int NanostackInterface::socket_recv(void *handle, void *data, unsigned size)
{
// Validate parameters
NanostackSocket * socket = static_cast<NanostackSocket *>(handle);
if (NULL == handle) {
MBED_ASSERT(false);
return NSAPI_ERROR_NO_SOCKET;
}
nanostack_lock();
int ret;
if (socket->closed()) {
ret = NSAPI_ERROR_NO_CONNECTION;
} else if (socket->data_available()) {
ret = socket->data_copy_and_free(data, size, NULL, true);
} else {
ret = NSAPI_ERROR_WOULD_BLOCK;
}
nanostack_unlock();
tr_debug("socket_recv(socket=%p) sock_id=%d, ret=%i", socket, socket->socket_id, ret);
return ret;
}
int NanostackInterface::socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size)
{
// Validate parameters
NanostackSocket * socket = static_cast<NanostackSocket *>(handle);
if (NULL == handle) {
MBED_ASSERT(false);
return NSAPI_ERROR_NO_SOCKET;
}
if (NULL == buffer) {
MBED_ASSERT(false);
return NSAPI_ERROR_PARAMETER;
}
if (0 == size) {
MBED_ASSERT(false);
return NSAPI_ERROR_PARAMETER;
}
nanostack_lock();
int ret;
if (socket->closed()) {
ret = NSAPI_ERROR_NO_CONNECTION;
} else if (NANOSTACK_SOCKET_TCP == socket->proto) {
tr_error("recv_from() not supported with SOCKET_STREAM!");
ret = NSAPI_ERROR_UNSUPPORTED;
} else if (!socket->data_available()) {
ret = NSAPI_ERROR_WOULD_BLOCK;
} else {
ret = socket->data_copy_and_free(buffer, size, address, false);
}
nanostack_unlock();
tr_debug("socket_recvfrom(socket=%p) sock_id=%d, ret=%i", socket, socket->socket_id, ret);
return ret;
}