kopia lustrzana https://github.com/espressif/esp-idf
305 wiersze
9.0 KiB
C
305 wiersze
9.0 KiB
C
// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef _ESP_TRANSPORT_H_
|
|
#define _ESP_TRANSPORT_H_
|
|
|
|
#include <esp_err.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
typedef struct esp_transport_list_t* esp_transport_list_handle_t;
|
|
typedef struct esp_transport_item_t* esp_transport_handle_t;
|
|
|
|
typedef int (*connect_func)(esp_transport_handle_t t, const char *host, int port, int timeout_ms);
|
|
typedef int (*io_func)(esp_transport_handle_t t, const char *buffer, int len, int timeout_ms);
|
|
typedef int (*io_read_func)(esp_transport_handle_t t, char *buffer, int len, int timeout_ms);
|
|
typedef int (*trans_func)(esp_transport_handle_t t);
|
|
typedef int (*poll_func)(esp_transport_handle_t t, int timeout_ms);
|
|
typedef int (*connect_async_func)(esp_transport_handle_t t, const char *host, int port, int timeout_ms);
|
|
typedef esp_transport_handle_t (*payload_transfer_func)(esp_transport_handle_t);
|
|
|
|
/**
|
|
* @brief Create transport list
|
|
*
|
|
* @return A handle can hold all transports
|
|
*/
|
|
esp_transport_list_handle_t esp_transport_list_init();
|
|
|
|
/**
|
|
* @brief Cleanup and free all transports, include itself,
|
|
* this function will invoke esp_transport_destroy of every transport have added this the list
|
|
*
|
|
* @param[in] list The list
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_FAIL
|
|
*/
|
|
esp_err_t esp_transport_list_destroy(esp_transport_list_handle_t list);
|
|
|
|
/**
|
|
* @brief Add a transport to the list, and define a scheme to indentify this transport in the list
|
|
*
|
|
* @param[in] list The list
|
|
* @param[in] t The Transport
|
|
* @param[in] scheme The scheme
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
*/
|
|
esp_err_t esp_transport_list_add(esp_transport_list_handle_t list, esp_transport_handle_t t, const char *scheme);
|
|
|
|
/**
|
|
* @brief This function will remove all transport from the list,
|
|
* invoke esp_transport_destroy of every transport have added this the list
|
|
*
|
|
* @param[in] list The list
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_ERR_INVALID_ARG
|
|
*/
|
|
esp_err_t esp_transport_list_clean(esp_transport_list_handle_t list);
|
|
|
|
/**
|
|
* @brief Get the transport by scheme, which has been defined when calling function `esp_transport_list_add`
|
|
*
|
|
* @param[in] list The list
|
|
* @param[in] tag The tag
|
|
*
|
|
* @return The transport handle
|
|
*/
|
|
esp_transport_handle_t esp_transport_list_get_transport(esp_transport_list_handle_t list, const char *scheme);
|
|
|
|
/**
|
|
* @brief Initialize a transport handle object
|
|
*
|
|
* @return The transport handle
|
|
*/
|
|
esp_transport_handle_t esp_transport_init();
|
|
|
|
/**
|
|
* @brief Cleanup and free memory the transport
|
|
*
|
|
* @param[in] t The transport handle
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_FAIL
|
|
*/
|
|
esp_err_t esp_transport_destroy(esp_transport_handle_t t);
|
|
|
|
/**
|
|
* @brief Get default port number used by this transport
|
|
*
|
|
* @param[in] t The transport handle
|
|
*
|
|
* @return the port number
|
|
*/
|
|
int esp_transport_get_default_port(esp_transport_handle_t t);
|
|
|
|
/**
|
|
* @brief Set default port number that can be used by this transport
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] port The port number
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_FAIL
|
|
*/
|
|
esp_err_t esp_transport_set_default_port(esp_transport_handle_t t, int port);
|
|
|
|
/**
|
|
* @brief Transport connection function, to make a connection to server
|
|
*
|
|
* @param t The transport handle
|
|
* @param[in] host Hostname
|
|
* @param[in] port Port
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - socket for will use by this transport
|
|
* - (-1) if there are any errors, should check errno
|
|
*/
|
|
int esp_transport_connect(esp_transport_handle_t t, const char *host, int port, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Non-blocking transport connection function, to make a connection to server
|
|
*
|
|
* @param t The transport handle
|
|
* @param[in] host Hostname
|
|
* @param[in] port Port
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - socket for will use by this transport
|
|
* - (-1) if there are any errors, should check errno
|
|
*/
|
|
int esp_transport_connect_async(esp_transport_handle_t t, const char *host, int port, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Transport read function
|
|
*
|
|
* @param t The transport handle
|
|
* @param buffer The buffer
|
|
* @param[in] len The length
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - Number of bytes was read
|
|
* - (-1) if there are any errors, should check errno
|
|
*/
|
|
int esp_transport_read(esp_transport_handle_t t, char *buffer, int len, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Poll the transport until readable or timeout
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - 0 Timeout
|
|
* - (-1) If there are any errors, should check errno
|
|
* - other The transport can read
|
|
*/
|
|
int esp_transport_poll_read(esp_transport_handle_t t, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Transport write function
|
|
*
|
|
* @param t The transport handle
|
|
* @param buffer The buffer
|
|
* @param[in] len The length
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - Number of bytes was written
|
|
* - (-1) if there are any errors, should check errno
|
|
*/
|
|
int esp_transport_write(esp_transport_handle_t t, const char *buffer, int len, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Poll the transport until writeable or timeout
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] timeout_ms The timeout milliseconds
|
|
*
|
|
* @return
|
|
* - 0 Timeout
|
|
* - (-1) If there are any errors, should check errno
|
|
* - other The transport can write
|
|
*/
|
|
int esp_transport_poll_write(esp_transport_handle_t t, int timeout_ms);
|
|
|
|
/**
|
|
* @brief Transport close
|
|
*
|
|
* @param t The transport handle
|
|
*
|
|
* @return
|
|
* - 0 if ok
|
|
* - (-1) if there are any errors, should check errno
|
|
*/
|
|
int esp_transport_close(esp_transport_handle_t t);
|
|
|
|
/**
|
|
* @brief Get user data context of this transport
|
|
*
|
|
* @param[in] t The transport handle
|
|
*
|
|
* @return The user data context
|
|
*/
|
|
void *esp_transport_get_context_data(esp_transport_handle_t t);
|
|
|
|
/**
|
|
* @brief Get transport handle of underlying protocol
|
|
* which can access this protocol payload directly
|
|
* (used for receiving longer msg multiple times)
|
|
*
|
|
* @param[in] t The transport handle
|
|
*
|
|
* @return Payload transport handle
|
|
*/
|
|
esp_transport_handle_t esp_transport_get_payload_transport_handle(esp_transport_handle_t t);
|
|
|
|
/**
|
|
* @brief Set the user context data for this transport
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param data The user data context
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
*/
|
|
esp_err_t esp_transport_set_context_data(esp_transport_handle_t t, void *data);
|
|
|
|
/**
|
|
* @brief Set transport functions for the transport handle
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] _connect The connect function pointer
|
|
* @param[in] _read The read function pointer
|
|
* @param[in] _write The write function pointer
|
|
* @param[in] _close The close function pointer
|
|
* @param[in] _poll_read The poll read function pointer
|
|
* @param[in] _poll_write The poll write function pointer
|
|
* @param[in] _destroy The destroy function pointer
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
*/
|
|
esp_err_t esp_transport_set_func(esp_transport_handle_t t,
|
|
connect_func _connect,
|
|
io_read_func _read,
|
|
io_func _write,
|
|
trans_func _close,
|
|
poll_func _poll_read,
|
|
poll_func _poll_write,
|
|
trans_func _destroy);
|
|
|
|
|
|
/**
|
|
* @brief Set transport functions for the transport handle
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] _connect_async_func The connect_async function pointer
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_FAIL
|
|
*/
|
|
esp_err_t esp_transport_set_async_connect_func(esp_transport_handle_t t, connect_async_func _connect_async_func);
|
|
|
|
/**
|
|
* @brief Set parent transport function to the handle
|
|
*
|
|
* @param[in] t The transport handle
|
|
* @param[in] _parent_transport The underlying transport getter pointer
|
|
*
|
|
* @return
|
|
* - ESP_OK
|
|
* - ESP_FAIL
|
|
*/
|
|
esp_err_t esp_transport_set_parent_transport_func(esp_transport_handle_t t, payload_transfer_func _parent_transport);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* _ESP_TRANSPORT_ */
|