CN103092746B - The localization method of thread exception and system - Google Patents
The localization method of thread exception and system Download PDFInfo
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- CN103092746B CN103092746B CN201310046875.0A CN201310046875A CN103092746B CN 103092746 B CN103092746 B CN 103092746B CN 201310046875 A CN201310046875 A CN 201310046875A CN 103092746 B CN103092746 B CN 103092746B
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Abstract
The invention discloses a kind of localization method and system of thread exception, described method comprises: the running status monitoring each monitored thread, judges whether monitored thread runs abnormal; The generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread; By debugging described dump file, locate the code position at the abnormal place of monitored thread.The present invention can not only monitoring thread running status, and when thread operation exception, by internal memory and the stack information of the current operation of the automatic record thread of dump file, developer, according to the internal memory of record and stack information, just can cause the code position of thread exception by quick position.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of localization method and system of thread exception.
Background technology
Thread is the elementary cell of operating system allocation process device time, can have multiple thread run time version simultaneously in process.Each thread maintenance abnormality handling procedure, dispatching priority and a group system are used for the structure of preserving thread context before this thread of scheduling.The method of existing monitoring thread running status has two kinds:
Heartbeat detection: set up a monitoring thread, whether have heartbeat, if certain thread does not have heartbeat in a period of time, then think that this thread is abnormal if monitoring each thread;
Status poll: set up a monitoring thread, inquire about the running status of each thread at set intervals, stops if finding that certain thread runs, then thinks that this thread is abnormal;
The major defect that above two kinds of prior aries have is:
Can only the state of monitoring thread, if thread can not determine the particular location of thread exception extremely;
When thread is when carrying out complicated and time consumption computing, adopt above two kinds of technology may there is the situation of erroneous judgement thread running status.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: the localization method and the system that provide a kind of thread exception, cause the code position of thread exception with quick position.
(2) technical scheme
For solving the problem, on the one hand, the invention provides a kind of localization method of thread exception, comprising:
Monitor the running status of each monitored thread, judge whether monitored thread runs abnormal;
The generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread;
By debugging described dump file, locate the code position at the abnormal place of monitored thread.
Preferably, before the step of the running status of the monitored thread of described monitoring, also comprise the step increasing monitoring thread, monitored the running status of each monitored thread by described monitoring thread.
Preferably, monitored the running status of each monitored thread by described monitoring thread, judge monitored thread runs whether abnormal step comprises:
Described each monitored thread is registered to described monitoring thread when initialization, and sets the time-out time of each monitored thread, the initial value of counter, the initial value of frequency of abnormity and frequency of abnormity limit value;
Each monitored thread upgrades self counter in normal course of operation;
If monitoring thread finds that certain monitored thread does not upgrade the counter of self in the time-out time of described setting, then for the frequency of abnormity of this monitored thread adds 1;
If the frequency of abnormity that monitored thread is corresponding is greater than the frequency of abnormity limit value of described setting, then judges that this monitored thread occurs abnormal, and counter corresponding for this monitored thread and frequency of abnormity are reset to corresponding initial value.
Preferably, if the frequency of abnormity that described monitored thread is corresponding is greater than the frequency of abnormity limit value of described setting, then judge that this monitored thread abnormal step occurs and comprises: if continuous abnormal number of times corresponding to monitored thread is greater than the frequency of abnormity limit value of described setting, then judge that this monitored thread occurs abnormal.
Preferably, if monitoring thread finds that certain monitored thread does not upgrade the counter of self in previous time-out time, but in current time-out time, have updated the counter of self, then frequency of abnormity corresponding for described monitored thread is reset to corresponding initial value.
Preferably, after judging the step that this monitored thread generation is abnormal, be also included in the step of the identifier of recording exceptional thread in daily record.
Preferably, the step of described debugging dump file comprises: find corresponding abnormal thread according to the identifier of described abnormal thread.
Preferably, described dump file is dmp file.
On the other hand, present invention also offers a kind of positioning system of thread exception, comprising:
Monitoring module, for monitoring the running status of each monitored thread, judges whether monitored thread runs abnormal;
Dump file generation module, for the generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread;
Abnormal locating module, for by the described dump file of debugging, locates the code position at the abnormal place of monitored thread.
(3) beneficial effect
The present invention can not only monitoring thread running status, and when thread operation exception, by internal memory and the stack information of the current operation of the automatic record thread of dump file, developer is according to the internal memory of record and stack information, just the code position of thread exception be can cause by quick position, debugging and the reparation of thread facilitated.
It is abnormal that the continuous abnormal number of times that the monitored thread of the present invention is corresponding just judges when being greater than the frequency of abnormity limit value of described setting that this monitored thread occurs, and can reduce the probability of some thread erroneous judgement complicated and consuming time.
Method of the present invention increases monitoring thread and can complete, and the scope of application is comparatively wide, is also suitable for announced software.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the localization method of a kind of thread exception according to the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the localization method of a kind of thread exception according to the embodiment of the present invention;
Fig. 3 is according to the sequential chart between embodiment of the present invention monitoring thread and monitored thread;
Fig. 4 is the structural schematic block diagram of the positioning system according to a kind of thread exception of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, that the present invention is described in detail is as follows.
Embodiment one:
Figure 1 shows that the schematic flow sheet of the localization method of a kind of thread exception that the present embodiment is recorded, described method comprises:
S110: the running status monitoring each monitored thread, judges whether monitored thread runs abnormal;
S120: the generation dump file when judging to obtain monitored thread generation exception;
S130: by debugging described dump file, locates the code position at the abnormal place of monitored thread.
In the present embodiment, described dump file comprises internal memory, the stack information of in-process each thread.
The method of the present embodiment can not only monitoring thread running status, and when thread operation exception, by internal memory and the stack information of the current operation of the automatic record thread of dump file, developer is according to the internal memory of record and stack information, just the code position of thread exception be can cause by quick position, debugging and the reparation of thread facilitated.
Embodiment two:
Figure 2 shows that the schematic flow sheet of the localization method of the another kind of thread exception that the present embodiment is recorded, described method comprises:
S210: increase monitoring thread in the application;
S220: described each monitored thread is registered to described monitoring thread when initialization, and set the time-out time of each monitored thread, the initial value of counter, the initial value of frequency of abnormity and frequency of abnormity limit value;
S230: each monitored thread upgrades self counter in normal course of operation;
S240: if monitoring thread finds that certain monitored thread does not upgrade the counter of self in the time-out time of described setting, then for the frequency of abnormity of this monitored thread adds 1;
S250: if continuous abnormal number of times corresponding to monitored thread is greater than the frequency of abnormity limit value of described setting, then judge that this monitored thread occurs abnormal, generate described dump file, and counter corresponding for this monitored thread and frequency of abnormity are reset to corresponding initial value, the identifier of recording exceptional thread in daily record; Wherein, in order to obtain the continuous abnormal number of times of monitored thread, if monitoring thread finds that certain monitored thread does not upgrade the counter of self in previous time-out time, but in current time-out time, have updated the counter of self, then frequency of abnormity corresponding for described monitored thread is reset to corresponding initial value; The identifier of described abnormal thread is used for finding corresponding abnormal thread when debugging dump file according to the identifier of described abnormal thread;
S260: by debugging described dump file, locates the code position at the abnormal place of monitored thread.
In the present embodiment, described dump file is dmp file, in the present embodiment when determining monitored thread and occurring abnormal, generates described dmp file by calling MiniDumpWriteDump function; After generating dmp file, by WinDBG instrument debugging dmp file, can the abnormal thread operation code position of quick position.
Fig. 3 is the sequential chart between the present embodiment monitoring thread and monitored thread, as shown in Figure 3, comprises a monitoring thread Monitor and three monitored thread ThreadA, ThreadB and ThreadC in this implementation.Wherein, monitored thread ThreadA and ThreadB of the first two, successively through initialization, is registered to described monitoring thread, and sets time-out time Ti, counter C1
iinitial value, frequency of abnormity C2
iinitial value and frequency of abnormity limit value; Monitored thread ThreadC does not also carry out initialization.
The counter C1 of self is constantly upgraded in the operational process of two monitored thread ThreadA and ThreadB
i, monitoring thread finds that certain monitored thread is in the time-out time Ti of setting, fails to upgrade its counter C1i, then think that this thread is abnormal, its frequency of abnormity C2
iadd 1;
At monitored thread continuous abnormal number of times C2
iwhen being greater than the frequency of abnormity limit value of setting, generate described dmp file, and counter reset C1
iwith frequency of abnormity C2
ifor initial value.
It is abnormal that the continuous abnormal number of times that monitored thread is corresponding just judges when being greater than the frequency of abnormity limit value of described setting that this monitored thread occurs, and can reduce the probability of some thread erroneous judgement complicated and consuming time.
Embodiment three:
Figure 4 shows that the structural schematic block diagram of the positioning system of a kind of thread exception that the present embodiment is recorded, described system comprises:
Monitoring module 410, for monitoring the running status of each monitored thread, judges whether monitored thread runs abnormal;
Dump file generation module 420, for the generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread;
Abnormal locating module 430, for by the described dump file of debugging, locates the code position at the abnormal place of monitored thread.
The system of the present embodiment can not only monitoring thread running status, and when thread operation exception, by internal memory and the stack information of the current operation of the automatic record thread of dump file, developer is according to the internal memory of record and stack information, just the code position of thread exception be can cause by quick position, debugging and the reparation of thread facilitated.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (7)
1. a localization method for thread exception, is characterized in that, comprising:
Monitor the running status of each monitored thread, judge whether monitored thread runs abnormal;
The generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread;
By debugging described dump file, locate the code position at the abnormal place of monitored thread;
Before the step of the running status of the monitored thread of described monitoring, also comprise the step increasing monitoring thread, monitored the running status of each monitored thread by described monitoring thread;
Monitored the running status of each monitored thread by described monitoring thread, judge monitored thread runs whether abnormal step comprises:
Described each monitored thread is registered to described monitoring thread when initialization, and sets the time-out time of each monitored thread, the initial value of counter, the initial value of frequency of abnormity and frequency of abnormity limit value;
Each monitored thread upgrades self counter in normal course of operation;
If monitoring thread finds that certain monitored thread does not upgrade the counter of self in the time-out time of described setting, then for the frequency of abnormity of this monitored thread adds 1;
If the frequency of abnormity that monitored thread is corresponding is greater than the frequency of abnormity limit value of described setting, then judges that this monitored thread occurs abnormal, and counter corresponding for this monitored thread and frequency of abnormity are reset to corresponding initial value.
2. the method for claim 1, it is characterized in that, if the frequency of abnormity that described monitored thread is corresponding is greater than the frequency of abnormity limit value of described setting, then judge that this monitored thread abnormal step occurs and comprises: if continuous abnormal number of times corresponding to monitored thread is greater than the frequency of abnormity limit value of described setting, then judge that this monitored thread occurs abnormal.
3. method as claimed in claim 2, it is characterized in that, if monitoring thread finds that certain monitored thread does not upgrade the counter of self in previous time-out time, but in current time-out time, have updated the counter of self, then frequency of abnormity corresponding for described monitored thread is reset to corresponding initial value.
4. the method for claim 1, is characterized in that, is also included in the step of the identifier of recording exceptional thread in daily record after judging the step that this monitored thread generation is abnormal.
5. method as claimed in claim 4, it is characterized in that, the step of described debugging dump file comprises: find corresponding abnormal thread according to the identifier of described abnormal thread.
6. the method for claim 1, is characterized in that, described dump file is dmp file.
7. a positioning system for thread exception, is characterized in that, comprising:
Monitoring module, for being monitored the running status of each monitored thread by monitoring thread, judge whether monitored thread runs abnormal, comprise: described each monitored thread is registered to described monitoring thread when initialization, and set the time-out time of each monitored thread, the initial value of counter, the initial value of frequency of abnormity and frequency of abnormity limit value; Each monitored thread upgrades self counter in normal course of operation; If monitoring thread finds that certain monitored thread does not upgrade the counter of self in the time-out time of described setting, then for the frequency of abnormity of this monitored thread adds 1; If the frequency of abnormity that monitored thread is corresponding is greater than the frequency of abnormity limit value of described setting, then judges that this monitored thread occurs abnormal, and counter corresponding for this monitored thread and frequency of abnormity are reset to corresponding initial value;
Dump file generation module, for the generation dump file when judging to obtain monitored thread generation exception, described dump file comprises internal memory, the stack information of in-process each thread;
Abnormal locating module, for by the described dump file of debugging, locates the code position at the abnormal place of monitored thread.
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| CN201310046875.0A CN103092746B (en) | 2013-02-05 | 2013-02-05 | The localization method of thread exception and system |
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| CN103092746B true CN103092746B (en) | 2015-12-02 |
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| CN113407368B (en) * | 2020-03-16 | 2023-03-21 | 广东龙芯中科电子科技有限公司 | Process management method and device and electronic equipment |
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