On 07/06/2020 19:16, Christo Crause via fpc-devel wrote: > I want to change the _haltproc for freertos ESP controllers to use > normal write/writeln functionality to send information to standard > output. On these targets the output is typically buffered serial > provided by the OS. Text output written just prior to setting the cpu > to sleep doesn't get sent, hence a flush is needed to complete data > transmission before putting the cpu to sleep. Looking at > consoleio.OpenIO there doesn't seem to be a convenient way to provide a > flush helper function. Also the RTL Flush procedure calls InOutFunc and > not FlushFunc. > > What is the proper way to hook a flush helper function into the existing > RTL infrastructure?
The flushfunc is called from fpc_write_end and fpc_writeln_end. Those helpers are automatically called after all of the individual write operations from a write(ln) statement have been processed. So if you implement/assign flushfunc and make it call your OS flush function, it should work fine. Jonas _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
