Merge pull request #1063 from poettering/dbus-interface-from-type

cgls/cgtop: a variety of modernizations

src/basic/time-util.c

@@ -37,6 +37,14 @@ usec_t now(clockid_t clock_id) {
         return timespec_load(&ts);
 }
 
+nsec_t now_nsec(clockid_t clock_id) {
+        struct timespec ts;
+
+        assert_se(clock_gettime(clock_id, &ts) == 0);
+
+        return timespec_load_nsec(&ts);
+}
+
 dual_timestamp* dual_timestamp_get(dual_timestamp *ts) {
         assert(ts);
 
@@ -130,6 +138,18 @@ usec_t timespec_load(const struct timespec *ts) {
                 (usec_t) ts->tv_nsec / NSEC_PER_USEC;
 }
 
+nsec_t timespec_load_nsec(const struct timespec *ts) {
+        assert(ts);
+
+        if (ts->tv_sec == (time_t) -1 &&
+            ts->tv_nsec == (long) -1)
+                return NSEC_INFINITY;
+
+        return
+                (nsec_t) ts->tv_sec * NSEC_PER_SEC +
+                (nsec_t) ts->tv_nsec;
+}
+
 struct timespec *timespec_store(struct timespec *ts, usec_t u)  {
         assert(ts);
 

src/basic/time-util.h

@@ -70,6 +70,7 @@ typedef struct dual_timestamp {
 #define DUAL_TIMESTAMP_NULL ((struct dual_timestamp) { 0ULL, 0ULL })
 
 usec_t now(clockid_t clock);
+nsec_t now_nsec(clockid_t clock);
 
 dual_timestamp* dual_timestamp_get(dual_timestamp *ts);
 dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u);
@@ -87,6 +88,8 @@ struct timespec *timespec_store(struct timespec *ts, usec_t u);
 usec_t timeval_load(const struct timeval *tv) _pure_;
 struct timeval *timeval_store(struct timeval *tv, usec_t u);
 
+nsec_t timespec_load_nsec(const struct timespec *ts) _pure_;
+
 char *format_timestamp(char *buf, size_t l, usec_t t);
 char *format_timestamp_utc(char *buf, size_t l, usec_t t);
 char *format_timestamp_us(char *buf, size_t l, usec_t t);

src/basic/unit-name.c

@@ -586,6 +586,42 @@ int unit_name_from_dbus_path(const char *path, char **name) {
         return 0;
 }
 
+const char* unit_dbus_interface_from_type(UnitType t) {
+
+        static const char *const table[_UNIT_TYPE_MAX] = {
+                [UNIT_SERVICE] = "org.freedesktop.systemd1.Service",
+                [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket",
+                [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName",
+                [UNIT_TARGET] = "org.freedesktop.systemd1.Target",
+                [UNIT_SNAPSHOT] = "org.freedesktop.systemd1.Snapshot",
+                [UNIT_DEVICE] = "org.freedesktop.systemd1.Device",
+                [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount",
+                [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount",
+                [UNIT_SWAP] = "org.freedesktop.systemd1.Swap",
+                [UNIT_TIMER] = "org.freedesktop.systemd1.Timer",
+                [UNIT_PATH] = "org.freedesktop.systemd1.Path",
+                [UNIT_SLICE] = "org.freedesktop.systemd1.Slice",
+                [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope",
+        };
+
+        if (t < 0)
+                return NULL;
+        if (t >= _UNIT_TYPE_MAX)
+                return NULL;
+
+        return table[t];
+}
+
+const char *unit_dbus_interface_from_name(const char *name) {
+        UnitType t;
+
+        t = unit_name_to_type(name);
+        if (t < 0)
+                return NULL;
+
+        return unit_dbus_interface_from_type(t);
+}
+
 static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) {
         const char *valid_chars;
 
@@ -787,7 +823,7 @@ static const char* const unit_type_table[_UNIT_TYPE_MAX] = {
         [UNIT_TIMER] = "timer",
         [UNIT_PATH] = "path",
         [UNIT_SLICE] = "slice",
-        [UNIT_SCOPE] = "scope"
+        [UNIT_SCOPE] = "scope",
 };
 
 DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType);

src/basic/unit-name.h

@@ -152,6 +152,9 @@ int unit_name_to_path(const char *name, char **ret);
 char *unit_dbus_path_from_name(const char *name);
 int unit_name_from_dbus_path(const char *path, char **name);
 
+const char* unit_dbus_interface_from_type(UnitType t);
+const char *unit_dbus_interface_from_name(const char *name);
+
 typedef enum UnitNameMangle {
         UNIT_NAME_NOGLOB,
         UNIT_NAME_GLOB,