Reapply "Refactor log channel registration mechanism"

Changes wrt. previous version:
- add #include <atomic>: fix build on windows
- add extra {} around the string literals used to initialize
  llvm::StringLiteral: fix gcc build

llvm-svn: 295442

1 files changed, 10 insertions, 34 deletions

diff --git a/lldb/source/Commands/CommandObjectLog.cpp b/lldb/source/Commands/CommandObjectLog.cpp
index 6fbab08ac63..c10f868dea4 100644
--- a/lldb/source/Commands/CommandObjectLog.cpp
+++ b/lldb/source/Commands/CommandObjectLog.cpp
@@ -227,25 +227,15 @@ protected:
       return false;
     }
 
-    Log::Callbacks log_callbacks;
-
     const std::string channel = args[0].ref;
     args.Shift(); // Shift off the channel
-    if (Log::GetLogChannelCallbacks(ConstString(channel), log_callbacks)) {
-      log_callbacks.disable(args.GetConstArgumentVector(),
-                            &result.GetErrorStream());
-      result.SetStatus(eReturnStatusSuccessFinishNoResult);
-    } else if (channel == "all") {
+    if (channel == "all") {
       Log::DisableAllLogChannels(&result.GetErrorStream());
+      result.SetStatus(eReturnStatusSuccessFinishNoResult);
     } else {
-      LogChannelSP log_channel_sp(LogChannel::FindPlugin(channel.data()));
-      if (log_channel_sp) {
-        log_channel_sp->Disable(args.GetConstArgumentVector(),
-                                &result.GetErrorStream());
+      if (Log::DisableLogChannel(channel, args.GetConstArgumentVector(),
+                                 result.GetErrorStream()))
         result.SetStatus(eReturnStatusSuccessFinishNoResult);
-      } else
-        result.AppendErrorWithFormat("Invalid log channel '%s'.\n",
-                                     channel.data());
     }
     return result.Succeeded();
   }
@@ -284,26 +274,12 @@ protected:
       Log::ListAllLogChannels(&result.GetOutputStream());
       result.SetStatus(eReturnStatusSuccessFinishResult);
     } else {
-      for (auto &entry : args.entries()) {
-        Log::Callbacks log_callbacks;
-
-        if (Log::GetLogChannelCallbacks(ConstString(entry.ref),
-                                        log_callbacks)) {
-          log_callbacks.list_categories(&result.GetOutputStream());
-          result.SetStatus(eReturnStatusSuccessFinishResult);
-        } else if (entry.ref == "all") {
-          Log::ListAllLogChannels(&result.GetOutputStream());
-          result.SetStatus(eReturnStatusSuccessFinishResult);
-        } else {
-          LogChannelSP log_channel_sp(LogChannel::FindPlugin(entry.c_str()));
-          if (log_channel_sp) {
-            log_channel_sp->ListCategories(&result.GetOutputStream());
-            result.SetStatus(eReturnStatusSuccessFinishNoResult);
-          } else
-            result.AppendErrorWithFormat("Invalid log channel '%s'.\n",
-                                         entry.c_str());
-        }
-      }
+      bool success = true;
+      for (const auto &entry : args.entries())
+        success = success && Log::ListChannelCategories(
+                                 entry.ref, result.GetOutputStream());
+      if (success)
+        result.SetStatus(eReturnStatusSuccessFinishResult);
     }
     return result.Succeeded();
   }