CopyTicks in indicator

[antony23]

According to docs, "when called from an indicator, CopyTick() immediately returns all available ticks of a symbol, and will launch synchronization of the tick database, if available data is not enough." 

My question is, how can i check data is sync, if it returns immediately without error and with result>0 ?

I tried  SymbolIsSynchronized(_Symbol) function, but it returns true event if all data gaps have not be filled by trading server yet.

[Stanislav Korotky]

Normally SymbolIsSynchronized should work (and worked for me). If you can locate the problem feel free to post a test case for the bug.

Also you probably want to check TerminalInfoInteger(TERMINAL_CONNECTED) before all other checks, and also look at SeriesInfoInteger(_Symbol, _Period, SERIES_SYNCHRONIZED).

[antony23]

Stanislav Korotky #:

Normally SymbolIsSynchronized should work (and worked for me). If you can locate the problem feel free to post a test case for the bug.

Also you probably want to check TerminalInfoInteger(TERMINAL_CONNECTED) before all other checks, and also look at SeriesInfoInteger(_Symbol, _Period, SERIES_SYNCHRONIZED).

I tried to also add these checks before copyTicks call, but alway give me true.

The simple test i do is disable network on my pc, wait some minutes, and reconnect. Indicator pass all three checks - TerminalInfoInteger(TERMINAL_CONNECTED) and  SeriesInfoInteger(_Symbol, _Period, SERIES_SYNCHRONIZED) and SymbolIsSynchronized(_Symbol) - call copyTicks using "from time" the time before disconnection, but give me only current tick, skipping the precedent ones... 

onCalculate is called with prev_calculated=0, more than one time, so terminal "signaling" indicator it is filling gaps, but i need to call copyTicks just when history is synch, not before. Is there no way to check this?

[antony23]

antony23 #:

I tried to also add these checks before copyTicks call, but alway give me true.

The simple test i do is disable network on my pc, wait some minutes, and reconnect. Indicator pass all three checks - TerminalInfoInteger(TERMINAL_CONNECTED) and  SeriesInfoInteger(_Symbol, _Period, SERIES_SYNCHRONIZED) and SymbolIsSynchronized(_Symbol) - call copyTicks using "from time" the time before disconnection, but give me only current tick, skipping the precedent ones... 

onCalculate is called with prev_calculated=0, more than one time, so terminal "signaling" indicator it is filling gaps, but i need to call copyTicks just when history is synch, not before. Is there no way to check this?

Seems i found the problem, when copyTicks result is greater than 0, we need also check the error code. In fact, i get 2 ticks as result of CopyTicks and error code ERR_HISTORY_TIMEOUT 4403. We have to check both, return value and error code.

[Alain Verleyen]

antony23 #:
Seems i found the problem, when copyTicks result is greater than 0, we need also check the error code. In fact, i get 2 ticks as result of CopyTicks and error code ERR_HISTORY_TIMEOUT 4403. We have to check both, return value and error code.

This is not how it's supposed to work.

From documentation :

Returned value

The number of copied tick or -1 in case of an error.