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feat(httpd): add support for asynchronous request handling

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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>
This commit is contained in:
Chip Weinberger
2023-04-13 17:05:10 -07:00
committed by Harshit Malpani
parent 1d25057a24
commit 3824eba04d
11 changed files with 523 additions and 4 deletions
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11
components/esp_http_server/src/httpd_sess.c
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@@ -107,10 +107,13 @@ static int enum_function(struct sock_db *session, void *context)
if (session->fd == -1) {
return 0;
}
// Check/update lowest lru
if (session->lru_counter < ctx->lru_counter) {
ctx->lru_counter = session->lru_counter;
ctx->session = session;
// Only close sockets that are not in use
if (session->for_async_req == false) {
// Check/update lowest lru
if (session->lru_counter < ctx->lru_counter) {
ctx->lru_counter = session->lru_counter;
ctx->session = session;
}
}
break;
case HTTPD_TASK_CLOSE: