windows: Fix a build error.

[libserialport.git] / serialport.c

diff --git a/serialport.c b/serialport.c
index 15ca1fda35bc9e85f4404c18109c4cd7c9c10beb..2c1b68217eaf0747d93761fc5af61a6accaa45c4 100644 (file)
--- a/serialport.c
+++ b/serialport.c
@@ -49,25 +49,33 @@ static const struct std_baudrate std_baudrates[] = {
 
 void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler;
 
-static void get_time(struct timeval *time);
-
 static enum sp_return get_config(struct sp_port *port, struct port_data *data,
        struct sp_port_config *config);
 
 static enum sp_return set_config(struct sp_port *port, struct port_data *data,
        const struct sp_port_config *config);
 
+#ifndef _WIN32
 static void get_time(struct timeval *time)
 {
 #ifdef HAVE_CLOCK_GETTIME
        struct timespec ts;
-       clock_gettime(CLOCK_MONOTONIC, &ts);
+       if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1)
+               clock_gettime(CLOCK_REALTIME, &ts);
        time->tv_sec = ts.tv_sec;
        time->tv_usec = ts.tv_nsec / 1000;
+#elif defined(__APPLE__)
+       mach_timebase_info_data_t info;
+       mach_timebase_info(&info);
+       uint64_t ticks = mach_absolute_time();
+       uint64_t ns = (ticks * info.numer) / info.denom;
+       time->tv_sec = ns / 1000000000;
+       time->tv_usec = (ns % 1000000000) / 1000;
 #else
        gettimeofday(time, NULL);
 #endif
 }
+#endif
 
 SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr)
 {