Move timing routines to separate file.

[libserialport.git] / libserialport_internal.h

diff --git a/libserialport_internal.h b/libserialport_internal.h
index 77c31a5cc2b94a78ba64398f08dbed5158bfd65e..fde4883cf77d41f43f15cbb94a2eeae2ff61646c 100644 (file)
--- a/libserialport_internal.h
+++ b/libserialport_internal.h
@@ -251,4 +251,35 @@ SP_PRIV struct sp_port **list_append(struct sp_port **list, const char *portname
 SP_PRIV enum sp_return get_port_details(struct sp_port *port);
 SP_PRIV enum sp_return list_ports(struct sp_port ***list);
 
+/* Timing abstraction */
+
+struct time {
+#ifdef _WIN32
+       int64_t ticks;
+#else
+       struct timeval tv;
+#endif
+};
+
+struct timeout {
+       unsigned int ms, limit_ms;
+       struct time start, now, end, delta, delta_max;
+       struct timeval delta_tv;
+       bool calls_started, overflow;
+};
+
+SP_PRIV void time_get(struct time *time);
+SP_PRIV void time_set_ms(struct time *time, unsigned int ms);
+SP_PRIV void time_add(const struct time *a, const struct time *b, struct time *result);
+SP_PRIV void time_sub(const struct time *a, const struct time *b, struct time *result);
+SP_PRIV bool time_greater(const struct time *a, const struct time *b);
+SP_PRIV void time_as_timeval(const struct time *time, struct timeval *tv);
+SP_PRIV unsigned int time_as_ms(const struct time *time);
+SP_PRIV void timeout_start(struct timeout *timeout, unsigned int timeout_ms);
+SP_PRIV void timeout_limit(struct timeout *timeout, unsigned int limit_ms);
+SP_PRIV bool timeout_check(struct timeout *timeout);
+SP_PRIV void timeout_update(struct timeout *timeout);
+SP_PRIV struct timeval *timeout_timeval(struct timeout *timeout);
+SP_PRIV unsigned int timeout_remaining_ms(struct timeout *timeout);
+
 #endif