From 1ea74fca3a3c737f3901bc10d879b7830b3528bf Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 25 Oct 2022 21:41:17 +0900
Subject: [PATCH] core/device: also serialize/deserialize device syspath

The field will be used in later commits.
---
 src/core/device.c | 13 ++++++++++++-
 src/core/device.h |  2 +-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/core/device.c b/src/core/device.c
index 9d694aa..26a6d1f 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -114,6 +114,7 @@ static void device_done(Unit *u) {
         assert(d);
 
         device_unset_sysfs(d);
+        d->deserialized_sysfs = mfree(d->deserialized_sysfs);
         d->wants_property = strv_free(d->wants_property);
 }
 
@@ -295,6 +296,9 @@ static int device_serialize(Unit *u, FILE *f, FDSet *fds) {
         assert(f);
         assert(fds);
 
+        if (d->sysfs)
+                (void) serialize_item(f, "sysfs", d->sysfs);
+
         (void) serialize_item(f, "state", device_state_to_string(d->state));
 
         if (device_found_to_string_many(d->found, &s) >= 0)
@@ -312,7 +316,14 @@ static int device_deserialize_item(Unit *u, const char *key, const char *value,
         assert(value);
         assert(fds);
 
-        if (streq(key, "state")) {
+        if (streq(key, "sysfs")) {
+                if (!d->deserialized_sysfs) {
+                        d->deserialized_sysfs = strdup(value);
+                        if (!d->deserialized_sysfs)
+                                log_oom_debug();
+                }
+
+        } else if (streq(key, "state")) {
                 DeviceState state;
 
                 state = device_state_from_string(value);
diff --git a/src/core/device.h b/src/core/device.h
index dfe8a13..99bf134 100644
--- a/src/core/device.h
+++ b/src/core/device.h
@@ -20,7 +20,7 @@ typedef enum DeviceFound {
 struct Device {
         Unit meta;
 
-        char *sysfs;
+        char *sysfs, *deserialized_sysfs;
 
         /* In order to be able to distinguish dependencies on different device nodes we might end up creating multiple
          * devices for the same sysfs path. We chain them up here. */
-- 
2.33.0