From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 23 Apr 2021 16:24:54 +0000 (+0000)
Subject: config: Add reference counting
X-Git-Tag: 0.9.28~1285^2~235
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59106773f74147550f4886aab187b08f7dea569a;p=pakfire.git

config: Add reference counting

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/config.c b/src/libpakfire/config.c
index 5bddb45df..5504aa626 100644
--- a/src/libpakfire/config.c
+++ b/src/libpakfire/config.c
@@ -44,6 +44,8 @@ struct pakfire_config_entry {
 };
 
 struct pakfire_config {
+	int nrefs;
+
 	STAILQ_HEAD(entries, pakfire_config_entry) entries;
 };
 
@@ -63,7 +65,7 @@ static void pakfire_config_entry_free(struct pakfire_config_entry* entry) {
 	free(entry);
 }
 
-void pakfire_config_free(struct pakfire_config* config) {
+static void pakfire_config_free(struct pakfire_config* config) {
 	while (!STAILQ_EMPTY(&config->entries)) {
 		struct pakfire_config_entry* entry = STAILQ_FIRST(&config->entries);
 		STAILQ_REMOVE_HEAD(&config->entries, nodes);
@@ -74,6 +76,20 @@ void pakfire_config_free(struct pakfire_config* config) {
 	free(config);
 }
 
+struct pakfire_config* pakfire_config_ref(struct pakfire_config* config) {
+	config->nrefs++;
+
+	return config;
+}
+
+struct pakfire_config* pakfire_config_unref(struct pakfire_config* config) {
+	if (--config->nrefs > 0)
+		return config;
+
+	pakfire_config_free(config);
+	return NULL;
+}
+
 static struct pakfire_config_entry* pakfire_config_create_entry(
 		struct pakfire_config* config, const char* section, const char* key) {
 	struct pakfire_config_entry* entry = calloc(1, sizeof(*entry));
diff --git a/src/libpakfire/include/pakfire/config.h b/src/libpakfire/include/pakfire/config.h
index f87fff122..d424603a0 100644
--- a/src/libpakfire/include/pakfire/config.h
+++ b/src/libpakfire/include/pakfire/config.h
@@ -28,7 +28,8 @@
 struct pakfire_config;
 
 int pakfire_config_create(struct pakfire_config** config);
-void pakfire_config_free(struct pakfire_config* config);
+struct pakfire_config* pakfire_config_ref(struct pakfire_config* config);
+struct pakfire_config* pakfire_config_unref(struct pakfire_config* config);
 
 int pakfire_config_set(struct pakfire_config* config,
 	const char* section, const char* key, const char* value);
diff --git a/src/libpakfire/include/pakfire/pakfire.h b/src/libpakfire/include/pakfire/pakfire.h
index 29d2609be..3383911c7 100644
--- a/src/libpakfire/include/pakfire/pakfire.h
+++ b/src/libpakfire/include/pakfire/pakfire.h
@@ -89,6 +89,10 @@ int pakfire_read_makefile(PakfireParser* parser, Pakfire pakfire, const char* pa
 
 #include <solv/pool.h>
 
+#include <pakfire/config.h>
+
+struct pakfire_config* pakfire_get_config(Pakfire pakfire);
+
 #define pakfire_make_path(pakfire, dst, path) \
 	__pakfire_make_path(pakfire, dst, sizeof(dst) - 1, path)
 int __pakfire_make_path(Pakfire pakfire, char* dst, size_t length, const char* path);
diff --git a/src/libpakfire/pakfire.c b/src/libpakfire/pakfire.c
index 07a9d533d..08a30a4e2 100644
--- a/src/libpakfire/pakfire.c
+++ b/src/libpakfire/pakfire.c
@@ -392,7 +392,7 @@ static void pakfire_free(Pakfire pakfire) {
 	queue_free(&pakfire->installonly);
 
 	if (pakfire->config)
-		pakfire_config_free(pakfire->config);
+		pakfire_config_unref(pakfire->config);
 
 	free(pakfire);
 }
@@ -796,6 +796,13 @@ PAKFIRE_EXPORT Pakfire pakfire_unref(Pakfire pakfire) {
 	return NULL;
 }
 
+struct pakfire_config* pakfire_get_config(Pakfire pakfire) {
+	if (pakfire->config)
+		return pakfire_config_ref(pakfire->config);
+
+	return NULL;
+}
+
 PAKFIRE_EXPORT const char* pakfire_get_path(Pakfire pakfire) {
 	return pakfire->path;
 }