diff options
Diffstat (limited to 'utils/rtl_test.c')
| -rw-r--r-- | utils/rtl_test.c | 62 |
1 files changed, 48 insertions, 14 deletions
diff --git a/utils/rtl_test.c b/utils/rtl_test.c index 9a6cfda..9b44097 100644 --- a/utils/rtl_test.c +++ b/utils/rtl_test.c @@ -53,6 +53,21 @@ #define PPM_DURATION 10 #define PPM_DUMP_TIME 5 +struct time_generic +/* holds all the platform specific values */ +{ +#ifndef _WIN32 + time_t tv_sec; + long tv_nsec; +#else + long tv_sec; + long tv_nsec; + int init; + LARGE_INTEGER frequency; + LARGE_INTEGER ticks; +#endif +}; + static enum { NO_BENCHMARK, TUNER_BENCHMARK, @@ -134,21 +149,42 @@ static void underrun_test(unsigned char *buf, uint32_t len, int mute) } #ifndef _WIN32 -static int ppm_gettime(struct timespec *ts) +static int ppm_gettime(struct time_generic *tg) { int rv = ENOSYS; + struct timespec ts; #ifdef __unix__ - rv = clock_gettime(CLOCK_MONOTONIC, ts); + rv = clock_gettime(CLOCK_MONOTONIC, &ts); + tg->tv_sec = ts.tv_sec; + tg->tv_nsec = ts.tv_nsec; #elif __APPLE__ struct timeval tv; rv = gettimeofday(&tv, NULL); - ts->tv_sec = tv.tv_sec; - ts->tv_nsec = tv.tv_usec * 1000; + tg->tv_sec = tv.tv_sec; + tg->tv_nsec = tv.tv_usec * 1000; #endif return rv; } +#endif + +#ifdef _WIN32 +static int ppm_gettime(struct time_generic *tg) +{ + int rv; + int64_t frac; + if (!tg->init) { + QueryPerformanceFrequency(&tg->frequency); + tg->init = 1; + } + rv = QueryPerformanceCounter(&tg->ticks); + tg->tv_sec = tg->ticks.QuadPart / tg->frequency.QuadPart; + frac = (int64_t)(tg->ticks.QuadPart - (tg->tv_sec * tg->frequency.QuadPart)); + tg->tv_nsec = (long)(frac * 1000000000L / (int64_t)tg->frequency.QuadPart); + return !rv; +} +#endif static int ppm_report(uint64_t nsamples, uint64_t interval) { @@ -165,8 +201,8 @@ static void ppm_test(uint32_t len) static uint64_t interval = 0; static uint64_t nsamples_total = 0; static uint64_t interval_total = 0; - struct timespec ppm_now; - static struct timespec ppm_recent; + struct time_generic ppm_now; + static struct time_generic ppm_recent; static enum { PPM_INIT_NO, PPM_INIT_DUMP, @@ -174,6 +210,7 @@ static void ppm_test(uint32_t len) } ppm_init = PPM_INIT_NO; ppm_gettime(&ppm_now); + if (ppm_init != PPM_INIT_RUN) { /* * Kyle Keen wrote: @@ -189,11 +226,11 @@ static void ppm_test(uint32_t len) } if (ppm_init == PPM_INIT_DUMP && ppm_recent.tv_sec < ppm_now.tv_sec) return; - ppm_recent.tv_sec = ppm_now.tv_sec; - ppm_recent.tv_nsec = ppm_now.tv_nsec; + ppm_recent = ppm_now; ppm_init = PPM_INIT_RUN; return; } + nsamples += (uint64_t)(len / 2UL); interval = (uint64_t)(ppm_now.tv_sec - ppm_recent.tv_sec); if (interval < ppm_duration) @@ -206,19 +243,16 @@ static void ppm_test(uint32_t len) (int)((1000000000UL * nsamples) / interval), ppm_report(nsamples, interval), ppm_report(nsamples_total, interval_total)); - ppm_recent.tv_sec = ppm_now.tv_sec; - ppm_recent.tv_nsec = ppm_now.tv_nsec; + ppm_recent = ppm_now; nsamples = 0; } -#endif static void rtlsdr_callback(unsigned char *buf, uint32_t len, void *ctx) { underrun_test(buf, len, 0); -#ifndef _WIN32 + if (test_mode == PPM_BENCHMARK) ppm_test(len); -#endif } void e4k_benchmark(void) @@ -375,7 +409,7 @@ int main(int argc, char **argv) verbose_reset_buffer(dev); if ((test_mode == PPM_BENCHMARK) && !sync_mode) { - fprintf(stderr, "Reporting PPM error measurement every %i seconds...\n", ppm_duration); + fprintf(stderr, "Reporting PPM error measurement every %u seconds...\n", ppm_duration); fprintf(stderr, "Press ^C after a few minutes.\n"); } |