PROCESS_FD        501 src/process.c    fd_callback_info[fd].flags |= PROCESS_FD;
PROCESS_FD        624 src/process.c  	  && (fd_callback_info[fd].flags & PROCESS_FD) == 0)
PROCESS_FD       5883 src/process.c  	      && ((fd_callback_info[channel].flags & (KEYBOARD_FD | PROCESS_FD))
PROCESS_FD       5884 src/process.c  		  == PROCESS_FD))
PROCESS_FD       8111 src/process.c    fd_callback_info[desc].flags &= ~PROCESS_FD;
PROCESS_FD       8126 src/process.c    fd_callback_info[desc].flags &= ~(FOR_READ | KEYBOARD_FD | PROCESS_FD);