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Diffstat (limited to 'src/tree_sitter/clock.h')
-rw-r--r-- | src/tree_sitter/clock.h | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/src/tree_sitter/clock.h b/src/tree_sitter/clock.h deleted file mode 100644 index 94545f3566..0000000000 --- a/src/tree_sitter/clock.h +++ /dev/null @@ -1,141 +0,0 @@ -#ifndef TREE_SITTER_CLOCK_H_ -#define TREE_SITTER_CLOCK_H_ - -#include <stdint.h> - -typedef uint64_t TSDuration; - -#ifdef _WIN32 - -// Windows: -// * Represent a time as a performance counter value. -// * Represent a duration as a number of performance counter ticks. - -#include <windows.h> -typedef uint64_t TSClock; - -static inline TSDuration duration_from_micros(uint64_t micros) { - LARGE_INTEGER frequency; - QueryPerformanceFrequency(&frequency); - return micros * (uint64_t)frequency.QuadPart / 1000000; -} - -static inline uint64_t duration_to_micros(TSDuration self) { - LARGE_INTEGER frequency; - QueryPerformanceFrequency(&frequency); - return self * 1000000 / (uint64_t)frequency.QuadPart; -} - -static inline TSClock clock_null(void) { - return 0; -} - -static inline TSClock clock_now(void) { - LARGE_INTEGER result; - QueryPerformanceCounter(&result); - return (uint64_t)result.QuadPart; -} - -static inline TSClock clock_after(TSClock base, TSDuration duration) { - return base + duration; -} - -static inline bool clock_is_null(TSClock self) { - return !self; -} - -static inline bool clock_is_gt(TSClock self, TSClock other) { - return self > other; -} - -#elif defined(CLOCK_MONOTONIC) && !defined(__APPLE__) - -// POSIX with monotonic clock support (Linux) -// * Represent a time as a monotonic (seconds, nanoseconds) pair. -// * Represent a duration as a number of microseconds. -// -// On these platforms, parse timeouts will correspond accurately to -// real time, regardless of what other processes are running. - -#include <time.h> -typedef struct timespec TSClock; - -static inline TSDuration duration_from_micros(uint64_t micros) { - return micros; -} - -static inline uint64_t duration_to_micros(TSDuration self) { - return self; -} - -static inline TSClock clock_now(void) { - TSClock result; - clock_gettime(CLOCK_MONOTONIC, &result); - return result; -} - -static inline TSClock clock_null(void) { - return (TSClock) {0, 0}; -} - -static inline TSClock clock_after(TSClock base, TSDuration duration) { - TSClock result = base; - result.tv_sec += duration / 1000000; - result.tv_nsec += (duration % 1000000) * 1000; - return result; -} - -static inline bool clock_is_null(TSClock self) { - return !self.tv_sec; -} - -static inline bool clock_is_gt(TSClock self, TSClock other) { - if (self.tv_sec > other.tv_sec) return true; - if (self.tv_sec < other.tv_sec) return false; - return self.tv_nsec > other.tv_nsec; -} - -#else - -// macOS or POSIX without monotonic clock support -// * Represent a time as a process clock value. -// * Represent a duration as a number of process clock ticks. -// -// On these platforms, parse timeouts may be affected by other processes, -// which is not ideal, but is better than using a non-monotonic time API -// like `gettimeofday`. - -#include <time.h> -typedef uint64_t TSClock; - -static inline TSDuration duration_from_micros(uint64_t micros) { - return micros * (uint64_t)CLOCKS_PER_SEC / 1000000; -} - -static inline uint64_t duration_to_micros(TSDuration self) { - return self * 1000000 / (uint64_t)CLOCKS_PER_SEC; -} - -static inline TSClock clock_null(void) { - return 0; -} - -static inline TSClock clock_now(void) { - return (uint64_t)clock(); -} - -static inline TSClock clock_after(TSClock base, TSDuration duration) { - return base + duration; -} - -static inline bool clock_is_null(TSClock self) { - return !self; -} - -static inline bool clock_is_gt(TSClock self, TSClock other) { - return self > other; -} - -#endif - -#endif // TREE_SITTER_CLOCK_H_ |