c++ - function with double mode of functionality -


i have function should have 2 modes of behaviour according place it's called from.

the core functionality insert table in database, has done in 2 different ways.

  1. normal mode: whenever it's called 1 time (outside of loop)

for example: //... myfunc(param1, record); // should insert single record database //...

  1. batch mode: whenever it's called inside of loop

for example:

    while(...){         myfunc(param1, record);       }

inside "while" loop, each time it's called, should store record in list , when reaches end of loop, should fetch records list , prepare "batch" query inserts in 1 go.

i wondering how make detect it's called in order switch corresponding mode , how detect has reached end of loop , on, should start getting records list, prepare query , execute it.

any tips or suggestions highly appreciated!

thanks heaps!

it not, in general, possible tell whether being called in loop, full source code access.

you might able caching , delaying actual database insert limited time in cases. go on caching until go x microseconds without new call, , insert cached data.

however, give strange effects if not in control of accesses database. in particular, should cached inserts time there query might affected them, in loop.


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