Re: [cmake-developers] New command 'file(LOCK_DIRECTORY ...)'

Brad King Fri, 14 Nov 2014 11:58:38 -0800

On 11/14/2014 12:31 PM, Ruslan Baratov wrote:
> ConvertToWindowsExtendedPath fix + tests


Thanks.  I started testing on Linux so far.  A few more comments:

- Please add more test cases covering all the file(LOCK)
  argument processing error messages.

- Please squash in the attached patch to your commit that
  adds the file(LOCK) command to CMake.  We should not need
  to build it during bootstrap.

- Instead of ::sleep you can use cmSystemTools::Delay()

- We need to test whether failing to lock after a timeout
  actually works.  I tried adding a line to
  Tests/RunCMake/file/LOCK.cmake:

   file(LOCK "${lfile}" TIMEOUT 3)

  at the end of the file, duplicating the one before it.
  I expected to see a 3 second delay followed by a lock
  failure.  Instead it fails immediately.  Is that expected?

Thanks,
-Brad

>From 36c0d3450f3968c2f3a3ee8912c6b9a12978906e Mon Sep 17 00:00:00 2001
Message-Id: <36c0d3450f3968c2f3a3ee8912c6b9a12978906e.1415994879.git.brad.k...@kitware.com>
From: Brad King <[email protected]>
Date: Fri, 14 Nov 2014 14:39:46 -0500
Subject: [PATCH] file(LOCK): Drop this API during CMake bootstrap build

CMake's own build system won't need this.
---
 Source/cmFileCommand.cxx    | 9 +++++++--
 Source/cmGlobalGenerator.h  | 6 +++++-
 Source/cmLocalGenerator.cxx | 4 ++++
 Source/cmMakefile.cxx       | 4 ++++
 bootstrap                   | 3 ---
 5 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/Source/cmFileCommand.cxx b/Source/cmFileCommand.cxx
index 7d5d4c7..e060bbd 100644
--- a/Source/cmFileCommand.cxx
+++ b/Source/cmFileCommand.cxx
@@ -21,9 +21,8 @@
 
 #if defined(CMAKE_BUILD_WITH_CMAKE)
 #include "cm_curl.h"
-#endif
-
 #include "cmFileLockResult.h"
+#endif
 
 #undef GetCurrentDirectory
 #include <assert.h>
@@ -3511,6 +3510,7 @@ bool cmFileCommand::HandleGenerateCommand(
 bool cmFileCommand::HandleLockCommand(
   std::vector<std::string> const& args)
 {
+#if defined(CMAKE_BUILD_WITH_CMAKE)
   // Default values
   bool directory = false;
   bool release = false;
@@ -3691,6 +3691,11 @@ bool cmFileCommand::HandleLockCommand(
     }
 
   return true;
+#else
+  static_cast<void>(args);
+  this->SetError("sub-command LOCK not implemented in boostrap cmake");
+  return false;
+#endif
 }
 
 //----------------------------------------------------------------------------
diff --git a/Source/cmGlobalGenerator.h b/Source/cmGlobalGenerator.h
index 0f79174..0847654 100644
--- a/Source/cmGlobalGenerator.h
+++ b/Source/cmGlobalGenerator.h
@@ -21,9 +21,9 @@
 #include "cmExportSetMap.h" // For cmExportSetMap
 #include "cmGeneratorTarget.h"
 #include "cmGeneratorExpression.h"
-#include "cmFileLockPool.h"
 
 #if defined(CMAKE_BUILD_WITH_CMAKE)
+# include "cmFileLockPool.h"
 # include <cmsys/hash_map.hxx>
 #endif
 
@@ -349,7 +349,9 @@ public:
   std::set<cmTarget const*> const&
   GetFilenameTargetDepends(cmSourceFile* sf) const;
 
+#if defined(CMAKE_BUILD_WITH_CMAKE)
   cmFileLockPool& GetFileLockPool() { return FileLockPool; }
+#endif
 
 protected:
   virtual void Generate();
@@ -502,8 +504,10 @@ private:
   mutable std::map<cmSourceFile*, std::set<cmTarget const*> >
   FilenameTargetDepends;
 
+#if defined(CMAKE_BUILD_WITH_CMAKE)
   // Pool of file locks
   cmFileLockPool FileLockPool;
+#endif
 };
 
 #endif
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 6b5d785..2de6c93 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -79,11 +79,15 @@ public:
     this->GG = lg->GetGlobalGenerator();
     this->LG = this->GG->GetCurrentLocalGenerator();
     this->GG->SetCurrentLocalGenerator(lg);
+#if defined(CMAKE_BUILD_WITH_CMAKE)
     this->GG->GetFileLockPool().PushFileScope();
+#endif
     }
   ~cmLocalGeneratorCurrent()
     {
+#if defined(CMAKE_BUILD_WITH_CMAKE)
     this->GG->GetFileLockPool().PopFileScope();
+#endif
     this->GG->SetCurrentLocalGenerator(this->LG);
     }
 };
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index a94c752..5484421 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -4426,8 +4426,10 @@ void cmMakefile::PushScope()
   this->Internal->VarStack.push(cmDefinitions(parent));
   this->Internal->VarInitStack.push(init);
   this->Internal->VarUsageStack.push(usage);
+#if defined(CMAKE_BUILD_WITH_CMAKE)
   this->GetLocalGenerator()->GetGlobalGenerator()->
     GetFileLockPool().PushFunctionScope();
+#endif
 }
 
 void cmMakefile::PopScope()
@@ -4465,8 +4467,10 @@ void cmMakefile::PopScope()
     {
     this->Internal->VarUsageStack.top().insert(*it);
     }
+#if defined(CMAKE_BUILD_WITH_CMAKE)
   this->GetLocalGenerator()->GetGlobalGenerator()->
     GetFileLockPool().PopFunctionScope();
+#endif
 }
 
 void cmMakefile::RaiseScope(const std::string& var, const char *varDef)
diff --git a/bootstrap b/bootstrap
index 19189d3..94bed0e 100755
--- a/bootstrap
+++ b/bootstrap
@@ -286,9 +286,6 @@ CMAKE_CXX_SOURCES="\
   cmSystemTools \
   cmTestGenerator \
   cmVersion \
-  cmFileLock \
-  cmFileLockPool \
-  cmFileLockResult \
   cmFileTimeComparison \
   cmGlobalUnixMakefileGenerator3 \
   cmLocalUnixMakefileGenerator3 \
-- 
2.1.1

-- 

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Re: [cmake-developers] New command 'file(LOCK_DIRECTORY ...)'

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