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This page lists all documentation wiki pages for Google Mock **version 1.5.0** -- **if you use a different version of Google Mock, please read the documentation for that specific version instead.**

  * [ForDummies](V1_5_ForDummies.md) -- start here if you are new to Google Mock.
  * [CheatSheet](V1_5_CheatSheet.md) -- a quick reference.
  * [CookBook](V1_5_CookBook.md) -- recipes for doing various tasks using Google Mock.
  * [FrequentlyAskedQuestions](V1_5_FrequentlyAskedQuestions.md) -- check here before asking a question on the mailing list.

To contribute code to Google Mock, read:

  * DevGuide -- read this _before_ writing your first patch.
  * [Pump Manual](http://code.google.com/p/googletest/wiki/PumpManual) -- how we generate some of Google Mock's source files.
Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/* 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation; or, when distributed
 * separately from the Linux kernel or incorporated into other
 * software packages, subject to the following license:
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this source file (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef __BLKIF__BACKEND__COMMON_H__
#define __BLKIF__BACKEND__COMMON_H__

#include <linux/config.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/vmalloc.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/pgalloc.h>
#include <xen/evtchn.h>
#include <asm/hypervisor.h>
#include <xen/interface/io/blkif.h>
#include <xen/interface/io/ring.h>
#include <xen/gnttab.h>
#include <xen/driver_util.h>

#define DPRINTK(_f, _a...) pr_debug("(file=%s, line=%d) " _f, \
                                    __FILE__ , __LINE__ , ## _a )

#define WPRINTK(fmt, args...) printk(KERN_WARNING "blk_tap: " fmt, ##args)

struct backend_info;

typedef struct blkif_st {
	/* Unique identifier for this interface. */
	domid_t           domid;
	unsigned int      handle;
	/* Physical parameters of the comms window. */
	unsigned int      evtchn;
	unsigned int      irq;
	/* Comms information. */
	blkif_back_ring_t blk_ring;
	struct vm_struct *blk_ring_area;
	/* Back pointer to the backend_info. */
	struct backend_info *be;
	/* Private fields. */
	spinlock_t       blk_ring_lock;
	atomic_t         refcnt;

	wait_queue_head_t   wq;
	struct task_struct  *xenblkd;
	unsigned int        waiting_reqs;
	request_queue_t     *plug;

	/* statistics */
	unsigned long       st_print;
	int                 st_rd_req;
	int                 st_wr_req;
	int                 st_oo_req;

	wait_queue_head_t waiting_to_free;

	grant_handle_t shmem_handle;
	grant_ref_t    shmem_ref;
	
	int		dev_num;
	uint64_t        sectors;
} blkif_t;

blkif_t *tap_alloc_blkif(domid_t domid);
void tap_blkif_free(blkif_t *blkif);
int tap_blkif_map(blkif_t *blkif, unsigned long shared_page, 
		  unsigned int evtchn);
void tap_blkif_unmap(blkif_t *blkif);

#define blkif_get(_b) (atomic_inc(&(_b)->refcnt))
#define blkif_put(_b)					\
	do {						\
		if (atomic_dec_and_test(&(_b)->refcnt))	\
			wake_up(&(_b)->waiting_to_free);\
	} while (0)


struct phys_req {
	unsigned short       dev;
	unsigned short       nr_sects;
	struct block_device *bdev;
	blkif_sector_t       sector_number;
};

void tap_blkif_interface_init(void);

void tap_blkif_xenbus_init(void);

irqreturn_t tap_blkif_be_int(int irq, void *dev_id, struct pt_regs *regs);
int tap_blkif_schedule(void *arg);

int dom_to_devid(domid_t domid, int xenbus_id, blkif_t *blkif);
void signal_tapdisk(int idx);

#endif /* __BLKIF__BACKEND__COMMON_H__ */