1698 results about "Breakpoint" patented technology

Method and apparatus for dynamic instrumentation of an executable application program. The application program includes a plurality of functions, each function having an entry point and an endpoint. When the application is executed, a shared memory segment is created for an instrumentation program and the application program. Upon initial invocation of the original functions in the application program, corresponding substitute functions are created in the shared memory segment, the substitute versions including instrumentation code. Thereafter, the substitute functions are executed in lieu of the original functions in the application program.

A method and apparatus for debugging of OS kernel and applications software that does not require use of a hardware probe; can debug both user-mode programs and a significant body of the OS kernel code; allows the OS to continue servicing exceptions while debugging; leverages OS built-in device drivers for communicating devices to communicate with the host debugger; and can debug a production version of the OS kernel. When debugging is required, the running OS kernel dynamically loads a software-based debug agent on demand whereby such debug agent dynamically modifies the running production OS kernel code and data to intercept debugging traps and provide run-control. To provide debugging of loadable module, the debug agent implement techniques to intercept the OS module loading system call; set breakpoints in the loaded module initialization function; calculate the start address of the debugged module in memory; and asynchronously put the system under debug. By structuring command loop to execute in non-exception mode, and devising a process to transfer execution from the debug agent exception handler to the debug agent command loop and back, the debug agent can communicate with the host debugger using interrupt-driven input/output devices as well as allowing the system to service interrupts while under debug.

Disclosed is a system for debugging a computer program. A user indicates a specified breakpoint type, such as a program statement, variable reference, command, etc. The program, including program statements, is then compiled. During compilation, the compiler locates statements in the program corresponding to the breakpoint types and generates a function call into the program at instances in the program of statements corresponding to the user specified breakpoint types. During a debugging phase, a debugger may execute an executable version of the program, including the function calls. Upon processing the function calls, the debugger may stop execution of the program and pass control to the user to perform debugging operations.

A debugging support apparatus for a processor that executes a plurality of instructions in parallel displays lines of source code statements in a user program that are executed in parallel. Code execution unit 15 executes the program. When execution of the program is interrupted at a breakpoint set in advance at a line of a source code statement, user interface unit 11 searches parallel execution information storage unit 5 for lines to be executed in parallel with the line set the breakpoint, and displays a source code statement of the line set the breakpoint and source code statements of the lines to be executed in parallel. As a result, a user is able to visually recognize which lines of source code statements are executed in parallel.

Methods and systems are provided for facilitating remote debugging from a local computer with a graphical user interface for debugging application in a computer system comprising an application system and one or more clients. The server receives a request from the local computer to monitor an application invoked by a client and running on the application system. Breakpoint information may be set via a breakpoint user interface initiated at the local computer by the server. Breakpoint information will be sent to one or more computer of the server system. The graphical user interface is provided to the local computer via a debugger interface initiated at the local computer by the server.

The method discloses a fuzzy matching-based Chinese geo-code determination method, which comprises the following steps: A1, reading descriptive Chinese address information in and adopting a forward maximum searching method to split an original address to obtain an original address element array in a way that the levels of administrative regions are taken as breakpoints; A2, standardizing original address elements through an address dictionary; and A3, reading a standard address tree, adopting a branch-bound algorithm to match the original address element array, simultaneously, utilizing fuzzy rules to control the matching operation, and after acquiring keywords after the original address is split, taking a matching result with the highest evaluation score as the most approximate matching result to obtain a more accurate matched address. The invention provides the fuzzy matching-based Chinese geo-code determination method, which has the advantages of rational address model, relatively higher matching rate and high speed.

Methods, apparatus, and computer program products are disclosed for debugging a computer program in a distributed debugger that include defining a conditional breakpoint conditioned upon one or more attributes of a remote execution environment, debugging the computer program in a debug session in the remote execution environment, and retrieving debug information at the breakpoint conditioned upon one or more attributes of the remote execution environment.

A system for debugging targets using various techniques, some of which are particularly useful in a multithread environment. These techniques include implementing breakpoints using out-of-line instruction emulation so that an instruction replaced with a breakpoint instruction does not need to be returned to its original location for single-step execution, executing a debugger nub for each target as part of the target task but using a nub task thread for the nub execution that is separate from the target task threads, providing immunity from breakpoints for specified threads such as the nub thread via specialized breakpoint handlers used by those threads, and virtualizing the debugger nub such that a shared root nub provides a uniform interface between the debugger and the target while specialized nubs provide differing functionality based on the type of target being debugged.

A video summarization apparatus stores, in memory, video data including video and audio, and metadata items corresponding to video segments included in the video data respectively, each of metadata items including keyword and characteristic information of content of corresponding video segment, selects metadata items including specified keyword from metadata items, to obtain selected metadata items, extracts, from video data, video segment corresponding to selected metadata items, to obtain selected video segments, generates summarized video data by connecting extracted video segments, detects audio breakpoints included in video data, to obtain audio segments segmented by audio breakpoints, extracts from video data, audio segments corresponding to extracted video segments as audio narrations, and modifies ending time of video segment in summarized video data so that ending time of video segment in summarized video data coincides with or is later than ending time of corresponding audio segment of extracted audio segments.

A music retrieval system which take an input melody as the query. In one embodiment, changes or differences in the distribution of energy across the frequency spectrum over time are used to find breakpoints in the input melody in order to separate it into distinct notes. In another embodiment the breakpoints are identified based on changes in pitch over time. A confidence level is preferably associated with each breakpoint and/or note extracted from the input melody. The confidence level is based on one or more of: changes in pitch, absolute values of a spectral energy distribution indicator, relative values of the spectral energy distribution indicator, and the energy level of the input melody. The process of matching the input melody with songs in the music database is based on minimizing a cost computation that takes into account errors in the insertion and deletion of notes, and penalizes these errors in accordance with the confidence levels of the breakpoints and/or notes.

A system and method are presented for saving and restoring the state of a diagnostic module in a microprocessor. The diagnostic module contains a complex break state machine, capable of halting the microprocessor at specified breakpoints. These breakpoints are based on combinations of instruction locations and/or data values, along with previous machine states. A problem occurs with prior art diagnostic modules when the processor returns from an exception occurring during a fix-up cycle inserted to handle a data load miss associated with an instruction located in a branch delay slot (the location immediately following a conditional branch instruction). Under these circumstances, the exception handler restores the program counter to the location of the branch instruction, causing the branch to be re-executed. The prior art state machine erroneously updates its internal state a second time when the branch is re-executed. According to the system and method disclosed herein, at each state change the previous machine state saved. Thus, when a branch instruction is re-executed, the complex break state machine of the present invention is restored to its previous state, thereby correcting the error.

Clinical management of human cancer is dependent on the accurate monitoring of residual and recurrent tumors. We have developed a method, called personalized analysis of rearranged ends (PARE), which can identify translocations in solid tumors. Analysis of four colorectal and two breast cancers revealed an average of nine rearranged sequences (range 4 to 15) per tumor. Polymerase chain reaction with primers spanning the breakpoints were able to detect mutant DNA molecules present at levels lower than 0.001% and readily identified mutated circulating DNA in patient plasma samples. This approach provides an exquisitely sensitive and broadly applicable approach for the development of personalized biomarkers to enhance the clinical management of cancer patients.

The invention relates to the field of technology, in particular to a webpage-crawling-based crawler technology. After URL (uniform resource locator) link addresses are initiated, the technology comprises the following steps: (1), reading the URL link addresses at the head of a running queue in the queue from a given access by using an equilibrium assignment crawler thread; (2), judging whether the URL link addresses exist or not, stopping crawling if the URL link addresses exist, otherwise crawling and placing the URL link addresses in a completion queue; (3), extracting webpages corresponding to the URL link addresses which are placed in the completion queue; (4), filtering the URL link addresses in the extracted webpages, keeping and writing effective URL link addresses into the running queue, and returning to the step (1) to repeat the steps. According to the technology, corresponding resources are crawled from the Internet, and the URL link addresses are rewritten and stored to pertinently acquire Internet information based on objects set by users according to tasks created by the users; in addition, multi-machine parallel crawling, multi-task scheduling, continuous crawling from a breakpoint, distributed crawler management and crawler control can be implemented.

The invention relates to a method for detecting the variation of copy numbers of genomes. The method specifically comprises the following steps: sequencing sample genomes to obtain genome sequences; aligning the sequences to a reference genome to obtain the positions of the sequences on the genome; dividing the reference genome into windows with a certain length and carrying out statistics on the sequences and basic groups falling on the windows; correcting the windows according to the sequences and GC contents of the basic groups; determining threshold values with normal copy numbers, scanning the windows and determining whether the copy numbers of the windows varies; and precisely scanning the abnormal windows to determine the precise breakpoints and then determine the specific variation position of the copy numbers. According to the method, the sensitivity of the detection for the variation of the copy numbers of the genomes can be improved through utilizing three mean values, carrying out window correction, determining the threshold values with normal copy numbers, precisely scanning the abnormal windows and determining the precise breakpoints and the specific variation positions of the copy numbers; and the method is easy, simple and feasible to operate, high in efficiency, low in cost and beneficial for popularization and application.

The invention discloses a method and a device for realizing the breakpoint continued playing among multimedia devices. The method is based on multiple multimedia devices which intercommunicate with each other and share resources in a network and comprises the following processes: when the multimedia resource in displaying currently is displayed in a disconnected manner by the multimedia device, the breakpoint playing position information of the multimedia resource is saved, and the multimedia resource information and the breakpoint playing position information are sent to the other multimedia devices in the network; the other multimedia devices in the network receives and saves the multimedia resource information and the breakpoint playing position information thereof; and the multimedia devices play the corresponding multimedia resource based on the saved breakpoint playing position information. By using the method, the multimedia devices can mutually memorize the playing position of the multimedia resource on which is played finally, thereby realizing the breakpoint continued playing among different devices.

The invention discloses a cluster fault tolerance system, a device and a method. The system includes: a remote checkpoint server which is used to respond the remote checkpoint request from a faulty node and execute the checkpoint operation; a node faulty checking module which is used to monitor the operating system of a local node and the running state of an assigned process and to trigger a remote checkpoint; and a communication system checkpoint module which is used to realize the checkpoint of the communication device and support the recovery function of communication breakpoint. The invention provides localized fast fault restoration for the parallel processing cluster, has a lower overhead and good expansibility, and makes ideal availability for the cluster system with ten billions and hundred billions calculation scale.

The invention discloses a method for continuously playing videos of multi-terminal equipment and a video server. The method comprises the steps of: obtaining a user identity of the user after the user logs in, inquiring a user information base according to the user identity, obtaining the information of a video play breakpoint corresponding to the user identity, and providing a video stream to the multi-terminal equipment from the video play breakpoint to enable the terminal equipment to play the video from the video play breakpoint. The method for continuously playing videos of multi-terminal equipment and the video server provided by the invention have the advantages of continuously playing videos among multiple terminal equipments.

A debugger inserts instrumentation hooks in a multi-threaded computer program that allow collecting a program trace and that provide timestamps that correspond to the program trace. When a breakpoint in a first thread is encountered, a timestamp corresponding to the breakpoint is retrieved. Execution of the other threads may continue until the debugger is able to halt their execution. Once the execution of all threads has been halted, the program trace for each thread is traced backwards to a point where the timestamp is less than the breakpoint timestamp. Instructions are then executed, one by one, until the execution time of the instructions plus the timestamp is approximately the same as the breakpoint timestamp. The instruction in the program trace display is then highlighted to indicate the instruction that was likely being executed when the breakpoint in the first thread is encountered.