Adds template libs

esp32/lib/PsychicHttp/src/async_worker.h

@@ -0,0 +1,36 @@
+#ifndef async_worker_h
+#define async_worker_h
+
+#include "PsychicCore.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+
+#define ASYNC_WORKER_TASK_PRIORITY      5
+#define ASYNC_WORKER_TASK_STACK_SIZE    (4*1024)
+#define ASYNC_WORKER_COUNT 8
+
+// Async requests are queued here while they wait to be processed by the workers
+static QueueHandle_t async_req_queue;
+
+// Track the number of free workers at any given time
+static SemaphoreHandle_t worker_ready_count;
+
+// Each worker has its own thread
+static TaskHandle_t worker_handles[ASYNC_WORKER_COUNT];
+
+typedef esp_err_t (*httpd_req_handler_t)(httpd_req_t *req);
+
+typedef struct {
+    httpd_req_t* req;
+    httpd_req_handler_t handler;
+} httpd_async_req_t;
+
+bool is_on_async_worker_thread(void);
+esp_err_t submit_async_req(httpd_req_t *req, httpd_req_handler_t handler);
+void async_req_worker_task(void *p);
+void start_async_req_workers(void);
+
+esp_err_t httpd_req_async_handler_begin(httpd_req_t *r, httpd_req_t **out);
+esp_err_t httpd_req_async_handler_complete(httpd_req_t *r);
+
+#endif //async_worker_h