1 files changed, 103 insertions, 0 deletions
diff --git a/qcom/qrtr/src/waiter.h b/qcom/qrtr/src/waiter.h
new file mode 100644
index 0000000..e311453
--- /dev/null
+++ b/qcom/qrtr/src/waiter.h
@@ -0,0 +1,103 @@
+#ifndef _WAITER_H_
+#define _WAITER_H_
+
+/** Waiter type. */
+struct waiter;
+
+/** Create a new waiter.
+ * @return Newly created waiter on success, NULL on failure.
+ */
+struct waiter *waiter_create(void);
+
+/** Destroy existing waiter.
+ * @param w waiter to destroy.
+ */
+void waiter_destroy(struct waiter *w);
+
+/** Wait for next ticket.
+ * @param w waiter.
+ */
+void waiter_wait(struct waiter *w);
+
+/** Wait for next ticket or timeout.
+ * @param w waiter.
+ * @param ms timeout in milliseconds.
+ * @return 0 on ticket; !0 on timeout.
+ */
+int waiter_wait_timeout(struct waiter *w, unsigned int ms);
+
+/** Synchronize timer-based tickets.
+ * @param w waiter.
+ */
+void waiter_synchronize(struct waiter *w);
+
+/** Waiter ticket type. */
+struct waiter_ticket;
+
+/** Add a null wait ticket to pool.
+ * @param w waiter
+ * @return wait ticket on success; NULL on failure.
+ */
+struct waiter_ticket *waiter_add_null(struct waiter *w);
+
+/** Add a file descriptor to the pool.
+ * @param w waiter.
+ * @param fd file descriptor.
+ * @return wait ticket on success; NULL on failure.
+ */
+struct waiter_ticket *waiter_add_fd(struct waiter *w, int fd);
+
+/** Add a timeout to the pool.
+ * @param w waiter.
+ * @param ms duration of timeout in milliseconds.
+ * @return wait ticket on success; NULL on failure.
+ */
+struct waiter_ticket *waiter_add_timeout(struct waiter *w, unsigned int ms);
+
+/** Set ticket type to null.
+ * @param tkt wait ticket.
+ */
+void waiter_ticket_set_null(struct waiter_ticket *tkt);
+
+/** Set ticket type to file descriptor.
+ * @param tkt wait ticket.
+ * @param fd file descriptor.
+ */
+void waiter_ticket_set_fd(struct waiter_ticket *tkt, int fd);
+
+/** Set ticket type to timeout.
+ * @param tkt wait ticket.
+ * @param ms timeout in milliseconds.
+ */
+void waiter_ticket_set_timeout(struct waiter_ticket *tkt, unsigned int ms);
+
+/** Destroy ticket.
+ * @param tkt wait ticket.
+ */
+void waiter_ticket_delete(struct waiter_ticket *tkt);
+
+/** Check to see if ticket has triggered.
+ * @param tkt wait ticket.
+ * @return 0 if triggered, !0 otherwise.
+ */
+int waiter_ticket_check(const struct waiter_ticket *tkt);
+
+
+/** Clear ticket trigger status.
+ * @param tkt wait ticket.
+ * @return 0 if triggered, !0 otherwise.
+ */
+int waiter_ticket_clear(struct waiter_ticket *tkt);
+
+/** Wait ticket callback function type. */
+typedef void (* waiter_ticket_cb_t)(void *, struct waiter_ticket *);
+
+/** Register callback function for ticket trigger.
+ * @param tkt wait ticket.
+ * @param cb_fn callback function.
+ * @param data private data to pass to callback function.
+ */
+void waiter_ticket_callback(struct waiter_ticket *tkt,
+		waiter_ticket_cb_t cb_fn, void *data);
+
+#endif