diff options
| author | Nicolas Despres <nicolas.despres@gmail.com> | 2013-08-06 16:12:50 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2013-08-06 20:17:13 (GMT) |
| commit | 2268c41a057d948ad6773c5145ee5bf6d19ea3bf (patch) | |
| tree | 9f5b1b81cdcbd0d496f331bc659b542fd9e99d9f /Source/cmMakefile.h | |
| parent | eccb39d7f44f97d395b75b985b4e18178b72df8c (diff) | |
| download | CMake-2268c41a057d948ad6773c5145ee5bf6d19ea3bf.zip CMake-2268c41a057d948ad6773c5145ee5bf6d19ea3bf.tar.gz CMake-2268c41a057d948ad6773c5145ee5bf6d19ea3bf.tar.bz2 | |
Optimize custom command full-path dependency lookup
In the common case of custom command dependencies specified via full
path optimize the implementation of GetSourceFileWithOutput using a
(hash) map. This is significantly faster than the existing linear
search. In the non-full-path case fall back to the existing linear
suffix search.
Diffstat (limited to 'Source/cmMakefile.h')
| -rw-r--r-- | Source/cmMakefile.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h index 711a208..8bce9fd 100644 --- a/Source/cmMakefile.h +++ b/Source/cmMakefile.h @@ -29,6 +29,9 @@ #include <cmsys/auto_ptr.hxx> #include <cmsys/RegularExpression.hxx> +#if defined(CMAKE_BUILD_WITH_CMAKE) +# include <cmsys/hash_map.hxx> +#endif class cmFunctionBlocker; class cmCommand; @@ -1039,6 +1042,26 @@ private: bool GeneratingBuildSystem; + /** + * Old version of GetSourceFileWithOutput(const char*) kept for + * backward-compatibility. It implements a linear search and support + * relative file paths. It is used as a fall back by + * GetSourceFileWithOutput(const char*). + */ + cmSourceFile *LinearGetSourceFileWithOutput(const char *cname); + + // A map for fast output to input look up. +#if defined(CMAKE_BUILD_WITH_CMAKE) + typedef cmsys::hash_map<std::string, cmSourceFile*> OutputToSourceMap; +#else + typedef std::map<std::string, cmSourceFile*> OutputToSourceMap; +#endif + OutputToSourceMap OutputToSource; + + void UpdateOutputToSourceMap(std::vector<std::string> const& outputs, + cmSourceFile* source); + void UpdateOutputToSourceMap(std::string const& output, + cmSourceFile* source); }; //---------------------------------------------------------------------------- |