Basic Header file ready

include/event_loop.h

@@ -0,0 +1,43 @@
+#ifndef __EV_LOOP__
+#define __EV_LOOP__
+
+
+typedef struct task_ task_t;
+typedef struct event_loop_ event_loop_t;
+
+typedef EL_RES_T(*event_cbk)(void*);
+
+struct task_ {
+
+    event_cbk cbk;
+    void* arg;
+    struct task_* left, * right;
+};
+
+typedef enum {
+
+    EV_LOOP_IDLE,
+    EV_LOOP_BUSY
+} EV_LOOP_STATE;
+
+struct event_loop_ {
+
+    /* head to the start of the task array */
+    struct task_* task_array_head[TASK_PRIORITY_MAX];
+    /* Mutex to enforce Mutual exclusion enqueue/Deque
+     * Operation in task array. Also used to update event loop
+     * attributes in mutual exclusive way
+     */
+    pthread_mutex_t ev_loop_mutex;
+    /* State of event loop */
+    EV_LOOP_STATE ev_loop_state;
+    /* CV to suspened event loop thread */
+    pthread_cond_t ev_loop_cv;
+    /*  Event loop thread */
+    pthread_t* thread;
+    /* Current task which event loop thread is executing.
+     * NULL if event loop is resting in peace*/
+    struct task_* current_task;
+};
+
+#endif