diff options
| -rw-r--r-- | drivers/unix/os_unix.cpp | 45 | ||||
| -rw-r--r-- | drivers/unix/os_unix.h | 2 |
2 files changed, 38 insertions, 9 deletions
diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp index 9936c95cf9..7d3e6b412c 100644 --- a/drivers/unix/os_unix.cpp +++ b/drivers/unix/os_unix.cpp @@ -45,6 +45,7 @@ #ifdef __APPLE__ #include <mach-o/dyld.h> +#include <mach/mach_time.h> #endif #if defined(__FreeBSD__) || defined(__OpenBSD__) @@ -64,6 +65,32 @@ #include <sys/wait.h> #include <unistd.h> +/// Clock Setup function (used by get_ticks_usec) +static uint64_t _clock_start = 0; +#if defined(__APPLE__) +static double _clock_scale = 0; +static void _setup_clock() { + mach_timebase_info_data_t info; + kern_return_t ret = mach_timebase_info(&info); + ERR_EXPLAIN("OS CLOCK IS NOT WORKING!"); + ERR_FAIL_COND(ret != 0); + _clock_scale = (double)info.numer / (double)info.denom; + _clock_start = mach_absolute_time() * _clock_scale; +} +#else +#if defined(CLOCK_MONOTONIC_RAW) && !defined(JAVASCRIPT_ENABLED) // This is a better clock on Linux. +#define GODOT_CLOCK CLOCK_MONOTONIC_RAW +#else +#define GODOT_CLOCK CLOCK_MONOTONIC +#endif +static void _setup_clock() { + struct timespec tv_now = { 0, 0 }; + ERR_EXPLAIN("OS CLOCK IS NOT WORKING!"); + ERR_FAIL_COND(clock_gettime(GODOT_CLOCK, &tv_now) != 0); + _clock_start = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L; +} +#endif + void OS_Unix::debug_break() { assert(false); @@ -126,8 +153,7 @@ void OS_Unix::initialize_core() { IP_Unix::make_default(); #endif - ticks_start = 0; - ticks_start = get_ticks_usec(); + _setup_clock(); struct sigaction sa; sa.sa_handler = &handle_sigchld; @@ -246,11 +272,16 @@ void OS_Unix::delay_usec(uint32_t p_usec) const { } uint64_t OS_Unix::get_ticks_usec() const { - struct timeval tv_now; - gettimeofday(&tv_now, NULL); - - uint64_t longtime = (uint64_t)tv_now.tv_usec + (uint64_t)tv_now.tv_sec * 1000000L; - longtime -= ticks_start; +#if defined(__APPLE__) + uint64_t longtime = mach_absolute_time() * _clock_scale; +#else + // Unchecked return. Static analyzers might complain. + // If _setup_clock() succeded, we assume clock_gettime() works. + struct timespec tv_now = { 0, 0 }; + clock_gettime(GODOT_CLOCK, &tv_now); + uint64_t longtime = ((uint64_t)tv_now.tv_nsec / 1000L) + (uint64_t)tv_now.tv_sec * 1000000L; +#endif + longtime -= _clock_start; return longtime; } diff --git a/drivers/unix/os_unix.h b/drivers/unix/os_unix.h index f4abfa2dd4..b702454603 100644 --- a/drivers/unix/os_unix.h +++ b/drivers/unix/os_unix.h @@ -42,8 +42,6 @@ class OS_Unix : public OS { - uint64_t ticks_start; - protected: // UNIX only handles the core functions. // inheriting platforms under unix (eg. X11) should handle the rest |