gettid - obtiene el identificador de hilo
Biblioteca Estándar C (
libc,
-lc)
#define _GNU_SOURCE
#include <unistd.h>
pid_t gettid(void);
gettid() returns the caller's thread ID (TID). In a single-threaded
process, the thread ID is equal to the process ID (PID, as returned by
getpid(2)). In a multithreaded process, all threads have the same PID,
but each one has a unique TID. For further details, see the discussion of
CLONE_THREAD in
clone(2).
Si no sucede ningún error, se devuelve el ID del hilo invocante.
Esta llamada nunca devuelve error.
The
gettid() system call first appeared in Linux 2.4.11. Library support
was added in glibc 2.30. (Earlier glibc versions did not provide a wrapper for
this system call, necessitating the use of
syscall(2).)
gettid() es específica de Linux y no debería ser utilizada
en programas que se pretenden que sean portables.
The thread ID returned by this call is not the same thing as a POSIX thread ID
(i.e., the opaque value returned by
pthread_self(3)).
In a new thread group created by a
clone(2) call that does not specify
the
CLONE_THREAD flag (or, equivalently, a new process created by
fork(2)), the new process is a thread group leader, and its thread
group ID (the value returned by
getpid(2)) is the same as its thread ID
(the value returned by
gettid()).
capget(2),
clone(2),
fcntl(2),
fork(2),
get_robust_list(2),
getpid(2),
ioprio_set(2),
perf_event_open(2),
sched_setaffinity(2),
sched_setparam(2),
sched_setscheduler(2),
tgkill(2),
timer_create(2)
La traducción al español de esta página del manual fue
creada por Miguel Pérez Ibars <
[email protected]> y Marcos
Fouces <
[email protected]>
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