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Full Discussion: Linux lock problem
Top Forums UNIX for Advanced & Expert Users Linux lock problem Post 302960289 by jim mcnamara on Friday 13th of November 2015 07:38:40 AM
Old 11-13-2015
By lock do you mean a user mode mutex, some kind of file lock or are you doing something with drivers?

Your description needs a lot more detail if you want a usable answer.
 

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sasl_set_mutex(3SASL)			      Simple Authentication Security Layer Library Functions			     sasl_set_mutex(3SASL)

NAME
sasl_set_mutex - set the mutex lock functions used by the SASL library SYNOPSIS
cc [ flag ... ] file ... -lsasl [ library ... ] #include <sasl/sasl.h> void sasl_set_mutex(sasl_mutex_alloc_t *a, sasl_mutex_lock_t *l, sasl_mutex_unlock_t *u, sasl_mutex_free_t *f); DESCRIPTION
Use the sasl_set_mutex() interface to set the mutex lock routines that the SASL library and plug-ins will use. PARAMETERS
a A pointer to the mutex lock allocation function f A pointer to the mutex free or destroy function l A pointer to the mutex lock function u A pointer to the mutex unlock function RETURN VALUES
sasl_set_mutex() has no return values. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWlibsasl | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) NOTES
While most of libsasl is MT-Safe, sasl_set_* modifies the global state and should be considered Unsafe. SunOS 5.10 22 Oct 2003 sasl_set_mutex(3SASL)
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