esp-idf/examples/protocols
Chip Weinberger 3824eba04d
feat(httpd): add support for asynchronous request handling
This commit adds support for handling multiple requests simultaneously by introducing two new functions: `httpd_req_async_handler_begin()` and `httpd_req_async_handler_complete()`. These functions allow creating an asynchronous copy of a request that can be used on a separate thread and marking the asynchronous request as completed, respectively.

Additionally, a new flag `for_async_req` has been added to the `httpd_sess_t` struct to indicate if a socket is being used for an asynchronous request and should not be purged from the LRU cache.

An example have been added to demonstrate the usage of these new functions.

Closes https://github.com/espressif/esp-idf/issues/10594

Signed-off-by: Harshit Malpani <harshit.malpani@espressif.com>
2023-05-19 10:05:42 +05:30
..
coap_client lwip: Support IPv6 only mode 2023-02-27 08:53:34 +01:00
coap_server lwip: Support IPv6 only mode 2023-02-27 08:53:34 +01:00
esp_http_client lwip/linux: Add lwip support for networking component under linux 2023-05-05 05:03:39 +00:00
esp_local_ctrl lwip: Support IPv6 only mode 2023-02-27 08:53:34 +01:00
http2_request esp_netif/lwip: Fix core-locking config 2023-01-17 16:15:58 +01:00
http_request examples: enable build esp32c6 for wifi and network examples 2023-01-12 14:50:06 +08:00
http_server feat(httpd): add support for asynchronous request handling 2023-05-19 10:05:42 +05:30
https_mbedtls https_mbedtls: update example to support TLS 1.3 connection 2023-04-25 17:43:58 +05:30
https_request example: Add example to test ciphersuites set function 2023-04-27 19:22:27 +08:00
https_server esp-tls: Add build test for server session ticket option 2023-02-24 04:45:23 +00:00
https_x509_bundle tests: update Root certificate for the test endpoints 2023-05-16 15:56:29 +05:30
icmp_echo examples: avoid the divide by zero error 2023-04-22 21:56:33 +08:00
l2tap examples: enable build esp32c6 for wifi and network examples 2023-01-12 14:50:06 +08:00
linux_stubs/esp_stubs lwip/linux: Add lwip support for networking component under linux 2023-05-05 05:03:39 +00:00
modbus Merge branch 'feature/modbus_remove_example_tests' into 'master' 2023-02-28 19:50:26 +08:00
mqtt Updated CMakeList.txt for main component of mqtt/ssl_ds. 2023-03-17 16:03:52 +01:00
mqtt5 examples: fix format errors, remove -Wno-format 2023-02-14 15:46:54 +01:00
smtp_client examples: enable build esp32c6 for wifi and network examples 2023-01-12 14:50:06 +08:00
sntp sntp/test: Fixed flaky example test 2023-02-01 08:01:54 +01:00
sockets lwip/linux: Add lwip support for networking component under linux 2023-05-05 05:03:39 +00:00
static_ip examples: enable build esp32c6 for wifi and network examples 2023-01-12 14:50:06 +08:00
.build-test-rules.yml Merge branch 'feature/modbus_remove_example_tests' into 'master' 2023-02-28 19:50:26 +08:00
README.md common_components: add wifi connect console commands 2022-07-15 01:16:27 +08:00

Protocols Examples

Implementation of internet communication protocols and services.

See the README.md file in the upper level examples directory for more information about examples.

Establishing Wi-Fi or Ethernet Connection

About the example_connect() Function

Protocols examples use a simple helper function, example_connect(), to establish Wi-Fi and/or Ethernet connection. This function is implemented in examples/common_components/protocol_examples_common/include/protocol_examples_common.h, and has a very simple behavior: block until connection is established and IP address is obtained, then return. This function is used to reduce the amount of boilerplate and to keep the example code focused on the protocol or library being demonstrated.

The simple example_connect() function does not handle timeouts, does not gracefully handle various error conditions, and is only suited for use in examples. When developing real applications, this helper function needs to be replaced with full Wi-Fi / Ethernet connection handling code. Such code can be found in examples/wifi/getting_started/ and examples/ethernet/basic/ examples.

Configuring the Example

To configure the example to use Wi-Fi, Ethernet or both connections, open the project configuration menu (idf.py menuconfig) and navigate to "Example Connection Configuration" menu. Select either "Wi-Fi" or "Ethernet" or both in the "Connect using" choice.

When connecting using Wi-Fi, enter SSID and password of your Wi-Fi access point into the corresponding fields. If connecting to an open Wi-Fi network, keep the password field empty.

When connecting using Ethernet, set up PHY type and configuration in the provided fields. If using Ethernet for the first time, it is recommended to start with the Ethernet example readme, which contains instructions for connecting and configuring the PHY. Once Ethernet example obtains IP address successfully, proceed to the protocols example and set the same configuration options.

Disabling IPv6

By default, example_connect() function waits until Wi-Fi or Ethernet connection is established, and IPv4 address and IPv6 link-local address are obtained. In network environments where IPv6 link-local address cannot be obtained, disable "Obtain IPv6 link-local address" option found in "Example Connection Configuration" menu.