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newlib: Fix adjtime, returns the amount of time remaining from any previous adjustment

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If the olddelta argument is not a null pointer, the adjtime function returns information
about any previous time adjustment that has not yet completed.

Closes: https://github.com/espressif/esp-idf/issues/5194
This commit is contained in:
KonstantinKondrashov 2020-06-08 22:57:38 +08:00
parent d3a400c159
commit 0c7e13f0cd
1 changed files with 12 additions and 12 deletions
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24
components/newlib/time.c
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@ -193,6 +193,18 @@ static void adjtime_corr_stop (void)
int adjtime(const struct timeval *delta, struct timeval *outdelta)
{
#if defined( WITH_FRC ) || defined( WITH_RTC )
if(outdelta != NULL){
_lock_acquire(&s_adjust_time_lock);
adjust_boot_time();
if (adjtime_start != 0) {
outdelta->tv_sec = adjtime_total_correction / 1000000L;
outdelta->tv_usec = adjtime_total_correction % 1000000L;
} else {
outdelta->tv_sec = 0;
outdelta->tv_usec = 0;
}
_lock_release(&s_adjust_time_lock);
}
if(delta != NULL){
int64_t sec = delta->tv_sec;
int64_t usec = delta->tv_usec;
@ -211,18 +223,6 @@ int adjtime(const struct timeval *delta, struct timeval *outdelta)
adjtime_total_correction = sec * 1000000L + usec;
_lock_release(&s_adjust_time_lock);
}
if(outdelta != NULL){
_lock_acquire(&s_adjust_time_lock);
adjust_boot_time();
if (adjtime_start != 0) {
outdelta->tv_sec = adjtime_total_correction / 1000000L;
outdelta->tv_usec = adjtime_total_correction % 1000000L;
} else {
outdelta->tv_sec = 0;
outdelta->tv_usec = 0;
}
_lock_release(&s_adjust_time_lock);
}
return 0;
#else
return -1;