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feat(mdns): Support user defined allocators

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Defines mem-alloc function optionally weak, so users can override them
and implement their own allocation, or a static/bss memory for the mdns
task stack.
This commit is contained in:
David Cermak
2025-02-13 15:26:23 +01:00
parent e65f22ab6c
commit 88162d1f3a
7 changed files with 109 additions and 62 deletions
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8
components/mdns/mdns.c
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@ -5466,12 +5466,10 @@ static esp_err_t _mdns_stop_timer(void)
static esp_err_t _mdns_task_create_with_caps(void)
{
ESP_LOGI(TAG, "mDNS task will be created from %s", MDNS_TASK_MEMORY_LOG);
esp_err_t ret = ESP_OK;
static StaticTask_t mdns_task_buffer;
// Allocate memory for the mDNS task's stack using the MDNS_TASK_MEMORY_CAPS
_mdns_stack_buffer = heap_caps_malloc(MDNS_SERVICE_STACK_DEPTH, MDNS_TASK_MEMORY_CAPS);
_mdns_stack_buffer = mdns_mem_task_malloc(MDNS_SERVICE_STACK_DEPTH);
ESP_GOTO_ON_FALSE(_mdns_stack_buffer != NULL, ESP_FAIL, err, TAG, "failed to allocate memory for the mDNS task's stack");
_mdns_service_task_handle = xTaskCreateStaticPinnedToCore(_mdns_service_task, "mdns", MDNS_SERVICE_STACK_DEPTH, NULL, MDNS_TASK_PRIORITY, _mdns_stack_buffer, &mdns_task_buffer, MDNS_TASK_AFFINITY);
@ -5480,7 +5478,7 @@ static esp_err_t _mdns_task_create_with_caps(void)
return ret;
err:
heap_caps_free(_mdns_stack_buffer);
mdns_mem_task_free(_mdns_stack_buffer);
return ret;
}
@ -5769,7 +5767,7 @@ void mdns_free(void)
free_delegated_hostnames();
_mdns_service_task_stop();
// at this point, the service task is deleted, so we can destroy the stack size
heap_caps_free(_mdns_stack_buffer);
mdns_mem_task_free(_mdns_stack_buffer);
for (i = 0; i < MDNS_MAX_INTERFACES; i++) {
for (j = 0; j < MDNS_IP_PROTOCOL_MAX; j++) {
mdns_pcb_deinit_local(i, j);