diff options
Diffstat (limited to 'gnulib/import/glthread/threadlib.c')
| -rw-r--r-- | gnulib/import/glthread/threadlib.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/gnulib/import/glthread/threadlib.c b/gnulib/import/glthread/threadlib.c index 28bf3c6..373806e 100644 --- a/gnulib/import/glthread/threadlib.c +++ b/gnulib/import/glthread/threadlib.c @@ -1,5 +1,5 @@ /* Multithreading primitives. - Copyright (C) 2005-2020 Free Software Foundation, Inc. + Copyright (C) 2005-2021 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -24,11 +24,44 @@ /* Use the POSIX threads library. */ +# include <errno.h> # include <pthread.h> # include <stdlib.h> # if PTHREAD_IN_USE_DETECTION_HARD +# if defined __FreeBSD__ || defined __DragonFly__ /* FreeBSD */ + +/* Test using pthread_key_create. */ + +int +glthread_in_use (void) +{ + static int tested; + static int result; /* 1: linked with -lpthread, 0: only with libc */ + + if (!tested) + { + pthread_key_t key; + int err = pthread_key_create (&key, NULL); + + if (err == ENOSYS) + result = 0; + else + { + result = 1; + if (err == 0) + pthread_key_delete (key); + } + tested = 1; + } + return result; +} + +# else /* Solaris, HP-UX */ + +/* Test using pthread_create. */ + /* The function to be executed by a dummy thread. */ static void * dummy_thread_func (void *arg) @@ -62,6 +95,8 @@ glthread_in_use (void) return result; } +# endif + # endif #endif |