NAME

pthread_getname_np — get and set descriptive name of a thread

LIBRARY

POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS

#include <pthread.h>

int
pthread_getname_np(pthread_t thread, char *name, size_t len);

int
pthread_setname_np(pthread_t thread, const char *name, void *arg);

DESCRIPTION

The pthread_getname_np() function obtains the descriptive name of a thread. It takes the following arguments:

thread

The thread whose descriptive name will be obtained.

name

The buffer to be filled with the descriptive name of the thread.

len

The size of the buffer name in bytes.

The pthread_setname_np() function sets the descriptive name of a thread. It takes the following arguments:

thread

The thread whose descriptive name will be set.

name

The printf(3) format string to be used to construct the descriptive name of the thread. The resulted descriptive name should be shorter than PTHREAD_MAX_NAMELEN_NP.

arg

The printf(3) argument used with name.

RETURN VALUES

Both functions return 0 on success. Otherwise, an error number is returned to indicate the error.

COMPATIBILITY

Both functions are non-standard extensions.

ERRORS

Both functions may fail if:

[EINVAL]

Invalid parameter.

[ESRCH]

Non-existent thread.

The pthread_setname_np() function may also fail if:

[ENOMEM]

There was insufficient memory for the operation.

SEE ALSO

pthread_attr_get_np(3), pthread_attr_getname_np(3)