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    • 15. 发明授权
    • Fast conditional thunk utility
    • 快速条件thunk实用程序
    • US06553429B1
    • 2003-04-22
    • US09092257
    • 1998-06-05
    • Brian D. WentzJames Edward Walsh
    • Brian D. WentzJames Edward Walsh
    • G06F946
    • G06F9/4486
    • A conditional thunk utility employing an assembler-level direct-branch thunk technique. In a condition-check alternative, the conditional thunk utility performs a condition check followed by a direct-branch jump. The condition-check methodology is implemented using an assembler-level direct-branch technique, and the conditional thunk utility does not utilize the stack to queue the arguments of a function call. Thus, the stack is not altered from its desired condition just prior to executing the API function call. The condition-check alternative checks the thunk condition for each function call and, for this reason, may be used when the thunk condition can vary relatively frequently while the host computer system is running. In a jump-table alternative, the conditional thunk utility performs an assembler-level jump table check followed by a direct jump to a target address. In the jump-table alternative, the assembler-level direct branch code is configured to retrieve the jump address for the conditional thunk decision from the instruction cache memory (I-cache). Because the thunk conditions are checked and the jump table is configured in advance, the jump-table embodiment does not require a thunk condition check before each jump. For this reason, the jump-table alternative may be used for thunk conditions are invariant, or vary relatively infrequently, while the host computer system is running.
    • 一种使用汇编级直接支路技术的条件thunk实用程序。 在条件检查替代方案中,条件thunk实用程序执行条件检查,然后进行直接分支跳转。 条件检查方法是使用汇编级直接分支技术实现的,条件thunk实用程序不使用堆栈对函数调用的参数进行排队。 因此,在执行API函数调用之前,堆栈不会从其所需的状态改变。 条件检查替代方法检查每个函数调用的thunk条件,并且因此,当主计算机系统运行时,thunk条件可能相对频繁地变化时可以使用。 在跳转表中,条件thunk实用程序执行汇编级跳转表检查,然后直接跳转到目标地址。 在跳转表替代中,组装级直接分支代码被配置为从指令高速缓冲存储器(I-cache)中检索条件thunk判定的跳转地址。 由于检查了thunk条件并且预先配置了跳转表,因此跳转表实施例在每次跳转之前不需要thunk状态检查。 因此,当主计算机系统运行时,跳转表替代方案可用于不稳定的thunk条件,或者相对较少变化。
    • 20. 发明授权
    • Method and system for user defined and linked properties
    • 用户定义和链接属性的方法和系统
    • US6122649A
    • 2000-09-19
    • US656427
    • 1996-05-30
    • Heikki J. KanervaMartin ThorsenBrian D. Wentz
    • Heikki J. KanervaMartin ThorsenBrian D. Wentz
    • G06F17/21G06F17/24
    • G06F17/241G06F17/21
    • A computer system for creating a user-defined property for a document and for linking properties to content of the document. When the document is open, a first application receives from a user a name, a type, and a value of property to be created, creates a property within the properties area of the document by storing the name and type of the property within the properties area, and stores the value within the properties area. When the document is closed, a second application retrieves the name, type, and value of the created property from the properties area, and displays the name and the value of the created property. To link the property to the content, the first application receives from a user an indication that the property is to be linked to a field within the content of the document, retrieves the value of the field from within the content of the document, and stores the retrieved value and type as the value of the property. The second application then changes the stored value of the property when the document is closed. The first application detects that the stored value of the property is different from the value of the field within the content the document, and sets the value of the field within the content of the document to the value of the property.
    • 一种用于为文档创建用户定义属性并将属性链接到文档内容的计算机系统。 当文档打开时,第一个应用程序从用户接收要创建的属性的名称,类型和值,通过在属性的属性中存储属性的名称和类型在文档的属性区域中创建属性 区域,并将该值存储在属性区域内。 当文档关闭时,第二个应用程序从属性区域检索已创建属性的名称,类型和值,并显示已创建属性的名称和值。 为了将该属性链接到该内容,第一应用从用户接收该属性将被链接到文档内容中的字段的指示,从该文档的内容中检索该字段的值,并存储 检索的值和类型作为属性的值。 然后,第二个应用程序在关闭文档时更改属性的存储值。 第一个应用程序检测到该属性的存储值与该文档内容中的该字段的值不同,并将该文档内容中的该字段的值设置为该属性的值。