DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

NetworkInterface.h@103:37decbcb1108, 2016-04-19 (annotated)

Committer:
Christopher Haster
Date:
Tue Apr 19 18:26:12 2016 -0500
Revision:
103:37decbcb1108
Parent:
101:9caa935c3baa
Child:
104:d28d8b508e7c
Revisited documentation for Socket API

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 103:37decbcb1108 1 /* NetworkInterface
Christopher Haster 89:b1d417383c0d 2 * Copyright (c) 2015 ARM Limited
Christopher Haster 89:b1d417383c0d 3 *
Christopher Haster 89:b1d417383c0d 4 * Licensed under the Apache License, Version 2.0 (the "License");
Christopher Haster 89:b1d417383c0d 5 * you may not use this file except in compliance with the License.
Christopher Haster 89:b1d417383c0d 6 * You may obtain a copy of the License at
Christopher Haster 89:b1d417383c0d 7 *
Christopher Haster 89:b1d417383c0d 8 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 89:b1d417383c0d 9 *
Christopher Haster 89:b1d417383c0d 10 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 89:b1d417383c0d 11 * distributed under the License is distributed on an "AS IS" BASIS,
Christopher Haster 89:b1d417383c0d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 89:b1d417383c0d 13 * See the License for the specific language governing permissions and
Christopher Haster 89:b1d417383c0d 14 * limitations under the License.
Christopher Haster 89:b1d417383c0d 15 */
Christopher Haster 89:b1d417383c0d 16
Christopher Haster 89:b1d417383c0d 17 #ifndef NETWORK_INTERFACE_H
Christopher Haster 89:b1d417383c0d 18 #define NETWORK_INTERFACE_H
Christopher Haster 89:b1d417383c0d 19
Christopher Haster 89:b1d417383c0d 20 #include "mbed.h"
Christopher Haster 89:b1d417383c0d 21 #include "SocketAddress.h"
Christopher Haster 89:b1d417383c0d 22
Christopher Haster 94:644df37bb05b 23
Christopher Haster 101:9caa935c3baa 24 /** Enum of standardized error codes
Christopher Haster 101:9caa935c3baa 25 *
Christopher Haster 101:9caa935c3baa 26 * Valid error codes have negative values and may
Christopher Haster 101:9caa935c3baa 27 * be returned by any network operation.
Christopher Haster 101:9caa935c3baa 28 *
Christopher Haster 96:656011e49d9f 29 * @enum nsapi_error_t
Christopher Haster 89:b1d417383c0d 30 */
Christopher Haster 89:b1d417383c0d 31 enum nsapi_error_t {
Christopher Haster 89:b1d417383c0d 32 NSAPI_ERROR_WOULD_BLOCK = -3001, /*!< no data is not available but call is non-blocking */
Christopher Haster 89:b1d417383c0d 33 NSAPI_ERROR_UNSUPPORTED = -3002, /*!< unsupported configuration */
Christopher Haster 89:b1d417383c0d 34 NSAPI_ERROR_NO_CONNECTION = -3003, /*!< not connected to a network */
Christopher Haster 89:b1d417383c0d 35 NSAPI_ERROR_NO_SOCKET = -3004, /*!< socket not available for use */
Christopher Haster 89:b1d417383c0d 36 NSAPI_ERROR_NO_ADDRESS = -3005, /*!< IP address is not known */
Christopher Haster 89:b1d417383c0d 37 NSAPI_ERROR_NO_MEMORY = -3006, /*!< memory resource not available */
Christopher Haster 89:b1d417383c0d 38 NSAPI_ERROR_DNS_FAILURE = -3007, /*!< DNS failed to complete successfully */
Christopher Haster 89:b1d417383c0d 39 NSAPI_ERROR_DHCP_FAILURE = -3008, /*!< DHCP failed to complete successfully */
Christopher Haster 89:b1d417383c0d 40 NSAPI_ERROR_AUTH_FAILURE = -3009, /*!< connection to access point faield */
Christopher Haster 89:b1d417383c0d 41 NSAPI_ERROR_DEVICE_ERROR = -3010, /*!< failure interfacing with the network procesor */
Christopher Haster 89:b1d417383c0d 42 };
Christopher Haster 89:b1d417383c0d 43
Christopher Haster 89:b1d417383c0d 44 /** Enum of socket protocols
Christopher Haster 101:9caa935c3baa 45 *
Christopher Haster 101:9caa935c3baa 46 * The socket protocol specifies a particular protocol to
Christopher Haster 101:9caa935c3baa 47 * be used with a newly created socket.
Christopher Haster 101:9caa935c3baa 48 *
Christopher Haster 89:b1d417383c0d 49 * @enum protocol_t
Christopher Haster 89:b1d417383c0d 50 */
Christopher Haster 89:b1d417383c0d 51 enum nsapi_protocol_t {
Christopher Haster 89:b1d417383c0d 52 NSAPI_TCP, /*!< Socket is of TCP type */
Christopher Haster 89:b1d417383c0d 53 NSAPI_UDP, /*!< Socket is of UDP type */
Christopher Haster 89:b1d417383c0d 54 };
Christopher Haster 89:b1d417383c0d 55
Christopher Haster 94:644df37bb05b 56 /** Maximum size of MAC address representation
Christopher Haster 94:644df37bb05b 57 */
Christopher Haster 94:644df37bb05b 58 #define NSAPI_MAC_SIZE 18
Christopher Haster 94:644df37bb05b 59
Christopher Haster 94:644df37bb05b 60 /** Maximum number of bytes for MAC address
Christopher Haster 94:644df37bb05b 61 */
Christopher Haster 94:644df37bb05b 62 #define NSAPI_MAC_BYTES 6
Christopher Haster 94:644df37bb05b 63
Christopher Haster 94:644df37bb05b 64
Christopher Haster 89:b1d417383c0d 65 /** NetworkInterface class
Christopher Haster 101:9caa935c3baa 66 *
Christopher Haster 101:9caa935c3baa 67 * Common interface that is shared between hardware that
Christopher Haster 101:9caa935c3baa 68 * can connect to a network over IP. By implementing the
Christopher Haster 101:9caa935c3baa 69 * NetworkInterface, a network stack can be used as a target
Christopher Haster 101:9caa935c3baa 70 * for instantiating network sockets.
Christopher Haster 89:b1d417383c0d 71 */
Christopher Haster 89:b1d417383c0d 72 class NetworkInterface
Christopher Haster 89:b1d417383c0d 73 {
Christopher Haster 89:b1d417383c0d 74 public:
Christopher Haster 89:b1d417383c0d 75 virtual ~NetworkInterface() {};
Christopher Haster 89:b1d417383c0d 76
Christopher Haster 89:b1d417383c0d 77 /** Get the internally stored IP address
Christopher Haster 101:9caa935c3baa 78 *
Christopher Haster 89:b1d417383c0d 79 * @return IP address of the interface or null if not yet connected
Christopher Haster 89:b1d417383c0d 80 */
Christopher Haster 89:b1d417383c0d 81 virtual const char *get_ip_address() = 0;
Christopher Haster 89:b1d417383c0d 82
Christopher Haster 89:b1d417383c0d 83 /** Get the internally stored MAC address
Christopher Haster 101:9caa935c3baa 84 *
Christopher Haster 89:b1d417383c0d 85 * @return MAC address of the interface
Christopher Haster 89:b1d417383c0d 86 */
Christopher Haster 89:b1d417383c0d 87 virtual const char *get_mac_address() = 0;
Christopher Haster 89:b1d417383c0d 88
Christopher Haster 101:9caa935c3baa 89 /** Translates a host name to an IP address
Christopher Haster 101:9caa935c3baa 90 *
Christopher Haster 101:9caa935c3baa 91 * The host name may be either a domain name or an IP address.
Christopher Haster 101:9caa935c3baa 92 * If no stack-specific DNS resolution is provided, the host name
Christopher Haster 101:9caa935c3baa 93 * will be resolve using a UDP socket on the stack.
Christopher Haster 101:9caa935c3baa 94 *
Christopher Haster 95:b3c679f20d13 95 * @param address Destination for the host SocketAddress
Christopher Haster 101:9caa935c3baa 96 * @param host Host name to lookup
Christopher Haster 101:9caa935c3baa 97 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 98 */
Christopher Haster 101:9caa935c3baa 99 virtual int gethostbyname(SocketAddress *address, const char *host);
Christopher Haster 89:b1d417383c0d 100
Christopher Haster 101:9caa935c3baa 101 /* Set stack-specific stack options
Christopher Haster 101:9caa935c3baa 102 *
Christopher Haster 101:9caa935c3baa 103 * The setstackopt allow an application to pass stack-specific hints
Christopher Haster 101:9caa935c3baa 104 * to the underlying stack. For unsupported options,
Christopher Haster 101:9caa935c3baa 105 * NSAPI_ERROR_UNSUPPORTED is returned and the stack is unmodified.
Christopher Haster 101:9caa935c3baa 106 *
Christopher Haster 101:9caa935c3baa 107 * @param level Stack-specific protocol level
Christopher Haster 101:9caa935c3baa 108 * @param optname Stack-specific option identifier
Christopher Haster 99:f51358e506c1 109 * @param optval Option value
Christopher Haster 99:f51358e506c1 110 * @param optlen Length of the option value
Christopher Haster 101:9caa935c3baa 111 * @return 0 on success, negative error code on failure
Christopher Haster 99:f51358e506c1 112 */
Christopher Haster 99:f51358e506c1 113 virtual int setstackopt(int level, int optname, const void *optval, unsigned optlen);
Christopher Haster 99:f51358e506c1 114
Christopher Haster 101:9caa935c3baa 115 /* Get stack-specific stack options
Christopher Haster 101:9caa935c3baa 116 *
Christopher Haster 101:9caa935c3baa 117 * The getstackopt allow an application to retrieve stack-specific hints
Christopher Haster 101:9caa935c3baa 118 * from the underlying stack. For unsupported options,
Christopher Haster 101:9caa935c3baa 119 * NSAPI_ERROR_UNSUPPORTED is returned and optval is unmodified.
Christopher Haster 101:9caa935c3baa 120 *
Christopher Haster 101:9caa935c3baa 121 * @param level Stack-specific protocol level
Christopher Haster 101:9caa935c3baa 122 * @param optname Stack-specific option identifier
Christopher Haster 101:9caa935c3baa 123 * @param optval Destination for option value
Christopher Haster 99:f51358e506c1 124 * @param optlen Length of the option value
Christopher Haster 101:9caa935c3baa 125 * @return 0 on success, negative error code on failure
Christopher Haster 99:f51358e506c1 126 */
Christopher Haster 99:f51358e506c1 127 virtual int getstackopt(int level, int optname, void *optval, unsigned *optlen);
Christopher Haster 99:f51358e506c1 128
Christopher Haster 89:b1d417383c0d 129 protected:
Christopher Haster 89:b1d417383c0d 130 friend class Socket;
Christopher Haster 89:b1d417383c0d 131 friend class UDPSocket;
Christopher Haster 89:b1d417383c0d 132 friend class TCPSocket;
Christopher Haster 89:b1d417383c0d 133 friend class TCPServer;
Christopher Haster 89:b1d417383c0d 134
Christopher Haster 101:9caa935c3baa 135 /** Opens a socket
Christopher Haster 101:9caa935c3baa 136 *
Christopher Haster 103:37decbcb1108 137 * Creates a network socket and stores it in the specified handle.
Christopher Haster 103:37decbcb1108 138 * The handle must be passed to following calls on the socket.
Christopher Haster 101:9caa935c3baa 139 *
Christopher Haster 101:9caa935c3baa 140 * A stack may have a finite number of sockets, in this case
Christopher Haster 101:9caa935c3baa 141 * NSAPI_ERROR_NO_SOCKET is returned if no socket is available.
Christopher Haster 101:9caa935c3baa 142 *
Christopher Haster 101:9caa935c3baa 143 * @param handle Destination for the handle to a newly created socket
Christopher Haster 101:9caa935c3baa 144 * @param proto Protocol of socket to open, NSAPI_TCP or NSAPI_UDP
Christopher Haster 101:9caa935c3baa 145 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 146 */
Christopher Haster 93:65a9f84862f0 147 virtual int socket_open(void **handle, nsapi_protocol_t proto) = 0;
Christopher Haster 89:b1d417383c0d 148
Christopher Haster 93:65a9f84862f0 149 /** Close the socket
Christopher Haster 101:9caa935c3baa 150 *
Christopher Haster 103:37decbcb1108 151 * Closes any open connection and deallocates any memory associated
Christopher Haster 103:37decbcb1108 152 * with the socket.
Christopher Haster 101:9caa935c3baa 153 *
Christopher Haster 93:65a9f84862f0 154 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 155 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 156 */
Christopher Haster 93:65a9f84862f0 157 virtual int socket_close(void *handle) = 0;
Christopher Haster 89:b1d417383c0d 158
Christopher Haster 101:9caa935c3baa 159 /** Bind a specific address to a socket
Christopher Haster 101:9caa935c3baa 160 *
Christopher Haster 101:9caa935c3baa 161 * Binding a socket specifies the address and port on which to recieve
Christopher Haster 101:9caa935c3baa 162 * data. If the IP address is zeroed, only the port is bound.
Christopher Haster 101:9caa935c3baa 163 *
Christopher Haster 89:b1d417383c0d 164 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 165 * @param address Local address to bind
Christopher Haster 101:9caa935c3baa 166 * @return 0 on success, negative error code on failure.
Christopher Haster 89:b1d417383c0d 167 */
Christopher Haster 96:656011e49d9f 168 virtual int socket_bind(void *handle, const SocketAddress &address) = 0;
Christopher Haster 89:b1d417383c0d 169
Christopher Haster 101:9caa935c3baa 170 /** Listen for connections on a TCP socket
Christopher Haster 101:9caa935c3baa 171 *
Christopher Haster 101:9caa935c3baa 172 * Marks the socket as a passive socket that can be used to accept
Christopher Haster 101:9caa935c3baa 173 * incoming connections.
Christopher Haster 101:9caa935c3baa 174 *
Christopher Haster 89:b1d417383c0d 175 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 176 * @param backlog Number of pending connections that can be queued
Christopher Haster 103:37decbcb1108 177 * simultaneously
Christopher Haster 101:9caa935c3baa 178 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 179 */
Christopher Haster 89:b1d417383c0d 180 virtual int socket_listen(void *handle, int backlog) = 0;
Christopher Haster 89:b1d417383c0d 181
Christopher Haster 101:9caa935c3baa 182 /** Connects TCP socket to a remote host
Christopher Haster 101:9caa935c3baa 183 *
Christopher Haster 101:9caa935c3baa 184 * Initiates a connection to a remote server specified by the
Christopher Haster 101:9caa935c3baa 185 * indicated address.
Christopher Haster 101:9caa935c3baa 186 *
Christopher Haster 89:b1d417383c0d 187 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 188 * @param address The SocketAddress of the remote host
Christopher Haster 101:9caa935c3baa 189 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 190 */
Christopher Haster 89:b1d417383c0d 191 virtual int socket_connect(void *handle, const SocketAddress &address) = 0;
Christopher Haster 89:b1d417383c0d 192
Christopher Haster 101:9caa935c3baa 193 /** Accepts a connection on a TCP socket
Christopher Haster 101:9caa935c3baa 194 *
Christopher Haster 101:9caa935c3baa 195 * The server socket must be bound and set to listen for connections.
Christopher Haster 103:37decbcb1108 196 * On a new connection, creates a network socket and stores it in the
Christopher Haster 103:37decbcb1108 197 * specified handle. The handle must be passed to following calls on
Christopher Haster 103:37decbcb1108 198 * the socket.
Christopher Haster 101:9caa935c3baa 199 *
Christopher Haster 101:9caa935c3baa 200 * A stack may have a finite number of sockets, in this case
Christopher Haster 101:9caa935c3baa 201 * NSAPI_ERROR_NO_SOCKET is returned if no socket is available.
Christopher Haster 101:9caa935c3baa 202 *
Christopher Haster 101:9caa935c3baa 203 * This call is non-blocking. If accept would block,
Christopher Haster 101:9caa935c3baa 204 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 101:9caa935c3baa 205 *
Christopher Haster 101:9caa935c3baa 206 * @param handle Destination for a handle to the newly created sockey
Christopher Haster 93:65a9f84862f0 207 * @param server Socket handle to server to accept from
Christopher Haster 101:9caa935c3baa 208 * @return 0 on success, negative error code on failure
Christopher Haster 89:b1d417383c0d 209 */
Christopher Haster 93:65a9f84862f0 210 virtual int socket_accept(void **handle, void *server) = 0;
Christopher Haster 89:b1d417383c0d 211
Christopher Haster 101:9caa935c3baa 212 /** Send data over a TCP socket
Christopher Haster 101:9caa935c3baa 213 *
Christopher Haster 101:9caa935c3baa 214 * The socket must be connected to a remote host. Returns the number of
Christopher Haster 101:9caa935c3baa 215 * bytes sent from the buffer.
Christopher Haster 101:9caa935c3baa 216 *
Christopher Haster 101:9caa935c3baa 217 * This call is non-blocking. If send would block,
Christopher Haster 101:9caa935c3baa 218 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 101:9caa935c3baa 219 *
Christopher Haster 89:b1d417383c0d 220 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 221 * @param data Buffer of data to send to the host
Christopher Haster 101:9caa935c3baa 222 * @param size Size of the buffer in bytes
Christopher Haster 101:9caa935c3baa 223 * @return Number of sent bytes on success, negative error
Christopher Haster 101:9caa935c3baa 224 * code on failure
Christopher Haster 89:b1d417383c0d 225 */
Christopher Haster 89:b1d417383c0d 226 virtual int socket_send(void *handle, const void *data, unsigned size) = 0;
Christopher Haster 89:b1d417383c0d 227
Christopher Haster 101:9caa935c3baa 228 /** Receive data over a TCP socket
Christopher Haster 101:9caa935c3baa 229 *
Christopher Haster 101:9caa935c3baa 230 * The socket must be connected to a remote host. Returns the number of
Christopher Haster 101:9caa935c3baa 231 * bytes received into the buffer.
Christopher Haster 101:9caa935c3baa 232 *
Christopher Haster 101:9caa935c3baa 233 * This call is non-blocking. If recv would block,
Christopher Haster 101:9caa935c3baa 234 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 101:9caa935c3baa 235 *
Christopher Haster 89:b1d417383c0d 236 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 237 * @param data Destination buffer for data received from the host
Christopher Haster 101:9caa935c3baa 238 * @param size Size of the buffer in bytes
Christopher Haster 101:9caa935c3baa 239 * @return Number of received bytes on success, negative error
Christopher Haster 101:9caa935c3baa 240 * code on failure
Christopher Haster 89:b1d417383c0d 241 */
Christopher Haster 89:b1d417383c0d 242 virtual int socket_recv(void *handle, void *data, unsigned size) = 0;
Christopher Haster 89:b1d417383c0d 243
Christopher Haster 101:9caa935c3baa 244 /** Send a packet over a UDP socket
Christopher Haster 101:9caa935c3baa 245 *
Christopher Haster 101:9caa935c3baa 246 * Sends data to the specified address. Returns the number of bytes
Christopher Haster 101:9caa935c3baa 247 * sent from the buffer.
Christopher Haster 101:9caa935c3baa 248 *
Christopher Haster 101:9caa935c3baa 249 * This call is non-blocking. If sendto would block,
Christopher Haster 101:9caa935c3baa 250 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 101:9caa935c3baa 251 *
Christopher Haster 89:b1d417383c0d 252 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 253 * @param address The SocketAddress of the remote host
Christopher Haster 101:9caa935c3baa 254 * @param data Buffer of data to send to the host
Christopher Haster 101:9caa935c3baa 255 * @param size Size of the buffer in bytes
Christopher Haster 101:9caa935c3baa 256 * @return Number of sent bytes on success, negative error
Christopher Haster 101:9caa935c3baa 257 * code on failure
Christopher Haster 89:b1d417383c0d 258 */
Christopher Haster 89:b1d417383c0d 259 virtual int socket_sendto(void *handle, const SocketAddress &address, const void *data, unsigned size) = 0;
Christopher Haster 89:b1d417383c0d 260
Christopher Haster 101:9caa935c3baa 261 /** Receive a packet over a UDP socket
Christopher Haster 101:9caa935c3baa 262 *
Christopher Haster 101:9caa935c3baa 263 * Receives data and stores the source address in address if address
Christopher Haster 101:9caa935c3baa 264 * is not NULL. Returns the number of bytes received into the buffer.
Christopher Haster 101:9caa935c3baa 265 *
Christopher Haster 101:9caa935c3baa 266 * This call is non-blocking. If recvfrom would block,
Christopher Haster 101:9caa935c3baa 267 * NSAPI_ERROR_WOULD_BLOCK is returned immediately.
Christopher Haster 101:9caa935c3baa 268 *
Christopher Haster 89:b1d417383c0d 269 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 270 * @param address Destination for the source address or NULL
Christopher Haster 101:9caa935c3baa 271 * @param data Destination buffer for data received from the host
Christopher Haster 101:9caa935c3baa 272 * @param size Size of the buffer in bytes
Christopher Haster 101:9caa935c3baa 273 * @return Number of received bytes on success, negative error
Christopher Haster 101:9caa935c3baa 274 * code on failure
Christopher Haster 89:b1d417383c0d 275 */
Christopher Haster 89:b1d417383c0d 276 virtual int socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size) = 0;
Christopher Haster 89:b1d417383c0d 277
Christopher Haster 92:dd5f19874adf 278 /** Register a callback on state change of the socket
Christopher Haster 101:9caa935c3baa 279 *
Christopher Haster 101:9caa935c3baa 280 * The specified callback will be called on state changes such as when
Christopher Haster 101:9caa935c3baa 281 * the socket can recv/send/accept successfully and on when an error
Christopher Haster 101:9caa935c3baa 282 * occurs. The callback may also be called spuriously without reason.
Christopher Haster 101:9caa935c3baa 283 *
Christopher Haster 101:9caa935c3baa 284 * The callback may be called in an interrupt context and should not
Christopher Haster 101:9caa935c3baa 285 * perform expensive operations such as recv/send calls.
Christopher Haster 101:9caa935c3baa 286 *
Christopher Haster 89:b1d417383c0d 287 * @param handle Socket handle
Christopher Haster 92:dd5f19874adf 288 * @param callback Function to call on state change
Christopher Haster 92:dd5f19874adf 289 * @param data Argument to pass to callback
Christopher Haster 89:b1d417383c0d 290 */
Christopher Haster 92:dd5f19874adf 291 virtual void socket_attach(void *handle, void (*callback)(void *), void *data) = 0;
Christopher Haster 99:f51358e506c1 292
Christopher Haster 103:37decbcb1108 293 /* Set stack-specific socket options
Christopher Haster 101:9caa935c3baa 294 *
Christopher Haster 101:9caa935c3baa 295 * The setsockopt allow an application to pass stack-specific hints
Christopher Haster 101:9caa935c3baa 296 * to the underlying stack. For unsupported options,
Christopher Haster 101:9caa935c3baa 297 * NSAPI_ERROR_UNSUPPORTED is returned and the socket is unmodified.
Christopher Haster 101:9caa935c3baa 298 *
Christopher Haster 99:f51358e506c1 299 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 300 * @param level Stack-specific protocol level
Christopher Haster 101:9caa935c3baa 301 * @param optname Stack-specific option identifier
Christopher Haster 99:f51358e506c1 302 * @param optval Option value
Christopher Haster 99:f51358e506c1 303 * @param optlen Length of the option value
Christopher Haster 101:9caa935c3baa 304 * @return 0 on success, negative error code on failure
Christopher Haster 99:f51358e506c1 305 */
Christopher Haster 99:f51358e506c1 306 virtual int setsockopt(void *handle, int level, int optname, const void *optval, unsigned optlen);
Christopher Haster 99:f51358e506c1 307
Christopher Haster 101:9caa935c3baa 308 /* Get stack-specific socket options
Christopher Haster 101:9caa935c3baa 309 *
Christopher Haster 101:9caa935c3baa 310 * The getstackopt allow an application to retrieve stack-specific hints
Christopher Haster 101:9caa935c3baa 311 * from the underlying stack. For unsupported options,
Christopher Haster 101:9caa935c3baa 312 * NSAPI_ERROR_UNSUPPORTED is returned and optval is unmodified.
Christopher Haster 101:9caa935c3baa 313 *
Christopher Haster 99:f51358e506c1 314 * @param handle Socket handle
Christopher Haster 101:9caa935c3baa 315 * @param level Stack-specific protocol level
Christopher Haster 101:9caa935c3baa 316 * @param optname Stack-specific option identifier
Christopher Haster 101:9caa935c3baa 317 * @param optval Destination for option value
Christopher Haster 99:f51358e506c1 318 * @param optlen Length of the option value
Christopher Haster 101:9caa935c3baa 319 * @return 0 on success, negative error code on failure
Christopher Haster 99:f51358e506c1 320 */
Christopher Haster 99:f51358e506c1 321 virtual int getsockopt(void *handle, int level, int optname, void *optval, unsigned *optlen);
Christopher Haster 89:b1d417383c0d 322 };
Christopher Haster 89:b1d417383c0d 323
Christopher Haster 89:b1d417383c0d 324 #endif