Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/libudev/test-udev-device-thread.c b/src/libudev/test-udev-device-thread.c
new file mode 100644
index 0000000..c082fdc
--- /dev/null
+++ b/src/libudev/test-udev-device-thread.c
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "libudev.h"
+
+#define handle_error_errno(error, msg)                          \
+        ({                                                      \
+                errno = abs(error);                             \
+                perror(msg);                                    \
+                EXIT_FAILURE;                                   \
+        })
+
+static void* thread(void *p) {
+        struct udev_device **d = p;
+
+        *d = udev_device_unref(*d);
+
+        return NULL;
+}
+
+int main(int argc, char *argv[]) {
+        struct udev_device *loopback;
+        struct udev_list_entry *entry, *e;
+        pthread_t t;
+        int r;
+
+        loopback = udev_device_new_from_syspath(NULL, "/sys/class/net/lo");
+        if (!loopback)
+                return handle_error_errno(errno, "Failed to create loopback device object");
+
+        entry = udev_device_get_properties_list_entry(loopback);
+        udev_list_entry_foreach(e, entry)
+                printf("%s=%s\n", udev_list_entry_get_name(e), udev_list_entry_get_value(e));
+
+        r = pthread_create(&t, NULL, thread, &loopback);
+        if (r != 0)
+                return handle_error_errno(r, "Failed to create thread");
+
+        r = pthread_join(t, NULL);
+        if (r != 0)
+                return handle_error_errno(r, "Failed to wait thread finished");
+
+        if (loopback)
+                return handle_error_errno(r, "loopback device is not unref()ed");
+
+        return 0;
+}