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| CodeSonar® 9.0p0 Hot Tips | CONFIDENTIAL | CodeSecure Inc |
An attempt to acquire a lock using a handle that is not known to correspond to a valid lock.
| Class Name | Unknown Lock | ||||||
|---|---|---|---|---|---|---|---|
| Significance | reliability | ||||||
| Mnemonic | CONCURRENCY.LOCK.UNKNOWN | ||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Unknown Lock" |
Japanese (ja)
#include <pthread.h>
pthread_mutex_t *undefined_get_mutex();
int concurrency_lock_unknown(){
return pthread_mutex_lock( NULL ); /* 'Unknown Lock' warning issued here */
}
Warnings can be triggered by the following functions.
The following configuration file parameters affect checks for this warning class.