vppinfra: momve clib_sysfs_list_to_bitmap to sysfs.c

[vpp.git] / src / vppinfra / linux / sysfs.c

diff --git a/src/vppinfra/linux/sysfs.c b/src/vppinfra/linux/sysfs.c
index 1157e4f..758eaa1 100644 (file)
--- a/src/vppinfra/linux/sysfs.c
+++ b/src/vppinfra/linux/sysfs.c
@@ -16,6 +16,7 @@
 #include <vppinfra/clib.h>
 #include <vppinfra/clib_error.h>
 #include <vppinfra/format.h>
+#include <vppinfra/bitmap.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -262,6 +263,32 @@ clib_sysfs_prealloc_hugepages (int numa_node, int log2_page_size, int nr)
   return clib_sysfs_set_nr_hugepages (numa_node, log2_page_size, n + needed);
 }
 
+__clib_export uword *
+clib_sysfs_list_to_bitmap (char *filename)
+{
+  FILE *fp;
+  uword *r = 0;
+
+  fp = fopen (filename, "r");
+
+  if (fp != NULL)
+    {
+      u8 *buffer = 0;
+      vec_validate (buffer, 256 - 1);
+      if (fgets ((char *) buffer, 256, fp))
+       {
+         unformat_input_t in;
+         unformat_init_string (&in, (char *) buffer,
+                               strlen ((char *) buffer));
+         if (unformat (&in, "%U", unformat_bitmap_list, &r) != 1)
+           clib_warning ("unformat_bitmap_list failed");
+         unformat_free (&in);
+       }
+      vec_free (buffer);
+      fclose (fp);
+    }
+  return r;
+}
 
 /*
  * fd.io coding-style-patch-verification: ON