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pthread_attr_init(3c)

pthread_attr_init(3C)    Standard C Library Functions    pthread_attr_init(3C)

NAME
       pthread_attr_init, pthread_attr_destroy - initialize or destroy threads
       attribute object

SYNOPSIS
       #include <pthread.h>

       int pthread_attr_init(pthread_attr_t *attr);


       int pthread_attr_destroy(pthread_attr_t *attr);

DESCRIPTION
       The function pthread_attr_init() initializes a thread attributes object
       attr  with  the default value for all of the individual attributes used
       by a given implementation.


       The resulting attribute object (possibly modified by setting individual
       attribute values), when used by pthread_create(), defines  the  attrib‐
       utes  of  the thread created. A single attributes object can be used in
       multiple simultaneous calls to pthread_create().


       The pthread_attr_init() function initializes a thread attributes object
       ( attr) with the default value for each attribute as follows:

       tab(); lw(1.83i) lw(1.83i) lw(1.83i) lw(1.83i) lw(1.83i) lw(1.83i)  At‐
       tributeDefault     ValueMeaning     of     Default     _    contention‐
       scopePTHREAD_SCOPE_PROCESSresource competition within  process  detach‐
       statePTHREAD_CREATE_JOINABLEjoinable  by  other  threads stackaddrNULL‐
       stack allocated by system stacksize01 or 2  megabyte  priority0priority
       of  the  thread policySCHED_OTHERtraditional time-sharing policy inher‐
       itschedPTHREAD_INHERIT_SCHEDT{ scheduling policy and parameters are in‐
       herited from the creating thread T} guardsizePAGESIZET{ size  of  guard
       area for a thread's created stack T} threadnameNULLstring to be associ‐
       ated with this thread



       The pthread_attr_destroy() function destroys a thread attributes object
       ( attr), which cannot be reused until it is reinitialized. An implemen‐
       tation  may  cause pthread_attr_destroy() to set attr to an implementa‐
       tion-dependent invalid value. The behavior of using the attribute after
       it has been destroyed is undefined.

RETURN VALUES
       Upon successful completion,  pthread_attr_init()  and  pthread_attr_de‐
       stroy()  return a value of 0. Otherwise, an error number is returned to
       indicate the error.

ERRORS
       The pthread_attr_init() function will fail if:

       ENOMEM    Insufficient memory exists to initialize the  thread  attrib‐
                 utes object.



       The pthread_attr_destroy() function may fail if:

       EINVAL    attr is invalid.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _  Stan‐
       dardSee standards(7).


SEE ALSO
       pthread_attr_getdetachstate(3C),         pthread_attr_getguardsize(3C),
       pthread_attr_getinheritsched(3C), pthread_getattr_np(3C),  pthread_get‐
       name_np(3C),  pthread_attr_getschedparam(3C), pthread_attr_getschedpol‐
       icy(3C),   pthread_attr_getscope(3C),    pthread_attr_getstackaddr(3C),
       pthread_attr_getstacksize(3C),         pthread_attr_setdetachstate(3C),
       pthread_attr_setguardsize(3C),        pthread_attr_setinheritsched(3C),
       pthread_attr_setname_np(3C),            pthread_attr_setschedparam(3C),
       pthread_attr_setschedpolicy(3C),             pthread_attr_setscope(3C),
       pthread_attr_setstackaddr(3C),           pthread_attr_setstacksize(3C),
       pthread_create(3C), sysconf(3C), attributes(7), standards(7)

Oracle Solaris 11.4               14 May 2018            pthread_attr_init(3C)
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