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Add config detection for JEMALLOC_HAVE_PTHREAD_SET_NAME_NP.

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and use it on the background thread name setting.
This commit is contained in:
Qi Wang 2023-05-10 16:20:14 -07:00 committed by Qi Wang
parent 5bac384970
commit 6ea8a7e928
3 changed files with 14 additions and 1 deletions
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10
configure.ac
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@ -1926,6 +1926,16 @@ dnl Check if we have dlsym support.
if test "x${je_cv_pthread_getname_np}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_PTHREAD_GETNAME_NP], [ ], [ ])
fi
dnl Check if pthread_set_name_np is available with the expected API.
JE_COMPILABLE([pthread_set_name_np(3)], [
#include <pthread.h>
#include <pthread_np.h>
], [
pthread_set_name_np(pthread_self(), "set_name_test");
], [je_cv_pthread_set_name_np])
if test "x${je_cv_pthread_set_name_np}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_PTHREAD_SET_NAME_NP], [ ], [ ])
fi
dnl Check if pthread_get_name_np is not necessarily present despite
dnl the pthread_set_name_np counterpart
JE_COMPILABLE([pthread_get_name_np(3)], [

3
include/jemalloc/internal/jemalloc_internal_defs.h.in
View File

@ -89,6 +89,9 @@
/* Defined if pthread_getname_np(3) is available. */
#undef JEMALLOC_HAVE_PTHREAD_GETNAME_NP
/* Defined if pthread_set_name_np(3) is available. */
#undef JEMALLOC_HAVE_PTHREAD_SET_NAME_NP
/* Defined if pthread_get_name_np(3) is available. */
#undef JEMALLOC_HAVE_PTHREAD_GET_NAME_NP

2
src/background_thread.c
View File

@ -467,7 +467,7 @@ background_thread_entry(void *ind_arg) {
assert(thread_ind < max_background_threads);
#ifdef JEMALLOC_HAVE_PTHREAD_SETNAME_NP
pthread_setname_np(pthread_self(), "jemalloc_bg_thd");
#elif defined(__FreeBSD__) || defined(__DragonFly__)
#elif defined(JEMALLOC_HAVE_PTHREAD_SET_NAME_NP)
pthread_set_name_np(pthread_self(), "jemalloc_bg_thd");
#endif
if (opt_percpu_arena != percpu_arena_disabled) {