buffet: Add an abstract command dispatch interface
Added simple framework for implementing command dispatch from
buffet to command-handling daemons which concrete delivery
layers, such as D-Bus, can use to actually implement the command
delivery.
Also changed some CommandQueue unit tests to remove the
implementation detail knowledge of how the command IDs are generated.
BUG=chromium:374864
TEST=USE=buffet P2_TEST_FILTER="buffet::*" FEATURES=test emerge-link platform2
Change-Id: Ic7a719a09e924fefedc72cc0bb675adf1acd3713
Reviewed-on: https://chromium-review.googlesource.com/211485
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/buffet/commands/command_queue.cc b/buffet/commands/command_queue.cc
index ca1e7f9..671db6d 100644
--- a/buffet/commands/command_queue.cc
+++ b/buffet/commands/command_queue.cc
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+#include "buffet/commands/command_dispatch_interface.h"
#include "buffet/commands/command_queue.h"
namespace buffet {
@@ -11,6 +12,9 @@
auto pair = map_.insert(std::make_pair(id, std::move(instance)));
LOG_IF(FATAL, !pair.second) << "Command with ID '" << id
<< "' is already in the queue";
+ if (dispatch_interface_)
+ dispatch_interface_->OnCommandAdded(id, pair.first->second.get());
+
return id;
}
@@ -21,6 +25,8 @@
if (p != map_.end()) {
instance = std::move(p->second);
map_.erase(p);
+ if (dispatch_interface_)
+ dispatch_interface_->OnCommandRemoved(id, instance.get());
}
return instance;
}