получить идентификатор вызывающего потока (obtain ID of the calling thread)
Имя (Name)
pthread_self - obtain ID of the calling thread
Синопсис (Synopsis)
#include <pthread.h>
pthread_t pthread_self(void);
Compile and link with -pthread.
Описание (Description)
The pthread_self() function returns the ID of the calling thread.
This is the same value that is returned in *thread in the
pthread_create(3) call that created this thread.
Возвращаемое значение (Return value)
This function always succeeds, returning the calling thread's ID.
Ошибки (Error)
This function always succeeds.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│pthread_self() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008.
Примечание (Note)
POSIX.1 allows an implementation wide freedom in choosing the
type used to represent a thread ID; for example, representation
using either an arithmetic type or a structure is permitted.
Therefore, variables of type pthread_t can't portably be compared
using the C equality operator (==); use pthread_equal(3) instead.
Thread identifiers should be considered opaque: any attempt to
use a thread ID other than in pthreads calls is nonportable and
can lead to unspecified results.
Thread IDs are guaranteed to be unique only within a process. A
thread ID may be reused after a terminated thread has been
joined, or a detached thread has terminated.
The thread ID returned by pthread_self() is not the same thing as
the kernel thread ID returned by a call to gettid(2).
Смотри также (See also)
pthread_create(3), pthread_equal(3), pthreads(7)
