PROCESS_FD        496 src/process.c    fd_callback_info[fd].flags |= PROCESS_FD;
PROCESS_FD        619 src/process.c  	  && (fd_callback_info[fd].flags & PROCESS_FD) == 0)
PROCESS_FD       5866 src/process.c  	      && ((fd_callback_info[channel].flags & (KEYBOARD_FD | PROCESS_FD))
PROCESS_FD       5867 src/process.c  		  == PROCESS_FD))
PROCESS_FD       8083 src/process.c    fd_callback_info[desc].flags &= ~PROCESS_FD;
PROCESS_FD       8098 src/process.c    fd_callback_info[desc].flags &= ~(FOR_READ | KEYBOARD_FD | PROCESS_FD);