Adding upstream version 255.4.upstream/255.4

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

1 files changed, 36 insertions, 0 deletions

diff --git a/src/basic/inotify-util.h b/src/basic/inotify-util.h
new file mode 100644
index 0000000..665fdac
--- /dev/null
+++ b/src/basic/inotify-util.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <inttypes.h>
+#include <limits.h>
+#include <stddef.h>
+#include <sys/inotify.h>
+
+#include "log.h"
+
+#define INOTIFY_EVENT_MAX (offsetof(struct inotify_event, name) + NAME_MAX + 1)
+
+/* This evaluates arguments multiple times */
+#define FOREACH_INOTIFY_EVENT_FULL(e, buffer, sz, log_level)            \
+        for (struct inotify_event *e = NULL;                            \
+             inotify_event_next(&buffer, sz, &e, log_level); )
+
+#define FOREACH_INOTIFY_EVENT(e, buffer, sz)                    \
+        FOREACH_INOTIFY_EVENT_FULL(e, buffer, sz, LOG_DEBUG)
+
+#define FOREACH_INOTIFY_EVENT_WARN(e, buffer, sz)               \
+        FOREACH_INOTIFY_EVENT_FULL(e, buffer, sz, LOG_WARNING)
+
+union inotify_event_buffer {
+        struct inotify_event ev;
+        uint8_t raw[INOTIFY_EVENT_MAX];
+};
+
+bool inotify_event_next(
+                union inotify_event_buffer *buffer,
+                size_t size,
+                struct inotify_event **iterator,
+                int log_level);
+
+int inotify_add_watch_fd(int fd, int what, uint32_t mask);
+int inotify_add_watch_and_warn(int fd, const char *pathname, uint32_t mask);