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authorLennart Poettering <lennart@poettering.net>2014-04-25 13:27:25 +0200
committerLennart Poettering <lennart@poettering.net>2014-04-25 13:27:25 +0200
commitb2f8b02ec27dfec9cbd23573f47aba494f2e9b5f (patch)
tree56ca4d6015fa5bd06f473d7836ef3fc797f35f64 /src/core/dbus-cgroup.c
parent3051f1871ea2d9a36b423207221e461cc27e577c (diff)
core: expose CFS CPU time quota as high-level unit properties
Diffstat (limited to 'src/core/dbus-cgroup.c')
-rw-r--r--src/core/dbus-cgroup.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
index 5b1c4e37c8..e9bdabf931 100644
--- a/src/core/dbus-cgroup.c
+++ b/src/core/dbus-cgroup.c
@@ -133,10 +133,49 @@ static int property_get_device_allow(
return sd_bus_message_close_container(reply);
}
+static int property_get_cpu_quota_usec(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ CGroupContext *c = userdata;
+
+ assert(bus);
+ assert(reply);
+ assert(c);
+
+ return sd_bus_message_append(reply, "t", cgroup_context_get_cpu_quota_usec(c));
+}
+
+static int property_get_cpu_quota_per_sec_usec(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ CGroupContext *c = userdata;
+
+ assert(bus);
+ assert(reply);
+ assert(c);
+
+ return sd_bus_message_append(reply, "t", cgroup_context_get_cpu_quota_per_sec_usec(c));
+}
+
const sd_bus_vtable bus_cgroup_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("CPUAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, cpu_accounting), 0),
SD_BUS_PROPERTY("CPUShares", "t", bus_property_get_ulong, offsetof(CGroupContext, cpu_shares), 0),
+ SD_BUS_PROPERTY("CPUQuotaPerSecUSec", "t", property_get_cpu_quota_per_sec_usec, 0, 0),
+ SD_BUS_PROPERTY("CPUQuotaUSec", "t", property_get_cpu_quota_usec, 0, 0),
+ SD_BUS_PROPERTY("CPUQuotaPeriodUSec", "t", bus_property_get_usec, offsetof(CGroupContext, cpu_quota_period_usec), 0),
SD_BUS_PROPERTY("BlockIOAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, blockio_accounting), 0),
SD_BUS_PROPERTY("BlockIOWeight", "t", bus_property_get_ulong, offsetof(CGroupContext, blockio_weight), 0),
SD_BUS_PROPERTY("BlockIODeviceWeight", "a(st)", property_get_blockio_device_weight, 0, 0),
@@ -199,6 +238,63 @@ int bus_cgroup_set_property(
return 1;
+ } else if (streq(name, "CPUQuotaPerSecUSec")) {
+ uint64_t u64;
+
+ r = sd_bus_message_read(message, "t", &u64);
+ if (r < 0)
+ return r;
+
+ if (u64 <= 0)
+ return sd_bus_error_set_errnof(error, EINVAL, "CPUQuotaPerSecUSec value out of range");
+
+ if (mode != UNIT_CHECK) {
+ c->cpu_quota_per_sec_usec = u64;
+ c->cpu_quota_usec = (uint64_t) -1;
+ u->cgroup_realized_mask &= ~CGROUP_CPU;
+ unit_write_drop_in_private_format(u, mode, "CPUQuota", "CPUQuota=%0.f%%", (double) (c->cpu_quota_per_sec_usec / 10000));
+ }
+
+ return 1;
+
+ } else if (streq(name, "CPUQuotaUSec")) {
+ uint64_t u64;
+
+ r = sd_bus_message_read(message, "t", &u64);
+ if (r < 0)
+ return r;
+
+ if (u64 <= 0)
+ return sd_bus_error_set_errnof(error, EINVAL, "CPUQuotaUSec value out of range");
+
+ if (mode != UNIT_CHECK) {
+ c->cpu_quota_usec = u64;
+ c->cpu_quota_per_sec_usec = (uint64_t) -1;
+ u->cgroup_realized_mask &= ~CGROUP_CPU;
+ unit_write_drop_in_private_format(u, mode, "CPUQuota", "CPUQuota=%" PRIu64 "us", u64);
+ }
+
+ return 1;
+
+ } else if (streq(name, "CPUQuotaPeriodUSec")) {
+
+ uint64_t u64;
+
+ r = sd_bus_message_read(message, "t", &u64);
+ if (r < 0)
+ return r;
+
+ if (u64 <= 0 || u64 >= (usec_t) -1)
+ return sd_bus_error_set_errnof(error, EINVAL, "CPUQuotaPeriodUSec value out of range");
+
+ if (mode != UNIT_CHECK) {
+ c->cpu_quota_period_usec = u64;
+ u->cgroup_realized_mask &= ~CGROUP_CPU;
+ unit_write_drop_in_private_format(u, mode, name, "CPUQuotaPeriodSec=%" PRIu64 "us", c->cpu_quota_period_usec);
+ }
+
+ return 1;
+
} else if (streq(name, "BlockIOAccounting")) {
int b;