Files
openfoam/src/OpenFOAM/db/dynamicLibrary/dynamicCode/dynamicCode.H
Mark Olesen a85c55bbb5 ENH: ensure that content changes in coded objects are noticed (#1293)
- for codedFunctionObject and CodedSource the main code snippets
  were not included in the SHA1 calculation, which meant that many
  changes would not be noticed and no new library would be compiled.

  As a workaround, a dummy 'code' entry could be used solely for the
  purposes of generating a SHA1, but this is easily forgotten.

  We now allow tracking of the dynamicCodeContext for the coded
  objects and append to the SHA1 hasher with specific entries.
  This should solve the previous misbehaviour.

  We additionally add information about the ordering of the code
  sections. Suppose we have a coded function object (all code
  segments are optional) with the following:

      codeExecute "";
      codeWrite   #{ Info<< "Called\n"; #};

  which we subsequently change to this:

      codeExecute #{ Info<< "Called\n"; #};
      codeWrite   "";

  If the code strings are simply concatenated together, the SHA1 hashes
  will be identical. We thus 'salt' with their semantic locations,
  choosing tags that are unlikely to occur within the code strings
  themselves.

- simplify the coded templates with constexpr for the SHA1sum
  information.

- Correct the CodedSource to use 'codeConstrain' instead of
  'codeSetValue' for consistency with the underlying functions.
2019-05-01 14:00:54 +02:00

311 lines
8.8 KiB
C++

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
| Copyright (C) 2011 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::dynamicCode
Description
Tools for handling dynamic code compilation
SourceFiles
dynamicCode.C
\*---------------------------------------------------------------------------*/
#ifndef dynamicCode_H
#define dynamicCode_H
#include "Tuple2.H"
#include "HashTable.H"
#include "DynamicList.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward declarations
class dynamicCodeContext;
class ISstream;
class OSstream;
class SHA1Digest;
/*---------------------------------------------------------------------------*\
Class dynamicCode Declaration
\*---------------------------------------------------------------------------*/
class dynamicCode
{
public:
typedef Tuple2<fileName, string> fileAndContent;
private:
// Private data
//- Root for dynamic code compilation
fileName codeRoot_;
//- Subdirectory name for loading libraries
const fileName libSubDir_;
//- Name for code
word codeName_;
//- Name for code subdirectory
word codeDirName_;
//- Files to copy and filter
DynamicList<fileName> compileFiles_;
//- Files to copy and filter
DynamicList<fileName> copyFiles_;
//- Direct contents for files
DynamicList<fileAndContent> createFiles_;
//- Variables to use during filtering
HashTable<string> filterVars_;
//- Contents for Make/options
std::string makeOptions_;
// Private Member Functions
//- No copy construct
dynamicCode(const dynamicCode&) = delete;
//- No copy assignment
void operator=(const dynamicCode&) = delete;
protected:
// Static data members
//- Root of the LIB target for Make/files
static const char* const libTargetRoot;
//- Top-level directory name for copy/compiling
static const char* const topDirName;
// Protected Member Functions
//- Copy lines while expanding variables
static void copyAndFilter
(
ISstream&,
OSstream&,
const HashTable<string>& mapping
);
//- Resolve code-templates via the codeTemplateEnvName
// alternatively in the codeTemplateDirName via Foam::findEtcFile
static bool resolveTemplates
(
const UList<fileName>& templateNames,
DynamicList<fileName>& resolvedFiles,
DynamicList<fileName>& badFiles
);
//- Write SHA1 value as C-comment
bool writeCommentSHA1(Ostream&) const;
//- Copy/create Make/files prior to compilation
bool createMakeFiles() const;
//- Copy/create Make/options prior to compilation
bool createMakeOptions() const;
//- Write digest to Make/SHA1Digest
bool writeDigest(const SHA1Digest&) const;
//- Write digest to Make/SHA1Digest
bool writeDigest(const std::string&) const;
public:
// Static data members
//- Name of the code template environment variable
// Used to located the codeTemplateName
static const word codeTemplateEnvName;
//- Name of the code template sub-directory
// Used when locating the codeTemplateName via Foam::findEtcFile
static const fileName codeTemplateDirName;
//- Flag if system operations are allowed
static int allowSystemOperations;
// Static Member functions
//- Check security for creating dynamic code
static void checkSecurity(const char* title, const dictionary&);
//- Return the library basename without leading 'lib' or trailing '.so'
static word libraryBaseName(const fileName& libPath);
// Constructors
//- Construct for a specified code name and code directory name
// Defaults to using the code name for the code directory name
dynamicCode
(
const word& codeName,
const word& codeDirName = ""
);
// Member functions
//- Return the code-name
const word& codeName() const
{
return codeName_;
}
//- Return the code-dirname
const word& codeDirName() const
{
return codeDirName_;
}
//- Root for dynamic code compilation
// Expanded from \<case\>/dynamicCode
const fileName& codeRoot() const
{
return codeRoot_;
}
//- Subdirectory name for loading libraries
// Expanded from platforms/\$WM_OPTIONS/lib
fileName libSubDir() const
{
return libSubDir_;
}
//- Path for specified code name
// Corresponds to codeRoot()/codeDirName()
fileName codePath() const
{
return codeRoot_/codeDirName_;
}
//- Path for specified code name relative to \<case\>
// Corresponds to topDirName/codeDirName()
fileName codeRelPath() const;
//- Library path for specified code name
// Corresponds to codeRoot()/libSubDir()/lib\<codeName\>.so
fileName libPath() const;
//- Library path for specified code name relative to \<case\>
// Corresponds to
// dynamicCode/codeDirName()/libSubDir()/lib\<codeName\>.so
fileName libRelPath() const;
//- Path for SHA1Digest
// Corresponds to codePath()/Make/SHA1Digest
fileName digestFile() const
{
return codeRoot_/codeDirName_/"Make/SHA1Digest";
}
//- Clear files and variables
void clear();
//- Clear files and reset variables to specified context
void reset(const dynamicCodeContext&);
//- Add a file template name, which will be found and filtered
void addCompileFile(const fileName& name);
//- Add a file template name, which will be found and filtered
void addCopyFile(const fileName& name);
//- Add a file to create with its contents. Will not be filtered
void addCreateFile(const fileName& name, const string& contents);
//- Define filter variables for code, codeInclude, SHA1sum
void setFilterContext(const dynamicCodeContext&);
//- Define a filter variable
void setFilterVariable(const word& key, const std::string& value);
//- Define contents for Make/options
void setMakeOptions(const std::string& content);
//- Verify if the copied code is up-to-date, based on Make/SHA1Digest
bool upToDate(const dynamicCodeContext& context) const;
//- Verify if the copied code is up-to-date, based on Make/SHA1Digest
bool upToDate(const SHA1Digest& sha1) const;
//- Copy/create files prior to compilation
bool copyOrCreateFiles(const bool verbose = false) const;
//- Compile a libso
bool wmakeLibso() const;
// Convenience
//- Define a filter variables TemplateType and FieldType
template<class Type>
void setFieldTemplates()
{
std::string val(pTraits<Type>::typeName);
// Template type
setFilterVariable("TemplateType", val);
// Field type - eg, ScalarField, VectorField, ...
val[0] = toupper(val[0]);
val += "Field";
setFilterVariable("FieldType", val);
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //