RBAPI(bool) com_Send(int com, unsigned char* buf, int bsize) {
unsigned long nowtime;
int numbytes = 0, bsize2;
if (COM_duplex[com] == COM_HDUPLEX_RTS)
{
MPOS_Start();
set_rts(com);
}
while (bsize > 0)
{
bsize2 = (bsize <= MAXRWSIZE)? bsize : MAXRWSIZE;
for (nowtime = timer_nowtime(); bsize2 > 0; buf += numbytes, bsize2 -= numbytes, bsize -= numbytes)
{
#if defined(RB_MSVC_WIN32) || defined(RB_MSVC_WINCE)
if (WriteFile(COM_info[com].fp, buf, bsize2, (LPDWORD)&numbytes, NULL) == FALSE)
{
err_SetMsg(ERROR_COM_SENDFAIL, "WriteFile() fails");
goto SEND_FAIL;
}
#elif defined(RB_LINUX)
if ((numbytes = write(COM_info[com].fp, buf, bsize2)) < 0)
{
err_SetMsg(ERROR_COM_SENDFAIL, "write() fails");
goto SEND_FAIL;
}
#else
// TODO ...
err_SetMsg(ERROR_COM_INVALID, "unsupported platform");
goto SEND_FAIL;
#endif
if ((timer_nowtime() - nowtime) > COM_TIMEOUT)
{
err_SetMsg(ERROR_COM_SENDFAIL, "time-out to write bytes");
goto SEND_FAIL;
}
} // for (nowtime...
} // end while (bsize...
if (COM_duplex[com] == COM_HDUPLEX_RTS)
{
com_FlushWFIFO(com);
clear_rts(com);
MPOS_End();
}
return true;
SEND_FAIL:
if (COM_duplex[com] == COM_HDUPLEX_RTS)
{
clear_rts(com);
MPOS_End();
}
return false;
}
RBAPI(void) com_Close(int com) {
if(com_InUse(com) == false) return;
com_FlushWFIFO(com);
com_ClearRFIFO(com);
#if defined(RB_MSVC_WIN32) || defined(RB_MSVC_WINCE)
SetCommTimeouts(COM_info[com].fp, &COM_info[com].oldtimeouts);
SetCommState(COM_info[com].fp, &(COM_info[com].oldstate));
CloseHandle(COM_info[com].fp);
#elif defined(RB_LINUX)
tcsetattr(COM_info[com].fp, TCSANOW, &(COM_info[com].oldstate));
close(COM_info[com].fp);
#endif
if (COM_oldTMode[com] == true) com_EnableTurboMode(com); else com_DisableTurboMode(com);
if (COM_oldFMode[com] == true) com_EnableFIFO32(com); else com_DisableFIFO32(com);
io_Close(COM_ioSection[com]);
COM_ioSection[com] = -1;
}
