[PATCH 2/4] libxl: add sched_get_id function

[Andre Przywara <andre.przywara@amd.com>]

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To get the name of the currently used scheduler, Xen provides a sched_id 
sysctl.
Add a libxl wrapper around the libxc function to query this.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>

-- 
Andre Przywara
AMD-Operating System Research Center (OSRC), Dresden, Germany
Tel: +49 351 488-3567-12

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diff -r 7ee8bb40200a tools/libxl/libxl.c
--- a/tools/libxl/libxl.c	Thu Apr 15 19:11:16 2010 +0100
+++ b/tools/libxl/libxl.c	Sun Apr 18 14:37:44 2010 +0200
@@ -2421,3 +2421,13 @@
     }
     return 0;
 }
+
+int libxl_get_sched_id(struct libxl_ctx *ctx)
+{
+    int sched, ret;
+
+    if ((ret = xc_sched_id(ctx->xch, &sched)) != 0)
+        return -ret;
+    return sched;
+}
+
diff -r 7ee8bb40200a tools/libxl/libxl.h
--- a/tools/libxl/libxl.h	Thu Apr 15 19:11:16 2010 +0100
+++ b/tools/libxl/libxl.h	Sun Apr 18 14:37:44 2010 +0200
@@ -441,5 +441,7 @@
 int libxl_set_vcpuaffinity(struct libxl_ctx *ctx, uint32_t domid, uint32_t vcpuid,
                            uint64_t *cpumap, int cpusize);
 int libxl_set_vcpucount(struct libxl_ctx *ctx, uint32_t domid, uint32_t count);
+
+int libxl_get_sched_id(struct libxl_ctx *ctx);
 #endif /* LIBXL_H */
 

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