From a87f82e0258148f3047a3487c832a569dd841e09 Mon Sep 17 00:00:00 2001 From: Sebastian Holtermann Date: Thu, 16 Nov 2017 15:17:14 +0100 Subject: Autogen: Switch to use custom commands for RCC Instead of processing all `rcc` invocation requests in the _autogen target that calls `cmake -E cmake_autogen ...` once, use a dedicated custom command that calls `cmake -E cmake_autorcc ...` for each `.qrc` file. This allows parallel `.qrc` file processing and reduces the workload (and complexity) in the _autogen target. If only `AUTORCC` is enabled, the _autogen target won't be created at all since it is now used for `AUTOMOC` and `AUTOUIC` only. For `.qrc` files that are GENERATED a custom target is used instead of a custom command. Closes #17161 --- Modules/AutoRccInfo.cmake.in | 11 + Source/cmQtAutoGenDigest.h | 2 + Source/cmQtAutoGeneratorInitializer.cxx | 527 +++++++++++++++++++------------- 3 files changed, 331 insertions(+), 209 deletions(-) create mode 100644 Modules/AutoRccInfo.cmake.in diff --git a/Modules/AutoRccInfo.cmake.in b/Modules/AutoRccInfo.cmake.in new file mode 100644 index 0000000..7b13b9e --- /dev/null +++ b/Modules/AutoRccInfo.cmake.in @@ -0,0 +1,11 @@ +# Meta +set(ARCC_MULTI_CONFIG @_multi_config@) +# Directories and files +set(ARCC_CMAKE_BINARY_DIR "@CMAKE_BINARY_DIR@/") +set(ARCC_CMAKE_SOURCE_DIR "@CMAKE_SOURCE_DIR@/") +set(ARCC_CMAKE_CURRENT_SOURCE_DIR "@CMAKE_CURRENT_SOURCE_DIR@/") +set(ARCC_CMAKE_CURRENT_BINARY_DIR "@CMAKE_CURRENT_BINARY_DIR@/") +set(ARCC_BUILD_DIR @_build_dir@) +# Qt environment +set(ARCC_QT_VERSION_MAJOR @_qt_version_major@) +set(ARCC_QT_RCC_EXECUTABLE @_qt_rcc_executable@) diff --git a/Source/cmQtAutoGenDigest.h b/Source/cmQtAutoGenDigest.h index 677c397..9ee1117 100644 --- a/Source/cmQtAutoGenDigest.h +++ b/Source/cmQtAutoGenDigest.h @@ -24,6 +24,8 @@ public: std::string QrcFile; std::string QrcName; std::string PathChecksum; + std::string InfoFile; + std::string SettingsFile; std::string RccFile; bool Generated; bool Unique; diff --git a/Source/cmQtAutoGeneratorInitializer.cxx b/Source/cmQtAutoGeneratorInitializer.cxx index c7550e6..9477bc3 100644 --- a/Source/cmQtAutoGeneratorInitializer.cxx +++ b/Source/cmQtAutoGeneratorInitializer.cxx @@ -635,29 +635,6 @@ static std::string RccGetExecutable(cmGeneratorTarget const* target, return rccExec; } -static void SetupAutoTargetRcc(cmQtAutoGenDigest const& digest) -{ - std::vector rccFiles; - std::vector rccBuilds; - std::vector> rccOptions; - std::vector> rccInputs; - - for (cmQtAutoGenDigestQrc const& qrcDigest : digest.Qrcs) { - rccFiles.push_back(qrcDigest.QrcFile); - rccBuilds.push_back(qrcDigest.RccFile); - rccOptions.push_back(qrcDigest.Options); - rccInputs.push_back(qrcDigest.Resources); - } - - cmMakefile* makefile = digest.Target->Target->GetMakefile(); - AddDefinitionEscaped(makefile, "_qt_rcc_executable", - RccGetExecutable(digest.Target, digest.QtVersionMajor)); - AddDefinitionEscaped(makefile, "_rcc_files", rccFiles); - AddDefinitionEscaped(makefile, "_rcc_builds", rccBuilds); - AddDefinitionEscaped(makefile, "_rcc_options", rccOptions); - AddDefinitionEscaped(makefile, "_rcc_inputs", rccInputs); -} - void cmQtAutoGeneratorInitializer::InitializeAutogenTarget( cmQtAutoGenDigest& digest) { @@ -681,6 +658,24 @@ void cmQtAutoGeneratorInitializer::InitializeAutogenTarget( std::set autogenDependTargets; std::vector autogenProvides; + // Autogen target FOLDER property + std::string autogenFolder; + { + const char* folder = + makefile->GetState()->GetGlobalProperty("AUTOMOC_TARGETS_FOLDER"); + if (folder == nullptr) { + folder = + makefile->GetState()->GetGlobalProperty("AUTOGEN_TARGETS_FOLDER"); + } + // Inherit FOLDER property from target (#13688) + if (folder == nullptr) { + folder = SafeString(target->Target->GetProperty("FOLDER")); + } + if (folder != nullptr) { + autogenFolder = folder; + } + } + // Remove build directories on cleanup AddCleanFile(makefile, autogenBuildDir); // Remove old settings on cleanup @@ -699,45 +694,6 @@ void cmQtAutoGeneratorInitializer::InitializeAutogenTarget( } } - // Compose command lines - cmCustomCommandLines commandLines; - { - cmCustomCommandLine currentLine; - currentLine.push_back(cmSystemTools::GetCMakeCommand()); - currentLine.push_back("-E"); - currentLine.push_back("cmake_autogen"); - currentLine.push_back(autogenInfoDir); - currentLine.push_back("$"); - commandLines.push_back(currentLine); - } - - // Compose target comment - std::string autogenComment; - { - std::vector toolNames; - if (digest.MocEnabled) { - toolNames.emplace_back("MOC"); - } - if (digest.UicEnabled) { - toolNames.emplace_back("UIC"); - } - if (digest.RccEnabled) { - toolNames.emplace_back("RCC"); - } - - std::string tools = toolNames.front(); - toolNames.erase(toolNames.begin()); - if (!toolNames.empty()) { - while (toolNames.size() > 1) { - tools += ", "; - tools += toolNames.front(); - toolNames.erase(toolNames.begin()); - } - tools += " and " + toolNames.front(); - } - autogenComment = "Automatic " + tools + " for target " + target->GetName(); - } - // Add moc compilation to generated files list if (digest.MocEnabled) { std::string const mocsComp = autogenBuildDir + "/mocs_compilation.cpp"; @@ -921,18 +877,30 @@ void cmQtAutoGeneratorInitializer::InitializeAutogenTarget( } } } - // Path checksum + // Path checksum and file names { cmFilePathChecksum const fpathCheckSum(makefile); for (cmQtAutoGenDigestQrc& qrcDigest : digest.Qrcs) { qrcDigest.PathChecksum = fpathCheckSum.getPart(qrcDigest.QrcFile); // RCC output file name - std::string rccFile = autogenBuildDir + "/"; - rccFile += qrcDigest.PathChecksum; - rccFile += "/qrc_"; - rccFile += qrcDigest.QrcName; - rccFile += ".cpp"; - qrcDigest.RccFile = std::move(rccFile); + { + std::string rccFile = autogenBuildDir + "/"; + rccFile += qrcDigest.PathChecksum; + rccFile += "/qrc_"; + rccFile += qrcDigest.QrcName; + rccFile += ".cpp"; + qrcDigest.RccFile = std::move(rccFile); + } + { + std::string base = autogenInfoDir; + base += "/RCC"; + base += qrcDigest.QrcName; + if (!qrcDigest.Unique) { + base += qrcDigest.PathChecksum; + } + qrcDigest.InfoFile = base + "Info.cmake"; + qrcDigest.SettingsFile = base + "Settings.cmake"; + } } } // RCC options @@ -959,159 +927,239 @@ void cmQtAutoGeneratorInitializer::InitializeAutogenTarget( } for (cmQtAutoGenDigestQrc& qrcDigest : digest.Qrcs) { // Register file at target + std::vector const ccOutput = AddGeneratedSource( + target, qrcDigest.RccFile, multiConfig, configsList, cmQtAutoGen::RCC); + + cmCustomCommandLines commandLines; { - auto files = AddGeneratedSource(target, qrcDigest.RccFile, multiConfig, - configsList, cmQtAutoGen::RCC); - for (std::string& file : files) { - autogenProvides.push_back(std::move(file)); - } + cmCustomCommandLine currentLine; + currentLine.push_back(cmSystemTools::GetCMakeCommand()); + currentLine.push_back("-E"); + currentLine.push_back("cmake_autorcc"); + currentLine.push_back(qrcDigest.InfoFile); + currentLine.push_back("$"); + commandLines.push_back(std::move(currentLine)); } - // Dependencies + std::string ccComment = "Automatic RCC for "; + ccComment += qrcDigest.QrcFile; + if (qrcDigest.Generated) { - // Add the GENERATED .qrc file to the dependencies - autogenDependFiles.insert(qrcDigest.QrcFile); + // Create custom rcc target + std::string ccName; + { + ccName = target->GetName(); + ccName += "_arcc_"; + ccName += qrcDigest.QrcName; + if (!qrcDigest.Unique) { + ccName += "_"; + ccName += qrcDigest.PathChecksum; + } + std::vector ccDepends; + // Add the .qrc file to the custom target dependencies + ccDepends.push_back(qrcDigest.QrcFile); + + cmTarget* autoRccTarget = makefile->AddUtilityCommand( + ccName, true, workingDirectory.c_str(), ccOutput, ccDepends, + commandLines, false, ccComment.c_str()); + // Create autogen generator target + localGen->AddGeneratorTarget( + new cmGeneratorTarget(autoRccTarget, localGen)); + + // Set FOLDER property in autogen target + if (!autogenFolder.empty()) { + autoRccTarget->SetProperty("FOLDER", autogenFolder.c_str()); + } + } + // Add autogen target to the origin target dependencies + target->Target->AddUtility(ccName, makefile); } else { - // Add the resource files to the dependencies + // Create custom rcc command { - std::string error; - if (cmQtAutoGen::RccListInputs(digest.QtVersionMajor, rcc, - qrcDigest.QrcFile, - qrcDigest.Resources, &error)) { - for (std::string const& fileName : qrcDigest.Resources) { - autogenDependFiles.insert(fileName); + std::vector ccByproducts; + std::vector ccDepends; + // Add the .qrc file to the custom command dependencies + ccDepends.push_back(qrcDigest.QrcFile); + + // Add the resource files to the dependencies + { + std::string error; + if (cmQtAutoGen::RccListInputs(digest.QtVersionMajor, rcc, + qrcDigest.QrcFile, + qrcDigest.Resources, &error)) { + for (std::string const& fileName : qrcDigest.Resources) { + // Add resource file to the custom command dependencies + ccDepends.push_back(fileName); + } + } else { + cmSystemTools::Error(error.c_str()); } - } else { - cmSystemTools::Error(error.c_str()); } + makefile->AddCustomCommandToOutput(ccOutput, ccByproducts, ccDepends, + /*main_dependency*/ std::string(), + commandLines, ccComment.c_str(), + workingDirectory.c_str()); } - // Run cmake again when .qrc file changes + // Reconfigure when .qrc file changes makefile->AddCMakeDependFile(qrcDigest.QrcFile); } } } - // Add user defined autogen target dependencies - { - std::string const deps = GetSafeProperty(target, "AUTOGEN_TARGET_DEPENDS"); - if (!deps.empty()) { - std::vector extraDeps; - cmSystemTools::ExpandListArgument(deps, extraDeps); - for (std::string const& depName : extraDeps) { - // Allow target and file dependencies - auto* depTarget = makefile->FindTargetToUse(depName); - if (depTarget != nullptr) { - autogenDependTargets.insert(depTarget); - } else { - autogenDependFiles.insert(depName); + // Create _autogen target + if (digest.MocEnabled || digest.UicEnabled) { + // Add user defined autogen target dependencies + { + std::string const deps = + GetSafeProperty(target, "AUTOGEN_TARGET_DEPENDS"); + if (!deps.empty()) { + std::vector extraDeps; + cmSystemTools::ExpandListArgument(deps, extraDeps); + for (std::string const& depName : extraDeps) { + // Allow target and file dependencies + auto* depTarget = makefile->FindTargetToUse(depName); + if (depTarget != nullptr) { + autogenDependTargets.insert(depTarget); + } else { + autogenDependFiles.insert(depName); + } } } } - } - // Use PRE_BUILD on demand - bool usePRE_BUILD = false; - if (globalGen->GetName().find("Visual Studio") != std::string::npos) { - // Under VS use a PRE_BUILD event instead of a separate target to - // reduce the number of targets loaded into the IDE. - // This also works around a VS 11 bug that may skip updating the target: - // https://connect.microsoft.com/VisualStudio/feedback/details/769495 - usePRE_BUILD = true; - } - // Disable PRE_BUILD in some cases - if (usePRE_BUILD) { - // Cannot use PRE_BUILD with file depends - if (!autogenDependFiles.empty()) { - usePRE_BUILD = false; + // Compose target comment + std::string autogenComment; + { + std::vector toolNames; + if (digest.MocEnabled) { + toolNames.emplace_back("MOC"); + } + if (digest.UicEnabled) { + toolNames.emplace_back("UIC"); + } + if (digest.RccEnabled) { + toolNames.emplace_back("RCC"); + } + + std::string tools = toolNames.front(); + toolNames.erase(toolNames.begin()); + if (!toolNames.empty()) { + while (toolNames.size() > 1) { + tools += ", "; + tools += toolNames.front(); + toolNames.erase(toolNames.begin()); + } + tools += " and " + toolNames.front(); + } + autogenComment = + "Automatic " + tools + " for target " + target->GetName(); } - } - // Create the autogen target/command - if (usePRE_BUILD) { - // Add additional autogen target dependencies to origin target - for (cmTarget* depTarget : autogenDependTargets) { - target->Target->AddUtility(depTarget->GetName(), makefile); + + // Compose command lines + cmCustomCommandLines commandLines; + { + cmCustomCommandLine currentLine; + currentLine.push_back(cmSystemTools::GetCMakeCommand()); + currentLine.push_back("-E"); + currentLine.push_back("cmake_autogen"); + currentLine.push_back(autogenInfoDir); + currentLine.push_back("$"); + commandLines.push_back(std::move(currentLine)); } - // Add the pre-build command directly to bypass the OBJECT_LIBRARY - // rejection in cmMakefile::AddCustomCommandToTarget because we know - // PRE_BUILD will work for an OBJECT_LIBRARY in this specific case. - // - // PRE_BUILD does not support file dependencies! - const std::vector no_output; - const std::vector no_deps; - cmCustomCommand cc(makefile, no_output, autogenProvides, no_deps, - commandLines, autogenComment.c_str(), - workingDirectory.c_str()); - cc.SetEscapeOldStyle(false); - cc.SetEscapeAllowMakeVars(true); - target->Target->AddPreBuildCommand(cc); - } else { + // Use PRE_BUILD on demand + bool usePRE_BUILD = false; + if (globalGen->GetName().find("Visual Studio") != std::string::npos) { + // Under VS use a PRE_BUILD event instead of a separate target to + // reduce the number of targets loaded into the IDE. + // This also works around a VS 11 bug that may skip updating the target: + // https://connect.microsoft.com/VisualStudio/feedback/details/769495 + usePRE_BUILD = true; + } + // Disable PRE_BUILD in some cases + if (usePRE_BUILD) { + // Cannot use PRE_BUILD with file depends + if (!autogenDependFiles.empty()) { + usePRE_BUILD = false; + } + } + // Create the autogen target/command + if (usePRE_BUILD) { + // Add additional autogen target dependencies to origin target + for (cmTarget* depTarget : autogenDependTargets) { + target->Target->AddUtility(depTarget->GetName(), makefile); + } - // Convert file dependencies std::set to std::vector - std::vector autogenDepends(autogenDependFiles.begin(), - autogenDependFiles.end()); + // Add the pre-build command directly to bypass the OBJECT_LIBRARY + // rejection in cmMakefile::AddCustomCommandToTarget because we know + // PRE_BUILD will work for an OBJECT_LIBRARY in this specific case. + // + // PRE_BUILD does not support file dependencies! + const std::vector no_output; + const std::vector no_deps; + cmCustomCommand cc(makefile, no_output, autogenProvides, no_deps, + commandLines, autogenComment.c_str(), + workingDirectory.c_str()); + cc.SetEscapeOldStyle(false); + cc.SetEscapeAllowMakeVars(true); + target->Target->AddPreBuildCommand(cc); + } else { - // Add link library target dependencies to the autogen target dependencies - for (std::string const& config : configsList) { - cmLinkImplementationLibraries const* libs = - target->GetLinkImplementationLibraries(config); - if (libs != nullptr) { - for (cmLinkItem const& item : libs->Libraries) { - cmGeneratorTarget const* libTarget = item.Target; - if ((libTarget != nullptr) && - !StaticLibraryCycle(target, libTarget, config)) { - std::string util; - if (configsList.size() > 1) { - util += "$<$GetName(); - if (configsList.size() > 1) { - util += ">"; + // Convert file dependencies std::set to std::vector + std::vector autogenDepends(autogenDependFiles.begin(), + autogenDependFiles.end()); + + // Add link library target dependencies to the autogen target + // dependencies + for (std::string const& config : configsList) { + cmLinkImplementationLibraries const* libs = + target->GetLinkImplementationLibraries(config); + if (libs != nullptr) { + for (cmLinkItem const& item : libs->Libraries) { + cmGeneratorTarget const* libTarget = item.Target; + if ((libTarget != nullptr) && + !StaticLibraryCycle(target, libTarget, config)) { + std::string util; + if (configsList.size() > 1) { + util += "$<$GetName(); + if (configsList.size() > 1) { + util += ">"; + } + autogenDepends.push_back(util); } - autogenDepends.push_back(util); } } } - } - // Create autogen target - cmTarget* autogenTarget = makefile->AddUtilityCommand( - autogenTargetName, true, workingDirectory.c_str(), - /*byproducts=*/autogenProvides, autogenDepends, commandLines, false, - autogenComment.c_str()); - // Create autogen generator target - localGen->AddGeneratorTarget( - new cmGeneratorTarget(autogenTarget, localGen)); - - // Forward origin utilities to autogen target - for (std::string const& depName : target->Target->GetUtilities()) { - autogenTarget->AddUtility(depName, makefile); - } - // Add additional autogen target dependencies to autogen target - for (cmTarget* depTarget : autogenDependTargets) { - autogenTarget->AddUtility(depTarget->GetName(), makefile); - } - - // Set FOLDER property in autogen target - { - const char* autogenFolder = - makefile->GetState()->GetGlobalProperty("AUTOMOC_TARGETS_FOLDER"); - if (autogenFolder == nullptr) { - autogenFolder = - makefile->GetState()->GetGlobalProperty("AUTOGEN_TARGETS_FOLDER"); + // Create autogen target + cmTarget* autogenTarget = makefile->AddUtilityCommand( + autogenTargetName, true, workingDirectory.c_str(), + /*byproducts=*/autogenProvides, autogenDepends, commandLines, false, + autogenComment.c_str()); + // Create autogen generator target + localGen->AddGeneratorTarget( + new cmGeneratorTarget(autogenTarget, localGen)); + + // Forward origin utilities to autogen target + for (std::string const& depName : target->Target->GetUtilities()) { + autogenTarget->AddUtility(depName, makefile); } - // Inherit FOLDER property from target (#13688) - if (autogenFolder == nullptr) { - autogenFolder = SafeString(target->Target->GetProperty("FOLDER")); + // Add additional autogen target dependencies to autogen target + for (cmTarget* depTarget : autogenDependTargets) { + autogenTarget->AddUtility(depTarget->GetName(), makefile); } - if ((autogenFolder != nullptr) && (*autogenFolder != '\0')) { - autogenTarget->SetProperty("FOLDER", autogenFolder); + + // Set FOLDER property in autogen target + if (!autogenFolder.empty()) { + autogenTarget->SetProperty("FOLDER", autogenFolder.c_str()); } - } - // Add autogen target to the origin target dependencies - target->Target->AddUtility(autogenTargetName, makefile); + // Add autogen target to the origin target dependencies + target->Target->AddUtility(autogenTargetName, makefile); + } } } @@ -1164,18 +1212,36 @@ void cmQtAutoGeneratorInitializer::SetupAutoGenerateTarget( } } if (digest.RccEnabled) { - SetupAutoTargetRcc(digest); + AddDefinitionEscaped( + makefile, "_qt_rcc_executable", + RccGetExecutable(digest.Target, digest.QtVersionMajor)); } } - // Generate info file - { - std::string const infoDir = GetAutogenTargetFilesDir(target); - if (!cmSystemTools::MakeDirectory(infoDir)) { - std::string emsg = ("Could not create directory: "); - emsg += cmQtAutoGen::Quoted(infoDir); - cmSystemTools::Error(emsg.c_str()); + // Create info directory on demand + std::string const infoDir = GetAutogenTargetFilesDir(target); + if (!cmSystemTools::MakeDirectory(infoDir)) { + std::string emsg = ("Could not create directory: "); + emsg += cmQtAutoGen::Quoted(infoDir); + cmSystemTools::Error(emsg.c_str()); + } + + auto AdjustFilePermissions = [](std::string const& fileName) { + // Ensure we have write permission + mode_t perm = 0; +#if defined(_WIN32) && !defined(__CYGWIN__) + mode_t mode_write = S_IWRITE; +#else + mode_t mode_write = S_IWUSR; +#endif + cmSystemTools::GetPermissions(fileName, perm); + if (!(perm & mode_write)) { + cmSystemTools::SetPermissions(fileName, perm | mode_write); } + }; + + // Generate autogen target info file + { std::string const infoFile = infoDir + "/AutogenInfo.cmake"; { std::string infoFileIn = cmSystemTools::GetCMakeRoot(); @@ -1188,16 +1254,7 @@ void cmQtAutoGeneratorInitializer::SetupAutoGenerateTarget( // -------------------------------------- // Ensure we have write permission in case .in was read-only. - mode_t perm = 0; -#if defined(_WIN32) && !defined(__CYGWIN__) - mode_t mode_write = S_IWRITE; -#else - mode_t mode_write = S_IWUSR; -#endif - cmSystemTools::GetPermissions(infoFile, perm); - if (!(perm & mode_write)) { - cmSystemTools::SetPermissions(infoFile, perm | mode_write); - } + AdjustFilePermissions(infoFile); // Open and write file cmsys::ofstream ofs(infoFile.c_str(), std::ios::app); @@ -1222,4 +1279,56 @@ void cmQtAutoGeneratorInitializer::SetupAutoGenerateTarget( cmSystemTools::Error(error.c_str()); } } + + // Generate auto RCC info files + { + std::string infoFileIn = cmSystemTools::GetCMakeRoot(); + infoFileIn += "/Modules/AutoRccInfo.cmake.in"; + for (cmQtAutoGenDigestQrc const& qrcDigest : digest.Qrcs) { + // Configure info file + makefile->ConfigureFile(infoFileIn.c_str(), qrcDigest.InfoFile.c_str(), + false, true, false); + + // Append custom definitions to info file + // -------------------------------------- + + // Ensure we have write permission in case .in was read-only. + AdjustFilePermissions(qrcDigest.InfoFile); + + // Open and write file + cmsys::ofstream ofs(qrcDigest.InfoFile.c_str(), std::ios::app); + if (ofs) { + { + ofs << "# Configurations options\n"; + auto OfsWriteMap = [&ofs]( + const char* key, std::map const& map) { + for (auto const& item : map) { + ofs << "set(" << key << "_" << item.first << " " + << cmOutputConverter::EscapeForCMake(item.second) << ")\n"; + } + }; + OfsWriteMap("ARCC_CONFIG_SUFFIX", configSuffixes); + } + { + ofs << "# Job\n"; + auto OfsWrite = [&ofs](const char* key, std::string const& value) { + ofs << "set(" << key << " " + << cmOutputConverter::EscapeForCMake(value) << ")\n"; + + }; + OfsWrite("ARCC_SETTINGS_FILE", qrcDigest.SettingsFile); + OfsWrite("ARCC_SOURCE", qrcDigest.QrcFile); + OfsWrite("ARCC_OUTPUT", qrcDigest.RccFile); + OfsWrite("ARCC_OPTIONS", cmJoin(qrcDigest.Options, ";")); + OfsWrite("ARCC_INPUTS", cmJoin(qrcDigest.Resources, ";")); + } + } else { + // File open error + std::string error = "Internal CMake error when trying to open file: "; + error += cmQtAutoGen::Quoted(qrcDigest.InfoFile); + error += " for writing."; + cmSystemTools::Error(error.c_str()); + } + } + } } -- cgit v0.12 682' href='#n682'>682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 
/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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Permission to use, copy, modify, and distribute this software and its
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While CWI is the initial source for this software, a modified version
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/* Python interpreter top-level routines, including init/exit */

#include "Python.h"

#include "grammar.h"
#include "node.h"
#include "parsetok.h"
#include "errcode.h"
#include "compile.h"
#include "eval.h"
#include "marshal.h"

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif

#ifdef MS_WIN32
#undef BYTE
#include "windows.h"
#endif

extern char *Py_GetPath();

extern grammar _PyParser_Grammar; /* From graminit.c */

/* Forward */
static void initmain Py_PROTO((void));
static void initsite Py_PROTO((void));
static PyObject *run_err_node Py_PROTO((node *n, char *filename,
				   PyObject *globals, PyObject *locals));
static PyObject *run_node Py_PROTO((node *n, char *filename,
			       PyObject *globals, PyObject *locals));
static PyObject *run_pyc_file Py_PROTO((FILE *fp, char *filename,
				   PyObject *globals, PyObject *locals));
static void err_input Py_PROTO((perrdetail *));
static void initsigs Py_PROTO((void));
static void call_sys_exitfunc Py_PROTO((void));
static void call_ll_exitfuncs Py_PROTO((void));

#ifdef Py_TRACE_REFS
int _Py_AskYesNo(char *prompt);
#endif

int Py_DebugFlag; /* Needed by parser.c */
int Py_VerboseFlag; /* Needed by import.c */
int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */
int Py_NoSiteFlag; /* Suppress 'import site' */
int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c */
int Py_FrozenFlag; /* Needed by getpath.c */

static int initialized = 0;

/* API to access the initialized flag -- useful for eroteric use */

int
Py_IsInitialized()
{
	return initialized;
}

/* Global initializations.  Can be undone by Py_Finalize().  Don't
   call this twice without an intervening Py_Finalize() call.  When
   initializations fail, a fatal error is issued and the function does
   not return.  On return, the first thread and interpreter state have
   been created.

   Locking: you must hold the interpreter lock while calling this.
   (If the lock has not yet been initialized, that's equivalent to
   having the lock, but you cannot use multiple threads.)

*/

void
Py_Initialize()
{
	PyInterpreterState *interp;
	PyThreadState *tstate;
	PyObject *bimod, *sysmod;
	char *p;

	if (initialized)
		return;
	initialized = 1;
	
	if ((p = getenv("PYTHONDEBUG")) && *p != '\0')
		Py_DebugFlag = 1;
	if ((p = getenv("PYTHONVERBOSE")) && *p != '\0')
		Py_VerboseFlag = 1;
	if ((p = getenv("PYTHONOPTIMIZE")) && *p != '\0')
		Py_OptimizeFlag = 1;

	interp = PyInterpreterState_New();
	if (interp == NULL)
		Py_FatalError("Py_Initialize: can't make first interpreter");

	tstate = PyThreadState_New(interp);
	if (tstate == NULL)
		Py_FatalError("Py_Initialize: can't make first thread");
	(void) PyThreadState_Swap(tstate);

	interp->modules = PyDict_New();
	if (interp->modules == NULL)
		Py_FatalError("Py_Initialize: can't make modules dictionary");

	bimod = _PyBuiltin_Init_1();
	if (bimod == NULL)
		Py_FatalError("Py_Initialize: can't initialize __builtin__");
	interp->builtins = PyModule_GetDict(bimod);
	Py_INCREF(interp->builtins);

	sysmod = _PySys_Init();
	if (sysmod == NULL)
		Py_FatalError("Py_Initialize: can't initialize sys");
	interp->sysdict = PyModule_GetDict(sysmod);
	Py_INCREF(interp->sysdict);
	_PyImport_FixupExtension("sys", "sys");
	PySys_SetPath(Py_GetPath());
	PyDict_SetItemString(interp->sysdict, "modules",
			     interp->modules);

	_PyImport_Init();

	/* phase 2 of builtins */
	_PyBuiltin_Init_2(interp->builtins);
	_PyImport_FixupExtension("__builtin__", "__builtin__");

	initsigs(); /* Signal handling stuff, including initintr() */

	initmain(); /* Module __main__ */
	if (!Py_NoSiteFlag)
		initsite(); /* Module site */
}

#ifdef COUNT_ALLOCS
extern void dump_counts Py_PROTO((void));
#endif

/* Undo the effect of Py_Initialize().

   Beware: if multiple interpreter and/or thread states exist, these
   are not wiped out; only the current thread and interpreter state
   are deleted.  But since everything else is deleted, those other
   interpreter and thread states should no longer be used.

   (XXX We should do better, e.g. wipe out all interpreters and
   threads.)

   Locking: as above.

*/

void
Py_Finalize()
{
	PyInterpreterState *interp;
	PyThreadState *tstate;

	if (!initialized)
		return;
	initialized = 0;

	call_sys_exitfunc();

	/* Get current thread state and interpreter pointer */
	tstate = PyThreadState_Get();
	interp = tstate->interp;

	/* Disable signal handling */
	PyOS_FiniInterrupts();

	/* Destroy PyExc_MemoryErrorInst */
	_PyBuiltin_Fini_1();

	/* Destroy all modules */
	PyImport_Cleanup();

	/* Destroy the database used by _PyImport_{Fixup,Find}Extension */
	_PyImport_Fini();

	/* Debugging stuff */
#ifdef COUNT_ALLOCS
	dump_counts();
#endif

#ifdef Py_REF_DEBUG
	fprintf(stderr, "[%ld refs]\n", _Py_RefTotal);
#endif

#ifdef Py_TRACE_REFS
	if (_Py_AskYesNo("Print left references?")) {
		_Py_PrintReferences(stderr);
	}
#endif /* Py_TRACE_REFS */

	/* Delete current thread */
	PyInterpreterState_Clear(interp);
	PyThreadState_Swap(NULL);
	PyInterpreterState_Delete(interp);

	/* Now we decref the exception classes.  After this point nothing
	   can raise an exception.  That's okay, because each Fini() method
	   below has been checked to make sure no exceptions are ever
	   raised.
	*/
	_PyBuiltin_Fini_2();
	PyMethod_Fini();
	PyFrame_Fini();
	PyCFunction_Fini();
	PyTuple_Fini();
	PyString_Fini();
	PyInt_Fini();
	PyFloat_Fini();

	/* XXX Still allocated:
	   - various static ad-hoc pointers to interned strings
	   - int and float free list blocks
	   - whatever various modules and libraries allocate
	*/

	PyGrammar_RemoveAccelerators(&_PyParser_Grammar);

	call_ll_exitfuncs();

#ifdef Py_TRACE_REFS
	_Py_ResetReferences();
#endif /* Py_TRACE_REFS */
}

/* Create and initialize a new interpreter and thread, and return the
   new thread.  This requires that Py_Initialize() has been called
   first.

   Unsuccessful initialization yields a NULL pointer.  Note that *no*
   exception information is available even in this case -- the
   exception information is held in the thread, and there is no
   thread.

   Locking: as above.

*/

PyThreadState *
Py_NewInterpreter()
{
	PyInterpreterState *interp;
	PyThreadState *tstate, *save_tstate;
	PyObject *bimod, *sysmod;

	if (!initialized)
		Py_FatalError("Py_NewInterpreter: call Py_Initialize first");

	interp = PyInterpreterState_New();
	if (interp == NULL)
		return NULL;

	tstate = PyThreadState_New(interp);
	if (tstate == NULL) {
		PyInterpreterState_Delete(interp);
		return NULL;
	}

	save_tstate = PyThreadState_Swap(tstate);

	/* XXX The following is lax in error checking */

	interp->modules = PyDict_New();

	bimod = _PyImport_FindExtension("__builtin__", "__builtin__");
	if (bimod != NULL) {
		interp->builtins = PyModule_GetDict(bimod);
		Py_INCREF(interp->builtins);
	}
	sysmod = _PyImport_FindExtension("sys", "sys");
	if (bimod != NULL && sysmod != NULL) {
		interp->sysdict = PyModule_GetDict(sysmod);
		Py_INCREF(interp->sysdict);
		PySys_SetPath(Py_GetPath());
		PyDict_SetItemString(interp->sysdict, "modules",
				     interp->modules);
		initmain();
		if (!Py_NoSiteFlag)
			initsite();
	}

	if (!PyErr_Occurred())
		return tstate;

	/* Oops, it didn't work.  Undo it all. */

	PyErr_Print();
	PyThreadState_Clear(tstate);
	PyThreadState_Swap(save_tstate);
	PyThreadState_Delete(tstate);
	PyInterpreterState_Delete(interp);

	return NULL;
}

/* Delete an interpreter and its last thread.  This requires that the
   given thread state is current, that the thread has no remaining
   frames, and that it is its interpreter's only remaining thread.
   It is a fatal error to violate these constraints.

   (Py_Finalize() doesn't have these constraints -- it zaps
   everything, regardless.)

   Locking: as above.

*/

void
Py_EndInterpreter(tstate)
	PyThreadState *tstate;
{
	PyInterpreterState *interp = tstate->interp;

	if (tstate != PyThreadState_Get())
		Py_FatalError("Py_EndInterpreter: thread is not current");
	if (tstate->frame != NULL)
		Py_FatalError("Py_EndInterpreter: thread still has a frame");
	if (tstate != interp->tstate_head || tstate->next != NULL)
		Py_FatalError("Py_EndInterpreter: not the last thread");

	PyImport_Cleanup();
	PyInterpreterState_Clear(interp);
	PyThreadState_Swap(NULL);
	PyInterpreterState_Delete(interp);
}

static char *progname = "python";

void
Py_SetProgramName(pn)
	char *pn;
{
	if (pn && *pn)
		progname = pn;
}

char *
Py_GetProgramName()
{
	return progname;
}

static char *default_home = NULL;

void
Py_SetPythonHome(home)
	char *home;
{
	default_home = home;
}

char *
Py_GetPythonHome()
{
	char *home = default_home;
	if (home == NULL)
		home = getenv("PYTHONHOME");
	return home;
}

/* Create __main__ module */

static void
initmain()
{
	PyObject *m, *d;
	m = PyImport_AddModule("__main__");
	if (m == NULL)
		Py_FatalError("can't create __main__ module");
	d = PyModule_GetDict(m);
	if (PyDict_GetItemString(d, "__builtins__") == NULL) {
		PyObject *bimod = PyImport_ImportModule("__builtin__");
		if (bimod == NULL ||
		    PyDict_SetItemString(d, "__builtins__", bimod) != 0)
			Py_FatalError("can't add __builtins__ to __main__");
		Py_DECREF(bimod);
	}
}

/* Import the site module (not into __main__ though) */

static void
initsite()
{
	PyObject *m, *f;
	m = PyImport_ImportModule("site");
	if (m == NULL) {
		f = PySys_GetObject("stderr");
		if (Py_VerboseFlag) {
			PyFile_WriteString(
				"'import site' failed; traceback:\n", f);
			PyErr_Print();
		}
		else {
			PyFile_WriteString(
			  "'import site' failed; use -v for traceback\n", f);
			PyErr_Clear();
		}
	}
	else {
		Py_DECREF(m);
	}
}

/* Parse input from a file and execute it */

int
PyRun_AnyFile(fp, filename)
	FILE *fp;
	char *filename;
{
	if (filename == NULL)
		filename = "???";
	if (Py_FdIsInteractive(fp, filename))
		return PyRun_InteractiveLoop(fp, filename);
	else
		return PyRun_SimpleFile(fp, filename);
}

int
PyRun_InteractiveLoop(fp, filename)
	FILE *fp;
	char *filename;
{
	PyObject *v;
	int ret;
	v = PySys_GetObject("ps1");
	if (v == NULL) {
		PySys_SetObject("ps1", v = PyString_FromString(">>> "));
		Py_XDECREF(v);
	}
	v = PySys_GetObject("ps2");
	if (v == NULL) {
		PySys_SetObject("ps2", v = PyString_FromString("... "));
		Py_XDECREF(v);
	}
	for (;;) {
		ret = PyRun_InteractiveOne(fp, filename);
#ifdef Py_REF_DEBUG
		fprintf(stderr, "[%ld refs]\n", _Py_RefTotal);
#endif
		if (ret == E_EOF)
			return 0;
		/*
		if (ret == E_NOMEM)
			return -1;
		*/
	}
}

int
PyRun_InteractiveOne(fp, filename)
	FILE *fp;
	char *filename;
{
	PyObject *m, *d, *v, *w;
	node *n;
	perrdetail err;
	char *ps1 = "", *ps2 = "";
	v = PySys_GetObject("ps1");
	if (v != NULL) {
		v = PyObject_Str(v);
		if (v == NULL)
			PyErr_Clear();
		else if (PyString_Check(v))
			ps1 = PyString_AsString(v);
	}
	w = PySys_GetObject("ps2");
	if (w != NULL) {
		w = PyObject_Str(w);
		if (w == NULL)
			PyErr_Clear();
		else if (PyString_Check(w))
			ps2 = PyString_AsString(w);
	}
	n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar,
			       Py_single_input, ps1, ps2, &err);
	Py_XDECREF(v);
	Py_XDECREF(w);
	if (n == NULL) {
		if (err.error == E_EOF) {
			if (err.text)
				free(err.text);
			return E_EOF;
		}
		err_input(&err);
		PyErr_Print();
		return err.error;
	}
	m = PyImport_AddModule("__main__");
	if (m == NULL)
		return -1;
	d = PyModule_GetDict(m);
	v = run_node(n, filename, d, d);
	if (v == NULL) {
		PyErr_Print();
		return -1;
	}
	Py_DECREF(v);
	if (Py_FlushLine())
		PyErr_Clear();
	return 0;
}

int
PyRun_SimpleFile(fp, filename)
	FILE *fp;
	char *filename;
{
	PyObject *m, *d, *v;
	char *ext;

	m = PyImport_AddModule("__main__");
	if (m == NULL)
		return -1;
	d = PyModule_GetDict(m);
	ext = filename + strlen(filename) - 4;
	if (strcmp(ext, ".pyc") == 0 || strcmp(ext, ".pyo") == 0
#ifdef macintosh
	/* On a mac, we also assume a pyc file for types 'PYC ' and 'APPL' */
	    || getfiletype(filename) == 'PYC '
	    || getfiletype(filename) == 'APPL'
#endif /* macintosh */
		) {
		/* Try to run a pyc file. First, re-open in binary */
		/* Don't close, done in main: fclose(fp); */
		if( (fp = fopen(filename, "rb")) == NULL ) {
			fprintf(stderr, "python: Can't reopen .pyc file\n");
			return -1;
		}
		/* Turn on optimization if a .pyo file is given */
		if (strcmp(ext, ".pyo") == 0)
			Py_OptimizeFlag = 1;
		v = run_pyc_file(fp, filename, d, d);
	} else {
		v = PyRun_File(fp, filename, Py_file_input, d, d);
	}
	if (v == NULL) {
		PyErr_Print();
		return -1;
	}
	Py_DECREF(v);
	if (Py_FlushLine())
		PyErr_Clear();
	return 0;
}

int
PyRun_SimpleString(command)
	char *command;
{
	PyObject *m, *d, *v;
	m = PyImport_AddModule("__main__");
	if (m == NULL)
		return -1;
	d = PyModule_GetDict(m);
	v = PyRun_String(command, Py_file_input, d, d);
	if (v == NULL) {
		PyErr_Print();
		return -1;
	}
	Py_DECREF(v);
	if (Py_FlushLine())
		PyErr_Clear();
	return 0;
}

static int
parse_syntax_error(err, message, filename, lineno, offset, text)
     PyObject* err;
     PyObject** message;
     char** filename;
     int* lineno;
     int* offset;
     char** text;
{
	long hold;
	PyObject *v;

	/* old style errors */
	if (PyTuple_Check(err))
		return PyArg_Parse(err, "(O(ziiz))", message, filename,
				   lineno, offset, text);

	/* new style errors.  `err' is an instance */

	if (! (v = PyObject_GetAttrString(err, "msg")))
		goto finally;
	*message = v;

	if (!(v = PyObject_GetAttrString(err, "filename")))
		goto finally;
	if (v == Py_None)
		*filename = NULL;
	else if (! (*filename = PyString_AsString(v)))
		goto finally;

	Py_DECREF(v);
	if (!(v = PyObject_GetAttrString(err, "lineno")))
		goto finally;
	hold = PyInt_AsLong(v);
	Py_DECREF(v);
	v = NULL;
	if (hold < 0 && PyErr_Occurred())
		goto finally;
	*lineno = (int)hold;

	if (!(v = PyObject_GetAttrString(err, "offset")))
		goto finally;
	hold = PyInt_AsLong(v);
	Py_DECREF(v);
	v = NULL;
	if (hold < 0 && PyErr_Occurred())
		goto finally;
	*offset = (int)hold;

	if (!(v = PyObject_GetAttrString(err, "text")))
		goto finally;
	if (v == Py_None)
		*text = NULL;
	else if (! (*text = PyString_AsString(v)))
		goto finally;
	Py_DECREF(v);
	return 1;

finally:
	Py_XDECREF(v);
	return 0;
}

void
PyErr_Print()
{
	PyErr_PrintEx(1);
}

void
PyErr_PrintEx(set_sys_last_vars)
	int set_sys_last_vars;
{
	int err = 0;
	PyObject *exception, *v, *tb, *f;
	PyErr_Fetch(&exception, &v, &tb);
	PyErr_NormalizeException(&exception, &v, &tb);

	if (exception == NULL)
		return;

	if (PyErr_GivenExceptionMatches(exception, PyExc_SystemExit)) {
		if (Py_FlushLine())
			PyErr_Clear();
		fflush(stdout);
		if (v == NULL || v == Py_None)
			Py_Exit(0);
		if (PyInstance_Check(v)) {
			/* we expect the error code to be store in the
			   `code' attribute
			*/
			PyObject *code = PyObject_GetAttrString(v, "code");
			if (code) {
				Py_DECREF(v);
				v = code;
				if (v == Py_None)
					Py_Exit(0);
			}
			/* if we failed to dig out the "code" attribute,
			   then just let the else clause below print the
			   error
			*/
		}
		if (PyInt_Check(v))
			Py_Exit((int)PyInt_AsLong(v));
		else {
			/* OK to use real stderr here */
			PyObject_Print(v, stderr, Py_PRINT_RAW);
			fprintf(stderr, "\n");
			Py_Exit(1);
		}
	}
	if (set_sys_last_vars) {
		PySys_SetObject("last_type", exception);
		PySys_SetObject("last_value", v);
		PySys_SetObject("last_traceback", tb);
	}
	f = PySys_GetObject("stderr");
	if (f == NULL)
		fprintf(stderr, "lost sys.stderr\n");
	else {
		if (Py_FlushLine())
			PyErr_Clear();
		fflush(stdout);
		err = PyTraceBack_Print(tb, f);
		if (err == 0 &&
		    PyErr_GivenExceptionMatches(exception, PyExc_SyntaxError))
		{
			PyObject *message;
			char *filename, *text;
			int lineno, offset;
			if (!parse_syntax_error(v, &message, &filename,
						&lineno, &offset, &text))
				PyErr_Clear();
			else {
				char buf[10];
				PyFile_WriteString("  File \"", f);
				if (filename == NULL)
					PyFile_WriteString("<string>", f);
				else
					PyFile_WriteString(filename, f);
				PyFile_WriteString("\", line ", f);
				sprintf(buf, "%d", lineno);
				PyFile_WriteString(buf, f);
				PyFile_WriteString("\n", f);
				if (text != NULL) {
					char *nl;
					if (offset > 0 &&
					    offset == (int)strlen(text))
						offset--;
					for (;;) {
						nl = strchr(text, '\n');
						if (nl == NULL ||
						    nl-text >= offset)
							break;
						offset -= (nl+1-text);
						text = nl+1;
					}
					while (*text == ' ' || *text == '\t') {
						text++;
						offset--;
					}
					PyFile_WriteString("    ", f);
					PyFile_WriteString(text, f);
					if (*text == '\0' ||
					    text[strlen(text)-1] != '\n')
						PyFile_WriteString("\n", f);
					PyFile_WriteString("    ", f);
					offset--;
					while (offset > 0) {
						PyFile_WriteString(" ", f);
						offset--;
					}
					PyFile_WriteString("^\n", f);
				}
				Py_INCREF(message);
				Py_DECREF(v);
				v = message;
				/* Can't be bothered to check all those
				   PyFile_WriteString() calls */
				if (PyErr_Occurred())
					err = -1;
			}
		}
		if (err) {
			/* Don't do anything else */
		}
		else if (PyClass_Check(exception)) {
			PyClassObject* exc = (PyClassObject*)exception;
			PyObject* className = exc->cl_name;
			PyObject* moduleName =
			      PyDict_GetItemString(exc->cl_dict, "__module__");

			if (moduleName == NULL)
				err = PyFile_WriteString("<unknown>", f);
			else {
				char* modstr = PyString_AsString(moduleName);
				if (modstr && strcmp(modstr, "exceptions")) 
				{
					err = PyFile_WriteString(modstr, f);
					err += PyFile_WriteString(".", f);
				}
			}
			if (err == 0) {
				if (className == NULL)
				      err = PyFile_WriteString("<unknown>", f);
				else
				      err = PyFile_WriteObject(className, f,
							       Py_PRINT_RAW);
			}
		}
		else
			err = PyFile_WriteObject(exception, f, Py_PRINT_RAW);
		if (err == 0) {
			if (v != NULL && v != Py_None) {
				PyObject *s = PyObject_Str(v);
				/* only print colon if the str() of the
				   object is not the empty string
				*/
				if (s == NULL)
					err = -1;
				else if (!PyString_Check(s) ||
					 PyString_GET_SIZE(s) != 0)
					err = PyFile_WriteString(": ", f);
				if (err == 0)
				  err = PyFile_WriteObject(s, f, Py_PRINT_RAW);
				Py_XDECREF(s);
			}
		}
		if (err == 0)
			err = PyFile_WriteString("\n", f);
	}
	Py_XDECREF(exception);
	Py_XDECREF(v);
	Py_XDECREF(tb);
	/* If an error happened here, don't show it.
	   XXX This is wrong, but too many callers rely on this behavior. */
	if (err != 0)
		PyErr_Clear();
}

PyObject *
PyRun_String(str, start, globals, locals)
	char *str;
	int start;
	PyObject *globals, *locals;
{
	return run_err_node(PyParser_SimpleParseString(str, start),
			    "<string>", globals, locals);
}

PyObject *
PyRun_File(fp, filename, start, globals, locals)
	FILE *fp;
	char *filename;
	int start;
	PyObject *globals, *locals;
{
	return run_err_node(PyParser_SimpleParseFile(fp, filename, start),
			    filename, globals, locals);
}

static PyObject *
run_err_node(n, filename, globals, locals)
	node *n;
	char *filename;
	PyObject *globals, *locals;
{
	if (n == NULL)
		return  NULL;
	return run_node(n, filename, globals, locals);
}

static PyObject *
run_node(n, filename, globals, locals)
	node *n;
	char *filename;
	PyObject *globals, *locals;
{
	PyCodeObject *co;
	PyObject *v;
	co = PyNode_Compile(n, filename);
	PyNode_Free(n);
	if (co == NULL)
		return NULL;
	v = PyEval_EvalCode(co, globals, locals);
	Py_DECREF(co);
	return v;
}

static PyObject *
run_pyc_file(fp, filename, globals, locals)
	FILE *fp;
	char *filename;
	PyObject *globals, *locals;
{
	PyCodeObject *co;
	PyObject *v;
	long magic;
	long PyImport_GetMagicNumber();

	magic = PyMarshal_ReadLongFromFile(fp);
	if (magic != PyImport_GetMagicNumber()) {
		PyErr_SetString(PyExc_RuntimeError,
			   "Bad magic number in .pyc file");
		return NULL;
	}
	(void) PyMarshal_ReadLongFromFile(fp);
	v = PyMarshal_ReadObjectFromFile(fp);
	fclose(fp);
	if (v == NULL || !PyCode_Check(v)) {
		Py_XDECREF(v);
		PyErr_SetString(PyExc_RuntimeError,
			   "Bad code object in .pyc file");
		return NULL;
	}
	co = (PyCodeObject *)v;
	v = PyEval_EvalCode(co, globals, locals);
	Py_DECREF(co);
	return v;
}

PyObject *
Py_CompileString(str, filename, start)
	char *str;
	char *filename;
	int start;
{
	node *n;
	PyCodeObject *co;
	n = PyParser_SimpleParseString(str, start);
	if (n == NULL)
		return NULL;
	co = PyNode_Compile(n, filename);
	PyNode_Free(n);
	return (PyObject *)co;
}

/* Simplified interface to parsefile -- return node or set exception */

node *
PyParser_SimpleParseFile(fp, filename, start)
	FILE *fp;
	char *filename;
	int start;
{
	node *n;
	perrdetail err;
	n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, start,
				(char *)0, (char *)0, &err);
	if (n == NULL)
		err_input(&err);
	return n;
}

/* Simplified interface to parsestring -- return node or set exception */

node *
PyParser_SimpleParseString(str, start)
	char *str;
	int start;
{
	node *n;
	perrdetail err;
	n = PyParser_ParseString(str, &_PyParser_Grammar, start, &err);
	if (n == NULL)
		err_input(&err);
	return n;
}

/* Set the error appropriate to the given input error code (see errcode.h) */

static void
err_input(err)
	perrdetail *err;
{
	PyObject *v, *w;
	char *msg = NULL;
	v = Py_BuildValue("(ziiz)", err->filename,
			    err->lineno, err->offset, err->text);
	if (err->text != NULL) {
		free(err->text);
		err->text = NULL;
	}
	switch (err->error) {
	case E_SYNTAX:
		msg = "invalid syntax";
		break;
	case E_TOKEN:
		msg = "invalid token";
		break;
	case E_INTR:
		PyErr_SetNone(PyExc_KeyboardInterrupt);
		Py_XDECREF(v);
		return;
	case E_NOMEM:
		PyErr_NoMemory();
		Py_XDECREF(v);
		return;
	case E_EOF:
		msg = "unexpected EOF while parsing";
		break;
	case E_INDENT:
		msg = "inconsistent use of tabs and spaces in indentation";
		break;
	default:
		fprintf(stderr, "error=%d\n", err->error);
		msg = "unknown parsing error";
		break;
	}
	w = Py_BuildValue("(sO)", msg, v);
	Py_XDECREF(v);
	PyErr_SetObject(PyExc_SyntaxError, w);
	Py_XDECREF(w);
}

/* Print fatal error message and abort */

void
Py_FatalError(msg)
	char *msg;
{
	fprintf(stderr, "Fatal Python error: %s\n", msg);
#ifdef macintosh
	for (;;);
#endif
#ifdef MS_WIN32
	OutputDebugString("Fatal Python error: ");
	OutputDebugString(msg);
	OutputDebugString("\n");
#ifdef _DEBUG
	DebugBreak();
#endif
#endif /* MS_WIN32 */
	abort();
}

/* Clean up and exit */

#ifdef WITH_THREAD
#include "pythread.h"
int _PyThread_Started = 0; /* Set by threadmodule.c and maybe others */
#endif

#define NEXITFUNCS 32
static void (*exitfuncs[NEXITFUNCS])();
static int nexitfuncs = 0;

int Py_AtExit(func)
	void (*func) Py_PROTO((void));
{
	if (nexitfuncs >= NEXITFUNCS)
		return -1;
	exitfuncs[nexitfuncs++] = func;
	return 0;
}

static void
call_sys_exitfunc()
{
	PyObject *exitfunc = PySys_GetObject("exitfunc");

	if (exitfunc) {
		PyObject *res, *f;
		Py_INCREF(exitfunc);
		PySys_SetObject("exitfunc", (PyObject *)NULL);
		f = PySys_GetObject("stderr");
		res = PyEval_CallObject(exitfunc, (PyObject *)NULL);
		if (res == NULL) {
			if (f)
			    PyFile_WriteString("Error in sys.exitfunc:\n", f);
			PyErr_Print();
		}
		Py_DECREF(exitfunc);
	}

	if (Py_FlushLine())
		PyErr_Clear();
}

static void
call_ll_exitfuncs()
{
	while (nexitfuncs > 0)
		(*exitfuncs[--nexitfuncs])();

	fflush(stdout);
	fflush(stderr);
}

void
Py_Exit(sts)
	int sts;
{
	Py_Finalize();

#ifdef macintosh
	PyMac_Exit(sts);
#else
	exit(sts);
#endif
}

static void
initsigs()
{
#ifdef HAVE_SIGNAL_H
#ifdef SIGPIPE
	signal(SIGPIPE, SIG_IGN);
#endif
#endif /* HAVE_SIGNAL_H */
	PyOS_InitInterrupts(); /* May imply initsignal() */
}

#ifdef Py_TRACE_REFS
/* Ask a yes/no question */

int
_Py_AskYesNo(prompt)
	char *prompt;
{
	char buf[256];
	
	printf("%s [ny] ", prompt);
	if (fgets(buf, sizeof buf, stdin) == NULL)
		return 0;
	return buf[0] == 'y' || buf[0] == 'Y';
}
#endif

#ifdef MPW

/* Check for file descriptor connected to interactive device.
   Pretend that stdin is always interactive, other files never. */

int
isatty(fd)
	int fd;
{
	return fd == fileno(stdin);
}

#endif

/*
 * The file descriptor fd is considered ``interactive'' if either
 *   a) isatty(fd) is TRUE, or
 *   b) the -i flag was given, and the filename associated with
 *      the descriptor is NULL or "<stdin>" or "???".
 */
int
Py_FdIsInteractive(fp, filename)
	FILE *fp;
	char *filename;
{
	if (isatty((int)fileno(fp)))
		return 1;
	if (!Py_InteractiveFlag)
		return 0;
	return (filename == NULL) ||
	       (strcmp(filename, "<stdin>") == 0) ||
	       (strcmp(filename, "???") == 0);
}
generated by cgit v0.12 at 2026-01-20 06:34:06 (GMT)