[PATCH V5 23/32] libxl: introduce libxl_cpuid_policy_list_length

[Wei Liu <wei.liu2@citrix.com>]

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 tools/libxl/libxl.h       |    1 +
 tools/libxl/libxl_cpuid.c |   12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 3886b9e..4b75802 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -573,6 +573,7 @@ void libxl_bitmap_dispose(libxl_bitmap *map);
 typedef struct libxl__cpuid_policy libxl_cpuid_policy;
 typedef libxl_cpuid_policy * libxl_cpuid_policy_list;
 void libxl_cpuid_dispose(libxl_cpuid_policy_list *cpuid_list);
+int libxl_cpuid_policy_list_length(libxl_cpuid_policy_list *l);
 
 #define LIBXL_PCI_FUNC_ALL (~0U)
 
diff --git a/tools/libxl/libxl_cpuid.c b/tools/libxl/libxl_cpuid.c
index d9007b2..fe14b87 100644
--- a/tools/libxl/libxl_cpuid.c
+++ b/tools/libxl/libxl_cpuid.c
@@ -455,6 +455,18 @@ int libxl_cpuid_policy_list_parse_json(libxl__gc *gc,
     return 0;
 }
 
+int libxl_cpuid_policy_list_length(libxl_cpuid_policy_list *pl)
+{
+    int i = 0;
+    libxl_cpuid_policy_list l = *pl;
+
+    if (l)
+        while (l[i].input[0] != XEN_CPUID_INPUT_UNUSED)
+            i++;
+
+    return i;
+}
+
 /*
  * Local variables:
  * mode: C
-- 
1.7.10.4