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Diffstat (limited to 'tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h')
-rw-r--r-- | tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h b/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h new file mode 100644 index 0000000000..e2e1803e85 --- /dev/null +++ b/tool/mbed/mbed-sdk/libraries/net/lwip/Socket/Socket.h @@ -0,0 +1,104 @@ +/* Copyright (C) 2012 mbed.org, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef SOCKET_H_ +#define SOCKET_H_ + +#include "lwip/sockets.h" +#include "lwip/netdb.h" + +//DNS +inline struct hostent *gethostbyname(const char *name) { + return lwip_gethostbyname(name); +} + +inline int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop) { + return lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop); +} + +class TimeInterval; + +/** Socket file descriptor and select wrapper + */ +class Socket { +public: + /** Socket + */ + Socket(); + + /** Set blocking or non-blocking mode of the socket and a timeout on + blocking socket operations + \param blocking true for blocking mode, false for non-blocking mode. + \param timeout timeout in ms [Default: (1500)ms]. + */ + void set_blocking(bool blocking, unsigned int timeout=1500); + + /** Set socket options + \param level stack level (see: lwip/sockets.h) + \param optname option ID + \param optval option value + \param socklen_t length of the option value + \return 0 on success, -1 on failure + */ + int set_option(int level, int optname, const void *optval, socklen_t optlen); + + /** Get socket options + \param level stack level (see: lwip/sockets.h) + \param optname option ID + \param optval buffer pointer where to write the option value + \param socklen_t length of the option value + \return 0 on success, -1 on failure + */ + int get_option(int level, int optname, void *optval, socklen_t *optlen); + + /** Close the socket + \param shutdown free the left-over data in message queues + */ + int close(bool shutdown=true); + + ~Socket(); + +protected: + int _sock_fd; + int init_socket(int type); + + int wait_readable(TimeInterval& timeout); + int wait_writable(TimeInterval& timeout); + + bool _blocking; + unsigned int _timeout; + +private: + int select(struct timeval *timeout, bool read, bool write); +}; + +/** Time interval class used to specify timeouts + */ +class TimeInterval { + friend class Socket; + +public: + /** Time Interval + \param ms time interval expressed in milliseconds + */ + TimeInterval(unsigned int ms); + +private: + struct timeval _time; +}; + +#endif /* SOCKET_H_ */ |