iSulad/0010-fix-memory-leak-of-top_layer.patch

From 10d3f420735925bcc747384198fdc07bb8faf0c2 Mon Sep 17 00:00:00 2001
From: "Neil.wrz" <wangrunze13@huawei.com>
Date: Wed, 24 May 2023 18:35:33 -0700
Subject: [PATCH 10/15] fix memory leak of top_layer

Signed-off-by: Neil.wrz <wangrunze13@huawei.com>
---
 .../oci/storage/image_store/image_store.c     |  3 +-
 .../remote_layer_support/image_remote_impl.c  | 50 +++++++++++++------
 .../overlay_remote_impl.c                     |  4 +-
 3 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/src/daemon/modules/image/oci/storage/image_store/image_store.c b/src/daemon/modules/image/oci/storage/image_store/image_store.c
index 473ba3c8..65b90832 100644
--- a/src/daemon/modules/image/oci/storage/image_store/image_store.c
+++ b/src/daemon/modules/image/oci/storage/image_store/image_store.c
@@ -3681,7 +3681,8 @@ int remote_append_image_by_directory_with_lock(const char *id)
     nret = snprintf(image_path, sizeof(image_path), "%s/%s", g_image_store->dir, id);
     if (nret < 0 || (size_t)nret >= sizeof(image_path)) {
         ERROR("Failed to get image path");
-        return -1;
+        ret = -1;
+        goto out;
     }
 
     ret = append_image_by_directory(image_path);
diff --git a/src/daemon/modules/image/oci/storage/remote_layer_support/image_remote_impl.c b/src/daemon/modules/image/oci/storage/remote_layer_support/image_remote_impl.c
index 92bf901d..b4a53ec1 100644
--- a/src/daemon/modules/image/oci/storage/remote_layer_support/image_remote_impl.c
+++ b/src/daemon/modules/image/oci/storage/remote_layer_support/image_remote_impl.c
@@ -126,11 +126,43 @@ out:
     return ret;
 }
 
+static int check_top_layer_and_add_image(const char *id)
+{
+    char *top_layer = NULL;
+    int ret = 0;
+
+    top_layer = remote_image_get_top_layer_from_json(id);
+    if (top_layer == NULL) {
+        WARN("Can't get top layer id for image: %s, image not add", id);
+        return 0;
+    }
+
+    if (!remote_layer_layer_valid(top_layer)) {
+        WARN("Current not find valid under layer, remote image:%s not add", id);
+        if (!map_remove(image_byid_new, (void *)id)) {
+            WARN("image %s will not be loaded from remote.", id);
+        }
+        goto out;
+    }
+
+    if (remote_append_image_by_directory_with_lock(id) != 0) {
+        ERROR("Failed to load image into memrory: %s", id);
+        if (!map_remove(image_byid_new, (void *)id)) {
+            WARN("image %s will not be loaded from remote", id);
+        }
+        ret = -1;
+    }
+
+out:
+    free(top_layer);
+
+    return ret;
+}
+
 static int remote_image_add(void *data)
 {
     char **array_added = NULL;
     char **array_deleted = NULL;
-    char *top_layer = NULL;
     map_t *tmp_map = NULL;
     bool exist = true;
     size_t i = 0;
@@ -144,20 +176,7 @@ static int remote_image_add(void *data)
     array_deleted = remote_deleted_layers(image_byid_old, image_byid_new);
 
     for (i = 0; i < util_array_len((const char **)array_added); i++) {
-        top_layer = remote_image_get_top_layer_from_json(array_added[i]);
-        if (top_layer != NULL && !remote_layer_layer_valid(top_layer)) {
-            WARN("Current not find valid under layer, remoet image:%s not added", array_added[i]);
-            if (!map_remove(image_byid_new, (void *)array_added[i])) {
-                WARN("image %s will not be loaded from remote.", array_added[i]);
-            }
-            continue;
-        }
-
-        if (remote_append_image_by_directory_with_lock(array_added[i]) != 0) {
-            ERROR("Failed to load image into memrory: %s", array_added[i]);
-            if (!map_remove(image_byid_new, (void *)array_added[i])) {
-                WARN("image %s will not be loaded from remote", array_added[i]);
-            }
+        if (check_top_layer_and_add_image(array_added[i]) != 0) {
             ret = -1;
         }
     }
@@ -179,7 +198,6 @@ static int remote_image_add(void *data)
 
     util_free_array(array_added);
     util_free_array(array_deleted);
-    free(top_layer);
 
     return ret;
 }
diff --git a/src/daemon/modules/image/oci/storage/remote_layer_support/overlay_remote_impl.c b/src/daemon/modules/image/oci/storage/remote_layer_support/overlay_remote_impl.c
index 30caf175..238506c2 100644
--- a/src/daemon/modules/image/oci/storage/remote_layer_support/overlay_remote_impl.c
+++ b/src/daemon/modules/image/oci/storage/remote_layer_support/overlay_remote_impl.c
@@ -292,7 +292,7 @@ free_out:
     return ret;
 }
 
-static int remote_image_add(struct remote_overlay_data *data)
+static int remote_overlay_add(struct remote_overlay_data *data)
 {
     int ret = 0;
     char **array_added = NULL;
@@ -346,7 +346,7 @@ void remote_overlay_refresh(struct remote_overlay_data *data)
         return;
     }
 
-    if (remote_image_add(data) != 0) {
+    if (remote_overlay_add(data) != 0) {
         ERROR("refresh overlay failed");
     }
 }
-- 
2.25.1