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

PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL ParrotIO *PIO_open_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), ARGIN(const char *name), INTVAL flags): Looks for the implementation of Open and calls it if found, returning its return value.; Returns NULL if no implementation is found.
PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL ParrotIO *PIO_open_async_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), ARGIN(const char *name), ARGIN(const char *mode), NOTNULL(DummyCodeRef *dummy)): Looks for the implementation of Open_ASync and calls it if found, returning its return value.; Returns NULL if no implementation is found.
PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL ParrotIO *PIO_fdopen_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), PIOHANDLE fd, INTVAL flags): Looks for the implementation of FDOpen and calls it if found, returning its return value.; Returns NULL if no implementation is found.
PARROT_WARN_UNUSED_RESULT size_t PIO_peek_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING **buf)): RT#48260: Not yet documented!!!
PARROT_WARN_UNUSED_RESULT INTVAL PIO_close_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of Close and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT size_t PIO_write_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING *s)): Looks for the implementation of Write and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT size_t PIO_write_async_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING *s), NOTNULL(DummyCodeRef *dummy)): Looks for the implementation of WriteASync and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT size_t PIO_read_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING **buf)): Looks for the implementation of Read and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT size_t PIO_read_async_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING **buf), NOTNULL(DummyCodeRef *dummy)): Looks for the implementation of Read_ASync and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_flush_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of Flush and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT PIOOFF_T PIO_seek_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), PIOOFF_T offset, INTVAL whence): Looks for the implementation of Seek and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT PIOOFF_T PIO_tell_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of Tell and calls it if found, returning its return value.; Returns 0 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_setbuf_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), size_t bufsize): Looks for the implementation of SetBuf and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_setlinebuf_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of SetLineBuf and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_eof_down(PARROT_INTERP, NULLOK(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of Eof and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_poll_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), INTVAL which, INTVAL sec, INTVAL usec): Looks for the implementation of Poll and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL ParrotIO *PIO_socket_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), INTVAL fam, INTVAL type, INTVAL proto): Looks for the implementation of Socket and calls it if found, returning its return value.; Returns NULL if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_recv_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING **buf)): Looks for the implementation of Recv and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_send_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING *buf)): Looks for the implementation of Send and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_connect_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING *address)): Looks for the implementation of Connect and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_bind_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), NOTNULL(STRING *address)): Looks for the implementation of Bind and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT INTVAL PIO_listen_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io), INTVAL backlog): Looks for the implementation of listen and calls it if found, returning its return value.; Returns -1 if no implementation is found.
PARROT_WARN_UNUSED_RESULT PARROT_CAN_RETURN_NULL ParrotIO *PIO_accept_down(PARROT_INTERP, NOTNULL(ParrotIOLayer *layer), NOTNULL(ParrotIO *io)): Looks for the implementation of Accept and calls it if found, returning its return value.; Returns -1 if no implementation is found.

HISTORY

Initially written by Juergen Boemmels

Some ideas and goals from Perl5.7 and Nick Ing-Simmons' work.

parrotcode: IO layer handling
Contents \| C

NAME

DESCRIPTION

Functions

SEE ALSO

HISTORY