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Merge branch 'fix/async_handler_example_stack_overflow_issue_v5.3' into 'release/v5.3'

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fix(esp_http_server): Async handler example stack overflow fix (v5.3)

See merge request espressif/esp-idf!38997
This commit is contained in:
Mahavir Jain
2025-05-09 17:18:07 +08:00
parent 29c26da8d2 5722889fe3
commit df74d2bc70
2 changed files with 22 additions and 4 deletions
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6
examples/protocols/http_server/async_handlers/main/Kconfig.projbuild
View File

@ -7,4 +7,10 @@ menu "Example Configuration"
The maximum number of simultaneous async requests that the
web server can handle.
config EXAMPLE_ASYNC_WORKER_TASK_STACK_SIZE
int "Async Worker Task Stack Size"
default 2560
help
The stack size allocated for each async worker task.
endmenu

20
examples/protocols/http_server/async_handlers/main/main.c
View File

@ -32,7 +32,7 @@
*/
#define ASYNC_WORKER_TASK_PRIORITY 5
#define ASYNC_WORKER_TASK_STACK_SIZE 2048
#define ASYNC_WORKER_TASK_STACK_SIZE CONFIG_EXAMPLE_ASYNC_WORKER_TASK_STACK_SIZE
static const char *TAG = "example";
@ -133,7 +133,11 @@ static esp_err_t long_async_handler(httpd_req_t *req)
// send a request count
char s[100];
snprintf(s, sizeof(s), "<div>req: %u</div>\n", req_count);
httpd_resp_sendstr_chunk(req, s);
esp_err_t err = httpd_resp_sendstr_chunk(req, s);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to send string chunk: %s", esp_err_to_name(err));
return err;
}
// then every second, send a "tick"
for (int i = 0; i < 60; i++) {
@ -145,11 +149,19 @@ static esp_err_t long_async_handler(httpd_req_t *req)
// send a tick
snprintf(s, sizeof(s), "<div>%u</div>\n", i);
httpd_resp_sendstr_chunk(req, s);
err = httpd_resp_sendstr_chunk(req, s);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to send string chunk: %s", esp_err_to_name(err));
return err;
}
}
// send "complete"
httpd_resp_sendstr_chunk(req, NULL);
err = httpd_resp_sendstr_chunk(req, NULL);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to send string chunk: %s", esp_err_to_name(err));
return err;
}
return ESP_OK;
}