io/name.c - Win32 IO layer


This is the Parrot OS-speciic IO layer for Win32 platforms.

References ^

Win32 System Programming, 2nd Edition.

Functions ^

static INTVAL flags_to_win32(INTVAL flags, DWORD *fdwAccess, DWORD *fdwShareMode, DWORD *fdwCreate)

Convert to platform-specific bit open flags.

static INTVAL PIO_win32_init(theINTERP, ParrotIOLayer *layer)

Sets up the standard std* IO handles.

INTVAL PIO_win32_getblksize(PIOHANDLE fd)


static ParrotIO *PIO_win32_open(theINTERP, ParrotIOLayer *layer, const char *spath, INTVAL flags)

Calls CreateFile() to open *spath with the Win32 translation of flags.

static ParrotIO *PIO_win32_fdopen(theINTERP, ParrotIOLayer *layer, PIOHANDLE fd, INTVAL flags)

Returns a new ParrotIO with fd as its file descriptor.

static INTVAL PIO_win32_close(theINTERP, ParrotIOLayer *layer, ParrotIO *io)

Calls CloseHandle() to close *io's file descriptor.

INTVAL PIO_win32_isatty(PIOHANDLE fd)

Returns whether fd is a console/tty.

static INTVAL PIO_win32_flush(theINTERP, ParrotIOLayer *layer, ParrotIO *io)

Calls FlushFileBuffers() to flush *io's file descriptor.

static size_t PIO_win32_read(theINTERP, ParrotIOLayer *layer, ParrotIO *io, STRING ** buf)

Calls ReadFile() to read up to len bytes from *io's file descriptor to the memory starting at buffer.

static size_t PIO_win32_write(theINTERP, ParrotIOLayer *layer, ParrotIO *io, STRING *)

Calls WriteFile() to write len bytes from the memory starting at buffer to *io's file descriptor.

static PIOOFF_T PIO_win32_seek(theINTERP, ParrotIOLayer *l, ParrotIO *io, PIOOFF_T off, INTVAL whence)

Hard seek.

Calls SetFilePointer() to move the read/write position of *io's file descriptor to off bytes relative to the location specified by whence.

static PIOOFF_T PIO_win32_tell(theINTERP, ParrotIOLayer *l, ParrotIO *io)

Returns the current read/write position of *io's file descriptor.

STRING *PIO_sockaddr_in(theINTERP, unsigned short port, STRING *addr)

PIO_sockaddr_in() is not part of the layer and so must be extern.

XXX: We can probably just write our own routines (htons(), inet_aton(), etc.) and take this out of platform specific compilation

static ParrotIO *PIO_win32_socket(theINTERP, ParrotIOLayer *layer, int fam, int type, int proto)

Uses socket() to create a socket with the specified address family, socket type and protocol number.

static INTVAL PIO_win32_connect(theINTERP, ParrotIOLayer *layer, ParrotIO *io, STRING *r)

Connects *io's socket to address *r.

static INTVAL PIO_win32_send(theINTERP, ParrotIOLayer *layer, ParrotIO *io, STRING *s)

Send the message *s to *io's connected socket.

static INTVAL PIO_win32_recv(theINTERP, ParrotIOLayer *layer, ParrotIO *io, STRING **s)

Receives a message in **s from *io's connected socket.


io/io_buf.c, io/io_passdown.c, io/io_stdio.c, io/io_unix.c, io/io.c, io/io_private.h.


Initially written by Melvin Smith.