pthread_condattr_init()

Initialize the attribute object for creating condition variables

Synopsis:

#include <pthread.h>

int pthread_condattr_init( pthread_condattr_t* attr );

Arguments:

attr

A pointer to the pthread_condattr_t object that you want to initialize.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The pthread_condattr_init() function initializes the attributes in the condition variable attribute object attr to default values. Pass attr to pthread_cond_init() to define the attributes of the condition variable.

Condition variables have at least the following attributes defined:

PTHREAD_PROCESS_PRIVATE

The condition variable can be accessed only by threads created within the same process as the thread that initialized the condition variable.

PTHREAD_PROCESS_SHARED

Any thread that has access to the memory where the condition variable is allocated can access the condition variable.

For more information about these attributes, see pthread_condattr_getpshared() and pthread_condattr_setpshared().

Returns:

EOK

Success.

ENOMEM

Insufficient memory to initialize the condition variable attribute object attr.

Classification:

POSIX 1003.1 THR

See also:

pthread_condattr_destroy(), pthread_cond_init()