* The following list of build macros tries to "guess" if target OS is likely unix-like, and therefore can #include <unistd.h>
*/
# elif !defined(_WIN32) \
- && (defined(__unix__) || defined(__unix) \
- || defined(__midipix__) || defined(__VMS) || defined(__HAIKU__))
+ && ( defined(__unix__) || defined(__unix) \
+ || defined(__midipix__) || defined(__VMS) || defined(__HAIKU__) )
# if defined(__linux__) || defined(__linux)
# ifndef _POSIX_C_SOURCE
#endif /* PLATFORM_POSIX_VERSION */
+
/*-*********************************************
* Detect if isatty() and fileno() are available
************************************************/
return ((clockEnd - clockStart) * (PTime)rate.numer) / ((PTime)rate.denom);
}
-#elif (PLATFORM_POSIX_VERSION >= 200112L) \
- && (defined(__UCLIBC__) \
- || (defined(__GLIBC__) \
- && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 17) \
- || (__GLIBC__ > 2))))
+#elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */) \
+ && defined (CLOCK_MONOTONIC)
UTIL_time_t UTIL_getTime(void)
{
return time;
}
-UTIL_time_t UTIL_getSpanTime(UTIL_time_t begin, UTIL_time_t end)
+static UTIL_time_t UTIL_getSpanTime(UTIL_time_t begin, UTIL_time_t end)
{
UTIL_time_t diff;
if (end.tv_nsec < begin.tv_nsec) {
#if !defined (__VMS) && (defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) )
# include <stdint.h>
- typedef uint64_t PTime; /* Precise Time */
+ typedef uint64_t PTime; /* Precise Time */
#else
- typedef unsigned long long PTime; /* does not support compilers without long long support */
+ typedef unsigned long long PTime; /* does not support compilers without long long support */
#endif
******************************************/
#if defined(_WIN32) /* Windows */
- #define UTIL_TIME_INITIALIZER { { 0, 0 } }
typedef LARGE_INTEGER UTIL_time_t;
+ #define UTIL_TIME_INITIALIZER { { 0, 0 } }
#elif defined(__APPLE__) && defined(__MACH__)
#include <mach/mach_time.h>
- #define UTIL_TIME_INITIALIZER 0
typedef PTime UTIL_time_t;
+ #define UTIL_TIME_INITIALIZER 0
-#elif (PLATFORM_POSIX_VERSION >= 200112L) \
- && (defined(__UCLIBC__) \
- || (defined(__GLIBC__) \
- && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 17) \
- || (__GLIBC__ > 2))))
+#elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */) \
+ && defined (CLOCK_MONOTONIC)
+ typedef struct timespec UTIL_time_t; /* C11 defines struct timespes within time.h */
#define UTIL_TIME_INITIALIZER { 0, 0 }
- typedef struct timespec UTIL_freq_t;
- typedef struct timespec UTIL_time_t;
- UTIL_time_t UTIL_getSpanTime(UTIL_time_t begin, UTIL_time_t end);
-
-#else /* relies on standard C (note : clock_t measurements can be wrong when using multi-threading) */
+#else /* relies on standard C90 (note : clock_t measurements can be wrong when using multi-threading) */
typedef clock_t UTIL_time_t;
#define UTIL_TIME_INITIALIZER 0
#endif
+
UTIL_time_t UTIL_getTime(void);
PTime UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd);
PTime UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd);
-
-#define SEC_TO_MICRO 1000000
+#define SEC_TO_MICRO ((PTime)1000000)
PTime UTIL_clockSpanMicro(UTIL_time_t clockStart);
-
PTime UTIL_clockSpanNano(UTIL_time_t clockStart);
void UTIL_waitForNextTick(void);