49 results about "Infinite loop" patented technology

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for unrolling an infinite loop during ray query traversal. A processor obtains, during a compile time, a number of loops associated with a BVH traversal based on a number of ray triangle intersections and a number of ray box intersections and / or a set of features associated with the BVH traversal and code generation associated with a shader. The processor determines, during the compile time, a loop unroll factor based on at least one of the obtained number of loops or the obtained set of features. The processor adjusts, during the compile time, a number of iterations of a loop associated with the BVH traversal based on the loop unroll factor. The processor outputs an indication of the adjusted number of iterations.

The invention relates to the technical field of software security, and discloses an IDA microcode-based digital multimeter customized code obfuscator construction method and system, and the method comprises the steps: carrying out the obfuscation replacement of a measurement algorithm and a data processing method in a digital multimeter code based on an instruction replacement technology; confusing a control flow of the digital multimeter based on a false control flow technology, namely obtaining a calling relation of basic blocks to reconstruct an original program, and avoiding generation of an endless loop in a symbolic execution process through a method of assigning a value to an opaque predicate in advance; randomly modifying variable names, identifiers and function names of the sensitive data information of the digital multimeter based on a variable name confusion algorithm; and carrying out decompilation and code conversion on the obfuscation algorithm based on the IDA microcode, and constructing the digital multimeter customized code obfuscator based on the IDA microcode. The method can be integrated into the development environment of the digital multimeter, the safety protection level of the digital multimeter is improved, and the measurement data is prevented from being illegally stolen.

The application provides a dead loop processing method and device, electronic equipment and storage medium, a preset script function is run, and the number of instructions executed when the preset script function is run is monitored; if the number of instructions is greater than a preset number threshold, a function call stack when the preset script function executes instructions is acquired and recorded; the number of times that the function call stack is recorded within a preset time period is determined, if the number of times recorded satisfies a preset condition, the function call stack is determined as a dead loop stack; the dead loop stack is interrupted to remove the current dead loop. Through monitoring the number of instruction executions and the number of times that the function call stack is recorded, the method can realize fault positioning to the function point level, greatly shortening the dead loop positioning time; meanwhile, after the existence of a dead loop problem is found, the method automatically removes the dead loop, improving the server dead loop troubleshooting efficiency.

The invention discloses a position contract delivery method, and relates to the technical field of informatization management, and the method comprises the steps: carrying out the preprocessing of a plurality of to-be-delivered position contracts, and obtaining a plurality of groups of processed to-be-delivered position contracts of the same user corresponding to the currency type; obtaining the account amount of each currency in the same group and the to-be-delivered amount of the processed to-be-delivered position contract; determining the priority of delivered currencies and the priority of the to-be-delivered position contract corresponding to the currencies according to the currency types of the same group, the account amount of the currencies and the processed to-be-delivered amount of the to-be-delivered position contract by using the thread in the occupation state; delivering according to the currency priority and the priority of the to-be-delivered position contract; and when it is detected that delivery is completed, the resource use state of the corresponding thread is updated to be an idle state. The method has the advantages and characteristics that delivery is orderly, delivery is clean, the account fund utilization rate is high, the delivery amount is large, the delivery speed is high, and delivery is prevented from entering an endless loop.

The application relates to the field of pneumatic control and digital simulation technology, and discloses a digital simulation optimization method for a cylinder multi-working-condition direction control strategy, which comprises the following steps: building a working-condition transition directed graph and configuring local control parameters from multi-working-condition continuous sequence parameters; obtaining a steady-state node ideal boundary constraint vector according to an equation group; separating a preposed constraint and a residual feedforward to obtain an actual injection initial value vector and a virtual truncated residual vector; integrating the initial value to obtain a transient operation curve and a final state and updating the residual feedforward; converting the truncated residual into a penalty energy, combining the equivalent fluid mechanical impact dissipation energy to synthesize total hysteresis dissipation energy measurement to update the control parameters, and over-limit reconstructing the directed graph, which is sent to a bottom programmable logic controller after convergence. The application guarantees integral stability through residual separation and energy conversion, realizes multi-working-condition continuous transition optimization by combining physical dissipation limitation and topological dynamic reconstruction, and avoids calculation divergence and solutionless dead cycle.

The present application provides a method, apparatus, electronic device, and storage medium for processing network messages. The method for processing network messages is applied to a bypass blocking device and includes: obtaining a mirror message of a target network message; determining whether the mirror message is a blocking message sent by the bypass blocking device itself; if so, skipping the security detection of the mirror message and discarding the mirror message. After obtaining the mirror message, instead of directly performing security detection on the mirror message, it is first determined whether the mirror message is a blocking message sent by the bypass blocking device itself. In this way, it is possible to avoid performing security detection on the already sent blocking message again, thereby avoiding infinite loop detection of the blocking message, enabling detection only on the messages transmitted between the two communication parties, and ensuring the stable operation of the network.

An RTOS includes an event processor construct. The event processor has a task priority and an event processor handler. A stack for the event processor is allocated by the RTOS. The event processor handler is called by the RTOS each time an event is posted by an interrupt request handler or another task. Once processing of the event completes, the event processor handler returns (as opposed to remaining in an infinite loop) thereby allowing the stack allocated to the event processor to not be retained on entry into a sleep state and the memory bank containing the stack to be powered down during a sleep state.

The present disclosure relates to a client operating system deadlock debugging method and electronic device based on a hypervisor, wherein the client operating system runs tasks on a multi-core processor, and the method comprises: detecting whether the client operating system is deadlocked; wherein the deadlock of the client operating system refers to the deadlock of a processor in the multi-core processor; if the client operating system is deadlocked, a virtual fast interrupt is injected into the deadlocked client operating system through the hypervisor, so that the deadlocked client operating system can respond to the virtual fast interrupt and enter the fast interrupt exception handling process. The above scheme is used to solve the technical problem in the prior art that the client operating system running on the hypervisor cannot detect deadlock, and provides a reliable information collection and analysis method for the previously difficult to analyze dead loop fault of shutting down interrupts, which can greatly shorten the fault resolution time and improve efficiency.

The invention discloses a system update exception processing method, computer equipment and a computer readable storage medium. The system update exception handling method comprises the steps of determining exception handling measures corresponding to exception state information according to the exception state information under the condition that system update is exceptional. According to the system update exception handling method in the embodiment of the invention, the occurrence of the exception condition can be judged based on the exception state information corresponding to the exception under the condition that the system update is exceptional, and the corresponding exception handling measures are further determined according to the condition based on the judgment result; therefore, endless loop conditions such as infinite restart possibly triggered under some conditions are avoided as far as possible, and the use reliability of the system is improved.

The present invention belongs to the field of robotics, and discloses a device control method, apparatus, mobile robot, and storage medium. The method includes: determining that a cleaning area is in a slipping state when cleaning, and the cleaning area is an area that is cleaned according to a preset cleaning strategy; determining a slipping area in the cleaning area; and adjusting the cleaning strategy for the slipping area in the cleaning area to avoid slipping again. By the above method, when it is determined that the cleaning area is in a slipping state when cleaning, the slipping area is determined, and the cleaning strategy for the slipping area is adjusted to avoid slipping again, thereby avoiding the situation where the mobile robot is unable to escape from an infinite loop in the slipping area, and realizing that the mobile robot can quickly escape when slipping, thereby improving the sensitivity of the mobile robot.

The application relates to the technical field of data processing, in particular to a NOR Flash-based storage management method and system. When a read-write instruction is received after a NOR FLASH is powered off and reset, it is first judged whether a preset read-write space meets a read-write operation, and in the case of meeting, it is judged whether a read-write data length exists an out-of-bound condition, if the out-of-bound condition exists, a loop read-write mode is adopted, specifically, a part corresponding to no out-of-bound in the read-write data is directly read and written from a read-write address obtained in step S1, and a part corresponding to the out-of-bound is read and written from a start position of the preset read-write space, so that after power-off, the read-write can be continued, power-off is not felt, and infinite loop read-write is achieved in limited space.

The application provides a method and device for detecting a dead loop, which can solve the problem of incorrect identification of a dead loop, thereby improving the detection accuracy of the dead loop, and can be applied to a terminal device or a network device. The method comprises the following steps: determining an intermediate representation of an application program, the intermediate representation being determined according to source code and / or an installation package of the application program, the intermediate representation comprising a linear intermediate representation and a graph intermediate representation; obtaining a loop body according to the intermediate representation; and determining that the loop body has a risk of causing a dead loop.

The application discloses a data linkage control method and related device, relates to the technical field of data processing, and responds to a data modification operation of a user on a current form, determines a global operation version number of the current form, and then determines a global influence field of the global operation version number according to a linkage trigger relationship graph; the preset dimension version number set containing a target state version number, a trigger state version number and a data acquisition state version number is used for anti-repetition calculation, dependent waiting calculation and anti-expiration calculation of a target field in each asynchronous linkage path in an asynchronous linkage path determined by an initial field corresponding to the data modification operation and the global influence field; and a trigger version is monitored in real time to identify and interrupt a linkage loop. Through multi-dimensional version number management and control and state machine evolution, the application can effectively reduce redundant calculation of a complex form, prevent a logic dead loop, ensure data consistency in a high-concurrency environment, and significantly improve system performance and resource utilization.

The invention discloses a chip, a chip starting method and electronic equipment, and belongs to the technical field of electronics. The chip comprises a memory and a processor, a plurality of starting programs used for starting the function modules are stored in the memory, and the processor is connected with the memory and the controller. Wherein the processor sequentially runs a plurality of starting programs, and under the condition that a first starting program corresponding to the first function module is trapped in an endless loop, the controller updates control information and indicates a chip starting strategy adopted when the first function module is in an abnormal state through the control information. Therefore, the processor can execute a corresponding chip starting strategy based on the updated control information so as to control the first starting program to quickly jump out of the endless loop. By quickly jumping out of the endless loop in the process of starting the chip, the starting efficiency of the chip can be improved while the normal starting of the chip is ensured.

This application provides a hardware-in-the-loop (HIL) testing method and apparatus based on infinite data loop playback, comprising: acquiring a data sequence group for hardware-in-the-loop testing; determining the warm-up window, data offset time, and loop start time of the loop playback sequence to be constructed based on the data sequence group and the hardware-in-the-loop testing system, wherein the loop start time is the timestamp of the last frame data of the last data sequence in the data sequence group that has been replayed; constructing a loop playback sequence based at least on the data sequence group, the warm-up window of the loop playback sequence, the data offset time, and the loop start time; inputting the loop playback sequence into the hardware-in-the-loop testing system for data loop testing processing of the domain controller under test, and obtaining test results. This solves the problem that existing HIL testing data backfeeding schemes have limited backfeeding data volume, which cannot meet the requirements of long-term continuous testing.

The invention relates to a data processing method and device, electronic equipment and a vehicle, and relates to the technical field of computer processing.The method comprises the steps that in the process of testing a program code of a to-be-tested application program, if currently-executed operation is closing a target interrupt, a UART is controlled to continue to start UART interrupt, and preset interrupts except the UART interrupt are closed; wherein the target interrupt comprises the UART interrupt and the preset interrupt; under the condition that the to-be-tested application program is in a target state, test data of the to-be-tested application program in a preset time period are obtained through the UART, UART interruption continues to be started, and preset interruption is started; wherein the target state comprises any one of an endless loop and a deadlock. Compared with the prior art, abnormal information can be positioned through a simple serial port command, and the problem of abnormal deadlock is positioned by reasonably using UART interruption.

The application discloses a filling station control method and system based on video monitoring, and particularly relates to the technical field of industrial process control, and is used for solving the problem of logical dead loop caused by video verification failure due to equipment shutdown in the existing filling station control; a standby judgment signal is generated when the sensor is abnormally overlimited, a thermodynamic entropy increase trajectory is generated based on real-time video stream calculation of fault area pixel entropy value, when the entropy increase slope is over the threshold value, a standby power supply independent power supply video system is started, the quantum state fidelity attenuation characteristics of video light quantum distribution and the chaos index of fluid motion are synchronously analyzed under the standby power supply, when the fidelity attenuation conforms to the quantum effect characteristic curve and the chaos index is over the critical threshold value, a shutdown instruction is generated, otherwise, a main power supply recovery instruction is generated, and finally the corresponding instruction is executed; the method realizes decoupling of fault verification and equipment shutdown, avoids the risk of secondary accidents, and improves fault discrimination accuracy through a physical characteristic double verification mechanism.

The application discloses a method for serial port data transmission by using time fragments, creates a ring memory buffer A, divides the ring memory buffer into N blocks averagely, and sequentially numbers each block buffer as A x , creates a length variable L x for each block buffer, counts the data length to be sent in the block, creates a pointer P x pointing to the start address of the block, sets X=1, 2...N, sets the current sent data as the data in the A C th block buffer, sets that there are L0 data to be sent in the A C th block, sets the address of the current sent data as the address pointed by the sending pointer P0, and fills the data in the A u th block next time. The application automatically sends serial port data by using time fragments, avoids invalid waiting time, adopts block processing of non-dead loop, can send serial port data and fill the data to be sent at the same time, and can execute other tasks of the program at the same time, and greatly improves the running efficiency of the program.

The embodiment of the invention provides a task repetitive scheduling method and device, computer equipment and a storage medium. The method comprises the steps that a target task is selected according to the priority and waiting duration of each task in a preset ready queue; scheduling and executing the target task, when the target task fails to be executed, setting the state of the target task to be suspended, moving the target task out of the ready queue and moving the target task into a suspended queue, and monitoring whether the target task meets a preset rescheduling condition or not in real time; when a preset rescheduling condition is met, the state of the target task is set to be ready, the target task is moved out of the suspended queue and moved into the ready queue, the target task is rescheduled and executed until the target task is successfully executed, and task scheduling is conducted in combination with the priority, the task waiting duration, the double-queue structure and state control. The problem of scheduling endless loop caused by insufficient resources or unsatisfied dependence of high-priority tasks is solved, and the task scheduling efficiency and stability are improved.

Methods, system, and non-transitory processor-readable storage medium for a log analysis system are provided herein. An example method includes monitoring, by a log analysis system, execution of a continuous integration system on an information system. The log analysis system analyzes an output log of the continuous integration system to determine a trend associated with the execution of the continuous integration system, and identifies a job executing within the continuous integration system, that is executing in an infinite loop, based on the determined trend.

The invention relates to the technical field of chip design, in particular to a random asynchronous input verification method, electronic equipment and a storage medium, and the method comprises the steps: obtaining an asynchronous event test case configured for a verification platform; after the to-be-verified design is initialized, enabling asynchronous input; creating an independent thread for an infinite loop process of each asynchronous event in a simulation stage of the to-be-verified design; the infinite loop process of each asynchronous event continuously and randomly injects a bound asynchronous event excitation signal into the to-be-verified design according to the random time, and the to-be-verified design responds to the asynchronous event excitation signal according to preset logic; when the simulation stage of the to-be-tested design is completed, asynchronous input is closed; checking a verification environment of the to-be-verified design; asynchronous events are randomly injected, and various scenes are fully verified; and by enabling and closing asynchronous input before and after the simulation stage, various abnormal false errors caused by injection in the whole simulation time are avoided.

The invention relates to the field, and discloses a game AI automatic test robot system and method, and the system comprises an initialization module which is used for shielding an interference process, configuring a game test environment and importing a model; the detection module is used for capturing a game picture at the frequency of 30fps, analyzing the picture through a CNN-LSTM scene analysis model, and outputting a scene state vector; the behavior module is used for selecting an optimal action through an epsilon-greedy strategy, mapping the optimal action into an operating system level instruction and executing the operating system level instruction, and obtaining a new scene state vector; the log module is used for monitoring whether the game is stuck, endless loop and state disorder exceptions or not, calling an Apriori model to mine association rules of exceptions, actions and states, and generating a structured log; the control circulation module is used for dynamically adjusting the test priority and resource allocation according to the checkpoint abnormal frequency and the test completion rate, and performing circulation execution; according to the invention, the test efficiency and scene coverage are improved, and the manual troubleshooting cost is reduced.

This application provides an embedded task state detection method, device, system, and storage medium. In this application, when a task transitions from a non-ready state to a ready state, the ready time of the task in the ready state is recorded. The length of the ready time represents the time during which the task cannot be scheduled. Monitoring whether a task has timed out by using the time during which it cannot be scheduled provides higher accuracy and avoids false alarms. For example, if task C is starved due to an infinite loop between tasks A and B, it will be detected when the ready time of task C exceeds a set time threshold, preventing false alarms. As another example, if task A in the system has a heavy load exceeding the CPU utilization threshold (e.g., 90%), but other tasks with lighter loads are also scheduled, the ready times of the other tasks with lighter loads will not exceed the set time threshold, thus preventing false alarms about task A's heavy load causing a scheduling timeout.

The invention discloses a filling station control method and system based on video monitoring, particularly relates to the technical field of industrial process control, and is used for solving the logic endless loop problem of video verification failure caused by equipment shutdown in existing filling station control. A standby judgment signal is generated when a sensor exceedingly exceeds a limit, a pixel entropy value of a fault area is calculated based on a real-time video stream to generate a thermodynamic entropy increasing track, and when the entropy increasing slope exceeds a threshold value, a standby power supply independent power supply video system is started. The quantum state fidelity attenuation characteristic of video light quantum distribution and the chaos index of fluid motion are synchronously analyzed under the power supply of a standby power supply, a shutdown instruction is generated when the fidelity attenuation accords with a quantum effect characteristic curve and the chaos index is supercritical threshold, otherwise, a main power supply recovery instruction is generated, and finally the corresponding instruction is executed; fault verification and equipment shutdown decoupling are ensured, the secondary accident risk is avoided, and meanwhile, the fault judgment precision is improved through a physical feature double-verification mechanism.

The present invention relates to a design method for a universal robot motion control solution, and belongs to the field of robotics. The present invention separates the straight-line speed publishing thread, so that when the robot continuously executes a single action instruction, it will not be unable to execute other action instructions due to the speed publisher falling into an infinite loop; for turning instructions, the inertial navigation angle information is used to perform geometric conversion to obtain the target angle, and the inertial navigation real-time angle is monitored while rotating in the instruction direction, which greatly improves the accuracy of rotation; the present invention designs a priority scheduler, so that the robot has controllable logic when processing multiple processes and issuing control instructions at the same time, and will not fall into a state of uncontrolled movement; the present invention customizes a message type containing more elements, which can enable users to control the robot's movement mode more flexibly. The present invention makes the robot movement more intelligent and precise, and improves the user's flexibility in controlling the robot.

Embodiments of the present application disclose a data file detection method and device, electronic equipment and storage medium, and relate to the technical field of computer network security, which can solve the problem that the detection logic of a traditional anti-virus manufacturer is limited by the number of layers to skip data file detection, or the data file is infinitely disassembled to fall into a dead loop, affecting the overall detection time and detection efficiency, and causing space waste. The data file detection method comprises obtaining a data file to be detected, disassembling the data file to be detected layer by layer to obtain a plurality of layers of derivative data, judging whether there is a data link cycle in the plurality of layers of derivative data, and if there is a data link cycle, determining that the data file is a malicious file. The present application is applicable to the detection scene of data files with derivative data, and can further improve the detection efficiency.

A method of synchronization in a training state of Universal Serial Bus (USB) includes sending SLOS1 ordered sets by a transmitter in a LOCK1 state, receiving the SLOS1 ordered sets by a receiver in the LOCK1 state, stopping the transmitter from sending training ordered sets according to a lane adapter state machine (LASM) if the transmitter sends the training ordered sets in the LOCK1 state continuously in an infinite loop. The training ordered sets include the SLOS1 ordered sets. The method further includes sending new SLOS1 ordered sets by the transmitter, receiving the new SLOS1 ordered sets by a receiver, and the transmitter and the receiver entering a LOCK2 state. The length of the new SLOS1 ordered sets is different from the length of the SLOS1 ordered sets.

The present invention discloses a method for detecting infinite loops in server - side application threads, comprising the following steps: obtaining the CPU occupancy ratio of server - side application threads, and screening out application thread A whose CPU occupancy is not less than a first preset value; obtaining all server - side application thread objects and traversing the server - side application thread list; if the name of the server - side application thread matches application thread A, continue with stack comparison: comparing the stack similarity, and screening out application thread A whose stack similarity is not less than a second preset value, that is, obtaining the application thread suspected of having an infinite loop. The present invention aims to overcome the limitations of the prior art by converting the stack path into a method call graph and using the graph edit distance to accurately calculate the stack similarity. The present invention can not only more accurately locate the infinite - loop thread, but also significantly improve the detection accuracy, reduce the false - alarm rate, and enhance the system performance and stability by retaining the complete stack call context and order information.

The invention relates to a service state synchronization method, system and device, computer equipment and a storage medium. The method comprises the following steps: receiving a first state synchronization signal sent by a first main state machine unit in a first state machine module; the first state synchronization signal is used for representing that a service corresponding to the first main state machine unit is completed; determining a first target state machine unit in the second state machine module according to the first state synchronization signal; forwarding the first state synchronization signal to a first target state machine unit; the first target state machine unit returns a first state synchronization return signal to the first main state machine unit, so that the first state machine module outputs a first indication signal in response to the first state synchronization return signal; and outputting a second indication signal, wherein the second indication signal is used for indicating to execute the next service of the second instance. By adopting the method, an infinite loop waiting phenomenon can be avoided, and service state synchronization and continuous processing are ensured.

The present invention discloses an interactive personal health management system based on artificial intelligence and an operating method. Unlike some existing methods, the present invention is not limited to a single collection device to obtain limited health data and brief basic information as the user's only health information source, but only uses it as basic health information, and proposes the concept and implementation plan of "supplementary health information". On the basis of obtaining the above-mentioned basic health information, more supplementary health information of the user is obtained by alternating or using multiple types of collection devices, as well as multiple collection channels and methods, to jointly build a comprehensive AI health information source for the user. The AI ​​health information source is analyzed and calculated using an artificial intelligence health algorithm. Once the AI ​​health information source changes, the AI ​​health assessment result is also adjusted accordingly, forming an infinite loop mechanism, which makes the user's health assessment result infinitely close to accuracy, and uses an AI health digital person to interact with the user in real time about health information in natural language.