From 71645acac27da55d510f2e4d61cc61b4e5b93035 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 19 Jan 2013 01:01:41 +0100 Subject: unit: optionally allow making cgroup attribute changes persistent --- src/shared/dbus-common.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) (limited to 'src/shared/dbus-common.c') diff --git a/src/shared/dbus-common.c b/src/shared/dbus-common.c index e9a78c299e..50891a8ade 100644 --- a/src/shared/dbus-common.c +++ b/src/shared/dbus-common.c @@ -927,6 +927,67 @@ int bus_parse_strv_iter(DBusMessageIter *iter, char ***_l) { return 0; } +int bus_parse_strv_pairs_iter(DBusMessageIter *iter, char ***_l) { + DBusMessageIter sub, sub2; + unsigned n = 0, i = 0; + char **l; + + assert(iter); + assert(_l); + + if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(iter) != DBUS_TYPE_STRUCT) + return -EINVAL; + + dbus_message_iter_recurse(iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + n++; + dbus_message_iter_next(&sub); + } + + l = new(char*, n*2+1); + if (!l) + return -ENOMEM; + + dbus_message_iter_recurse(iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *a, *b; + + assert_se(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT); + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &a, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &b, false) < 0) + return -EINVAL; + + l[i] = strdup(a); + if (!l[i]) { + strv_free(l); + return -ENOMEM; + } + + l[++i] = strdup(b); + if (!l[i]) { + strv_free(l); + return -ENOMEM; + } + + i++; + dbus_message_iter_next(&sub); + } + + assert(i == n*2); + l[i] = NULL; + + if (_l) + *_l = l; + + return 0; +} + int bus_append_strv_iter(DBusMessageIter *iter, char **l) { DBusMessageIter sub; -- cgit v1.2.3-54-g00ecf