[PATCH 07/12] [v2] virNodeGetMemoryStats: Expose new API

[Minoru Usui <usui@xxxxxxxxxxxxxxxxx>]

virNodeGetMemoryStats: Expose new API

Signed-off-by: Minoru Usui <usui@xxxxxxxxxxxxxxxxx>
---
 include/libvirt/libvirt.h.in |   78 ++++++++++++++++++++++++++++++++++++++++++
 src/libvirt_public.syms      |    1 +
 2 files changed, 79 insertions(+), 0 deletions(-)

diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 43e59a7..885db25 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -339,6 +339,70 @@ struct _virCPUStats {
     unsigned long long value;
 };
 
+/**
+ * VIR_MEMORY_STATS_FIELD_LENGTH:
+ *
+ * Macro providing the field length of virMemoryStats
+ */
+#define VIR_MEMORY_STATS_FIELD_LENGTH 80
+
+/**
+ * VIR_MEMORY_STATS_ALL_CELLS:
+ *
+ * Macro for the total memory of all cells.
+ */
+#define VIR_MEMORY_STATS_ALL_CELLS -1
+
+/**
+ * VIR_MEMORY_STATS_TOTAL:
+ *
+ * Macro for the total memory of specified cell:
+ * it represents the maximum memory.
+ */
+
+#define VIR_MEMORY_STATS_TOTAL "total"
+
+/**
+ * VIR_MEMORY_STATS_FREE:
+ *
+ * Macro for the free memory of specified cell:
+ * On linux, it includes buffer and cached memory, in case of
+ * VIR_MEMORY_STATS_ALL_CELLS.
+ */
+
+#define VIR_MEMORY_STATS_FREE "free"
+
+/**
+ * VIR_MEMORY_STATS_BUFFERS:
+ *
+ * Macro for the buffer memory: On linux, it only returns in case of
+ * VIR_MEMORY_STATS_ALL_CELLS.
+ */
+
+#define VIR_MEMORY_STATS_BUFFERS "buffers"
+
+/**
+ * VIR_MEMORY_STATS_CACHED:
+ *
+ * Macro for the cached memory: On linux, it only returns in case of
+ * VIR_MEMORY_STATS_ALL_CELLS.
+ */
+
+#define VIR_MEMORY_STATS_CACHED "cached"
+
+/**
+ * virMemoryStats:
+ *
+ * a virMemoryStats is a structure filled by virNodeGetMemoryStats()
+ * and providing the information of the memory of the Node.
+ */
+
+typedef struct _virMemoryStats virMemoryStats;
+
+struct _virMemoryStats {
+    char field[VIR_MEMORY_STATS_FIELD_LENGTH];
+    unsigned long long value;
+};
 
 /* Common data types shared among interfaces with name/type/value lists.  */
 
@@ -611,6 +675,14 @@ typedef virNodeInfo *virNodeInfoPtr;
 typedef virCPUStats *virCPUStatsPtr;
 
 /**
+ * virMemoryStatsPtr:
+ *
+ * a virMemoryStatsPtr is a pointer to a virMemoryStats structure.
+ */
+
+typedef virMemoryStats *virMemoryStatsPtr;
+
+/**
  * virConnectFlags
  *
  * Flags when opening a connection to a hypervisor
@@ -750,6 +822,12 @@ int                     virNodeGetCPUStats (virConnectPtr conn,
                                             int *nparams,
                                             unsigned int flags);
 
+int                     virNodeGetMemoryStats (virConnectPtr conn,
+                                               int cellNum,
+                                               virCPUStatsPtr params,
+                                               int *nparams,
+                                               unsigned int flags);
+
 unsigned long long      virNodeGetFreeMemory    (virConnectPtr conn);
 
 int                     virNodeGetSecurityModel (virConnectPtr conn,
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 271b8e3..3aadc6f 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -453,6 +453,7 @@ LIBVIRT_0.9.2 {
 LIBVIRT_0.9.3 {
     global:
         virNodeGetCPUStats;
+	virNodeGetMemoryStats;
 } LIBVIRT_0.9.2;
 
 # .... define new API here using predicted next version number ....
-- 
1.7.1

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