摘要:
A system for allocating resources for use by devices of a computer system. A possible configuration of elements of a resource is obtained. This possible configuration defines the resource elements that are appropriate for operating the devices within the computer system. For a selected device, a determination is made whether a particular resource element is available for use by this device. If not, another possible configuration is obtained and the process begins anew. In contrast, if the particular resource element is available, then this resource element is assigned for use by the selected device. This resource allocation process continues until resource elements have been assigned to the remaining devices.
摘要:
The role of a system in a network may be categorized as a networking system, a security system, a systems management system, a mail system, a database system, a web system, a file/print system, a communication and collaboration system, and/or any other system in the network. The role of a target system may be determined by sending test probes to one or more systems in a target network. The test probes may be data packets crafted to produce a particular response from a target system. The received responses may be compared to signature responses of a basis system with known operating system, services, and/or roles. By matching the received responses with signature responses, a role resolver may associate a role with the target system.
摘要:
The role of a system in a network may be categorized as a networking system, a security system, a systems management system, a mail system, a database system, a web system, a file/print system, a communication and collaboration system, and/or any other system in the network. The role of a target system may be determined by sending test probes to one or more systems in a target network. The test probes may be data packets crafted to produce a particular response from a target system. The received responses may be compared to signature responses of a basis system with known operating system, services, and/or roles. By matching the received responses with signature responses, a role resolver may associate a role with the target system.
摘要:
The present invention is directed to tracking and managing failure-susceptible operations in a computer system. In a preferred embodiment, the performance of failure-susceptible operations is monitored, such that, when execution of the operating system is interrupted then restarted, it can be determined which failure-susceptible operation was in progress at the point at which execution of the operating system was interrupted. In one embodiment, this monitoring is performed using a stack data structure. When a failure-susceptible operation is invoked, an entry is pushed on the stack identifying the invoked failure-susceptible operation. On the other hand, when a failure-susceptible operation is completed, the entry identifying the completed failure-susceptible operation is popped off the stack. The failure-susceptible operation that was in progress at the point at which execution was last interrupted is then determined to be the failure-susceptible operation identified by the top entry on the stack when execution resumes. In a further preferred embodiment, subsequent attempted invocation of the operation determined to be in progress when execution was interrupted is inhibited.
摘要:
The operating system of a computer maintains an extension catalog that stores data relating extensions with information about the contracts the extensions support. Extensions are registered in this catalog according to the contract they implement. The extension catalog can be queried to identify extensions that support a given contract. An extension can be selected from among the results from a query, and the selected extension can be activated. When activated, the extension is set up by the operating system as an independent process from, and with context from, the application for which it is an extension. Information about the extension is provided to the application to enable the extension and the application to communicate according to the supported contract.
摘要:
A method and system are disclosed for invoking a limited or "fail-safe" functionality from a computer system having a graphical user interface (GUI). In one aspect, a computer operating system having GUI functionality can be activated with two different sets of GUI features. Normally, the operating system provides a full complement of GUI features. Alternatively, the operating system provides a more limited set of GUI features. The operating system invokes the limited set of GUI features either in response to a user command, such as a keyboard function key pressed during the bootstrap loading sequence of the operating system, or automatically in response to a failure of an attempt by the computer system to load the normal complement of GUI functions. With the limited set of GUI features, the user of the computer can take advantage of the power of graphical user interfaces even when the computer system is not operating normally. For example, the user can run graphically based diagnostic and repair programs from the "fail-safe" mode. The invention finds application in stand-alone and networked computer systems and, in particular, in systems that store the bulk of the operating system software on a remote server accessible only by network.
摘要:
The operating system of a computer maintains an extension catalog that stores data relating extensions with information about the contracts the extensions support. Extensions are registered in this catalog according to the contract they implement. The extension catalog can be queried to identify extensions that support a given contract. An extension can be selected from among the results from a query, and the selected extension can be activated. When activated, the extension is set up by the operating system as an independent process from, and with context from, the application for which it is an extension. Information about the extension is provided to the application to enable the extension and the application to communicate according to the supported contract.
摘要:
Preventing uncontrolled access to an execution environment of a first component object by a second component object. A system includes a memory area storing the first component object, the second component object, and one or more predefined properties associated with the second component object. The system comprises a processor configured to receive a request from the first component object stored in the memory area to create the second component object stored in the memory area. The first component object executes in a first execution environment and the request specifies a requested execution environment for the second component object. The processor is also configured for analyzing the predefined properties stored in the memory area to determine an execution environment privilege associated with the second component object. The processor is configured for granting the received request as a function of the determined execution environment privilege.
摘要:
A duplicate memory image of the pages that need to be saved (i.e. hibernated) is created within volatile memory. The pages to be hibernated include all pages whose state is locked and a portion, if not all, of the pages whose state is idle. If the duplicate memory image of the pages to be hibernated cannot, however, be created due to a lack of volatile memory, a portion of the idle pages is pushed out to the swap file on secondary storage to free more volatile memory for this duplication. This duplicate memory image of the pages to be hibernated along with a corresponding page table identifying their location within volatile memory are then written out to a file on the secondary storage, completing hibernation and allowing the computer system to shut down in a hibernate mode.
摘要:
The present invention is directed to tracking and managing failure-susceptible operations in a computer system. In a preferred embodiment, the performance of failure-susceptible operations is monitored such that, when execution of the operating system is interrupted and then restarted, it can be determined which failure-susceptible operation was in progress at the point at which execution of the operating system was interrupted. A list is made of the operations that failed to execute to completion and subsequent invocation of operations on the list is inhibited. A user may review the list and select operations, allowing the selected operations to be subsequently invoked.