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authorLennart Poettering <lennart@poettering.net>2013-11-19 21:12:59 +0100
committerLennart Poettering <lennart@poettering.net>2013-11-20 20:52:36 +0100
commit718db96199eb307751264e4163555662c9a389fa (patch)
tree9ec8467596ba1acba76bb6273c7797baf68c1a00 /src/core/unit.h
parent3febea3a0b0a968ea281e7959c1654cbaf95c9bf (diff)
core: convert PID 1 to libsystemd-bus
This patch converts PID 1 to libsystemd-bus and thus drops the dependency on libdbus. The only remaining code using libdbus is a test case that validates our bus marshalling against libdbus' marshalling, and this dependency can be turned off. This patch also adds a couple of things to libsystem-bus, that are necessary to make the port work: - Synthesizing of "Disconnected" messages when bus connections are severed. - Support for attaching multiple vtables for the same interface on the same path. This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus calls which used an inappropriate signature. As a side effect we will now generate PropertiesChanged messages which carry property contents, rather than just invalidation information.
Diffstat (limited to 'src/core/unit.h')
-rw-r--r--src/core/unit.h41
1 files changed, 18 insertions, 23 deletions
diff --git a/src/core/unit.h b/src/core/unit.h
index 1a558423f7..c58202bf0f 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -32,6 +32,7 @@ typedef enum UnitDependency UnitDependency;
typedef struct UnitRef UnitRef;
typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
+#include "sd-event.h"
#include "set.h"
#include "util.h"
#include "list.h"
@@ -295,6 +296,10 @@ struct UnitVTable {
* CGroupContext is found, if the unit type has that */
size_t cgroup_context_offset;
+ /* If greater than 0, the offset into the object where
+ * KillContext is found, if the unit type has that */
+ size_t kill_context_offset;
+
/* The name of the configuration file section with the private settings of this unit*/
const char *private_section;
@@ -327,7 +332,7 @@ struct UnitVTable {
int (*stop)(Unit *u);
int (*reload)(Unit *u);
- int (*kill)(Unit *u, KillWho w, int signo, DBusError *error);
+ int (*kill)(Unit *u, KillWho w, int signo, sd_bus_error *error);
bool (*can_reload)(Unit *u);
@@ -359,9 +364,8 @@ struct UnitVTable {
/* Return true when this unit is suitable for snapshotting */
bool (*check_snapshot)(Unit *u);
- void (*fd_event)(Unit *u, int fd, uint32_t events, Watch *w);
+ /* Invoked on every child that died */
void (*sigchld_event)(Unit *u, pid_t pid, int code, int status);
- void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w);
/* Reset failed state if we are in failed state */
void (*reset_failed)(Unit *u);
@@ -377,14 +381,8 @@ struct UnitVTable {
* goes away. */
void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner);
- /* Called whenever a bus PID lookup finishes */
- void (*bus_query_pid_done)(Unit *u, const char *name, pid_t pid);
-
- /* Called for each message received on the bus */
- DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message);
-
/* Called for each property that is being set */
- int (*bus_set_property)(Unit *u, const char *name, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error);
+ int (*bus_set_property)(Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error);
/* Called after at least one property got changed to apply the necessary change */
int (*bus_commit_properties)(Unit *u);
@@ -412,14 +410,16 @@ struct UnitVTable {
/* Type specific cleanups. */
void (*shutdown)(Manager *m);
- /* When sending out PropertiesChanged signal, which properties
- * shall be invalidated? This is a NUL separated list of
- * strings, to minimize relocations a little. */
- const char *bus_invalidating_properties;
-
/* The interface name */
const char *bus_interface;
+ /* The bus vtable */
+ const sd_bus_vtable *bus_vtable;
+
+ /* strv list of changing properties */
+ const char * const * const bus_changing_properties;
+
+ /* The strings to print in status messages */
UnitStatusMessageFormats status_message_formats;
/* Can units of this type have multiple names? */
@@ -521,20 +521,14 @@ int unit_start(Unit *u);
int unit_stop(Unit *u);
int unit_reload(Unit *u);
-int unit_kill(Unit *u, KillWho w, int signo, DBusError *error);
-int unit_kill_common(Unit *u, KillWho who, int signo, pid_t main_pid, pid_t control_pid, DBusError *error);
+int unit_kill(Unit *u, KillWho w, int signo, sd_bus_error *error);
+int unit_kill_common(Unit *u, KillWho who, int signo, pid_t main_pid, pid_t control_pid, sd_bus_error *error);
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success);
-int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w);
-void unit_unwatch_fd(Unit *u, Watch *w);
-
int unit_watch_pid(Unit *u, pid_t pid);
void unit_unwatch_pid(Unit *u, pid_t pid);
-int unit_watch_timer(Unit *u, clockid_t, bool relative, usec_t usec, Watch *w);
-void unit_unwatch_timer(Unit *u, Watch *w);
-
int unit_watch_bus_name(Unit *u, const char *name);
void unit_unwatch_bus_name(Unit *u, const char *name);
@@ -590,6 +584,7 @@ void unit_ref_unset(UnitRef *ref);
int unit_exec_context_defaults(Unit *u, ExecContext *c);
ExecContext *unit_get_exec_context(Unit *u) _pure_;
+KillContext *unit_get_kill_context(Unit *u) _pure_;
CGroupContext *unit_get_cgroup_context(Unit *u) _pure_;
int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);