commit 2bd8292091e93d0e891018a781e2fd687f46d994
author Rom Lemarchand <romlem@google.com> Fri Mar 15 05:20:05 2013 +0000
committer Android Git Automerger <android-git-automerger@android.com> Fri Mar 15 05:20:05 2013 +0000
tree 63437cd625a25225ee99bcc376039e3798db1884
parent 7c2e195f67e4fc7f89db033c9e54692e6825922f
parent c113311e6c0458d2ac0901c921fc38ca09074516

am c113311e: am 74a7b91c: liblogwrap: lock android_fork_execvp

* commit 'c113311e6c0458d2ac0901c921fc38ca09074516':
  liblogwrap: lock android_fork_execvp

include/cutils/bitops.h

diff --git a/include/cutils/bitops.h b/include/cutils/bitops.h
index eb44236..c26dc54 100644
--- a/include/cutils/bitops.h
+++ b/include/cutils/bitops.h
@@ -75,6 +75,16 @@
     return -1;
 }
 
+static inline int bitmask_weight(unsigned int *bitmask, int num_bits)
+{
+    int i;
+    int weight = 0;
+
+    for (i = 0; i < BITS_TO_WORDS(num_bits); i++)
+        weight += __builtin_popcount(bitmask[i]);
+    return weight;
+}
+
 static inline void bitmask_set(unsigned int *bitmask, int bit)
 {
     bitmask[BIT_WORD(bit)] |= BIT_MASK(bit);