hw.c File Reference

"Hello World" data source More...

#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <gpxe/refcnt.h>
#include <gpxe/process.h>
#include <gpxe/xfer.h>
#include <gpxe/open.h>

Go to the source code of this file.

Data Structures
struct	hw
Functions
static void	hw_finished (struct hw *hw, int rc)
static void	hw_xfer_close (struct xfer_interface *xfer, int rc)
static void	hw_step (struct process *process)
static int	hw_open (struct xfer_interface *xfer, struct uri *uri __unused)
Variables
static const char	hw_msg [] = "Hello world!\n"
static struct xfer_interface_operations	hw_xfer_operations
struct uri_opener hw_uri_opener	__uri_opener

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Detailed Description

"Hello World" data source

Definition in file hw.c.

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Function Documentation

static void hw_finished	(	struct hw *	hw,
		int	rc
	)			[static]

Definition at line 24 of file hw.c.

References hw::process, process_del(), hw::xfer, and xfer_close().

Referenced by hw_step(), and hw_xfer_close().

                                                  {
        xfer_nullify ( &hw->xfer );
        xfer_close ( &hw->xfer, rc );
        process_del ( &hw->process );
}

static void hw_xfer_close	(	struct xfer_interface *	xfer,
		int	rc
	)			[static]

Definition at line 30 of file hw.c.

References container_of, and hw_finished().

                                                                  {
        struct hw *hw = container_of ( xfer, struct hw, xfer );

        hw_finished ( hw, rc );
}

static void hw_step

(

struct process *

process

)

[static]

Definition at line 45 of file hw.c.

References container_of, hw_finished(), hw_msg, hw::xfer, xfer_deliver_raw(), and xfer_window().

Referenced by hw_open().

                                                {
        struct hw *hw = container_of ( process, struct hw, process );
        int rc;

        if ( xfer_window ( &hw->xfer ) ) {
                rc = xfer_deliver_raw ( &hw->xfer, hw_msg, sizeof ( hw_msg ) );
                hw_finished ( hw, rc );
        }
}

static int hw_open	(	struct xfer_interface *	xfer,
		struct uri *uri	__unused
	)			[static]

Definition at line 55 of file hw.c.

References ENOMEM, hw_step(), hw::process, process_init(), ref_put(), hw::refcnt, hw::xfer, xfer_init(), and zalloc().

                                                                             {
        struct hw *hw;

        /* Allocate and initialise structure */
        hw = zalloc ( sizeof ( *hw ) );
        if ( ! hw )
                return -ENOMEM;
        xfer_init ( &hw->xfer, &hw_xfer_operations, &hw->refcnt );
        process_init ( &hw->process, hw_step, &hw->refcnt );

        /* Attach parent interface, mortalise self, and return */
        xfer_plug_plug ( &hw->xfer, xfer );
        ref_put ( &hw->refcnt );
        return 0;
}

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Variable Documentation

const char hw_msg[] = "Hello world!\n" [static]

Definition at line 22 of file hw.c.

Referenced by hw_step().

struct xfer_interface_operations hw_xfer_operations [static]

Initial value:

 {
        .close          = hw_xfer_close,
        .vredirect      = ignore_xfer_vredirect,
        .window         = unlimited_xfer_window,
        .alloc_iob      = default_xfer_alloc_iob,
        .deliver_iob    = xfer_deliver_as_raw,
        .deliver_raw    = ignore_xfer_deliver_raw,
}

Definition at line 36 of file hw.c.

struct uri_opener hw_uri_opener __uri_opener

Initial value:

 {
        .scheme = "hw",
        .open = hw_open,
}

Definition at line 71 of file hw.c.