[2.0.0] Fix dropped SSL connection when buffer gets full. #4821
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mbedTLS requires repeated calls to mbedtls_ssl_write() whenever it returns MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE. this happens when the client sends data faster then the server or the connection can handle. Fixes: espressif/arduino-esp32#2494
everslick
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me-no-dev
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Feb 18, 2021
| return handle_error(ret); | ||
| } else{ | ||
| log_v("Returning with %d bytes written", ret); //for low level debug | ||
| while ((ret = mbedtls_ssl_write(&ssl_client->ssl_ctx, data, len)) <= 0) { |
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I am a bit worried about such busy while loop. Add at least vTaskDelay(2); to ensure that task switching will work
Add vTaskDelay()
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Mar 31, 2021
* Fix dropped SSL connection when buffer gets full. mbedTLS requires repeated calls to mbedtls_ssl_write() whenever it returns MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE. this happens when the client sends data faster then the server or the connection can handle. Fixes: #2494 * Update ssl_client.cpp Add vTaskDelay()
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mbedTLS requires repeated calls to mbedtls_ssl_write() whenever it returns MBEDTLS_ERR_SSL_WANT_READ or MBEDTLS_ERR_SSL_WANT_WRITE. this happens when the client sends data faster then the server or the connection can handle.
Fixes: #2494