/*************************************************************************//**
?*****************************************************************************
?*?@file???disklog.c
?*?@brief??
?*?@author?Forrest?Y.?Yu
?*?@date???Thu?Nov?20?16:22:45?2008
?*****************************************************************************
?*****************************************************************************/

#include?“type.h“
#include?“config.h“
#include?“stdio.h“
#include?“const.h“
#include?“protect.h“
#include?“string.h“
#include?“fs.h“
#include?“proc.h“
#include?“tty.h“
#include?“console.h“
#include?“global.h“
#include?“keyboard.h“
#include?“proto.h“
#include?“hd.h“
#include?“fs.h“

#define?DISKLOG_RD_SECT（devsect_nr）?rw_sector（DEV_READ?\
					???????dev			\
					???????（sect_nr）?*?SECTOR_SIZE	\
					???????SECTOR_SIZE?/*?read?one?sector?*/?\
					???????getpid（）		\
					???????logdiskbuf）;
#define?DISKLOG_WR_SECT（devsect_nr）?rw_sector（DEV_WRITE?\
					???????dev			\
					???????（sect_nr）?*?SECTOR_SIZE	\
					???????SECTOR_SIZE?/*?write?one?sector?*/?\
					???????getpid（）		\
					???????logdiskbuf）;


/*?/\*****************************************************************************?*/
/*??*????????????????????????????????do_disklog?*/
/*??*****************************************************************************\/?*/
/*?/\**?*/
/*??*?Perform?syslog（）?system?call?.?*/
/*??*?*/
/*??*?@return??*/
/*??*****************************************************************************\/?*/
/*?PUBLIC?int?do_disklog（）?*/
/*?{?*/
/*?	char?buf[STR_DEFAULT_LEN];?*/

/*?	/\*?get?parameters?from?the?message?*\/?*/
/*?	int?str_len?=?fs_msg.CNT;	/\*?length?of?filename?*\/?*/
/*?	int?src?=?fs_msg.source;	/\*?caller?proc?nr.?*\/?*/
/*?	assert（str_len?/*?	phys_copy（（void*）va2la（TASK_FS?buf）????/\*?to???*\/?*/
/*?		??（void*）va2la（src?fs_msg.BUF）?/\*?from?*\/?*/
/*?		??str_len）;?*/
/*?	buf[str_len]?=?0;	/\*?terminate?the?string?*\/?*/

/*?	return?disklog（buf）;?*/
/*?}?*/

/*****************************************************************************
?*????????????????????????????????disklog
?*****************************************************************************/
/**
?*??Write?log?string?directly?into?disk.
?*?
?*?@param?p??Ptr?to?the?MESSAGE.
?*****************************************************************************/
PUBLIC?int?disklog（char?*?logstr）
{
	int?device?=?root_inode->i_dev;
	struct?super_block?*?sb?=?get_super_block（device）;
	int?nr_log_blk0_nr?=?sb->nr_sects?-?NR_SECTS_FOR_LOG;?/*?0x9D41-0x800=0x9541?*/

	static?int?pos?=?0;
	if?（!pos）?{?/*?first?time?invoking?this?routine?*/

#ifdef?SET_LOG_SECT_SMAP_AT_STARTUP
		/*
		?*?set?sector-map?so?that?other?files?cannot?use?the?log?sectors
		?*/

		int?bits_per_sect?=?SECTOR_SIZE?*?8;?/*?4096?*/

		int?smap_blk0_nr?=?1?+?1?+?sb->nr_imap_sects;?/*?3?*/
		int?sect_nr??=?smap_blk0_nr?+?nr_log_blk0_nr?/?bits_per_sect;?/*?3+9=12?*/
		int?byte_off?=?（nr_log

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????1474560??2009-03-30?16:16??于淵操作系統光盤\chapter1\a\a.img

?????文件????????661??2009-03-30?16:16??于淵操作系統光盤\chapter1\a\bochsrc

?????文件????????563??2009-03-30?16:16??于淵操作系統光盤\chapter1\a\boot.asm

?????文件????1474560??2009-03-30?16:16??于淵操作系統光盤\chapter1\b\a.img

?????文件????????661??2009-03-30?16:16??于淵操作系統光盤\chapter1\b\bochsrc

?????文件????????821??2009-03-30?16:16??于淵操作系統光盤\chapter1\b\boot.asm

?????文件??????81567??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\80m.img.gz

?????文件????1474560??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\a.img

?????文件???????1000??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\bochsrc

?????文件??????10018??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\boot\boot.asm

?????文件???????2222??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\boot\include\fat12hdr.inc

?????文件???????1552??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\boot\include\load.inc

?????文件??????13873??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\boot\include\pm.inc

?????文件??????29754??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\boot\loader.asm

?????文件??????25149??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\disklog.c

?????文件???????6075??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\link.c

?????文件??????16086??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\main.c

?????文件???????3923??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\misc.c

?????文件??????11610??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\open.c

?????文件???????3777??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\fs\read_write.c

?????文件???????2897??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\stdio.h

?????文件????????979??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\string.h

?????文件????????931??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\config.h

?????文件????????913??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\console.h

?????文件???????8289??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\const.h

?????文件???????4370??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\fs.h

?????文件???????1725??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\global.h

?????文件??????11657??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\hd.h

?????文件???????5124??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\keyboard.h

?????文件???????7831??2009-03-30?16:17??于淵操作系統光盤\chapter10\a\include\sys\keymap.h

............此處省略2748個文件信息