SERVER-20752 improve NetworkInterfaceASIO logging

- add a log component for ASIO, make it a subcomponent of Network
- add additional LOG(2), and LOG(3) messages for tracing
- remove a few redundant log messages

A previous version of this patch had a bug where we could access the
state of a freed AsyncOp.

2 files changed, 6 insertions, 0 deletions

diff --git a/src/mongo/logger/log_component.cpp b/src/mongo/logger/log_component.cpp
index 0382abb8692..8f3c82b49b6 100644
--- a/src/mongo/logger/log_component.cpp
+++ b/src/mongo/logger/log_component.cpp
@@ -81,6 +81,7 @@ LogComponent LogComponent::parent() const {
         case kDefault:
             return kNumLogComponents;
             DECLARE_LOG_COMPONENT_PARENT(kJournal, kStorage);
+            DECLARE_LOG_COMPONENT_PARENT(kASIO, kNetwork);
         case kNumLogComponents:
             return kNumLogComponents;
         default:
@@ -121,6 +122,8 @@ StringData LogComponent::toStringData() const {
             return createStringData("write");
         case kFTDC:
             return createStringData("ftdc");
+        case kASIO:
+            return createStringData("asio");
         case kNumLogComponents:
             return createStringData("total");
             // No default. Compiler should complain if there's a log component that's not handled.
@@ -187,6 +190,8 @@ StringData LogComponent::getNameForLog() const {
             return createStringData("WRITE   ");
         case kFTDC:
             return createStringData("FTDC    ");
+        case kASIO:
+            return createStringData("ASIO    ");
         case kNumLogComponents:
             return createStringData("TOTAL   ");
             // No default. Compiler should complain if there's a log component that's not handled.
diff --git a/src/mongo/logger/log_component.h b/src/mongo/logger/log_component.h
index 4fdac77e12d..a771e20558a 100644
--- a/src/mongo/logger/log_component.h
+++ b/src/mongo/logger/log_component.h
@@ -58,6 +58,7 @@ public:
         kJournal,
         kWrite,
         kFTDC,
+        kASIO,
         kNumLogComponents
     };