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120
component/common/network/websocket/libwsclient.h
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120
component/common/network/websocket/libwsclient.h
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#ifndef EASYWSCLIENT_H
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#define EASYWSCLIENT_H
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#include <platform/platform_stdlib.h>
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/****************Define the debug message level*********************/
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#define DEBUG_WSCLIENT 1
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#define WSCLIENT_LOG(level, fmt, ...) printf("\n\r[WSCLIENT %s] %s: " fmt "\n", level, __FUNCTION__, ##__VA_ARGS__)
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#if DEBUG_WSCLIENT == 2
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#define WSCLIENT_DEBUG(fmt, ...) WSCLIENT_LOG("DEBUG", fmt, ##__VA_ARGS__)
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#else
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#define WSCLIENT_DEBUG(fmt, ...)
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#endif
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#if DEBUG_WSCLIENT
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#define WSCLIENT_ERROR(fmt, ...) WSCLIENT_LOG("ERROR", fmt, ##__VA_ARGS__)
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#else
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#define WSCLIENT_ERROR(fmt, ...)
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#endif
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/*******************************************************************/
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/****************Define the structures used*************************/
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typedef enum{
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CLOSING,
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CLOSED,
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CONNECTING,
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OPEN
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} readyStateValues;
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struct wsheader_type{
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unsigned header_size;
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int fin;
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int mask;
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enum opcode_type {
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CONTINUATION = 0x0,
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TEXT_FRAME = 0x1,
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BINARY_FRAME = 0x2,
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CLOSE = 8,
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PING = 9,
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PONG = 0xa,
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} opcode;
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int N0;
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uint64_t N;
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uint8_t masking_key[4];
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};
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struct _wsclient_context;
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struct _ssl_context;
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struct ssl_fun_ops{
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int (*memory_set_own)( void * (*malloc_func)( size_t ),void (*free_func)( void * ) );
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int (*net_connect)( int *fd, const char *host, int port );
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int (*ssl_init)( struct _ssl_context *ssl );
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void (*ssl_set_endpoint)( struct _ssl_context *ssl, int endpoint );
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void (*ssl_set_authmode)( struct _ssl_context *ssl, int authmode );
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void (*ssl_set_rng)( struct _ssl_context *ssl,
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int (*f_rng)(void *, unsigned char *, size_t),
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void *p_rng );
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void (*ssl_set_bio)( struct _ssl_context *ssl,
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int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,
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int (*f_send)(void *, const unsigned char *, size_t), void *p_send );
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int (*ssl_handshake)( struct _ssl_context *ssl );
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void (*net_close)( int fd );
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void (*ssl_free)( struct _ssl_context *ssl );
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int (*ssl_read)( struct _ssl_context *ssl, unsigned char *buf, size_t len );
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int (*ssl_write)( struct _ssl_context *ssl, const unsigned char *buf, size_t len );
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const char *(*ssl_get_ciphersuite)( const struct _ssl_context *ssl );
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int (*net_recv)( void *ctx, unsigned char *buf, size_t len );
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int (*net_send)( void *ctx, const unsigned char *buf, size_t len );
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};
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struct ws_fun_ops{
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int (*hostname_connect)(struct _wsclient_context *wsclient);
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void (*client_close)(struct _wsclient_context *wsclient);
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int (*client_send)(struct _wsclient_context *wsclient, unsigned char *data, size_t data_len);
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int (*client_read)(struct _wsclient_context *wsclient, unsigned char *data, size_t data_len);
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struct ssl_fun_ops ssl_fun_ops;
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};
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typedef struct _wsclient_context{
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char host[128];
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char path[128];
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char origin[200];
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int port;
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uint8_t use_ssl;
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int sockfd;
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readyStateValues readyState;
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int tx_len;
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void *ssl;
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uint8_t *txbuf;
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uint8_t *rxbuf;
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uint8_t *receivedData;
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struct ws_fun_ops fun_ops;
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}wsclient_context;
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/*******************************************************************/
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/****************General functions used by wsclient*****************/
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void ws_get_random_bytes(void *buf, size_t len);
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void* ws_malloc(unsigned int size);
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void ws_free(void *buf);
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int ws_client_handshake(wsclient_context *wsclient);
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int ws_check_handshake(wsclient_context *wsclient);
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void ws_sendData(uint8_t type, size_t message_size, uint8_t* message, int useMask, wsclient_context *wsclient);
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/*******************************************************************/
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/*************Functions used by wsclient without SSL****************/
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int ws_hostname_connect(wsclient_context *wsclient);
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int ws_client_read(wsclient_context *wsclient, unsigned char *data, size_t data_len);
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int ws_client_send(wsclient_context *wsclient, unsigned char *data, size_t data_len);
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void ws_client_close(wsclient_context *wsclient);
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/*******************************************************************/
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/***************Functions used by wsclient with SSL*****************/
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int wss_hostname_connect(wsclient_context *wsclient);
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int wss_client_read(wsclient_context *wsclient, unsigned char *data, size_t data_len);
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int wss_client_send(wsclient_context *wsclient, unsigned char *data, size_t data_len);
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void wss_client_close(wsclient_context *wsclient);
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/*******************************************************************/
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#endif
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108
component/common/network/websocket/wsclient_api.h
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108
component/common/network/websocket/wsclient_api.h
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#ifndef WSCLIENT_H
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#define WSCLIENT_H
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#include <websocket/libwsclient.h>
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/******Define the maximum bytes of data send and receive********/
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#define MAX_DATA_LEN 1500
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/****************Define if using the polarssl*******************/
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#define USING_SSL
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/******************Define the function used*********************/
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#ifdef USING_SSL
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int wss_set_fun_ops(wsclient_context *wsclient);
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#define wsclient_set_fun_ops(wsclient) wss_set_fun_ops(wsclient)
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#else
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int ws_set_fun_ops(wsclient_context *wsclient);
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#define wsclient_set_fun_ops(wsclient) ws_set_fun_ops(wsclient)
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#endif
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/***************************************************************/
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/*************************************************************************************************
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** Function Name : create_wsclient
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** Description : Creating the websocket client context structure
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** Input : url:websocket server's url
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** port:websocket server's port, if not given, default 80 for "ws", 443 for "wss"
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** origin: the address or url of your self
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** Return : Created: websocket client context structure
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** Failed: NULL
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**************************************************************************************************/
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wsclient_context *create_wsclient(char *url, int port,char *path, char* origin);
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/*************************************************************************************************
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** Function Name : ws_connect_url
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** Description : Connecting to the websocket server
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** Input : wsclient: the websocket client context created by create_wsclientfunction
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** Return : Connected: the socket value
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** Failed: -1
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**************************************************************************************************/
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int ws_connect_url(wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_send
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** Description : Create the sending string data and copy to tx_buf
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** Input : message: the string that send to server(cannot exceeding the MAX_DATA_LEN
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** message_len: the length of the string
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** use_mask: 0/1; 1 means using mask for bynary
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** wsclient: the websocket client context
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** Return : None
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**************************************************************************************************/
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void ws_send(char* message, int message_len, int use_mask, wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_sendBinary
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** Description : Create the sending binary data and copy to tx_buf
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** Input : message: the binary that send to server(cannot exceeding the MAX_DATA_LEN
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** message_len: the length of the binary
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** use_mask: 0/1; 1 means using mask for bynary
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** wsclient: the websocket client context
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** Return : None
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**************************************************************************************************/
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void ws_sendBinary(uint8_t* message, int message_len, int use_mask, wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_sendPing
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** Description : Sending Ping to websocket server
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** Input : wsclient: the websocket client context
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** Return : None
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**************************************************************************************************/
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void ws_sendPing(wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_poll
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** Description : Receicing data from server and send the data in tx_buf
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** Input : timeout(in milliseconds)
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wsclient: the websocket client context
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** Return : None
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**************************************************************************************************/
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void ws_poll(int timeout, wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_dispatch
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** Description : callback function when getting message from server
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** Input : function that resolve the message received and the message length
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** Return : None
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**************************************************************************************************/
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void ws_dispatch(void (*callback)(wsclient_context *, int)) ;
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/*************************************************************************************************
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** Function Name : ws_getReadyState
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** Description : Getting the connection status
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** Input : wsclient: the websocket client context
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** Return : readyStateValues(4 types:CLOSING, CLOSED, CONNECTING, OPEN)
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**************************************************************************************************/
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readyStateValues ws_getReadyState(wsclient_context *wsclient);
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/*************************************************************************************************
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** Function Name : ws_close
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** Description : Closing the connection with websocket server
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** Input : wsclient: the websocket client context
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** Return : None
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**************************************************************************************************/
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void ws_close(wsclient_context *wsclient);
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#endif
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