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pthread_mutexattr_init ()
  • >> pthread_mutexattr_init (3) ( Solaris man: Библиотечные вызовы )
  • pthread_mutexattr_init (3) ( FreeBSD man: Библиотечные вызовы )
  • pthread_mutexattr_init (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    pthread_mutexattr_init, pthread_mutexattr_destroy - initialize or destroy mutex attributes object
     
    

    SYNOPSIS

    cc -mt [ flag... ] file... -lpthread [ library... ]
    #include <pthread.h>
    
    int pthread_mutexattr_init(pthread_mutexattr_t *attr);
    

    int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
    

     

    DESCRIPTION

    The pthread_mutexattr_init() function initializes a mutex attributes object attr with the default value for all of the attributes defined by the implementation.

    The effect of initializing an already initialized mutex attributes object is undefined.

    After a mutex attributes object has been used to initialize one or more mutexes, any function affecting the attributes object (including destruction) does not affect any previously initialized mutexes.

    The pthread_mutexattr_destroy() function destroys a mutex attributes object; the object becomes, in effect, uninitialized. An implementation may cause pthread_mutexattr_destroy() to set the object referenced by attr to an invalid value. A destroyed mutex attributes object can be re-initialized using pthread_mutexattr_init(); the results of otherwise referencing the object after it has been destroyed are undefined.  

    RETURN VALUES

    Upon successful completion, pthread_mutexattr_init() and pthread_mutexattr_destroy() return 0. Otherwise, an error number is returned to indicate the error.  

    ERRORS

    The pthread_mutexattr_init() function may fail if:

    ENOMEM

    Insufficient memory exists to initialize the mutex attributes object.

    The pthread_mutexattr_destroy() function may fail if:

    EINVAL

    The value specified by attr is invalid.

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityStandard

    MT-Level

     

    SEE ALSO

    pthread_cond_init(3C), pthread_create(3C), pthread_mutex_init(3C), pthread_mutexattr_settype(3C), attributes(5), standards(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    ATTRIBUTES
    SEE ALSO


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