From 50888ebdc02b3d14e775206e0abb4d2a64cb9580 Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Wed, 10 Apr 2013 12:58:12 +0200
Subject: [PATCH] BSolverRepository: Add a change count

... so we can easily check whether the repository has changed since the
last time we used it.
---
 headers/os/package/solver/SolverRepository.h |  3 +++
 src/kits/package/solver/SolverRepository.cpp | 27 ++++++++++++++++----
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/headers/os/package/solver/SolverRepository.h b/headers/os/package/solver/SolverRepository.h
index 24dc961784..1cd7fa2120 100644
--- a/headers/os/package/solver/SolverRepository.h
+++ b/headers/os/package/solver/SolverRepository.h
@@ -63,6 +63,8 @@ public:
 			status_t			AddPackages(
 									BPackageInstallationLocation location);
 
+			uint64				ChangeCount() const;
+
 private:
 			typedef BObjectList<BSolverPackage> PackageList;
 
@@ -71,6 +73,7 @@ private:
 			uint8				fPriority;
 			bool				fIsInstalled;
 			PackageList			fPackages;
+			uint64				fChangeCount;
 };
 
 
diff --git a/src/kits/package/solver/SolverRepository.cpp b/src/kits/package/solver/SolverRepository.cpp
index b78cb6d415..1e710178f4 100644
--- a/src/kits/package/solver/SolverRepository.cpp
+++ b/src/kits/package/solver/SolverRepository.cpp
@@ -27,7 +27,8 @@ BSolverRepository::BSolverRepository()
 	fName(),
 	fPriority(0),
 	fIsInstalled(false),
-	fPackages(kInitialPackageListSize, true)
+	fPackages(kInitialPackageListSize, true),
+	fChangeCount(0)
 {
 }
 
@@ -37,7 +38,8 @@ BSolverRepository::BSolverRepository(const BString& name)
 	fName(),
 	fPriority(0),
 	fIsInstalled(false),
-	fPackages(kInitialPackageListSize, true)
+	fPackages(kInitialPackageListSize, true),
+	fChangeCount(0)
 {
 	SetTo(name);
 }
@@ -48,7 +50,8 @@ BSolverRepository::BSolverRepository(BPackageInstallationLocation location)
 	fName(),
 	fPriority(0),
 	fIsInstalled(false),
-	fPackages(kInitialPackageListSize, true)
+	fPackages(kInitialPackageListSize, true),
+	fChangeCount(0)
 {
 	SetTo(location);
 }
@@ -59,7 +62,8 @@ BSolverRepository::BSolverRepository(BAllInstallationLocations)
 	fName(),
 	fPriority(0),
 	fIsInstalled(false),
-	fPackages(kInitialPackageListSize, true)
+	fPackages(kInitialPackageListSize, true),
+	fChangeCount(0)
 {
 	SetTo(B_ALL_INSTALLATION_LOCATIONS);
 }
@@ -70,7 +74,8 @@ BSolverRepository::BSolverRepository(const BRepositoryConfig& config)
 	fName(),
 	fPriority(0),
 	fIsInstalled(false),
-	fPackages(kInitialPackageListSize, true)
+	fPackages(kInitialPackageListSize, true),
+	fChangeCount(0)
 {
 	SetTo(config);
 }
@@ -171,6 +176,7 @@ BSolverRepository::Unset()
 	fPriority = 0;
 	fIsInstalled = false;
 	fPackages.MakeEmpty();
+	fChangeCount++;
 }
 
 
@@ -192,6 +198,7 @@ void
 BSolverRepository::SetInstalled(bool isInstalled)
 {
 	fIsInstalled = isInstalled;
+	fChangeCount++;
 }
 
 
@@ -213,6 +220,7 @@ void
 BSolverRepository::SetPriority(uint8 priority)
 {
 	fPriority = priority;
+	fChangeCount++;
 }
 
 
@@ -247,6 +255,8 @@ BSolverRepository::AddPackage(const BPackageInfo& info,
 		return B_NO_MEMORY;
 	}
 
+	fChangeCount++;
+
 	if (_package != NULL)
 		*_package = package;
 
@@ -274,4 +284,11 @@ BSolverRepository::AddPackages(BPackageInstallationLocation location)
 }
 
 
+uint64
+BSolverRepository::ChangeCount() const
+{
+	return fChangeCount;
+}
+
+
 }	// namespace BPackageKit