From: Bruno Haible <bruno@clisp.org>
Date: Tue, 6 Aug 2024 13:19:31 +0000 (+0200)
Subject: windows-recmutex: Add tests.
X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=2f65f0931f39d8276118a1000278ee02691fc32d;p=gnulib.git

windows-recmutex: Add tests.

* tests/test-windows-recmutex-type.c: New file.
* modules/windows-recmutex-tests: New file.
---

diff --git a/ChangeLog b/ChangeLog
index 244c8e3b06..5e6ab7af6a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2024-08-06  Bruno Haible  <bruno@clisp.org>
 
+	windows-recmutex: Add tests.
+	* tests/test-windows-recmutex-type.c: New file.
+	* modules/windows-recmutex-tests: New file.
+
 	windows-timedmutex: Add tests.
 	* tests/test-windows-timedmutex-type.c: New file.
 	* modules/windows-timedmutex-tests: New file.
diff --git a/modules/windows-recmutex-tests b/modules/windows-recmutex-tests
new file mode 100644
index 0000000000..85da2ab9a5
--- /dev/null
+++ b/modules/windows-recmutex-tests
@@ -0,0 +1,11 @@
+Files:
+tests/test-windows-recmutex-type.c
+tests/macros.h
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-windows-recmutex-type
+check_PROGRAMS += test-windows-recmutex-type
diff --git a/tests/test-windows-recmutex-type.c b/tests/test-windows-recmutex-type.c
new file mode 100644
index 0000000000..72cc5d17ef
--- /dev/null
+++ b/tests/test-windows-recmutex-type.c
@@ -0,0 +1,78 @@
+/* Test of locking in multithreaded situations.
+   Copyright (C) 2024 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
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2024.  */
+
+#include <config.h>
+
+#if defined _WIN32 && !defined __CYGWIN__
+
+/* Specification.  */
+# include "windows-recmutex.h"
+
+# include <errno.h>
+# include <stdio.h>
+# include <string.h>
+
+# include "macros.h"
+
+/* Returns the effective type of a lock.  */
+static const char *
+get_effective_type (glwthread_recmutex_t *lock)
+{
+  /* Lock once.  */
+  ASSERT (glwthread_recmutex_lock (lock) == 0);
+
+  /* Try to lock a second time.  */
+  int err = glwthread_recmutex_trylock (lock);
+  if (err == 0)
+    return "RECURSIVE";
+  if (err == EBUSY)
+    return "NORMAL";
+
+  return "impossible!";
+}
+
+int
+main ()
+{
+  /* Find the effective type of a lock.  */
+  const char *type;
+  {
+    glwthread_recmutex_t lock;
+    glwthread_recmutex_init (&lock);
+    type = get_effective_type (&lock);
+  }
+
+  printf ("type = %s\n", type);
+
+  ASSERT (strcmp (type, "RECURSIVE") == 0);
+
+  return test_exit_status;
+}
+
+#else
+
+# include <stdio.h>
+
+int
+main ()
+{
+  fputs ("Skipping test: not a native Windows system\n", stderr);
+  return 77;
+}
+
+#endif