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authorLennart Poettering <lennart@poettering.net>2014-12-28 02:44:37 +0100
committerLennart Poettering <lennart@poettering.net>2014-12-28 02:44:37 +0100
commit1ddb263d21099ae42195c2bc382bdf72a7f24f82 (patch)
tree5dacc98baedd786030704379bb7e65e77ff92391
parent3b9c7d955da357a45c0bcd03397160153539bc57 (diff)
machined: don't look for images on each property get, but cache the image object inbetween
-rw-r--r--src/machine/image-dbus.c416
-rw-r--r--src/machine/image-dbus.h5
-rw-r--r--src/machine/machined-dbus.c42
-rw-r--r--src/machine/machined.c9
-rw-r--r--src/machine/machined.h3
5 files changed, 112 insertions, 363 deletions
diff --git a/src/machine/image-dbus.c b/src/machine/image-dbus.c
index cae7b227dd..5ac689c4bd 100644
--- a/src/machine/image-dbus.c
+++ b/src/machine/image-dbus.c
@@ -22,317 +22,24 @@
#include "bus-label.h"
#include "bus-common-errors.h"
#include "strv.h"
+#include "bus-util.h"
#include "machine-image.h"
#include "image-dbus.h"
-static int image_find_by_bus_path(const char *path, Image **ret) {
- _cleanup_free_ char *e = NULL;
- const char *p;
-
- assert(path);
-
- p = startswith(path, "/org/freedesktop/machine1/image/");
- if (!p)
- return 0;
-
- e = bus_label_unescape(p);
- if (!e)
- return -ENOMEM;
-
- return image_find(e, ret);
-}
-
-static int image_find_by_bus_path_with_error(const char *path, Image **ret, sd_bus_error *error) {
- int r;
-
- assert(path);
-
- r = image_find_by_bus_path(path, ret);
- if (r == 0)
- return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "Image doesn't exist.");
-
- return r;
-}
-
-static int property_get_name(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "s", image->name);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_path(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "s", image->path);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_type(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "s", image_type_to_string(image->type));
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_read_only(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "b", image->read_only);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_crtime(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "t", image->crtime);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_mtime(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, image_type, ImageType);
- r = sd_bus_message_append(reply, "t", image->mtime);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_size(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "t", image->size);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-
-static int property_get_limit(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "t", image->limit);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_size_exclusive(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "t", image->size_exclusive);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int property_get_limit_exclusive(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- _cleanup_(image_unrefp) Image *image = NULL;
- int r;
-
- assert(bus);
- assert(reply);
-
- r = image_find_by_bus_path_with_error(path, &image, error);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(reply, "t", image->limit_exclusive);
- if (r < 0)
- return r;
-
- return 1;
-}
-
-static int method_remove(
+int bus_image_method_remove(
sd_bus *bus,
sd_bus_message *message,
void *userdata,
sd_bus_error *error) {
- _cleanup_(image_unrefp) Image *image = NULL;
+ Image *image = userdata;
int r;
assert(bus);
assert(message);
-
- r = image_find_by_bus_path_with_error(sd_bus_message_get_path(message), &image, error);
- if (r < 0)
- return r;
+ assert(image);
r = image_remove(image);
if (r < 0)
@@ -341,22 +48,19 @@ static int method_remove(
return sd_bus_reply_method_return(message, NULL);
}
-static int method_rename(
+int bus_image_method_rename(
sd_bus *bus,
sd_bus_message *message,
void *userdata,
sd_bus_error *error) {
- _cleanup_(image_unrefp) Image *image = NULL;
+ Image *image = userdata;
const char *new_name;
int r;
assert(bus);
assert(message);
-
- r = image_find_by_bus_path_with_error(sd_bus_message_get_path(message), &image, error);
- if (r < 0)
- return r;
+ assert(image);
r = sd_bus_message_read(message, "s", &new_name);
if (r < 0)
@@ -372,22 +76,19 @@ static int method_rename(
return sd_bus_reply_method_return(message, NULL);
}
-static int method_clone(
+int bus_image_method_clone(
sd_bus *bus,
sd_bus_message *message,
void *userdata,
sd_bus_error *error) {
- _cleanup_(image_unrefp) Image *image = NULL;
+ Image *image = userdata;
const char *new_name;
int r, read_only;
assert(bus);
assert(message);
-
- r = image_find_by_bus_path_with_error(sd_bus_message_get_path(message), &image, error);
- if (r < 0)
- return r;
+ assert(image);
r = sd_bus_message_read(message, "sb", &new_name, &read_only);
if (r < 0)
@@ -403,22 +104,18 @@ static int method_clone(
return sd_bus_reply_method_return(message, NULL);
}
-static int method_mark_read_only(
+int bus_image_method_mark_read_only(
sd_bus *bus,
sd_bus_message *message,
void *userdata,
sd_bus_error *error) {
- _cleanup_(image_unrefp) Image *image = NULL;
+ Image *image = userdata;
int r, read_only;
assert(bus);
assert(message);
- r = image_find_by_bus_path_with_error(sd_bus_message_get_path(message), &image, error);
- if (r < 0)
- return r;
-
r = sd_bus_message_read(message, "b", &read_only);
if (r < 0)
return r;
@@ -432,24 +129,41 @@ static int method_mark_read_only(
const sd_bus_vtable image_vtable[] = {
SD_BUS_VTABLE_START(0),
- SD_BUS_PROPERTY("Name", "s", property_get_name, 0, 0),
- SD_BUS_PROPERTY("Path", "s", property_get_path, 0, 0),
- SD_BUS_PROPERTY("Type", "s", property_get_type, 0, 0),
- SD_BUS_PROPERTY("ReadOnly", "b", property_get_read_only, 0, 0),
- SD_BUS_PROPERTY("CreationTimestamp", "t", property_get_crtime, 0, 0),
- SD_BUS_PROPERTY("ModificationTimestamp", "t", property_get_mtime, 0, 0),
- SD_BUS_PROPERTY("Size", "t", property_get_size, 0, 0),
- SD_BUS_PROPERTY("Limit", "t", property_get_limit, 0, 0),
- SD_BUS_PROPERTY("SizeExclusive", "t", property_get_size_exclusive, 0, 0),
- SD_BUS_PROPERTY("LimitExclusive", "t", property_get_limit_exclusive, 0, 0),
- SD_BUS_METHOD("Remove", NULL, NULL, method_remove, 0),
- SD_BUS_METHOD("Rename", "s", NULL, method_rename, 0),
- SD_BUS_METHOD("Clone", "sb", NULL, method_clone, 0),
- SD_BUS_METHOD("MarkeReadOnly", "b", NULL, method_mark_read_only, 0),
+ SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Image, name), 0),
+ SD_BUS_PROPERTY("Path", "s", NULL, offsetof(Image, path), 0),
+ SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Image, type), 0),
+ SD_BUS_PROPERTY("ReadOnly", "b", bus_property_get_bool, offsetof(Image, read_only), 0),
+ SD_BUS_PROPERTY("CreationTimestamp", "t", NULL, offsetof(Image, crtime), 0),
+ SD_BUS_PROPERTY("ModificationTimestamp", "t", NULL, offsetof(Image, mtime), 0),
+ SD_BUS_PROPERTY("Size", "t", NULL, offsetof(Image, size), 0),
+ SD_BUS_PROPERTY("Limit", "t", NULL, offsetof(Image, limit), 0),
+ SD_BUS_PROPERTY("SizeExclusive", "t", NULL, offsetof(Image, size_exclusive), 0),
+ SD_BUS_PROPERTY("LimitExclusive", "t", NULL, offsetof(Image, limit_exclusive), 0),
+ SD_BUS_METHOD("Remove", NULL, NULL, bus_image_method_remove, 0),
+ SD_BUS_METHOD("Rename", "s", NULL, bus_image_method_rename, 0),
+ SD_BUS_METHOD("Clone", "sb", NULL, bus_image_method_clone, 0),
+ SD_BUS_METHOD("MarkeReadOnly", "b", NULL, bus_image_method_mark_read_only, 0),
SD_BUS_VTABLE_END
};
+static int image_flush_cache(sd_event_source *s, void *userdata) {
+ Manager *m = userdata;
+ Image *i;
+
+ assert(s);
+ assert(m);
+
+ while ((i = hashmap_steal_first(m->image_cache)))
+ image_unref(i);
+
+ return 0;
+}
+
int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
+ _cleanup_free_ char *e = NULL;
+ Manager *m = userdata;
+ Image *image = NULL;
+ const char *p;
int r;
assert(bus);
@@ -457,11 +171,49 @@ int image_object_find(sd_bus *bus, const char *path, const char *interface, void
assert(interface);
assert(found);
- r = image_find_by_bus_path(path, NULL);
+ p = startswith(path, "/org/freedesktop/machine1/image/");
+ if (!p)
+ return 0;
+
+ e = bus_label_unescape(p);
+ if (!e)
+ return -ENOMEM;
+
+ image = hashmap_get(m->image_cache, e);
+ if (image) {
+ *found = image;
+ return 1;
+ }
+
+ r = hashmap_ensure_allocated(&m->image_cache, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ if (!m->image_cache_defer_event) {
+ r = sd_event_add_defer(m->event, &m->image_cache_defer_event, image_flush_cache, m);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_priority(m->image_cache_defer_event, SD_EVENT_PRIORITY_IDLE);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_event_source_set_enabled(m->image_cache_defer_event, SD_EVENT_ONESHOT);
+ if (r < 0)
+ return r;
+
+ r = image_find(e, &image);
if (r <= 0)
return r;
- *found = NULL;
+ r = hashmap_put(m->image_cache, image->name, image);
+ if (r < 0) {
+ image_unref(image);
+ return r;
+ }
+
+ *found = image;
return 1;
}
diff --git a/src/machine/image-dbus.h b/src/machine/image-dbus.h
index d176ff728b..1b4364cbea 100644
--- a/src/machine/image-dbus.h
+++ b/src/machine/image-dbus.h
@@ -29,3 +29,8 @@ char *image_bus_path(const char *name);
int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
int image_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
+
+int bus_image_method_remove(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
+int bus_image_method_rename(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
+int bus_image_method_clone(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
+int bus_image_method_mark_read_only(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index 8bb0146f50..94dd128ec1 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -582,29 +582,23 @@ static int method_remove_image(sd_bus *bus, sd_bus_message *message, void *userd
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name);
- r = image_remove(i);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
+ return bus_image_method_remove(bus, message, i, error);
}
static int method_rename_image(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(image_unrefp) Image* i = NULL;
- const char *old_name, *new_name;
+ const char *old_name;
int r;
assert(bus);
assert(message);
- r = sd_bus_message_read(message, "ss", &old_name, &new_name);
+ r = sd_bus_message_read(message, "s", &old_name);
if (r < 0)
return r;
if (!image_name_is_valid(old_name))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name);
- if (!image_name_is_valid(new_name))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
r = image_find(old_name, &i);
if (r < 0)
@@ -612,27 +606,21 @@ static int method_rename_image(sd_bus *bus, sd_bus_message *message, void *userd
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name);
- r = image_rename(i, new_name);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
+ return bus_image_method_rename(bus, message, i, error);
}
static int method_clone_image(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(image_unrefp) Image *i = NULL;
- const char *old_name, *new_name;
- int read_only, r;
+ const char *old_name;
+ int r;
assert(bus);
- r = sd_bus_message_read(message, "ssb", &old_name, &new_name, &read_only);
+ r = sd_bus_message_read(message, "s", &old_name);
if (r < 0)
return r;
if (!image_name_is_valid(old_name))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name);
- if (!image_name_is_valid(new_name))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
r = image_find(old_name, &i);
if (r < 0)
@@ -640,20 +628,16 @@ static int method_clone_image(sd_bus *bus, sd_bus_message *message, void *userda
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name);
- r = image_clone(i, new_name, read_only);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
+ return bus_image_method_clone(bus, message, i, error);
}
static int method_mark_image_read_only(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(image_unrefp) Image *i = NULL;
const char *name;
- int read_only, r;
+ int r;
assert(bus);
- r = sd_bus_message_read(message, "sb", &name, &read_only);
+ r = sd_bus_message_read(message, "s", &name);
if (r < 0)
return r;
@@ -666,11 +650,7 @@ static int method_mark_image_read_only(sd_bus *bus, sd_bus_message *message, voi
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name);
- r = image_read_only(i, read_only);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
+ return bus_image_method_mark_read_only(bus, message, i, error);
}
const sd_bus_vtable manager_vtable[] = {
diff --git a/src/machine/machined.c b/src/machine/machined.c
index c5c20abf0c..6877c2b313 100644
--- a/src/machine/machined.c
+++ b/src/machine/machined.c
@@ -34,6 +34,7 @@
#include "bus-util.h"
#include "bus-error.h"
#include "label.h"
+#include "machine-image.h"
#include "machined.h"
Manager *manager_new(void) {
@@ -66,6 +67,7 @@ Manager *manager_new(void) {
void manager_free(Manager *m) {
Machine *machine;
+ Image *i;
assert(m);
@@ -76,6 +78,13 @@ void manager_free(Manager *m) {
hashmap_free(m->machine_units);
hashmap_free(m->machine_leaders);
+ while ((i = hashmap_steal_first(m->image_cache)))
+ image_unref(i);
+
+ hashmap_free(m->image_cache);
+
+ sd_event_source_unref(m->image_cache_defer_event);
+
bus_verify_polkit_async_registry_free(m->polkit_registry);
sd_bus_unref(m->bus);
diff --git a/src/machine/machined.h b/src/machine/machined.h
index 695ba297cc..df0cb82f8d 100644
--- a/src/machine/machined.h
+++ b/src/machine/machined.h
@@ -46,6 +46,9 @@ struct Manager {
Hashmap *polkit_registry;
+ Hashmap *image_cache;
+ sd_event_source *image_cache_defer_event;
+
LIST_HEAD(Machine, machine_gc_queue);
};