With ports being able to be non-local if the PMC agent is using a
non-UDS transport, it is useful to have a unique way of identifying
them. Choose the clock ID as being that unique identifier and export a
function that retrieves the identity of the clock we're connected to.
Signed-off-by: Vladimir Oltean <olte...@gmail.com>
---
pmc_agent.c | 10 ++++++++++
pmc_agent.h | 12 ++++++++++++
2 files changed, 22 insertions(+)
diff --git a/pmc_agent.c b/pmc_agent.c
index b617d12f5287..e1c513fe10da 100644
--- a/pmc_agent.c
+++ b/pmc_agent.c
@@ -293,6 +293,16 @@ int pmc_agent_get_number_ports(struct pmc_agent *node)
return node->dds.numberPorts;
}
+int pmc_agent_get_clock_identity(struct pmc_agent *node,
+ struct ClockIdentity *cid)
+{
+ if (!node->dds_valid)
+ return -1;
+
+ *cid = node->dds.clockIdentity;
+ return 0;
+}
+
int pmc_agent_query_dds(struct pmc_agent *node, int timeout)
{
struct ptp_message *msg;
diff --git a/pmc_agent.h b/pmc_agent.h
index feffac6f1b64..9dc85e300f9e 100644
--- a/pmc_agent.h
+++ b/pmc_agent.h
@@ -72,6 +72,18 @@ int pmc_agent_get_leap(struct pmc_agent *agent);
*/
int pmc_agent_get_number_ports(struct pmc_agent *agent);
+/**
+ * Gets the clock identity from the default data set. Users
+ * should first call pmc_agent_query_dds() before invoking this
+ * function.
+ *
+ * @param agent Pointer to a PMC instance obtained via @ref
pmc_agent_create().
+ * @param cid Pointer to the return storage for the clock identity.
+ * @return 0 on success, or -1 if unknown.
+ */
+int pmc_agent_get_clock_identity(struct pmc_agent *node,
+ struct ClockIdentity *cid);
+
/**
* Gets the TAI-UTC offset.
* @param agent Pointer to a PMC instance obtained via @ref
pmc_agent_create().
--
2.25.1
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