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-rw-r--r--src/basic/fs-util.c15
-rw-r--r--src/basic/fs-util.h2
2 files changed, 17 insertions, 0 deletions
diff --git a/src/basic/fs-util.c b/src/basic/fs-util.c
index 51268828af..e24e7036f7 100644
--- a/src/basic/fs-util.c
+++ b/src/basic/fs-util.c
@@ -38,6 +38,7 @@
#include "mkdir.h"
#include "parse-util.h"
#include "path-util.h"
+#include "stdio-util.h"
#include "string-util.h"
#include "strv.h"
#include "time-util.h"
@@ -493,3 +494,17 @@ int get_files_in_directory(const char *path, char ***list) {
return n;
}
+
+int inotify_add_watch_fd(int fd, int what, uint32_t mask) {
+ char path[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
+ int r;
+
+ /* This is like inotify_add_watch(), except that the file to watch is not referenced by a path, but by an fd */
+ xsprintf(path, "/proc/self/fd/%i", what);
+
+ r = inotify_add_watch(fd, path, mask);
+ if (r < 0)
+ return -errno;
+
+ return r;
+}
diff --git a/src/basic/fs-util.h b/src/basic/fs-util.h
index 0d23f8635f..517b599d6f 100644
--- a/src/basic/fs-util.h
+++ b/src/basic/fs-util.h
@@ -72,3 +72,5 @@ union inotify_event_buffer {
struct inotify_event ev;
uint8_t raw[INOTIFY_EVENT_MAX];
};
+
+int inotify_add_watch_fd(int fd, int what, uint32_t mask);