#include "vlog.h"
#define THIS_MODULE VLM_timeval
-/* Initialized? */
-static bool inited;
-
/* The clock to use for measuring time intervals. This is CLOCK_MONOTONIC by
* preference, but on systems that don't have a monotonic clock we fall back
* to CLOCK_REALTIME. */
static clockid_t monotonic_clock;
-/* Has a timer tick occurred? */
-static volatile sig_atomic_t wall_tick;
-static volatile sig_atomic_t monotonic_tick;
+/* Has a timer tick occurred?
+ *
+ * We initialize these to true to force time_init() to get called on the first
+ * call to time_msec() or another function that queries the current time. */
+static volatile sig_atomic_t wall_tick = true;
+static volatile sig_atomic_t monotonic_tick = true;
/* The current time, as of the last refresh. */
static struct timespec wall_time;
static void log_poll_interval(long long int last_wakeup,
const struct rusage *last_rusage);
-/* Initializes the timetracking module. */
+/* Initializes the timetracking module.
+ *
+ * It is not necessary to call this function directly, because other time
+ * functions will call it automatically, but it doesn't hurt. */
void
time_init(void)
{
+ static bool inited;
if (inited) {
return;
}
+ inited = true;
coverage_init();
- inited = true;
- time_refresh();
-
if (!clock_gettime(CLOCK_MONOTONIC, &monotonic_time)) {
monotonic_clock = CLOCK_MONOTONIC;
} else {
void
time_disable_restart(void)
{
+ time_init();
set_up_signal(0);
}
void
time_enable_restart(void)
{
+ time_init();
set_up_signal(SA_RESTART);
}
static void
refresh_wall(void)
{
+ time_init();
clock_gettime(CLOCK_REALTIME, &wall_time);
wall_tick = false;
}
static void
refresh_wall_if_ticked(void)
{
- assert(inited);
if (wall_tick) {
refresh_wall();
}
static void
refresh_monotonic_if_ticked(void)
{
- assert(inited);
if (monotonic_tick) {
refresh_monotonic();
}