[libvirt] [libvirt-designer 2/2] Add gvir_designer_get_osinfo_db
Christophe Fergeau
cfergeau at redhat.com
Tue Mar 19 09:46:36 UTC 2013
virtxml was doing its own loading of the libosinfo database,
and gvir_designer_init() was loading it a second time.
By adding a gvir_designer_get_osinfo_db() method, virtxml can use
the same libosinfo database as the rest of libvirt-designer.
---
examples/virtxml.c | 51 ++++++++++++----------------
libvirt-designer/libvirt-designer-domain.c | 9 ++++-
libvirt-designer/libvirt-designer-internal.h | 3 --
libvirt-designer/libvirt-designer-main.c | 39 ++++++++++++++++-----
libvirt-designer/libvirt-designer-main.h | 3 ++
libvirt-designer/libvirt-designer.sym | 1 +
6 files changed, 64 insertions(+), 42 deletions(-)
diff --git a/examples/virtxml.c b/examples/virtxml.c
index a68843d..8137c5a 100644
--- a/examples/virtxml.c
+++ b/examples/virtxml.c
@@ -35,7 +35,6 @@
GList *disk_str_list = NULL;
GList *iface_str_list = NULL;
-OsinfoDb *db = NULL;
#define print_error(...) \
print_error_impl(__FUNCTION__, __LINE__, __VA_ARGS__)
@@ -59,28 +58,6 @@ print_error_impl(const char *funcname,
fprintf(stderr,"\n");
}
-static gboolean
-load_osinfo(void)
-{
- GError *err = NULL;
- gboolean ret = FALSE;
- OsinfoLoader *loader = NULL;
-
- loader = osinfo_loader_new();
- osinfo_loader_process_default_path(loader, &err);
- if (err) {
- print_error("Unable to load default libosinfo DB: %s", err->message);
- g_clear_error(&err);
- }
-
- db = osinfo_loader_get_db(loader);
- g_object_ref(db);
- ret = TRUE;
-
- g_object_unref(loader);
- return ret;
-}
-
static gint
entity_compare(gconstpointer a, gconstpointer b)
{
@@ -97,12 +74,14 @@ print_oses(const gchar *option_name,
gpointer data,
GError **error)
{
+ OsinfoDb *db;
OsinfoOsList *list = NULL;
GList *oses = NULL;
GList *os_iter;
int ret = EXIT_FAILURE;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
goto cleanup;
printf(" Operating System ID\n"
@@ -137,12 +116,14 @@ print_platforms(const gchar *option_name,
gpointer data,
GError **error)
{
+ OsinfoDb *db;
OsinfoPlatformList *list = NULL;
GList *platforms = NULL;
GList *platform_iter;
int ret = EXIT_FAILURE;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
goto cleanup;
printf(" Platform ID\n"
@@ -313,9 +294,11 @@ find_entity_by_short_id(OsinfoList *ent_list,
static OsinfoOs *
find_os(const gchar *os_str)
{
+ OsinfoDb *db;
OsinfoOs *ret = NULL;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
return NULL;
ret = osinfo_db_get_os(db, os_str);
@@ -326,11 +309,13 @@ find_os(const gchar *os_str)
static OsinfoOs *
find_os_by_short_id(const char *short_id)
{
+ OsinfoDb *db;
OsinfoOs *ret = NULL;
OsinfoOsList *oses = NULL;
OsinfoEntity *found = NULL;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
return NULL;
oses = osinfo_db_get_os_list(db);
@@ -353,10 +338,12 @@ cleanup:
static OsinfoOs *
guess_os_from_disk(GList *disk_list)
{
+ OsinfoDb *db;
OsinfoOs *ret = NULL;
GList *list_it = NULL;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
return NULL;
for (list_it = disk_list; list_it; list_it = list_it->next) {
@@ -387,9 +374,11 @@ guess_os_from_disk(GList *disk_list)
static OsinfoPlatform *
find_platform(const char *platform_str)
{
+ OsinfoDb *db;
OsinfoPlatform *ret = NULL;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
return NULL;
ret = osinfo_db_get_platform(db, platform_str);
@@ -400,11 +389,13 @@ find_platform(const char *platform_str)
static OsinfoPlatform *
find_platform_by_short_id(const char *short_id)
{
+ OsinfoDb *db;
OsinfoPlatform *ret = NULL;
OsinfoPlatformList *platforms = NULL;
OsinfoEntity *found = NULL;
- if (!db && !load_osinfo())
+ db = gvir_designer_get_osinfo_db();
+ if (!db)
goto cleanup;
platforms = osinfo_db_get_platform_list(db);
diff --git a/libvirt-designer/libvirt-designer-domain.c b/libvirt-designer/libvirt-designer-domain.c
index 3e31bd1..862daba 100644
--- a/libvirt-designer/libvirt-designer-domain.c
+++ b/libvirt-designer/libvirt-designer-domain.c
@@ -721,7 +721,14 @@ gvir_designer_domain_get_preferred_device(GVirDesignerDomain *design,
OsinfoDeviceLink *dev_link = NULL;
if (!deployment) {
- priv->deployment = deployment = osinfo_db_find_deployment(osinfo_db,
+ OsinfoDb *db;
+ db = gvir_designer_get_osinfo_db();
+ if (!db) {
+ g_set_error(error, GVIR_DESIGNER_DOMAIN_ERROR, 0,
+ "Unable to find any deployment in libosinfo database");
+ goto cleanup;
+ }
+ priv->deployment = deployment = osinfo_db_find_deployment(db,
priv->os,
priv->platform);
if (!deployment) {
diff --git a/libvirt-designer/libvirt-designer-internal.h b/libvirt-designer/libvirt-designer-internal.h
index bbef922..e95edfc 100644
--- a/libvirt-designer/libvirt-designer-internal.h
+++ b/libvirt-designer/libvirt-designer-internal.h
@@ -24,7 +24,4 @@
#ifndef __LIBVIRT_DESIGNER_INTERNAL_H__
#define __LIBVIRT_DESIGNER_INTERNAL_H__
-extern OsinfoLoader *osinfo_loader;
-extern OsinfoDb *osinfo_db;
-
#endif /* __LIBVIRT_DESIGNER_INTERNAL_H__ */
diff --git a/libvirt-designer/libvirt-designer-main.c b/libvirt-designer/libvirt-designer-main.c
index 5c70b57..7d730bf 100644
--- a/libvirt-designer/libvirt-designer-main.c
+++ b/libvirt-designer/libvirt-designer-main.c
@@ -30,7 +30,6 @@
#include <libvirt-designer/libvirt-designer.h>
#include <libvirt-gconfig/libvirt-gconfig.h>
-OsinfoLoader *osinfo_loader = NULL;
OsinfoDb *osinfo_db = NULL;
/**
@@ -58,6 +57,20 @@ static void gvir_log_handler(const gchar *log_domain G_GNUC_UNUSED,
}
+static void gvir_designer_load_osinfo(void)
+{
+ /* Init libosinfo and load databases from default paths */
+ /* XXX maybe we want to let users tell a different path via
+ * env variable or argv */
+ OsinfoLoader *osinfo_loader = NULL;
+
+ osinfo_loader = osinfo_loader_new();
+ osinfo_loader_process_default_path(osinfo_loader, NULL);
+
+ osinfo_db = g_object_ref(osinfo_loader_get_db(osinfo_loader));
+ g_object_unref(G_OBJECT(osinfo_loader));
+}
+
/**
* gvir_designer_init_check:
* @argc: (inout): pointer to application's argc
@@ -85,13 +98,23 @@ gboolean gvir_designer_init_check(int *argc,
gvir_log_handler, NULL);
#endif
- /* Init libosinfo and load databases from default paths */
- /* XXX maybe we want to let users tell a different path via
- * env variable or argv */
- osinfo_loader = osinfo_loader_new();
- osinfo_loader_process_default_path(osinfo_loader, NULL);
-
- osinfo_db = osinfo_loader_get_db(osinfo_loader);
+ gvir_designer_load_osinfo();
return TRUE;
}
+
+/**
+ * gvir_designer_get_osinfo_db:
+ *
+ * Retrieves the global #OsinfoDb database
+ *
+ * Returns: (transfer none): an #OsinfoDb database owned by
+ * libvirt-designer which must not be unreferenced
+ */
+OsinfoDb *gvir_designer_get_osinfo_db(void)
+{
+ if (osinfo_db == NULL)
+ gvir_designer_load_osinfo();
+
+ return osinfo_db;
+}
diff --git a/libvirt-designer/libvirt-designer-main.h b/libvirt-designer/libvirt-designer-main.h
index 2500ef7..9b874a4 100644
--- a/libvirt-designer/libvirt-designer-main.h
+++ b/libvirt-designer/libvirt-designer-main.h
@@ -24,6 +24,8 @@
#error "Only <libvirt-gdesigner/libvirt-gdesigner.h> can be included directly."
#endif
+#include <osinfo/osinfo.h>
+
#ifndef __LIBVIRT_DESIGNER_MAIN_H__
#define __LIBVIRT_DESIGNER_MAIN_H__
@@ -34,6 +36,7 @@ void gvir_designer_init(int *argc,
gboolean gvir_designer_init_check(int *argc,
char ***argv,
GError **err);
+OsinfoDb *gvir_designer_get_osinfo_db(void);
G_END_DECLS
diff --git a/libvirt-designer/libvirt-designer.sym b/libvirt-designer/libvirt-designer.sym
index 79db09f..6f63abc 100644
--- a/libvirt-designer/libvirt-designer.sym
+++ b/libvirt-designer/libvirt-designer.sym
@@ -2,6 +2,7 @@ LIBVIRT_DESIGNER_0.0.1 {
global:
gvir_designer_init;
gvir_designer_init_check;
+ gvir_designer_get_osinfo_db;
gvir_designer_domain_new;
gvir_designer_domain_get_type;
--
1.8.1.4
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