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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0437421 (1999-11-17) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 1043 인용 특허 : 11 |
Techniques for managing multiple threads in an asynchronous environment, such as a browser, are described. As a method, instantiating an event thread in response to a user event by a shell event handler block that provides shell functions for a user event. Once the event thread as been instantiated,
Techniques for managing multiple threads in an asynchronous environment, such as a browser, are described. As a method, instantiating an event thread in response to a user event by a shell event handler block that provides shell functions for a user event. Once the event thread as been instantiated, managing the event thread by a generic thread manager block that provides a plurality of multithread management functions for the shell event handler. When required, blocking and unblocking the event thread by a blocking system that is arranged to block and unblock threads.
Techniques for managing multiple threads in an asynchronous environment, such as a browser, are described. As a method, instantiating an event thread in response to a user event by a shell event handler block that provides shell functions for a user event. Once the event thread as been instantiated,
Techniques for managing multiple threads in an asynchronous environment, such as a browser, are described. As a method, instantiating an event thread in response to a user event by a shell event handler block that provides shell functions for a user event. Once the event thread as been instantiated, managing the event thread by a generic thread manager block that provides a plurality of multithread management functions for the shell event handler. When required, blocking and unblocking the event thread by a blocking system that is arranged to block and unblock threads. ing means for detecting a current event;first computing means for computing, in response to the current event, a vector of metrics since a preceding event, wherein the vector of metrics includes metrics identified in the metric indicator trace record;storing means for storing the vector of metrics; andfourth generating means for generating overflow flags indicating metrics that have overflowed a predetermined numeric data type during a time period between the previous event and the current event.12. The data processing system of claim 11 further comprising:first generating means for generating, in response to the current event, a request for a vector of metrics since a preceding event.13. The data processing system of claim 11 further comprising:invoking means for invoking an application programming interface to retrieve a vector of metrics.14. The data processing system of claim 11 further comprising:allowing means for allowing a user to specify a plurality of metrics as a vector of metrics to be generated during a profiling phase of the instrumented program.15. The data processing system of claim 11 further comprising;outputting means for outputting trace records during execution of a profiling process in the data processing system.16. The data processing system of claim 11 further comprising:second generating means for generating a trace record for the current event, wherein the trace record comprises values equal to the computed vector of metrics.17. The data processing system of claim 11 further comprising:third generating means for generating a metric indicator trace record containing a set of flags to identify metrics to be generated in subsequently generated trace records.18. The data processing system of claim 11 further comprising, for each specified metric in the vector of metrics:first retrieving means for retrieving a stored reference metric for the preceding event, wherein the specified metric is associated with the reference metric;first obtaining means for obtaining a current reference metric; andsecond computing means for computing the specified metric in the vector of metrics as a difference between the current reference metric and die stored reference metric.19. The data processing system of claim 11 wherein the vector of metrics is a vector of thread-relative metrics.20. The data processing system of claim 19 further comprising, for each specified metric in the thread-relative vector of metrics:determining means for determining a current thread;second retrieving means for retrieving a stored reference metric for the preceding event of a current thread, wherein the specified metric is associated with the reference metric;second obtaining means for obtaining a current reference metric; andthird computing means for computing the thread-relative metric as a difference between the current reference metric and the stored reference metric.21. A computer program product in a computer-readable medium for use in a data processing system for processing events detected while profiling an instrumented program, the computer program product comprising: first instructions for receiving a metric indicator trace record containing a set of flags that identify metrics to be generated;second instructions for detecting a current event;third instructions for in response to the current event, computing a vector of metrics since a preceding event, wherein the vector of metrics includes metrics identified in the metric indicator trace record;fourth instructions for storing the vector of metrics; andfifth instructions for generating overflow flags indicating metr
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