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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
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@ -7,4 +7,10 @@ menu "Example Configuration"
The maximum number of simultaneous async requests that the The maximum number of simultaneous async requests that the
web server can handle. 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 endmenu

20
examples/protocols/http_server/async_handlers/main/main.c
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@ -32,7 +32,7 @@
*/ */
#define ASYNC_WORKER_TASK_PRIORITY 5 #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"; static const char *TAG = "example";
@ -133,7 +133,11 @@ static esp_err_t long_async_handler(httpd_req_t *req)
// send a request count // send a request count
char s[100]; char s[100];
snprintf(s, sizeof(s), "<div>req: %u</div>\n", req_count); 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" // then every second, send a "tick"
for (int i = 0; i < 60; i++) { 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 // send a tick
snprintf(s, sizeof(s), "<div>%u</div>\n", i); 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" // 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; return ESP_OK;
} }