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esp_http_client: add flush response

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Signed-off-by: Shubham Kulkarni <shubham.kulkarni@espressif.com>

Merges: https://github.com/espressif/esp-idf/pull/5845
Closes: https://github.com/espressif/esp-idf/issues/5814
This commit is contained in:
boarchuz 2020-09-09 18:50:04 +10:00 committed by Shubham Kulkarni
parent bb8981903e
commit bf942a60f3
2 changed files with 35 additions and 0 deletions
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20
components/esp_http_client/esp_http_client.c
View File

@ -1377,6 +1377,26 @@ int esp_http_client_read_response(esp_http_client_handle_t client, char *buffer,
return read_len;
}
esp_err_t esp_http_client_flush_response(esp_http_client_handle_t client, int *len)
{
if (client == NULL) {
ESP_LOGE(TAG, "client must not be NULL");
return ESP_ERR_INVALID_ARG;
}
int read_len = 0;
while (!esp_http_client_is_complete_data_received(client)) {
int data_read = esp_http_client_get_data(client);
if (data_read < 0) {
return ESP_FAIL;
}
read_len += data_read;
}
if (len) {
*len = read_len;
}
return ESP_OK;
}
esp_err_t esp_http_client_get_url(esp_http_client_handle_t client, char *url, const int len)
{
if (client == NULL || url == NULL) {

15
components/esp_http_client/include/esp_http_client.h
View File

@ -524,6 +524,21 @@ bool esp_http_client_is_complete_data_received(esp_http_client_handle_t client);
int esp_http_client_read_response(esp_http_client_handle_t client, char *buffer, int len);
/**
* @brief Process all remaining response data
* This uses an internal buffer to repeatedly receive, parse, and discard response data until complete data is processed.
* As no additional user-supplied buffer is required, this may be preferrable to `esp_http_client_read_response` in situations where the content of the response may be ignored.
*
* @param[in] client The esp_http_client handle
* @param len Length of data discarded
*
* @return
* - ESP_OK If successful, len will have discarded length
* - ESP_FAIL If failed to read response
* - ESP_ERR_INVALID_ARG If the client is NULL
*/
int esp_http_client_flush_response(esp_http_client_handle_t client, int *len);
/**
* @brief Get URL from client
*