Add iostream printing of `LockingRequirements` enum values

2 files changed, 8 insertions, 0 deletions

diff --git a/storageapi/src/vespa/storageapi/messageapi/storagemessage.cpp b/storageapi/src/vespa/storageapi/messageapi/storagemessage.cpp
index 3413feeeeab..380d846dd93 100644
--- a/storageapi/src/vespa/storageapi/messageapi/storagemessage.cpp
+++ b/storageapi/src/vespa/storageapi/messageapi/storagemessage.cpp
@@ -312,4 +312,9 @@ const char* to_string(LockingRequirements req) noexcept {
     assert(false);
 }
 
+std::ostream& operator<<(std::ostream& os, LockingRequirements req) {
+    os << to_string(req);
+    return os;
+}
+
 }
diff --git a/storageapi/src/vespa/storageapi/messageapi/storagemessage.h b/storageapi/src/vespa/storageapi/messageapi/storagemessage.h
index 90261c2b9b1..6c561f3af21 100644
--- a/storageapi/src/vespa/storageapi/messageapi/storagemessage.h
+++ b/storageapi/src/vespa/storageapi/messageapi/storagemessage.h
@@ -19,6 +19,7 @@
 #include <vespa/document/bucket/bucket.h>
 #include <vespa/vespalib/util/printable.h>
 #include <map>
+#include <iosfwd>
 
 namespace vespalib {
     class asciistream;
@@ -318,6 +319,8 @@ enum class LockingRequirements : uint8_t {
 
 const char* to_string(LockingRequirements req) noexcept;
 
+std::ostream& operator<<(std::ostream&, LockingRequirements);
+
 class StorageMessage : public vespalib::Printable
 {
     friend class StorageMessageTest; // Used for testing only