[libvirt] [PATCH 2/6] domMemStats: Add public symbol to libvirt API
Add a new function 'virDomainMemStats' to the libvirt API. Export it via
libvirt_public.syms
Signed-off-by: Adam Litke <agl(a)us.ibm.com>
To: libvirt list <libvir-list(a)redhat.com>
---
src/libvirt.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++
src/libvirt_public.syms | 1 +
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/src/libvirt.c b/src/libvirt.c
index b14942d..d632bd7 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -4045,6 +4045,56 @@ error:
}
/**
+ * virDomainMemStats:
+ * @dom: pointer to the domain object
+ * @stats: memory stats structure (returned)
+ * @size: size of memory stats structure
+ *
+ * This function returns memory statistics for the domain.
+ *
+ * Individual fields within the stats structure may be returned
+ * as -1, which indicates that the hypervisor or guest does not
+ * support that particular statistic.
+ *
+ * Returns: 0 in case of success or -1 in case of failure.
+ */
+int
+virDomainMemStats (virDomainPtr dom, virDomainMemStatsPtr stats,
+ size_t size)
+{
+ virConnectPtr conn;
+ struct _virDomainMemStats stats2 = { -1, -1, -1, -1, -1, -1 };
+ DEBUG("domain=%p, stats=%p, size=%zi", dom, stats, size);
+
+ virResetLastError();
+
+ if (!VIR_IS_CONNECTED_DOMAIN (dom)) {
+ virLibDomainError (NULL, VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+ return -1;
+ }
+ if (!stats || size > sizeof stats2) {
+ virLibDomainError (dom, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ goto error;
+ }
+ conn = dom->conn;
+
+ if (conn->driver->domainMemStats) {
+ if (conn->driver->domainMemStats (dom, &stats2) == -1)
+ goto error;
+
+ memcpy (stats, &stats2, size);
+ return 0;
+ }
+
+ virLibDomainError (dom, VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+ /* Copy to connection error object for back compatability */
+ virSetConnError(dom->conn);
+ return -1;
+}
+
+/**
* virDomainBlockPeek:
* @dom: pointer to the domain object
* @path: path to the block device
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 8921c1a..009c0ba 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -327,6 +327,7 @@ LIBVIRT_0.7.2 {
virStreamAbort;
virStreamFree;
virDomainMigrateToURI;
+ virDomainMemStats;
} LIBVIRT_0.7.1;
# .... define new API here using predicted next version number ....
--
1.6.5