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PTHREAD_RWLOCKATTR_SETPSHARED (3) | C library functions | Unix Manual Pages | :man

NAME

pthread_rwlockattr_setpshared - set the process shared attribute

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards
History
Bugs

LIBRARY


.Lb libc_r
.Lb libpthread
.Lb libthr

SYNOPSIS


.In pthread.h int pthread_rwlockattr_setpshared "pthread_rwlockattr_t *attr" "int pshared"

DESCRIPTION

The pthread_rwlockattr_setpshared function sets the process shared attribute of attr to the value referenced by pshared. The pshared argument may be one of two values:
PTHREAD_PROCESS_SHARED Any thread of any process that has access to the memory where the read/write lock resides can manipulate the lock.
PTHREAD_PROCESS_PRIVATE
Only threads created within the same process as the thread that initialized the read/write lock can manipulate the lock. This is the default value.

RETURN VALUES

If successful, the pthread_rwlockattr_setpshared function will return zero. Otherwise an error number will be returned to indicate the error.

ERRORS

The pthread_rwlockattr_setpshared function will fail if:
[EINVAL]
The value specified by attr or pshared is invalid.

SEE ALSO

pthread_rwlockattr_getpshared(3), pthread_rwlockattr_init(3), pthread_rwlock_init(3)

STANDARDS

HISTORY

BUGS


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