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14. Concurrency (CON)

Created by Martin Sebor, last modified by Carol J. Lallier on Nov 25, 2013

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Recommendations

Information for Editors
To have a new guideline automatically listed above be sure to label it con and recommendation.

Rules

Information for Editors
To have a new guideline automatically listed above be sure to label it con and rule.

Risk Assessment Summary

Rule	Severity	Likelihood	Remediation Cost	Priority	Level
CON00-C	Medium	Probable	High	P4	L3
CON01-C	Low	Probable	Medium	P4	L3
CON02-C	Medium	Probable	Medium	P8	L2
CON03-C
CON04-C	Low	Unlikely	High	P1	L3
CON05-C	Low	Probable	High	P2	L3
CON06-C
CON30-C	Medium	Unlikely	Medium	P4	L3
CON31-C	Medium	Probable	High	P4	L3
CON32-C	Medium	Probable	Medium	P8	L2
CON33-C	Medium	Probable	High	P4	L3
CON34-C	Medium	Probable	High	P4	L3
CON35-C	Low	Probable	Medium	P4	L3
CON36-C	Low	Unlikely	Medium	P2	L3
CON37-C	Low	Probable	Low	P6	L2
CON38-C	Low	Unlikely	Medium	P2	L3
CON39-C	Medium	Unlikely	High	P2	L3
CON40-C	Medium	Probable	Medium	P8	L2
CON41-C	Low	Likely	Low	P9	L2
CON42-C	Medium	Probable	Medium	P8	L2
CON43-C	Low	Probable	Medium	P4	L3
CON44-C	Low	Unlikely	Medium	P2	L3

Related Rules and Recommendations

CON04-C. Join or detach threads even if their exit status is unimportant

CON30-C. Clean up thread-specific storage

CON31-C. Do not destroy a mutex while it is locked

CON32-C. Prevent data races when accessing bit-fields from multiple threads

CON33-C. Avoid race conditions when using library functions

CON34-C. Declare objects shared between threads with appropriate storage durations

CON35-C. Avoid deadlock by locking in a predefined order

CON37-C. Do not call signal() in a multithreaded program

CON43-C. Do not allow data races in multithreaded code

CON50-CPP. Do not destroy a mutex while it is locked

POS04-C. Avoid using PTHREAD_MUTEX_NORMAL type mutex locks

POS44-C. Do not use signals to terminate threads

POS47-C. Do not use threads that can be canceled asynchronously

POS48-C. Do not unlock or destroy another POSIX thread's mutex

POS49-C. When data must be accessed by multiple threads, provide a mutex and guarantee no adjacent data is also accessed

POS50-C. Declare objects shared between POSIX threads with appropriate storage durations

POS51-C. Avoid deadlock with POSIX threads by locking in predefined order

POS53-C. Do not use more than one mutex for concurrent waiting operations on a condition variable

WIN01-C. Do not forcibly terminate execution

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