NAME 
src/io/io_passdown.c - IO layer handling
DESCRIPTION
This is a set of helper functions which search for the first implementation of a function in the layer-stack, call it with the appropriate arguments and return the value returned.
Functions
ParrotIO *PIO_open_down- Looks for the implementation of
Openand calls it if found, returning its return value. - Returns
NULLif no implementation is found. ParrotIO *PIO_open_async_down- Looks for the implementation of
Open_ASyncand calls it if found, returning its return value. - Returns
NULLif no implementation is found. ParrotIO *PIO_fdopen_down- Looks for the implementation of
FDOpenand calls it if found, returning its return value. - Returns
NULLif no implementation is found. size_t PIO_peek_down- RT#48260: Not yet documented!!!
INTVAL PIO_close_down- Looks for the implementation of
Closeand calls it if found, returning its return value. - Returns
-1if no implementation is found. size_t PIO_write_down- Looks for the implementation of
Writeand calls it if found, returning its return value. - Returns
0if no implementation is found. size_t PIO_write_async_down- Looks for the implementation of
WriteASyncand calls it if found, returning its return value. - Returns
0if no implementation is found. size_t PIO_read_down- Looks for the implementation of
Readand calls it if found, returning its return value. - Returns
0if no implementation is found. size_t PIO_read_async_down- Looks for the implementation of
Read_ASyncand calls it if found, returning its return value. - Returns
0if no implementation is found. INTVAL PIO_flush_down- Looks for the implementation of
Flushand calls it if found, returning its return value. - Returns
0if no implementation is found. PIOOFF_T PIO_seek_down- Looks for the implementation of
Seekand calls it if found, returning its return value. - Returns
-1if no implementation is found. PIOOFF_T PIO_tell_down- Looks for the implementation of
Telland calls it if found, returning its return value. - Returns
0if no implementation is found. INTVAL PIO_setbuf_down- Looks for the implementation of
SetBufand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_setlinebuf_down- Looks for the implementation of
SetLineBufand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_eof_down- Looks for the implementation of
Eofand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_poll_down- Looks for the implementation of
Polland calls it if found, returning its return value. - Returns
-1if no implementation is found. ParrotIO *PIO_socket_down- Looks for the implementation of
Socketand calls it if found, returning its return value. - Returns
NULLif no implementation is found. INTVAL PIO_recv_down- Looks for the implementation of
Recvand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_send_down- Looks for the implementation of
Sendand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_connect_down- Looks for the implementation of
Connectand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_bind_down- Looks for the implementation of
Bindand calls it if found, returning its return value. - Returns
-1if no implementation is found. INTVAL PIO_listen_down- Looks for the implementation of
listenand calls it if found, returning its return value. - Returns
-1if no implementation is found. ParrotIO *PIO_accept_down- Looks for the implementation of
Acceptand calls it if found, returning its return value. - Returns
-1if no implementation is found.
SEE ALSO
src/io/io_buf.c, src/io/io_passdown.c, src/io/io_stdio.c, src/io/io_unix.c, src/io/io_win32.c, src/io/io.c, src/io/io_private.h.
HISTORY
Initially written by Juergen Boemmels
Some ideas and goals from Perl5.7 and Nick Ing-Simmons' work.
