BIND 10 trac2198_2, updated. e6ac5ef47d9885e20e247697c8c3d1fe55fd2500 [2198] Check pthread_mutex_trylock()'s return value

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       via  e6ac5ef47d9885e20e247697c8c3d1fe55fd2500 (commit)
      from  48e80a5c7505df708999ef817911d1eb505deaad (commit)

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- Log -----------------------------------------------------------------
commit e6ac5ef47d9885e20e247697c8c3d1fe55fd2500
Author: Mukund Sivaraman <muks at isc.org>
Date:   Mon Oct 15 09:38:39 2012 +0530

    [2198] Check pthread_mutex_trylock()'s return value

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Summary of changes:
 src/lib/util/threads/lock.cc |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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diff --git a/src/lib/util/threads/lock.cc b/src/lib/util/threads/lock.cc
index ab6bd79..acc73d6 100644
--- a/src/lib/util/threads/lock.cc
+++ b/src/lib/util/threads/lock.cc
@@ -123,8 +123,10 @@ bool
 Mutex::tryLock() {
     assert(impl_ != NULL);
     const int result = pthread_mutex_trylock(&impl_->mutex);
-    if (result != 0) {
+    if (result == EBUSY) {
         return (false);
+    } else if (result != 0) {
+        isc_throw(isc::InvalidOperation, std::strerror(result));
     }
     ++impl_->locked_count; // Only in debug mode
     return (true);