ESP8266: error: 'getLocalTime' was not declared in this scope

Question

I am getting

error: 'getLocalTime' was not declared in this scope

when I am compiling this code for ESP8266, however works for ESP32:

#include "time.h"
void gettime()
{
 static int16_t delaycount = 0 ; // To reduce number of NTP requests
 static int16_t retrycount = 100 ;
 if ( timeinfo.tm_year ) // Legal time found?
 {
 sprintf ( timetxt, "%02d:%02d:%02d", // Yes, format to a string
 timeinfo.tm_hour,
 timeinfo.tm_min,
 timeinfo.tm_sec ) ;
 }
 if ( --delaycount <= 0 ) // Sync every few hours
 {
 delaycount = 7200 ; // Reset counter
 if ( timeinfo.tm_year ) // Legal time found?
 {
 dbgprint ( "Sync TOD, old value is %s", timetxt ) ;
 }
 dbgprint ( "Sync TOD" ) ;
 if ( !getLocalTime ( &timeinfo ) ) // Read from NTP server
 {
 dbgprint ( "Failed to obtain time!" ) ; // Error
 timeinfo.tm_year = 0 ; // Set current time to illegal
 if ( retrycount ) // Give up syncing?
 {
 retrycount-- ; // No try again
 delaycount = 5 ; // Retry after 5 seconds
 }
 }
 else
 {
 sprintf ( timetxt, "%02d:%02d:%02d", // Format new time to a string
 timeinfo.tm_hour,
 timeinfo.tm_min,
 timeinfo.tm_sec ) ;
 dbgprint ( "Sync TOD, new value is %s", timetxt ) ;
 }
 }
}

What shall I replace getLocalTime with?

Answer 1

It looks like the esp8266 Arduino core don't have a similar function.

The getLocalTime in esp32 arduino core is a simple function implemented in esp32-hal-time.c.

bool getLocalTime(struct tm * info, uint32_t ms)
{
 uint32_t start = millis();
 time_t now;
 while((millis()-start) <= ms) {
 time(&now);
 localtime_r(&now, info);
 if(info->tm_year > (2016 - 1900)){
 return true;
 }
 delay(10);
 }
 return false;
}

The function compiles on esp8266 arduino as it is so you can copy it to your sketch.

• Murad: there are two parameters you need to pass. Whereas in my example is only one
• Juraj: @BJackson, the declaration in header file has a default value for the second parameter bool getLocalTime(struct tm * info, uint32_t ms = 5000); (you can't set default value on function definition). you can call the function with 5000 as second parameter or remove the parameter and use the fixed value in the function.
• Murad: It works, thanks. But is there a ESP8266 way? I was looking at github.com/scanlime/esp8266-Arduino/blob/master/cores/esp8266/… and there is nothing similar
• Juraj: @BJackson, it is a only convenience function only to wait with timeout until the very first response from NTP server is received and RTC is set