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authorJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
committerJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
commitbe8efac78d067c138ad8dda03df4336e73f94887 (patch)
tree5f5254a628ba0ef72065b93d949d1c985742ea8e /lib/glthread/threadlib.c
parent7b65dbd4ebade81d504cfe5e681292a58ad1fdf0 (diff)
New upstream version 1.0upstream/1.0
Diffstat (limited to 'lib/glthread/threadlib.c')
-rw-r--r--lib/glthread/threadlib.c64
1 files changed, 45 insertions, 19 deletions
diff --git a/lib/glthread/threadlib.c b/lib/glthread/threadlib.c
index 3534b61e..88a76bad 100644
--- a/lib/glthread/threadlib.c
+++ b/lib/glthread/threadlib.c
@@ -1,27 +1,18 @@
/* Multithreading primitives.
- Copyright (C) 2005-2018 Free Software Foundation, Inc.
+ Copyright (C) 2005-2022 Free Software Foundation, Inc.
- This program is free software: you can redistribute it and/or
- modify it under the terms of either:
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
- * the GNU Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
+ This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ GNU Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, see <https://www.gnu.org/licenses/>. */
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2005. */
@@ -29,15 +20,48 @@
/* ========================================================================= */
-#if USE_POSIX_THREADS
+#if USE_POSIX_THREADS || USE_ISOC_AND_POSIX_THREADS
/* 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)
@@ -71,6 +95,8 @@ glthread_in_use (void)
return result;
}
+# endif
+
# endif
#endif