摘要:
A communications framework operable to support remote method invocation in a distributed object environment. The communications framework supporting a base class having an interface definition for a virtual query_op method, the interface definition specifying that the query_op method accepts a reference to a specifier for an operation to be performed, and that the query_op method returns a reference to a dispatch function to be invoked to perform the operation provided as an argument to an invocation of the query_op method, wherein the dispatch function accepts as arguments a reference to a target object on which to perform the operation and a reference to an object containing a list of values passed to and returned from the operation. A target object derives from the base class and provides an implementation for the query_op method. Other systems and methods are disclosed.
摘要:
A messaging system that reduces communications bandwidth is disclosed. Difference messages are constructed at a sender from a message and prior state information. The difference messages include information describing the difference between the content of the message and a portion of prior state information, such as a prior message. The difference messages, including a prior message identifier, are sent to the receiver in place of the message. The message is reconstructed at the receiver using the corresponding difference message and the prior state information stored at the receiver. If the message reconstruction is unsuccessful, the sender is notified, and further required information is sent to the receiver.
摘要:
A communication framework supporting multiple communications protocols. The communications framework having a remote procedure call class providing an interface for an apply method, the apply method referencing a remote object, an operation to be performed, and an argument list. The communications framework also having at least one remote procedure call transport deriving from the remote procedure call class, each remote procedure call transport providing an implementation for the apply method whose interface is provided by the remote procedure call class. Other systems and methods are disclosed.
摘要:
In a method of operating a computer system having a plurality of processes, creating a plurality of object references, each object reference corresponding to a target object. The processes optionally executing on a plurality of computers connected by a network. For each object reference, creating a table of binding information hints. The table is indexed by a particular transport protocol and each entry in the table of binding information hints includes information to be used to attempt to establish a connection from the process to the target object using the indexing transport protocol. Merging the tables of binding information hints upon receiving an object reference. Other systems and methods are disclosed.
摘要:
An exemplary method for configuring a device to enable it to become a member of an established network comprises reading, using a portable device, a first token of a networked device, obtaining configuration data based on the first token, reading a second token of a non-networked device, establishing a communication session with the non-networked device based on the second token, and providing the configuration data to the non-networked device to enable it to become a member of the same network as the networked device.
摘要:
An accessory device is directly connected in a non-networked manner to an electronic device. The accessory device is to be used by a web application running on a computing device connected to the electronic device over a network. The accessory device has a shared context or an owned context. The shared context specifies that usage of the accessory device is shared among the web application and one or more other web applications. The owned context specifies that the usage of the accessory device is exclusive to the web application and not to any other web application.
摘要:
Communications methods and appliances are described. According to one embodiment, a communications method includes prior to deployment of an appliance, establishing a trusted association between the appliance and a certificate authority, during deployment of the appliance, associating the appliance with a communications address of a communications medium, using the certificate authority, creating a signed certificate including the communications address of the appliance, announcing the signed certificate using the appliance, after the announcing, extracting the communications address of the appliance from the signed certificate, and after the extracting, verifying the communications address of the appliance.
摘要:
A job store for a pull-based presentation output system includes a job storage storing one or more jobs from a plurality of job submission clients; and a driver storage storing one or more drivers for converting a job into a format used by a corresponding presentation output device. The job store receives a job from a job submission client, stores the job in the job storage, receives a pull command from a presentation output device when the presentation output device is one of idle and nearly finished with a current job and without receiving further input from a user of the job submission client, retrieves the job from the job storage, applies a driver for converting that job into a format used by the presentation output device sending the pull command and outputs the job to the presentation output device sending the pull command.
摘要:
An exemplary method for configuring a device to enable it to become a member of an established network comprises reading, using a portable device, a first token of a networked device, obtaining configuration data based on the first token, reading a second token of a non-networked device, establishing a communication session with the non-networked device based on the second token, and providing the configuration data to the non-networked device to enable it to become a member of the same network as the networked device.
摘要:
The invention provides a method for a sender to send a message on a tangible medium and ensure that it is privacy protected until verification that the medium has been received by the authorized recipient. The invention provides a method in which a sender creates an encrypted content message that may be decrypted using a content decryption key that is unknown to the authorized recipient. The sender creates an encrypted authentication message that may be decrypted using a recipient's key that is known to the authorized recipient but is unknown to others, except perhaps to the sender. The sender fixes the encrypted content message and the encrypted authentication message onto a tangible medium and then permits the authorized recipient to obtain the tangible medium. The authorized recipient uses the recipient's key to decrypt the encrypted authentication message and then creates a valid reply that is based upon or which uses the decrypted authentication message. The authorized recipient sends the valid reply to the sender and upon verification that the reply is valid the sender allows the authorized recipient to obtain the content decryption key. With the content decryption key, the authorized recipient is able to decrypt the encrypted content message. The invention also includes an article of manufacture for sending an encrypted message from a sender to an authorized recipient using a method, of the invention.