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Fix current_total_tick calculation

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This commit is contained in:
Miroslav Lichvar 2011-06-15 12:11:32 +02:00
parent 22fda21eae
commit c6e9065498
1 changed files with 3 additions and 21 deletions
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24
sys_linux.c
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@ -649,29 +649,11 @@ set_frequency(double freq_ppm)
double scaled_freq; /* what adjtimex & the kernel use */
double old_total_tick;
int required_delta_tick;
int neg; /* True if estimate is that local clock runs slow,
i.e. positive frequency correction required */
if (freq_ppm < 0.0) {
neg = 1;
freq_ppm = -freq_ppm;
} else {
neg = 0;
}
required_delta_tick = our_round(freq_ppm / dhz);
required_freq = freq_ppm - dhz * (double) required_delta_tick;
if (neg) {
/* Uncompensated local clock runs slow */
required_tick = nominal_tick + required_delta_tick;
scaled_freq = freq_scale * required_freq;
} else {
/* Uncompensated local clock runs fast */
required_tick = nominal_tick - required_delta_tick;
scaled_freq = -freq_scale * required_freq;
}
required_freq = -(freq_ppm - dhz * required_delta_tick);
required_tick = nominal_tick - required_delta_tick;
scaled_freq = freq_scale * required_freq;
min_allowed_tick = nominal_tick - max_tick_bias;
max_allowed_tick = nominal_tick + max_tick_bias;