From 775c3495e215ed1a9604ec045465483360704b52 Mon Sep 17 00:00:00 2001 From: Andy Cedilnik Date: Wed, 12 Oct 2005 13:36:07 -0400 Subject: ENH: Add file time comparison code --- Source/CMakeLists.txt | 2 + Source/cmFileTimeComparison.cxx | 168 ++++++++++++++++++++++++++++++++++++++++ Source/cmFileTimeComparison.h | 50 ++++++++++++ bootstrap | 1 + 4 files changed, 221 insertions(+) create mode 100644 Source/cmFileTimeComparison.cxx create mode 100644 Source/cmFileTimeComparison.h diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt index 21334b2..970d11b 100644 --- a/Source/CMakeLists.txt +++ b/Source/CMakeLists.txt @@ -115,6 +115,8 @@ SET(SRCS cmMakefile.cxx cmMakefile.h cmOrderLinkDirectories.cxx + cmFileTimeComparison.cxx + cmFileTimeComparison.h cmSourceFile.cxx cmSourceFile.h cmSourceGroup.cxx diff --git a/Source/cmFileTimeComparison.cxx b/Source/cmFileTimeComparison.cxx new file mode 100644 index 0000000..2b0c8cf --- /dev/null +++ b/Source/cmFileTimeComparison.cxx @@ -0,0 +1,168 @@ +/*========================================================================= + + Program: CMake - Cross-Platform Makefile Generator + Module: $RCSfile$ + Language: C++ + Date: $Date$ + Version: $Revision$ + + Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. + See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. + + This software is distributed WITHOUT ANY WARRANTY; without even + the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR + PURPOSE. See the above copyright notices for more information. + +=========================================================================*/ +#include "cmFileTimeComparison.h" + +#include +#include +#include + +#if defined(CMAKE_BUILD_WITH_CMAKE) +# include +#endif + +#include +#include + +#if !defined(_WIN32) || defined(__CYGWIN__) +# define cmFileTimeComparison_Type struct stat +#else +# define cmFileTimeComparison_Type FILETIME +#endif + +class cmFileTimeComparisonInternal +{ +public: + inline bool FileTimeCompare(const char* f1, const char* f2, int* result); + +private: +#if defined(CMAKE_BUILD_WITH_CMAKE) + class HashString + { + public: + size_t operator()(const cmStdString& s) const + { + return h(s.c_str()); + } + cmsys::hash h; + }; + typedef cmsys::hash_map FileStatsMap; + FileStatsMap Files; +#endif + + inline bool Stat(const char* fname, cmFileTimeComparison_Type* st); + inline int Compare(cmFileTimeComparison_Type* st1, cmFileTimeComparison_Type* st2); +}; + +bool cmFileTimeComparisonInternal::Stat(const char* fname, cmFileTimeComparison_Type* st) +{ +#if defined(CMAKE_BUILD_WITH_CMAKE) + cmFileTimeComparisonInternal::FileStatsMap::iterator fit = this->Files.find(fname); + if ( fit != this->Files.end() ) + { + *st = fit->second; + return 0; + } +#endif +#if !defined(_WIN32) || defined(__CYGWIN__) + int res = ::stat(fname, st); + if ( res != 0 ) + { + return false; + } +#else + // Windows version. Create file handles and get the modification times. + HANDLE hf1 = CreateFile(f1, GENERIC_READ, FILE_SHARE_READ, + NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, + NULL); + if(hf1 == INVALID_HANDLE_VALUE) + { + return false; + } + if(!GetFileTime(hf1, 0, 0, st)) + { + CloseHandle(hf1); + return false; + } + CloseHandle(hf1); +#endif +#if defined(CMAKE_BUILD_WITH_CMAKE) + this->Files[fname] = *st; +#endif + return true; +} + +cmFileTimeComparison::cmFileTimeComparison() +{ + m_Internals = new cmFileTimeComparisonInternal; +} + +cmFileTimeComparison::~cmFileTimeComparison() +{ + delete m_Internals; +} + +bool cmFileTimeComparison::FileTimeCompare(const char* f1, const char* f2, int* result) +{ + return m_Internals->FileTimeCompare(f1, f2, result); +} + +int cmFileTimeComparisonInternal::Compare(cmFileTimeComparison_Type* s1, cmFileTimeComparison_Type* s2) +{ +#if !defined(_WIN32) || defined(__CYGWIN__) +# if KWSYS_STAT_HAS_ST_MTIM + // Compare using nanosecond resolution. + if(s1->st_mtim.tv_sec < s2->st_mtim.tv_sec) + { + return -1; + } + else if(s1->st_mtim.tv_sec > s2->st_mtim.tv_sec) + { + return 1; + } + else if(s1->st_mtim.tv_nsec < s2->st_mtim.tv_nsec) + { + return -1; + } + else if(s1->st_mtim.tv_nsec > s2->st_mtim.tv_nsec) + { + return 1; + } +# else + // Compare using 1 second resolution. + if(s1->st_mtime < s2->st_mtime) + { + return -1; + } + else if(s1->st_mtime > s2->st_mtime) + { + return 1; + } + return 0; +# endif +#else + return (int)CompareFileTime(s1, s2); +#endif +} + +bool cmFileTimeComparisonInternal::FileTimeCompare(const char* f1, const char* f2, int* result) +{ + // Default to same time. + *result = 0; + cmFileTimeComparison_Type s1; + if(!this->Stat(f1, &s1)) + { + return false; + } + cmFileTimeComparison_Type s2; + if(!this->Stat(f2, &s2)) + { + return false; + } + *result = this->Compare(&s1, &s2); + return true; +} + diff --git a/Source/cmFileTimeComparison.h b/Source/cmFileTimeComparison.h new file mode 100644 index 0000000..2fc243f --- /dev/null +++ b/Source/cmFileTimeComparison.h @@ -0,0 +1,50 @@ +/*========================================================================= + + Program: CMake - Cross-Platform Makefile Generator + Module: $RCSfile$ + Language: C++ + Date: $Date$ + Version: $Revision$ + + Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. + See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. + + This software is distributed WITHOUT ANY WARRANTY; without even + the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR + PURPOSE. See the above copyright notices for more information. + +=========================================================================*/ +#ifndef cmFileTimeComparison_h +#define cmFileTimeComparison_h + +#include "cmStandardIncludes.h" + +class cmFileTimeComparisonInternal; + +/** \class cmFileTimeComparison + * \brief Helper class for performing globbing searches. + * + * Finds all files that match a given globbing expression. + */ +class cmFileTimeComparison +{ +public: + cmFileTimeComparison(); + ~cmFileTimeComparison(); + + /** + * Compare file modification times. + * Return true for successful comparison and false for error. + * When true is returned, result has -1, 0, +1 for + * f1 older, same, or newer than f2. + */ + bool FileTimeCompare(const char* f1, const char* f2, int* result); + +protected: + + cmFileTimeComparisonInternal* m_Internals; +}; + + +#endif + diff --git a/bootstrap b/bootstrap index 7e912ff..0070a5d 100755 --- a/bootstrap +++ b/bootstrap @@ -49,6 +49,7 @@ CMAKE_CXX_SOURCES="\ cmLocalGenerator \ cmSourceFile \ cmSystemTools \ + cmFileTimeComparison \ cmGlobalUnixMakefileGenerator3 \ cmGlobalXCodeGenerator \ cmLocalXCodeGenerator \ -- cgit v0.12