Haster 105:2fd212f8da61 187 *
Christopher Haster 105:2fd212f8da61 188 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 189 * @param backlog Number of pending connections that can be queued
Christopher Haster 105:2fd212f8da61 190 * simultaneously
Christopher Haster 105:2fd212f8da61 191 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 192 */
Christopher Haster 105:2fd212f8da61 193 virtual int socket_listen(void *handle, int backlog) = 0;
Christopher Haster 105:2fd212f8da61 194
Christopher Haster 105:2fd212f8da61 195 /** Connects TCP socket to a remote host
Christopher Haster 105:2fd212f8da61 196 *
Christopher Haster 105:2fd212f8da61 197 * Initiates a connection to a remote server specified by the
Christopher Haster 105:2fd212f8da61 198 * indicated address.
Christopher Haster 105:2fd212f8da61 199 *
Christopher Haster 105:2fd212f8da61 200 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 201 * @param address The SocketAddress of the remote host
Christopher Haster 105:2fd212f8da61 202 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 203 */
Christopher Haster 105:2fd212f8da61 204 virtual int socket_connect(void *handle, const SocketAddress &address) = 0;
Christopher Haster 105:2fd212f8da61 205
Christopher Haster 105:2fd212f8da61 206 /** Accepts a connection on a TCP socket
Christopher Haster 105:2fd212f8da61 207 *
Christopher Haster 105:2fd212f8da61 208 * The server socket must be bound and set to listen for connections.
Christopher Haster 105:2fd212f8da61 209 * On a new connection, creates a network socket and stores it in the
Christopher Haster 105:2fd212f8da61 210 * specified handle. The handle must be passed to following calls on
Christopher Haster 105:2fd212f8da61 211 * the socket.
Christopher Haster 105:2fd212f8da61 212 *
Christopher Haster 105:2fd212f8da61 213 * A stack may have a finite number of sockets, in this case
Christopher Haster 105:2fd212f8da61 214 * NSAPI_ERROR_NO_SOCKET is returned if no socket is available.
Christopher Haster 105:2fd212f8da61 215 *
Christopher Haster 105:2fd212f8da61 216 * This call is non-blocking. If accept would block,
Christopher Haster 105:2fd212f8da61 217 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 105:2fd212f8da61 218 *
Christopher Haster 105:2fd212f8da61 219 * @param handle Destination for a handle to the newly created sockey
Christopher Haster 105:2fd212f8da61 220 * @param server Socket handle to server to accept from
Christopher Haster 105:2fd212f8da61 221 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 222 */
Christopher Haster 105:2fd212f8da61 223 virtual int socket_accept(void **handle, void *server) = 0;
Christopher Haster 105:2fd212f8da61 224
Christopher Haster 105:2fd212f8da61 225 /** Send data over a TCP socket
Christopher Haster 105:2fd212f8da61 226 *
Christopher Haster 105:2fd212f8da61 227 * The socket must be connected to a remote host. Returns the number of
Christopher Haster 105:2fd212f8da61 228 * bytes sent from the buffer.
Christopher Haster 105:2fd212f8da61 229 *
Christopher Haster 105:2fd212f8da61 230 * This call is non-blocking. If send would block,
Christopher Haster 105:2fd212f8da61 231 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 105:2fd212f8da61 232 *
Christopher Haster 105:2fd212f8da61 233 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 234 * @param data Buffer of data to send to the host
Christopher Haster 105:2fd212f8da61 235 * @param size Size of the buffer in bytes
Christopher Haster 105:2fd212f8da61 236 * @return Number of sent bytes on success, negative error
Christopher Haster 105:2fd212f8da61 237 * code on failure
Christopher Haster 105:2fd212f8da61 238 */
Christopher Haster 105:2fd212f8da61 239 virtual int socket_send(void *handle, const void *data, unsigned size) = 0;
Christopher Haster 105:2fd212f8da61 240
Christopher Haster 105:2fd212f8da61 241 /** Receive data over a TCP socket
Christopher Haster 105:2fd212f8da61 242 *
Christopher Haster 105:2fd212f8da61 243 * The socket must be connected to a remote host. Returns the number of
Christopher Haster 105:2fd212f8da61 244 * bytes received into the buffer.
Christopher Haster 105:2fd212f8da61 245 *
Christopher Haster 105:2fd212f8da61 246 * This call is non-blocking. If recv would block,
Christopher Haster 105:2fd212f8da61 247 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 105:2fd212f8da61 248 *
Christopher Haster 105:2fd212f8da61 249 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 250 * @param data Destination buffer for data received from the host
Christopher Haster 105:2fd212f8da61 251 * @param size Size of the buffer in bytes
Christopher Haster 105:2fd212f8da61 252 * @return Number of received bytes on success, negative error
Christopher Haster 105:2fd212f8da61 253 * code on failure
Christopher Haster 105:2fd212f8da61 254 */
Christopher Haster 105:2fd212f8da61 255 virtual int socket_recv(void *handle, void *data, unsigned size) = 0;
Christopher Haster 105:2fd212f8da61 256
Christopher Haster 105:2fd212f8da61 257 /** Send a packet over a UDP socket
Christopher Haster 105:2fd212f8da61 258 *
Christopher Haster 105:2fd212f8da61 259 * Sends data to the specified address. Returns the number of bytes
Christopher Haster 105:2fd212f8da61 260 * sent from the buffer.
Christopher Haster 105:2fd212f8da61 261 *
Christopher Haster 105:2fd212f8da61 262 * This call is non-blocking. If sendto would block,
Christopher Haster 105:2fd212f8da61 263 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 105:2fd212f8da61 264 *
Christopher Haster 105:2fd212f8da61 265 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 266 * @param address The SocketAddress of the remote host
Christopher Haster 105:2fd212f8da61 267 * @param data Buffer of data to send to the host
Christopher Haster 105:2fd212f8da61 268 * @param size Size of the buffer in bytes
Christopher Haster 105:2fd212f8da61 269 * @return Number of sent bytes on success, negative error
Christopher Haster 105:2fd212f8da61 270 * code on failure
Christopher Haster 105:2fd212f8da61 271 */
Christopher Haster 105:2fd212f8da61 272 virtual int socket_sendto(void *handle, const SocketAddress &address, const void *data, unsigned size) = 0;
Christopher Haster 105:2fd212f8da61 273
Christopher Haster 105:2fd212f8da61 274 /** Receive a packet over a UDP socket
Christopher Haster 105:2fd212f8da61 275 *
Christopher Haster 105:2fd212f8da61 276 * Receives data and stores the source address in address if address
Christopher Haster 105:2fd212f8da61 277 * is not NULL. Returns the number of bytes received into the buffer.
Christopher Haster 105:2fd212f8da61 278 *
Christopher Haster 105:2fd212f8da61 279 * This call is non-blocking. If recvfrom would block,
Christopher Haster 105:2fd212f8da61 280 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 105:2fd212f8da61 281 *
Christopher Haster 105:2fd212f8da61 282 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 283 * @param address Destination for the source address or NULL
Christopher Haster 105:2fd212f8da61 284 * @param data Destination buffer for data received from the host
Christopher Haster 105:2fd212f8da61 285 * @param size Size of the buffer in bytes
Christopher Haster 105:2fd212f8da61 286 * @return Number of received bytes on success, negative error
Christopher Haster 105:2fd212f8da61 287 * code on failure
Christopher Haster 105:2fd212f8da61 288 */
Christopher Haster 105:2fd212f8da61 289 virtual int socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size) = 0;
Christopher Haster 105:2fd212f8da61 290
Christopher Haster 105:2fd212f8da61 291 /** Register a callback on state change of the socket
Christopher Haster 105:2fd212f8da61 292 *
Christopher Haster 105:2fd212f8da61 293 * The specified callback will be called on state changes such as when
Christopher Haster 105:2fd212f8da61 294 * the socket can recv/send/accept successfully and on when an error
Christopher Haster 105:2fd212f8da61 295 * occurs. The callback may also be called spuriously without reason.
Christopher Haster 105:2fd212f8da61 296 *
Christopher Haster 105:2fd212f8da61 297 * The callback may be called in an interrupt context and should not
Christopher Haster 105:2fd212f8da61 298 * perform expensive operations such as recv/send calls.
Christopher Haster 105:2fd212f8da61 299 *
Christopher Haster 105:2fd212f8da61 300 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 301 * @param callback Function to call on state change
Christopher Haster 105:2fd212f8da61 302 * @param data Argument to pass to callback
Christopher Haster 105:2fd212f8da61 303 */
Christopher Haster 105:2fd212f8da61 304 virtual void socket_attach(void *handle, void (*callback)(void *), void *data) = 0;
Christopher Haster 105:2fd212f8da61 305
Christopher Haster 105:2fd212f8da61 306 /* Set stack-specific socket options
Christopher Haster 105:2fd212f8da61 307 *
Christopher Haster 105:2fd212f8da61 308 * The setsockopt allow an application to pass stack-specific hints
Christopher Haster 105:2fd212f8da61 309 * to the underlying stack. For unsupported options,
Christopher Haster 105:2fd212f8da61 310 * NSAPI_ERROR_UNSUPPORTED is returned and the socket is unmodified.
Christopher Haster 105:2fd212f8da61 311 *
Christopher Haster 105:2fd212f8da61 312 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 313 * @param level Stack-specific protocol level
Christopher Haster 105:2fd212f8da61 314 * @param optname Stack-specific option identifier
Christopher Haster 105:2fd212f8da61 315 * @param optval Option value
Christopher Haster 105:2fd212f8da61 316 * @param optlen Length of the option value
Christopher Haster 105:2fd212f8da61 317 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 318 */
Christopher Haster 105:2fd212f8da61 319 virtual int setsockopt(void *handle, int level, int optname, const void *optval, unsigned optlen);
Christopher Haster 105:2fd212f8da61 320
Christopher Haster 105:2fd212f8da61 321 /* Get stack-specific socket options
Christopher Haster 105:2fd212f8da61 322 *
Christopher Haster 105:2fd212f8da61 323 * The getstackopt allow an application to retrieve stack-specific hints
Christopher Haster 105:2fd212f8da61 324 * from the underlying stack. For unsupported options,
Christopher Haster 105:2fd212f8da61 325 * NSAPI_ERROR_UNSUPPORTED is returned and optval is unmodified.
Christopher Haster 105:2fd212f8da61 326 *
Christopher Haster 105:2fd212f8da61 327 * @param handle Socket handle
Christopher Haster 105:2fd212f8da61 328 * @param level Stack-specific protocol level
Christopher Haster 105:2fd212f8da61 329 * @param optname Stack-specific option identifier
Christopher Haster 105:2fd212f8da61 330 * @param optval Destination for option value
Christopher Haster 105:2fd212f8da61 331 * @param optlen Length of the option value
Christopher Haster 105:2fd212f8da61 332 * @return 0 on success, negative error code on failure
Christopher Haster 105:2fd212f8da61 333 */
Christopher Haster 105:2fd212f8da61 334 virtual int getsockopt(void *handle, int level, int optname, void *optval, unsigned *optlen);
Christopher Haster 105:2fd212f8da61 335 };
Christopher Haster 105:2fd212f8da61 336
Christopher Haster 105:2fd212f8da61 337 #endif