mbed-os5 only for TYBLE16
Dependents: TYBLE16_simple_data_logger TYBLE16_MP3_Air
features/netsocket/Socket.h@1:9db0e321a9f4, 2019-12-31 (annotated)
- Committer:
- kenjiArai
- Date:
- Tue Dec 31 06:02:27 2019 +0000
- Revision:
- 1:9db0e321a9f4
- Parent:
- 0:5b88d5760320
updated based on mbed-os5.15.0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kenjiArai | 0:5b88d5760320 | 1 | /* |
kenjiArai | 0:5b88d5760320 | 2 | * Copyright (c) 2015 ARM Limited |
kenjiArai | 0:5b88d5760320 | 3 | * |
kenjiArai | 0:5b88d5760320 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
kenjiArai | 0:5b88d5760320 | 5 | * you may not use this file except in compliance with the License. |
kenjiArai | 0:5b88d5760320 | 6 | * You may obtain a copy of the License at |
kenjiArai | 0:5b88d5760320 | 7 | * |
kenjiArai | 0:5b88d5760320 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
kenjiArai | 0:5b88d5760320 | 9 | * |
kenjiArai | 0:5b88d5760320 | 10 | * Unless required by applicable law or agreed to in writing, software |
kenjiArai | 0:5b88d5760320 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
kenjiArai | 0:5b88d5760320 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
kenjiArai | 0:5b88d5760320 | 13 | * See the License for the specific language governing permissions and |
kenjiArai | 0:5b88d5760320 | 14 | * limitations under the License. |
kenjiArai | 0:5b88d5760320 | 15 | */ |
kenjiArai | 0:5b88d5760320 | 16 | |
kenjiArai | 0:5b88d5760320 | 17 | /** @file Socket.h Abstract Socket interface */ |
kenjiArai | 0:5b88d5760320 | 18 | /** @addtogroup netsocket |
kenjiArai | 0:5b88d5760320 | 19 | * Mbed OS Socket API |
kenjiArai | 0:5b88d5760320 | 20 | * @{ */ |
kenjiArai | 0:5b88d5760320 | 21 | |
kenjiArai | 0:5b88d5760320 | 22 | #ifndef SOCKET_H |
kenjiArai | 0:5b88d5760320 | 23 | #define SOCKET_H |
kenjiArai | 0:5b88d5760320 | 24 | |
kenjiArai | 0:5b88d5760320 | 25 | #include "netsocket/SocketAddress.h" |
kenjiArai | 0:5b88d5760320 | 26 | #include "Callback.h" |
kenjiArai | 0:5b88d5760320 | 27 | |
kenjiArai | 0:5b88d5760320 | 28 | /** Socket interface. |
kenjiArai | 0:5b88d5760320 | 29 | * |
kenjiArai | 0:5b88d5760320 | 30 | * This class defines the Mbed OS Socket API. |
kenjiArai | 0:5b88d5760320 | 31 | * Socket is an abstract interface for communicating with remote endpoints. |
kenjiArai | 0:5b88d5760320 | 32 | * |
kenjiArai | 0:5b88d5760320 | 33 | * This API is intended for applications and libraries instead of |
kenjiArai | 0:5b88d5760320 | 34 | * protocol-specific implementations. For example, TCPSocket |
kenjiArai | 0:5b88d5760320 | 35 | * and UDPSocket are implementations of the Socket interface. |
kenjiArai | 0:5b88d5760320 | 36 | * Socket API is intentionally not protocol-specific, and allows all protocol |
kenjiArai | 0:5b88d5760320 | 37 | * to provide the same API regardless of the underlying transport mechanism. |
kenjiArai | 0:5b88d5760320 | 38 | */ |
kenjiArai | 0:5b88d5760320 | 39 | class Socket { |
kenjiArai | 0:5b88d5760320 | 40 | public: |
kenjiArai | 0:5b88d5760320 | 41 | /** Destroy a socket. |
kenjiArai | 0:5b88d5760320 | 42 | * |
kenjiArai | 0:5b88d5760320 | 43 | * Closes socket if the socket is still open. |
kenjiArai | 0:5b88d5760320 | 44 | */ |
kenjiArai | 0:5b88d5760320 | 45 | virtual ~Socket() {} |
kenjiArai | 0:5b88d5760320 | 46 | |
kenjiArai | 0:5b88d5760320 | 47 | /** Closes the socket. |
kenjiArai | 0:5b88d5760320 | 48 | * |
kenjiArai | 0:5b88d5760320 | 49 | * Closes any open connection and deallocates any memory associated |
kenjiArai | 0:5b88d5760320 | 50 | * with the socket. Called from destructor if socket is not closed. |
kenjiArai | 0:5b88d5760320 | 51 | * |
kenjiArai | 1:9db0e321a9f4 | 52 | * @return NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 53 | * Negative subclass-dependent error code on failure. |
kenjiArai | 0:5b88d5760320 | 54 | */ |
kenjiArai | 0:5b88d5760320 | 55 | virtual nsapi_error_t close() = 0; |
kenjiArai | 0:5b88d5760320 | 56 | |
kenjiArai | 0:5b88d5760320 | 57 | /** Connects socket to a remote address. |
kenjiArai | 0:5b88d5760320 | 58 | * |
kenjiArai | 0:5b88d5760320 | 59 | * Attempts to make connection on connection-mode protocol or set or reset |
kenjiArai | 0:5b88d5760320 | 60 | * the peer address on connectionless protocol. |
kenjiArai | 0:5b88d5760320 | 61 | * |
kenjiArai | 0:5b88d5760320 | 62 | * Connectionless protocols also use the connected address to filter |
kenjiArai | 0:5b88d5760320 | 63 | * incoming packets for recv() and recvfrom() calls. |
kenjiArai | 0:5b88d5760320 | 64 | * |
kenjiArai | 0:5b88d5760320 | 65 | * To reset the peer address, there must be zero initialized(default constructor) SocketAddress |
kenjiArai | 0:5b88d5760320 | 66 | * objects in the address parameter. |
kenjiArai | 0:5b88d5760320 | 67 | * |
kenjiArai | 0:5b88d5760320 | 68 | * @note If connect() fails it is recommended to close the Socket and create |
kenjiArai | 0:5b88d5760320 | 69 | * a new one before attempting to reconnect. |
kenjiArai | 0:5b88d5760320 | 70 | * |
kenjiArai | 0:5b88d5760320 | 71 | * @param address The SocketAddress of the remote peer. |
kenjiArai | 1:9db0e321a9f4 | 72 | * @return NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 73 | * Negative subclass-dependent error code on failure. |
kenjiArai | 0:5b88d5760320 | 74 | */ |
kenjiArai | 0:5b88d5760320 | 75 | virtual nsapi_error_t connect(const SocketAddress &address) = 0; |
kenjiArai | 0:5b88d5760320 | 76 | |
kenjiArai | 0:5b88d5760320 | 77 | /** Send data on a socket |
kenjiArai | 0:5b88d5760320 | 78 | * |
kenjiArai | 0:5b88d5760320 | 79 | * The socket must be connected to a remote host before send() call. |
kenjiArai | 0:5b88d5760320 | 80 | * Returns the number of bytes sent from the buffer. |
kenjiArai | 0:5b88d5760320 | 81 | * In case of connectionless socket, sends data to pre-specified remote. |
kenjiArai | 0:5b88d5760320 | 82 | * |
kenjiArai | 0:5b88d5760320 | 83 | * By default, send blocks until all data is sent. If socket is set to |
kenjiArai | 0:5b88d5760320 | 84 | * non-blocking or times out, a partial amount can be written. |
kenjiArai | 0:5b88d5760320 | 85 | * NSAPI_ERROR_WOULD_BLOCK is returned if no data was written. |
kenjiArai | 0:5b88d5760320 | 86 | * |
kenjiArai | 0:5b88d5760320 | 87 | * @param data Buffer of data to send to the host. |
kenjiArai | 0:5b88d5760320 | 88 | * @param size Size of the buffer in bytes. |
kenjiArai | 1:9db0e321a9f4 | 89 | * @return NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 90 | * Negative subclass-dependent error code on failure. |
kenjiArai | 0:5b88d5760320 | 91 | */ |
kenjiArai | 0:5b88d5760320 | 92 | virtual nsapi_size_or_error_t send(const void *data, nsapi_size_t size) = 0; |
kenjiArai | 0:5b88d5760320 | 93 | |
kenjiArai | 0:5b88d5760320 | 94 | /** Receive data from a socket. |
kenjiArai | 0:5b88d5760320 | 95 | * |
kenjiArai | 0:5b88d5760320 | 96 | * Receive data from connected socket, or in the case of connectionless socket, |
kenjiArai | 0:5b88d5760320 | 97 | * equivalent to calling recvfrom(NULL, data, size). |
kenjiArai | 0:5b88d5760320 | 98 | * |
kenjiArai | 0:5b88d5760320 | 99 | * If socket is connected, only packets coming from connected peer address |
kenjiArai | 0:5b88d5760320 | 100 | * are accepted. |
kenjiArai | 0:5b88d5760320 | 101 | * |
kenjiArai | 0:5b88d5760320 | 102 | * @note recv() is allowed write to data buffer even if an error occurs. |
kenjiArai | 0:5b88d5760320 | 103 | * |
kenjiArai | 0:5b88d5760320 | 104 | * By default, recv blocks until some data is received. If socket is set to |
kenjiArai | 0:5b88d5760320 | 105 | * non-blocking or times out, NSAPI_ERROR_WOULD_BLOCK can be returned to |
kenjiArai | 0:5b88d5760320 | 106 | * indicate no data. |
kenjiArai | 0:5b88d5760320 | 107 | * |
kenjiArai | 0:5b88d5760320 | 108 | * @param data Destination buffer for data received from the host. |
kenjiArai | 0:5b88d5760320 | 109 | * @param size Size of the buffer in bytes. |
kenjiArai | 1:9db0e321a9f4 | 110 | * @return Number of received bytes on success, negative, subclass-dependent |
kenjiArai | 1:9db0e321a9f4 | 111 | * error code on failure. If no data is available to be received |
kenjiArai | 0:5b88d5760320 | 112 | * and the peer has performed an orderly shutdown, |
kenjiArai | 0:5b88d5760320 | 113 | * recv() returns 0. |
kenjiArai | 0:5b88d5760320 | 114 | */ |
kenjiArai | 0:5b88d5760320 | 115 | virtual nsapi_size_or_error_t recv(void *data, nsapi_size_t size) = 0; |
kenjiArai | 0:5b88d5760320 | 116 | |
kenjiArai | 0:5b88d5760320 | 117 | /** Send a message on a socket. |
kenjiArai | 0:5b88d5760320 | 118 | * |
kenjiArai | 0:5b88d5760320 | 119 | * The sendto() function sends a message through a connection-mode or connectionless-mode socket. |
kenjiArai | 0:5b88d5760320 | 120 | * If the socket is a connectionless-mode socket, the message is sent to the address specified. |
kenjiArai | 0:5b88d5760320 | 121 | * If the socket is a connected-mode socket, address is ignored. |
kenjiArai | 0:5b88d5760320 | 122 | * |
kenjiArai | 0:5b88d5760320 | 123 | * By default, sendto blocks until data is sent. If socket is set to |
kenjiArai | 0:5b88d5760320 | 124 | * non-blocking or times out, NSAPI_ERROR_WOULD_BLOCK is returned |
kenjiArai | 0:5b88d5760320 | 125 | * immediately. |
kenjiArai | 0:5b88d5760320 | 126 | * |
kenjiArai | 0:5b88d5760320 | 127 | * @param address Remote address |
kenjiArai | 0:5b88d5760320 | 128 | * @param data Buffer of data to send to the host |
kenjiArai | 0:5b88d5760320 | 129 | * @param size Size of the buffer in bytes |
kenjiArai | 1:9db0e321a9f4 | 130 | * @return Number of sent bytes on success, negative subclass-dependent error |
kenjiArai | 0:5b88d5760320 | 131 | * code on failure |
kenjiArai | 0:5b88d5760320 | 132 | */ |
kenjiArai | 0:5b88d5760320 | 133 | virtual nsapi_size_or_error_t sendto(const SocketAddress &address, |
kenjiArai | 0:5b88d5760320 | 134 | const void *data, nsapi_size_t size) = 0; |
kenjiArai | 0:5b88d5760320 | 135 | |
kenjiArai | 0:5b88d5760320 | 136 | /** Receive a data from a socket |
kenjiArai | 0:5b88d5760320 | 137 | * |
kenjiArai | 0:5b88d5760320 | 138 | * Receives a data and stores the source address in address if address |
kenjiArai | 0:5b88d5760320 | 139 | * is not NULL. Returns the number of bytes written into the buffer. |
kenjiArai | 0:5b88d5760320 | 140 | * |
kenjiArai | 0:5b88d5760320 | 141 | * If socket is connected, only packets coming from connected peer address |
kenjiArai | 0:5b88d5760320 | 142 | * are accepted. |
kenjiArai | 0:5b88d5760320 | 143 | * |
kenjiArai | 0:5b88d5760320 | 144 | * @note recvfrom() is allowed write to address and data buffers even if error occurs. |
kenjiArai | 0:5b88d5760320 | 145 | * |
kenjiArai | 0:5b88d5760320 | 146 | * By default, recvfrom blocks until a datagram is received. If socket is set to |
kenjiArai | 0:5b88d5760320 | 147 | * non-blocking or times out with no data, NSAPI_ERROR_WOULD_BLOCK |
kenjiArai | 0:5b88d5760320 | 148 | * is returned. |
kenjiArai | 0:5b88d5760320 | 149 | * |
kenjiArai | 0:5b88d5760320 | 150 | * @param address Destination for the source address or NULL |
kenjiArai | 0:5b88d5760320 | 151 | * @param data Destination buffer for datagram received from the host |
kenjiArai | 0:5b88d5760320 | 152 | * @param size Size of the buffer in bytes |
kenjiArai | 1:9db0e321a9f4 | 153 | * @return Number of received bytes on success, negative subclass-dependent |
kenjiArai | 1:9db0e321a9f4 | 154 | * error code on failure |
kenjiArai | 0:5b88d5760320 | 155 | */ |
kenjiArai | 0:5b88d5760320 | 156 | virtual nsapi_size_or_error_t recvfrom(SocketAddress *address, |
kenjiArai | 0:5b88d5760320 | 157 | void *data, nsapi_size_t size) = 0; |
kenjiArai | 0:5b88d5760320 | 158 | |
kenjiArai | 0:5b88d5760320 | 159 | /** Bind a specific address to a socket. |
kenjiArai | 0:5b88d5760320 | 160 | * |
kenjiArai | 0:5b88d5760320 | 161 | * Binding a socket specifies the address and port on which to receive |
kenjiArai | 0:5b88d5760320 | 162 | * data. If the IP address is zeroed, only the port is bound. |
kenjiArai | 0:5b88d5760320 | 163 | * |
kenjiArai | 0:5b88d5760320 | 164 | * @param address Local address to bind. |
kenjiArai | 1:9db0e321a9f4 | 165 | * @return NSAPI_ERROR_OK on success, negative subclass-dependent error |
kenjiArai | 1:9db0e321a9f4 | 166 | * code on failure. |
kenjiArai | 0:5b88d5760320 | 167 | */ |
kenjiArai | 0:5b88d5760320 | 168 | virtual nsapi_error_t bind(const SocketAddress &address) = 0; |
kenjiArai | 0:5b88d5760320 | 169 | |
kenjiArai | 0:5b88d5760320 | 170 | /** Set blocking or non-blocking mode of the socket. |
kenjiArai | 0:5b88d5760320 | 171 | * |
kenjiArai | 0:5b88d5760320 | 172 | * Initially all sockets are in blocking mode. In non-blocking mode |
kenjiArai | 0:5b88d5760320 | 173 | * blocking operations such as send/recv/accept return |
kenjiArai | 0:5b88d5760320 | 174 | * NSAPI_ERROR_WOULD_BLOCK if they cannot continue. |
kenjiArai | 0:5b88d5760320 | 175 | * |
kenjiArai | 0:5b88d5760320 | 176 | * set_blocking(false) is equivalent to set_timeout(0) |
kenjiArai | 0:5b88d5760320 | 177 | * set_blocking(true) is equivalent to set_timeout(-1) |
kenjiArai | 0:5b88d5760320 | 178 | * |
kenjiArai | 0:5b88d5760320 | 179 | * @param blocking true for blocking mode, false for non-blocking mode. |
kenjiArai | 0:5b88d5760320 | 180 | */ |
kenjiArai | 0:5b88d5760320 | 181 | virtual void set_blocking(bool blocking) = 0; |
kenjiArai | 0:5b88d5760320 | 182 | |
kenjiArai | 0:5b88d5760320 | 183 | /** Set timeout on blocking socket operations. |
kenjiArai | 0:5b88d5760320 | 184 | * |
kenjiArai | 0:5b88d5760320 | 185 | * Initially all sockets have unbounded timeouts. NSAPI_ERROR_WOULD_BLOCK |
kenjiArai | 0:5b88d5760320 | 186 | * is returned if a blocking operation takes longer than the specified |
kenjiArai | 0:5b88d5760320 | 187 | * timeout. A timeout of 0 removes the timeout from the socket. A negative |
kenjiArai | 0:5b88d5760320 | 188 | * value gives the socket an unbounded timeout. |
kenjiArai | 0:5b88d5760320 | 189 | * |
kenjiArai | 0:5b88d5760320 | 190 | * set_timeout(0) is equivalent to set_blocking(false) |
kenjiArai | 0:5b88d5760320 | 191 | * set_timeout(-1) is equivalent to set_blocking(true) |
kenjiArai | 0:5b88d5760320 | 192 | * |
kenjiArai | 0:5b88d5760320 | 193 | * @param timeout Timeout in milliseconds |
kenjiArai | 0:5b88d5760320 | 194 | */ |
kenjiArai | 0:5b88d5760320 | 195 | virtual void set_timeout(int timeout) = 0; |
kenjiArai | 0:5b88d5760320 | 196 | |
kenjiArai | 0:5b88d5760320 | 197 | /** Register a callback on state change of the socket. |
kenjiArai | 0:5b88d5760320 | 198 | * |
kenjiArai | 0:5b88d5760320 | 199 | * The specified callback is called on state changes, such as when |
kenjiArai | 0:5b88d5760320 | 200 | * the socket can receive/send/accept successfully and when an error |
kenjiArai | 0:5b88d5760320 | 201 | * occurs. The callback may also be called spuriously without reason. |
kenjiArai | 0:5b88d5760320 | 202 | * |
kenjiArai | 0:5b88d5760320 | 203 | * The callback may be called in an interrupt context and should not |
kenjiArai | 0:5b88d5760320 | 204 | * perform expensive operations such as receive/send calls. |
kenjiArai | 0:5b88d5760320 | 205 | * |
kenjiArai | 0:5b88d5760320 | 206 | * Note! This is not intended as a replacement for a poll or attach-like |
kenjiArai | 0:5b88d5760320 | 207 | * asynchronous API, but rather as a building block for constructing |
kenjiArai | 0:5b88d5760320 | 208 | * such functionality. The exact timing of the registered function |
kenjiArai | 0:5b88d5760320 | 209 | * is not guaranteed and susceptible to change. |
kenjiArai | 0:5b88d5760320 | 210 | * |
kenjiArai | 0:5b88d5760320 | 211 | * @param func Function to call on state change. |
kenjiArai | 0:5b88d5760320 | 212 | */ |
kenjiArai | 0:5b88d5760320 | 213 | virtual void sigio(mbed::Callback<void()> func) = 0; |
kenjiArai | 0:5b88d5760320 | 214 | |
kenjiArai | 0:5b88d5760320 | 215 | /** Set socket options. |
kenjiArai | 0:5b88d5760320 | 216 | * |
kenjiArai | 0:5b88d5760320 | 217 | * setsockopt() allows an application to pass stack-specific options |
kenjiArai | 0:5b88d5760320 | 218 | * to the underlying stack using stack-specific level and option names, |
kenjiArai | 0:5b88d5760320 | 219 | * or to request generic options using levels from nsapi_socket_level_t. |
kenjiArai | 0:5b88d5760320 | 220 | * |
kenjiArai | 0:5b88d5760320 | 221 | * For unsupported options, NSAPI_ERROR_UNSUPPORTED is returned |
kenjiArai | 0:5b88d5760320 | 222 | * and the socket is unmodified. |
kenjiArai | 0:5b88d5760320 | 223 | * |
kenjiArai | 0:5b88d5760320 | 224 | * @param level Stack-specific protocol level or nsapi_socket_level_t. |
kenjiArai | 0:5b88d5760320 | 225 | * @param optname Level-specific option name. |
kenjiArai | 0:5b88d5760320 | 226 | * @param optval Option value. |
kenjiArai | 0:5b88d5760320 | 227 | * @param optlen Length of the option value. |
kenjiArai | 1:9db0e321a9f4 | 228 | * @retval NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 229 | * @retval NSAPI_ERROR_NO_SOCKET if socket is not open. |
kenjiArai | 1:9db0e321a9f4 | 230 | * @retval int Negative error code on failure, see @ref NetworkStack::setsockopt. |
kenjiArai | 0:5b88d5760320 | 231 | */ |
kenjiArai | 0:5b88d5760320 | 232 | virtual nsapi_error_t setsockopt(int level, int optname, const void *optval, unsigned optlen) = 0; |
kenjiArai | 0:5b88d5760320 | 233 | |
kenjiArai | 0:5b88d5760320 | 234 | /** Get socket options. |
kenjiArai | 0:5b88d5760320 | 235 | * |
kenjiArai | 0:5b88d5760320 | 236 | * getsockopt() allows an application to retrieve stack-specific options |
kenjiArai | 0:5b88d5760320 | 237 | * from the underlying stack using stack-specific level and option names, |
kenjiArai | 0:5b88d5760320 | 238 | * or to request generic options using levels from nsapi_socket_level_t. |
kenjiArai | 0:5b88d5760320 | 239 | * |
kenjiArai | 0:5b88d5760320 | 240 | * For unsupported options, NSAPI_ERROR_UNSUPPORTED is returned |
kenjiArai | 0:5b88d5760320 | 241 | * and the socket is unmodified. |
kenjiArai | 0:5b88d5760320 | 242 | * |
kenjiArai | 0:5b88d5760320 | 243 | * @param level Stack-specific protocol level or nsapi_socket_level_t. |
kenjiArai | 0:5b88d5760320 | 244 | * @param optname Level-specific option name. |
kenjiArai | 0:5b88d5760320 | 245 | * @param optval Destination for option value. |
kenjiArai | 0:5b88d5760320 | 246 | * @param optlen Length of the option value. |
kenjiArai | 1:9db0e321a9f4 | 247 | * @retval NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 248 | * @retval NSAPI_ERROR_NO_SOCKET if socket is not open. |
kenjiArai | 1:9db0e321a9f4 | 249 | * @retval int Negative error code on failure, see @ref NetworkStack::getsockopt. |
kenjiArai | 0:5b88d5760320 | 250 | */ |
kenjiArai | 0:5b88d5760320 | 251 | virtual nsapi_error_t getsockopt(int level, int optname, void *optval, unsigned *optlen) = 0; |
kenjiArai | 0:5b88d5760320 | 252 | |
kenjiArai | 0:5b88d5760320 | 253 | /** Accepts a connection on a socket. |
kenjiArai | 0:5b88d5760320 | 254 | * |
kenjiArai | 0:5b88d5760320 | 255 | * The server socket must be bound and set to listen for connections. |
kenjiArai | 0:5b88d5760320 | 256 | * On a new connection, returns connected network socket to call close() |
kenjiArai | 0:5b88d5760320 | 257 | * that deallocates the resources. Referencing a returned pointer after a close() |
kenjiArai | 0:5b88d5760320 | 258 | * call is not allowed and leads to undefined behavior. |
kenjiArai | 0:5b88d5760320 | 259 | * |
kenjiArai | 0:5b88d5760320 | 260 | * By default, accept blocks until incoming connection occurs. If socket is set to |
kenjiArai | 0:5b88d5760320 | 261 | * non-blocking or times out, error is set to NSAPI_ERROR_WOULD_BLOCK. |
kenjiArai | 0:5b88d5760320 | 262 | * |
kenjiArai | 0:5b88d5760320 | 263 | * @param error Pointer to storage of the error value or NULL. |
kenjiArai | 0:5b88d5760320 | 264 | * @return Pointer to a socket. |
kenjiArai | 0:5b88d5760320 | 265 | */ |
kenjiArai | 0:5b88d5760320 | 266 | virtual Socket *accept(nsapi_error_t *error = NULL) = 0; |
kenjiArai | 0:5b88d5760320 | 267 | |
kenjiArai | 0:5b88d5760320 | 268 | /** Listen for incoming connections. |
kenjiArai | 0:5b88d5760320 | 269 | * |
kenjiArai | 0:5b88d5760320 | 270 | * Marks the socket as a passive socket that can be used to accept |
kenjiArai | 0:5b88d5760320 | 271 | * incoming connections. |
kenjiArai | 0:5b88d5760320 | 272 | * |
kenjiArai | 0:5b88d5760320 | 273 | * @param backlog Number of pending connections that can be queued |
kenjiArai | 0:5b88d5760320 | 274 | * simultaneously, defaults to 1. |
kenjiArai | 0:5b88d5760320 | 275 | * @return NSAPI_ERROR_OK on success, negative error code on failure. |
kenjiArai | 0:5b88d5760320 | 276 | */ |
kenjiArai | 0:5b88d5760320 | 277 | virtual nsapi_error_t listen(int backlog = 1) = 0; |
kenjiArai | 0:5b88d5760320 | 278 | |
kenjiArai | 0:5b88d5760320 | 279 | /** Get the remote-end peer associated with this socket. |
kenjiArai | 0:5b88d5760320 | 280 | * |
kenjiArai | 0:5b88d5760320 | 281 | * Copy the remote peer address to a SocketAddress structure pointed by |
kenjiArai | 0:5b88d5760320 | 282 | * address parameter. Socket must be connected to have a peer address |
kenjiArai | 0:5b88d5760320 | 283 | * associated. |
kenjiArai | 0:5b88d5760320 | 284 | * |
kenjiArai | 0:5b88d5760320 | 285 | * @param address Pointer to SocketAddress structure. |
kenjiArai | 1:9db0e321a9f4 | 286 | * @retval NSAPI_ERROR_OK on success. |
kenjiArai | 1:9db0e321a9f4 | 287 | * @retval NSAPI_ERROR_NO_SOCKET if socket is not connected. |
kenjiArai | 1:9db0e321a9f4 | 288 | * @retval NSAPI_ERROR_NO_CONNECTION if the remote peer was not set. |
kenjiArai | 0:5b88d5760320 | 289 | */ |
kenjiArai | 0:5b88d5760320 | 290 | virtual nsapi_error_t getpeername(SocketAddress *address) = 0; |
kenjiArai | 0:5b88d5760320 | 291 | }; |
kenjiArai | 0:5b88d5760320 | 292 | |
kenjiArai | 0:5b88d5760320 | 293 | |
kenjiArai | 0:5b88d5760320 | 294 | #endif |
kenjiArai | 0:5b88d5760320 | 295 | |
kenjiArai | 0:5b88d5760320 | 296 | /** @}*/ |