Kev Mann / mbed-dev-OS5_10_4

RTC auf true

features/netsocket/InternetSocket.cpp@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* InternetSocket
kevman 0:38ceb79fef03 2 * Copyright (c) 2015 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16
kevman 0:38ceb79fef03 17 #include "InternetSocket.h"
kevman 0:38ceb79fef03 18 #include "platform/Callback.h"
kevman 0:38ceb79fef03 19
kevman 0:38ceb79fef03 20 using namespace mbed;
kevman 0:38ceb79fef03 21
kevman 0:38ceb79fef03 22 InternetSocket::InternetSocket()
kevman 0:38ceb79fef03 23 : _stack(0), _socket(0), _timeout(osWaitForever),
kevman 0:38ceb79fef03 24 _readers(0), _writers(0), _pending(0),
kevman 0:38ceb79fef03 25 _factory_allocated(false)
kevman 0:38ceb79fef03 26 {
kevman 0:38ceb79fef03 27 }
kevman 0:38ceb79fef03 28
kevman 0:38ceb79fef03 29 InternetSocket::~InternetSocket()
kevman 0:38ceb79fef03 30 {
kevman 0:38ceb79fef03 31 close();
kevman 0:38ceb79fef03 32 }
kevman 0:38ceb79fef03 33
kevman 0:38ceb79fef03 34 nsapi_error_t InternetSocket::open(NetworkStack *stack)
kevman 0:38ceb79fef03 35 {
kevman 0:38ceb79fef03 36 _lock.lock();
kevman 0:38ceb79fef03 37
kevman 0:38ceb79fef03 38 if (_stack != NULL || stack == NULL) {
kevman 0:38ceb79fef03 39 _lock.unlock();
kevman 0:38ceb79fef03 40 return NSAPI_ERROR_PARAMETER;
kevman 0:38ceb79fef03 41 }
kevman 0:38ceb79fef03 42 _stack = stack;
kevman 0:38ceb79fef03 43
kevman 0:38ceb79fef03 44 nsapi_socket_t socket;
kevman 0:38ceb79fef03 45 nsapi_error_t err = _stack->socket_open(&socket, get_proto());
kevman 0:38ceb79fef03 46 if (err) {
kevman 0:38ceb79fef03 47 _lock.unlock();
kevman 0:38ceb79fef03 48 return err;
kevman 0:38ceb79fef03 49 }
kevman 0:38ceb79fef03 50
kevman 0:38ceb79fef03 51 _socket = socket;
kevman 0:38ceb79fef03 52 _event = callback(this, &InternetSocket::event);
kevman 0:38ceb79fef03 53 _stack->socket_attach(_socket, Callback<void()>::thunk, &_event);
kevman 0:38ceb79fef03 54
kevman 0:38ceb79fef03 55 _lock.unlock();
kevman 0:38ceb79fef03 56 return NSAPI_ERROR_OK;
kevman 0:38ceb79fef03 57 }
kevman 0:38ceb79fef03 58
kevman 0:38ceb79fef03 59 nsapi_error_t InternetSocket::close()
kevman 0:38ceb79fef03 60 {
kevman 0:38ceb79fef03 61 _lock.lock();
kevman 0:38ceb79fef03 62
kevman 0:38ceb79fef03 63 nsapi_error_t ret = NSAPI_ERROR_OK;
kevman 0:38ceb79fef03 64 if (!_socket) {
kevman 0:38ceb79fef03 65 _lock.unlock();
kevman 0:38ceb79fef03 66 return NSAPI_ERROR_NO_SOCKET;
kevman 0:38ceb79fef03 67 }
kevman 0:38ceb79fef03 68
kevman 0:38ceb79fef03 69 // Just in case - tell the stack not to callback any more, then remove this socket.
kevman 0:38ceb79fef03 70 _stack->socket_attach(_socket, 0, 0);
kevman 0:38ceb79fef03 71 nsapi_socket_t socket = _socket;
kevman 0:38ceb79fef03 72 _socket = 0;
kevman 0:38ceb79fef03 73 ret = _stack->socket_close(socket);
kevman 0:38ceb79fef03 74 _stack = 0; // Invalidate the stack pointer - otherwise open() fails.
kevman 0:38ceb79fef03 75
kevman 0:38ceb79fef03 76 // Wakeup anything in a blocking operation
kevman 0:38ceb79fef03 77 // on this socket
kevman 0:38ceb79fef03 78 event();
kevman 0:38ceb79fef03 79
kevman 0:38ceb79fef03 80 // Wait until all readers and writers are gone
kevman 0:38ceb79fef03 81 while (_readers || _writers) {
kevman 0:38ceb79fef03 82 _lock.unlock();
kevman 0:38ceb79fef03 83 _event_flag.wait_any(FINISHED_FLAG, osWaitForever);
kevman 0:38ceb79fef03 84 _lock.lock();
kevman 0:38ceb79fef03 85 }
kevman 0:38ceb79fef03 86
kevman 0:38ceb79fef03 87 _lock.unlock();
kevman 0:38ceb79fef03 88
kevman 0:38ceb79fef03 89 // When allocated by accept() call, will destroy itself on close();
kevman 0:38ceb79fef03 90 if (_factory_allocated) {
kevman 0:38ceb79fef03 91 delete this;
kevman 0:38ceb79fef03 92 }
kevman 0:38ceb79fef03 93 return ret;
kevman 0:38ceb79fef03 94 }
kevman 0:38ceb79fef03 95
kevman 0:38ceb79fef03 96 int InternetSocket::modify_multicast_group(const SocketAddress &address, nsapi_socket_option_t socketopt)
kevman 0:38ceb79fef03 97 {
kevman 0:38ceb79fef03 98 nsapi_ip_mreq_t mreq;
kevman 0:38ceb79fef03 99
kevman 0:38ceb79fef03 100 // Set up group address
kevman 0:38ceb79fef03 101 mreq.imr_multiaddr = address.get_addr();
kevman 0:38ceb79fef03 102 mreq.imr_interface = nsapi_addr_t(); // Default address, NSAPI_UNSPEC
kevman 0:38ceb79fef03 103
kevman 0:38ceb79fef03 104 return this->setsockopt(NSAPI_SOCKET, socketopt, &mreq, sizeof(mreq));
kevman 0:38ceb79fef03 105 }
kevman 0:38ceb79fef03 106
kevman 0:38ceb79fef03 107 int InternetSocket::join_multicast_group(const SocketAddress &address)
kevman 0:38ceb79fef03 108 {
kevman 0:38ceb79fef03 109 return modify_multicast_group(address, NSAPI_ADD_MEMBERSHIP);
kevman 0:38ceb79fef03 110 }
kevman 0:38ceb79fef03 111
kevman 0:38ceb79fef03 112 int InternetSocket::leave_multicast_group(const SocketAddress &address)
kevman 0:38ceb79fef03 113 {
kevman 0:38ceb79fef03 114 return modify_multicast_group(address, NSAPI_DROP_MEMBERSHIP);
kevman 0:38ceb79fef03 115 }
kevman 0:38ceb79fef03 116
kevman 0:38ceb79fef03 117
kevman 0:38ceb79fef03 118 nsapi_error_t InternetSocket::bind(uint16_t port)
kevman 0:38ceb79fef03 119 {
kevman 0:38ceb79fef03 120 // Underlying bind is thread safe
kevman 0:38ceb79fef03 121 SocketAddress addr(0, port);
kevman 0:38ceb79fef03 122 return bind(addr);
kevman 0:38ceb79fef03 123 }
kevman 0:38ceb79fef03 124
kevman 0:38ceb79fef03 125 nsapi_error_t InternetSocket::bind(const char *address, uint16_t port)
kevman 0:38ceb79fef03 126 {
kevman 0:38ceb79fef03 127 // Underlying bind is thread safe
kevman 0:38ceb79fef03 128 SocketAddress addr(address, port);
kevman 0:38ceb79fef03 129 return bind(addr);
kevman 0:38ceb79fef03 130 }
kevman 0:38ceb79fef03 131
kevman 0:38ceb79fef03 132 nsapi_error_t InternetSocket::bind(const SocketAddress &address)
kevman 0:38ceb79fef03 133 {
kevman 0:38ceb79fef03 134 _lock.lock();
kevman 0:38ceb79fef03 135 nsapi_error_t ret;
kevman 0:38ceb79fef03 136
kevman 0:38ceb79fef03 137 if (!_socket) {
kevman 0:38ceb79fef03 138 ret = NSAPI_ERROR_NO_SOCKET;
kevman 0:38ceb79fef03 139 } else {
kevman 0:38ceb79fef03 140 ret = _stack->socket_bind(_socket, address);
kevman 0:38ceb79fef03 141 }
kevman 0:38ceb79fef03 142
kevman 0:38ceb79fef03 143 _lock.unlock();
kevman 0:38ceb79fef03 144 return ret;
kevman 0:38ceb79fef03 145 }
kevman 0:38ceb79fef03 146
kevman 0:38ceb79fef03 147 void InternetSocket::set_blocking(bool blocking)
kevman 0:38ceb79fef03 148 {
kevman 0:38ceb79fef03 149 // InternetSocket::set_timeout is thread safe
kevman 0:38ceb79fef03 150 set_timeout(blocking ? -1 : 0);
kevman 0:38ceb79fef03 151 }
kevman 0:38ceb79fef03 152
kevman 0:38ceb79fef03 153 void InternetSocket::set_timeout(int timeout)
kevman 0:38ceb79fef03 154 {
kevman 0:38ceb79fef03 155 _lock.lock();
kevman 0:38ceb79fef03 156
kevman 0:38ceb79fef03 157 if (timeout >= 0) {
kevman 0:38ceb79fef03 158 _timeout = (uint32_t)timeout;
kevman 0:38ceb79fef03 159 } else {
kevman 0:38ceb79fef03 160 _timeout = osWaitForever;
kevman 0:38ceb79fef03 161 }
kevman 0:38ceb79fef03 162
kevman 0:38ceb79fef03 163 _lock.unlock();
kevman 0:38ceb79fef03 164 }
kevman 0:38ceb79fef03 165
kevman 0:38ceb79fef03 166 nsapi_error_t InternetSocket::setsockopt(int level, int optname, const void *optval, unsigned optlen)
kevman 0:38ceb79fef03 167 {
kevman 0:38ceb79fef03 168 _lock.lock();
kevman 0:38ceb79fef03 169 nsapi_error_t ret;
kevman 0:38ceb79fef03 170
kevman 0:38ceb79fef03 171 if (!_socket) {
kevman 0:38ceb79fef03 172 ret = NSAPI_ERROR_NO_SOCKET;
kevman 0:38ceb79fef03 173 } else {
kevman 0:38ceb79fef03 174 ret = _stack->setsockopt(_socket, level, optname, optval, optlen);
kevman 0:38ceb79fef03 175 }
kevman 0:38ceb79fef03 176
kevman 0:38ceb79fef03 177 _lock.unlock();
kevman 0:38ceb79fef03 178 return ret;
kevman 0:38ceb79fef03 179 }
kevman 0:38ceb79fef03 180
kevman 0:38ceb79fef03 181 nsapi_error_t InternetSocket::getsockopt(int level, int optname, void *optval, unsigned *optlen)
kevman 0:38ceb79fef03 182 {
kevman 0:38ceb79fef03 183 _lock.lock();
kevman 0:38ceb79fef03 184 nsapi_error_t ret;
kevman 0:38ceb79fef03 185
kevman 0:38ceb79fef03 186 if (!_socket) {
kevman 0:38ceb79fef03 187 ret = NSAPI_ERROR_NO_SOCKET;
kevman 0:38ceb79fef03 188 } else {
kevman 0:38ceb79fef03 189 ret = _stack->getsockopt(_socket, level, optname, optval, optlen);
kevman 0:38ceb79fef03 190 }
kevman 0:38ceb79fef03 191
kevman 0:38ceb79fef03 192 _lock.unlock();
kevman 0:38ceb79fef03 193 return ret;
kevman 0:38ceb79fef03 194
kevman 0:38ceb79fef03 195 }
kevman 0:38ceb79fef03 196 void InternetSocket::event()
kevman 0:38ceb79fef03 197 {
kevman 0:38ceb79fef03 198 _event_flag.set(READ_FLAG | WRITE_FLAG);
kevman 0:38ceb79fef03 199
kevman 0:38ceb79fef03 200 _pending += 1;
kevman 0:38ceb79fef03 201 if (_callback && _pending == 1) {
kevman 0:38ceb79fef03 202 _callback();
kevman 0:38ceb79fef03 203 }
kevman 0:38ceb79fef03 204 }
kevman 0:38ceb79fef03 205
kevman 0:38ceb79fef03 206 void InternetSocket::sigio(Callback<void()> callback)
kevman 0:38ceb79fef03 207 {
kevman 0:38ceb79fef03 208 _lock.lock();
kevman 0:38ceb79fef03 209 _callback = callback;
kevman 0:38ceb79fef03 210 _lock.unlock();
kevman 0:38ceb79fef03 211 }
kevman 0:38ceb79fef03 212
kevman 0:38ceb79fef03 213 void InternetSocket::attach(Callback<void()> callback)
kevman 0:38ceb79fef03 214 {
kevman 0:38ceb79fef03 215 sigio(callback);
kevman 0:38ceb79fef03 216 }