[libvirt] [PATCH] hash: minor touchups
On RHEL5, I got:
util/virrandom.c:66: warning: nested extern declaration of '_gl_verify_function66'
[-Wnested-externs]
The fix is to hoist the verify earlier. Also some other hodge-podge
fixes I noticed while reviewing Dan's recent series.
* .gitignore: Ignore new test.
* src/util/cgroup.c: Bump copyright year.
* src/util/virhash.c: Fix typo in description.
* src/util/virrandom.c (virRandomBits): Mark doc comment, and
hoist assert to silence older gcc.
---
Pushing under the build-breaker rule.
We didn't notice it earlier because newer gcc introduced
_Static_assert (per C11), so that verify() doesn't have to
rely on extern declarations in that case.
.gitignore | 1 +
src/util/cgroup.c | 2 +-
src/util/virhash.c | 2 +-
src/util/virrandom.c | 10 +++++-----
4 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/.gitignore b/.gitignore
index 61a9a38..2533fce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -78,6 +78,7 @@
/tests/openvzutilstest
/tests/qemuxmlnstest
/tests/shunloadtest
+/tests/virhashtest
/update.log
Makefile
Makefile.in
diff --git a/src/util/cgroup.c b/src/util/cgroup.c
index 3f092ab..15b870d 100644
--- a/src/util/cgroup.c
+++ b/src/util/cgroup.c
@@ -1,7 +1,7 @@
/*
* cgroup.c: Tools for managing cgroups
*
- * Copyright (C) 2010-2011 Red Hat, Inc.
+ * Copyright (C) 2010-2012 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* See COPYING.LIB for the License of this software
diff --git a/src/util/virhash.c b/src/util/virhash.c
index efaa286..6dec684 100644
--- a/src/util/virhash.c
+++ b/src/util/virhash.c
@@ -1,5 +1,5 @@
/*
- * virhash.c: chained hash tables for domain and domain/connection deallocatiosn
+ * virhash.c: chained hash tables
*
* Reference: Your favorite introductory book on algorithms
*
diff --git a/src/util/virrandom.c b/src/util/virrandom.c
index 0af94d5..ec0cf03 100644
--- a/src/util/virrandom.c
+++ b/src/util/virrandom.c
@@ -46,7 +46,11 @@ int virRandomInitialize(uint32_t seed)
return 0;
}
-/*
+/* The algorithm of virRandomBits requires that RAND_MAX == 2^n-1 for
+ * some n; gnulib's random_r meets this property. */
+verify(((RAND_MAX + 1U) & RAND_MAX) == 0);
+
+/**
* virRandomBits:
* @nbits: Number of bits of randommess required
*
@@ -61,10 +65,6 @@ uint64_t virRandomBits(int nbits)
uint64_t ret = 0;
int32_t bits;
- /* This algorithm requires that RAND_MAX == 2^n-1 for some n;
- gnulib's random_r meets this property. */
- verify(((RAND_MAX + 1U) & RAND_MAX) == 0);
-
virMutexLock(&randomLock);
while (nbits > bits_per_iter) {
--
1.7.7.6