diff options
Diffstat (limited to 'extern/libmv/third_party/gflags/gflags/gflags.h')
| -rw-r--r-- | extern/libmv/third_party/gflags/gflags/gflags.h | 180 |
1 files changed, 90 insertions, 90 deletions
diff --git a/extern/libmv/third_party/gflags/gflags/gflags.h b/extern/libmv/third_party/gflags/gflags/gflags.h index e69812c8c38..797a54cac52 100644 --- a/extern/libmv/third_party/gflags/gflags/gflags.h +++ b/extern/libmv/third_party/gflags/gflags/gflags.h @@ -75,21 +75,26 @@ // other thread is writing to the variable or calling non-const // methods of this class. -#ifndef BASE_COMMANDLINEFLAGS_H_ -#define BASE_COMMANDLINEFLAGS_H_ +#ifndef GFLAGS_GFLAGS_H_ +#define GFLAGS_GFLAGS_H_ #include <string> #include <vector> -#include "gflags_declare.h" // IWYU pragma: export -namespace google { -// -// NOTE: all functions below MUST have an explicit 'extern' before -// them. Our automated opensourcing tools use this as a signal to do -// appropriate munging for windows, which needs to add GFLAGS_DLL_DECL. -// -#define GFLAGS_DLL_DECL /* rewritten to be non-empty in windows dir */ -#define GFLAGS_DLL_DEFINE_FLAG /* rewritten to be non-empty in windows dir */ +#include "gflags_declare.h" // IWYU pragma: export + + +// We always want to export variables defined in user code +#ifndef GFLAGS_DLL_DEFINE_FLAG +# if 0 && defined(_MSC_VER) +# define GFLAGS_DLL_DEFINE_FLAG __declspec(dllexport) +# else +# define GFLAGS_DLL_DEFINE_FLAG +# endif +#endif + + +namespace gflags { // -------------------------------------------------------------------- @@ -121,19 +126,17 @@ namespace google { // Returns true if successfully registered, false if not (because the // first argument doesn't point to a command-line flag, or because a // validator is already registered for this flag). -extern bool RegisterFlagValidator(const bool* flag, - bool (*validate_fn)(const char*, bool)); -extern bool RegisterFlagValidator(const int32* flag, - bool (*validate_fn)(const char*, int32)); -extern bool RegisterFlagValidator(const int64* flag, - bool (*validate_fn)(const char*, int64)); -extern bool RegisterFlagValidator(const uint64* flag, - bool (*validate_fn)(const char*, uint64)); -extern bool RegisterFlagValidator(const double* flag, - bool (*validate_fn)(const char*, double)); -extern bool RegisterFlagValidator(const std::string* flag, - bool (*validate_fn)(const char*, - const std::string&)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const bool* flag, bool (*validate_fn)(const char*, bool)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const int32* flag, bool (*validate_fn)(const char*, int32)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const int64* flag, bool (*validate_fn)(const char*, int64)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const uint64* flag, bool (*validate_fn)(const char*, uint64)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const double* flag, bool (*validate_fn)(const char*, double)); +extern GFLAGS_DLL_DECL bool RegisterFlagValidator(const std::string* flag, bool (*validate_fn)(const char*, const std::string&)); + +// Convenience macro for the registration of a flag validator +#define DEFINE_validator(name, validator) \ + static const bool name##_validator_registered = \ + gflags::RegisterFlagValidator(&FLAGS_##name, validator) // -------------------------------------------------------------------- @@ -146,19 +149,20 @@ extern bool RegisterFlagValidator(const std::string* flag, // In addition to accessing flags, you can also access argv[0] (the program // name) and argv (the entire commandline), which we sock away a copy of. // These variables are static, so you should only set them once. - -struct GFLAGS_DLL_DECL CommandLineFlagInfo { +// +// No need to export this data only structure from DLL, avoiding VS warning 4251. +struct CommandLineFlagInfo { std::string name; // the name of the flag std::string type; // the type of the flag: int32, etc std::string description; // the "help text" associated with the flag std::string current_value; // the current value, as a string std::string default_value; // the default value, as a string std::string filename; // 'cleaned' version of filename holding the flag - bool has_validator_fn; // true if RegisterFlagValidator called on this flag - bool is_default; // true if the flag has the default value and - // has not been set explicitly from the cmdline - // or via SetCommandLineOption - const void* flag_ptr; // pointer to the flag's current value (i.e. FLAGS_foo) + bool has_validator_fn; // true if RegisterFlagValidator called on this flag + bool is_default; // true if the flag has the default value and + // has not been set explicitly from the cmdline + // or via SetCommandLineOption + const void* flag_ptr; // pointer to the flag's current value (i.e. FLAGS_foo) }; // Using this inside of a validator is a recipe for a deadlock. @@ -166,34 +170,34 @@ struct GFLAGS_DLL_DECL CommandLineFlagInfo { // call validators during ParseAllFlags. // Also make sure then to uncomment the corresponding unit test in // gflags_unittest.sh -extern void GetAllFlags(std::vector<CommandLineFlagInfo>* OUTPUT); +extern GFLAGS_DLL_DECL void GetAllFlags(std::vector<CommandLineFlagInfo>* OUTPUT); // These two are actually defined in gflags_reporting.cc. -extern void ShowUsageWithFlags(const char *argv0); // what --help does -extern void ShowUsageWithFlagsRestrict(const char *argv0, const char *restrict); +extern GFLAGS_DLL_DECL void ShowUsageWithFlags(const char *argv0); // what --help does +extern GFLAGS_DLL_DECL void ShowUsageWithFlagsRestrict(const char *argv0, const char *restrict); // Create a descriptive string for a flag. // Goes to some trouble to make pretty line breaks. -extern std::string DescribeOneFlag(const CommandLineFlagInfo& flag); +extern GFLAGS_DLL_DECL std::string DescribeOneFlag(const CommandLineFlagInfo& flag); // Thread-hostile; meant to be called before any threads are spawned. -extern void SetArgv(int argc, const char** argv); +extern GFLAGS_DLL_DECL void SetArgv(int argc, const char** argv); // The following functions are thread-safe as long as SetArgv() is // only called before any threads start. -extern const std::vector<std::string>& GetArgvs(); -extern const char* GetArgv(); // all of argv as a string -extern const char* GetArgv0(); // only argv0 -extern uint32 GetArgvSum(); // simple checksum of argv -extern const char* ProgramInvocationName(); // argv0, or "UNKNOWN" if not set -extern const char* ProgramInvocationShortName(); // basename(argv0) +extern GFLAGS_DLL_DECL const std::vector<std::string>& GetArgvs(); +extern GFLAGS_DLL_DECL const char* GetArgv(); // all of argv as a string +extern GFLAGS_DLL_DECL const char* GetArgv0(); // only argv0 +extern GFLAGS_DLL_DECL uint32 GetArgvSum(); // simple checksum of argv +extern GFLAGS_DLL_DECL const char* ProgramInvocationName(); // argv0, or "UNKNOWN" if not set +extern GFLAGS_DLL_DECL const char* ProgramInvocationShortName(); // basename(argv0) // ProgramUsage() is thread-safe as long as SetUsageMessage() is only // called before any threads start. -extern const char* ProgramUsage(); // string set by SetUsageMessage() +extern GFLAGS_DLL_DECL const char* ProgramUsage(); // string set by SetUsageMessage() // VersionString() is thread-safe as long as SetVersionString() is only // called before any threads start. -extern const char* VersionString(); // string set by SetVersionString() +extern GFLAGS_DLL_DECL const char* VersionString(); // string set by SetVersionString() @@ -207,17 +211,16 @@ extern const char* VersionString(); // string set by SetVersionString() // Return true iff the flagname was found. // OUTPUT is set to the flag's value, or unchanged if we return false. -extern bool GetCommandLineOption(const char* name, std::string* OUTPUT); +extern GFLAGS_DLL_DECL bool GetCommandLineOption(const char* name, std::string* OUTPUT); // Return true iff the flagname was found. OUTPUT is set to the flag's // CommandLineFlagInfo or unchanged if we return false. -extern bool GetCommandLineFlagInfo(const char* name, - CommandLineFlagInfo* OUTPUT); +extern GFLAGS_DLL_DECL bool GetCommandLineFlagInfo(const char* name, CommandLineFlagInfo* OUTPUT); // Return the CommandLineFlagInfo of the flagname. exit() if name not found. // Example usage, to check if a flag's value is currently the default value: // if (GetCommandLineFlagInfoOrDie("foo").is_default) ... -extern CommandLineFlagInfo GetCommandLineFlagInfoOrDie(const char* name); +extern GFLAGS_DLL_DECL CommandLineFlagInfo GetCommandLineFlagInfoOrDie(const char* name); enum GFLAGS_DLL_DECL FlagSettingMode { // update the flag's value (can call this multiple times). @@ -239,9 +242,8 @@ enum GFLAGS_DLL_DECL FlagSettingMode { // non-empty else. // SetCommandLineOption uses set_mode == SET_FLAGS_VALUE (the common case) -extern std::string SetCommandLineOption(const char* name, const char* value); -extern std::string SetCommandLineOptionWithMode(const char* name, const char* value, - FlagSettingMode set_mode); +extern GFLAGS_DLL_DECL std::string SetCommandLineOption (const char* name, const char* value); +extern GFLAGS_DLL_DECL std::string SetCommandLineOptionWithMode(const char* name, const char* value, FlagSettingMode set_mode); // -------------------------------------------------------------------- @@ -262,8 +264,8 @@ extern std::string SetCommandLineOptionWithMode(const char* name, const char* va // // without worrying about restoring the FLAG values. // } // -// Note: This class is marked with ATTRIBUTE_UNUSED because all the -// work is done in the constructor and destructor, so in the standard +// Note: This class is marked with GFLAGS_ATTRIBUTE_UNUSED because all +// the work is done in the constructor and destructor, so in the standard // usage example above, the compiler would complain that it's an // unused variable. // @@ -282,27 +284,23 @@ class GFLAGS_DLL_DECL FlagSaver { FlagSaver(const FlagSaver&); // no copying! void operator=(const FlagSaver&); -} -#ifndef _MSC_VER -__attribute__ ((unused)) -#endif -; +}; // -------------------------------------------------------------------- // Some deprecated or hopefully-soon-to-be-deprecated functions. // This is often used for logging. TODO(csilvers): figure out a better way -extern std::string CommandlineFlagsIntoString(); +extern GFLAGS_DLL_DECL std::string CommandlineFlagsIntoString(); // Usually where this is used, a FlagSaver should be used instead. -extern bool ReadFlagsFromString(const std::string& flagfilecontents, - const char* prog_name, - bool errors_are_fatal); // uses SET_FLAGS_VALUE +extern GFLAGS_DLL_DECL +bool ReadFlagsFromString(const std::string& flagfilecontents, + const char* prog_name, + bool errors_are_fatal); // uses SET_FLAGS_VALUE // These let you manually implement --flagfile functionality. // DEPRECATED. -extern bool AppendFlagsIntoFile(const std::string& filename, const char* prog_name); -extern bool ReadFromFlagsFile(const std::string& filename, const char* prog_name, - bool errors_are_fatal); // uses SET_FLAGS_VALUE +extern GFLAGS_DLL_DECL bool AppendFlagsIntoFile(const std::string& filename, const char* prog_name); +extern GFLAGS_DLL_DECL bool ReadFromFlagsFile(const std::string& filename, const char* prog_name, bool errors_are_fatal); // uses SET_FLAGS_VALUE // -------------------------------------------------------------------- @@ -313,12 +311,12 @@ extern bool ReadFromFlagsFile(const std::string& filename, const char* prog_name // Otherwise, return the value. NOTE: for booleans, for true use // 't' or 'T' or 'true' or '1', for false 'f' or 'F' or 'false' or '0'. -extern bool BoolFromEnv(const char *varname, bool defval); -extern int32 Int32FromEnv(const char *varname, int32 defval); -extern int64 Int64FromEnv(const char *varname, int64 defval); -extern uint64 Uint64FromEnv(const char *varname, uint64 defval); -extern double DoubleFromEnv(const char *varname, double defval); -extern const char *StringFromEnv(const char *varname, const char *defval); +extern GFLAGS_DLL_DECL bool BoolFromEnv(const char *varname, bool defval); +extern GFLAGS_DLL_DECL int32 Int32FromEnv(const char *varname, int32 defval); +extern GFLAGS_DLL_DECL int64 Int64FromEnv(const char *varname, int64 defval); +extern GFLAGS_DLL_DECL uint64 Uint64FromEnv(const char *varname, uint64 defval); +extern GFLAGS_DLL_DECL double DoubleFromEnv(const char *varname, double defval); +extern GFLAGS_DLL_DECL const char *StringFromEnv(const char *varname, const char *defval); // -------------------------------------------------------------------- @@ -330,12 +328,12 @@ extern const char *StringFromEnv(const char *varname, const char *defval); // SetUsageMessage(usage); // Do not include commandline flags in the usage: we do that for you! // Thread-hostile; meant to be called before any threads are spawned. -extern void SetUsageMessage(const std::string& usage); +extern GFLAGS_DLL_DECL void SetUsageMessage(const std::string& usage); // Sets the version string, which is emitted with --version. // For instance: SetVersionString("1.3"); // Thread-hostile; meant to be called before any threads are spawned. -extern void SetVersionString(const std::string& version); +extern GFLAGS_DLL_DECL void SetVersionString(const std::string& version); // Looks for flags in argv and parses them. Rearranges argv to put @@ -345,7 +343,7 @@ extern void SetVersionString(const std::string& version); // of the first non-flag argument. // See top-of-file for more details on this function. #ifndef SWIG // In swig, use ParseCommandLineFlagsScript() instead. -extern uint32 ParseCommandLineFlags(int *argc, char*** argv, bool remove_flags); +extern GFLAGS_DLL_DECL uint32 ParseCommandLineFlags(int *argc, char*** argv, bool remove_flags); #endif @@ -359,18 +357,18 @@ extern uint32 ParseCommandLineFlags(int *argc, char*** argv, bool remove_flags); // defined more than once in the command line or flag file, the last // definition is used. Returns the index (into argv) of the first // non-flag argument. (If remove_flags is true, will always return 1.) -extern uint32 ParseCommandLineNonHelpFlags(int *argc, char*** argv, - bool remove_flags); +extern GFLAGS_DLL_DECL uint32 ParseCommandLineNonHelpFlags(int *argc, char*** argv, bool remove_flags); + // This is actually defined in gflags_reporting.cc. // This function is misnamed (it also handles --version, etc.), but // it's too late to change that now. :-( -extern void HandleCommandLineHelpFlags(); // in gflags_reporting.cc +extern GFLAGS_DLL_DECL void HandleCommandLineHelpFlags(); // in gflags_reporting.cc // Allow command line reparsing. Disables the error normally // generated when an unknown flag is found, since it may be found in a // later parse. Thread-hostile; meant to be called before any threads // are spawned. -extern void AllowCommandLineReparsing(); +extern GFLAGS_DLL_DECL void AllowCommandLineReparsing(); // Reparse the flags that have not yet been recognized. Only flags // registered since the last parse will be recognized. Any flag value @@ -378,7 +376,7 @@ extern void AllowCommandLineReparsing(); // separate command line argument that follows the flag argument. // Intended for handling flags from dynamically loaded libraries, // since their flags are not registered until they are loaded. -extern void ReparseCommandLineNonHelpFlags(); +extern GFLAGS_DLL_DECL void ReparseCommandLineNonHelpFlags(); // Clean up memory allocated by flags. This is only needed to reduce // the quantity of "potentially leaked" reports emitted by memory @@ -389,7 +387,7 @@ extern void ReparseCommandLineNonHelpFlags(); // called will have unexpected consequences. This is not safe to run // when multiple threads might be running: the function is // thread-hostile. -extern void ShutDownCommandLineFlags(); +extern GFLAGS_DLL_DECL void ShutDownCommandLineFlags(); // -------------------------------------------------------------------- @@ -420,7 +418,7 @@ extern void ShutDownCommandLineFlags(); // directly. The idea is that DEFINE puts the flag in the weird // namespace, and DECLARE imports the flag from there into the current // namespace. The net result is to force people to use DECLARE to get -// access to a flag, rather than saying "extern bool FLAGS_whatever;" +// access to a flag, rather than saying "extern GFLAGS_DLL_DECL bool FLAGS_whatever;" // or some such instead. We want this so we can put extra // functionality (like sanity-checking) in DECLARE if we want, and // make sure it is picked up everywhere. @@ -441,16 +439,18 @@ class GFLAGS_DLL_DECL FlagRegisterer { // binary file. This can reduce the size of the resulting binary // somewhat, and may also be useful for security reasons. -extern const char kStrippedFlagHelp[]; +extern GFLAGS_DLL_DECL const char kStrippedFlagHelp[]; + + +} // namespace gflags -} #ifndef SWIG // In swig, ignore the main flag declarations #if defined(STRIP_FLAG_HELP) && STRIP_FLAG_HELP > 0 // Need this construct to avoid the 'defined but not used' warning. #define MAYBE_STRIPPED_HELP(txt) \ - (false ? (txt) : ::google::kStrippedFlagHelp) + (false ? (txt) : gflags::kStrippedFlagHelp) #else #define MAYBE_STRIPPED_HELP(txt) txt #endif @@ -472,7 +472,7 @@ extern const char kStrippedFlagHelp[]; /* We always want to export defined variables, dll or no */ \ GFLAGS_DLL_DEFINE_FLAG type FLAGS_##name = FLAGS_nono##name; \ type FLAGS_no##name = FLAGS_nono##name; \ - static ::google::FlagRegisterer o_##name( \ + static gflags::FlagRegisterer o_##name( \ #name, #type, MAYBE_STRIPPED_HELP(help), __FILE__, \ &FLAGS_##name, &FLAGS_no##name); \ } \ @@ -505,15 +505,15 @@ GFLAGS_DLL_DECL bool IsBoolFlag(bool from); DEFINE_VARIABLE(bool, B, name, val, txt) #define DEFINE_int32(name, val, txt) \ - DEFINE_VARIABLE(::google::int32, I, \ + DEFINE_VARIABLE(gflags::int32, I, \ name, val, txt) #define DEFINE_int64(name, val, txt) \ - DEFINE_VARIABLE(::google::int64, I64, \ + DEFINE_VARIABLE(gflags::int64, I64, \ name, val, txt) #define DEFINE_uint64(name,val, txt) \ - DEFINE_VARIABLE(::google::uint64, U64, \ + DEFINE_VARIABLE(gflags::uint64, U64, \ name, val, txt) #define DEFINE_double(name, val, txt) \ @@ -554,7 +554,7 @@ inline clstring* dont_pass0toDEFINE_string(char *stringspot, clstring* const FLAGS_no##name = ::fLS:: \ dont_pass0toDEFINE_string(s_##name[0].s, \ val); \ - static ::google::FlagRegisterer o_##name( \ + static gflags::FlagRegisterer o_##name( \ #name, "string", MAYBE_STRIPPED_HELP(txt), __FILE__, \ s_##name[0].s, new (s_##name[1].s) clstring(*FLAGS_no##name)); \ extern GFLAGS_DLL_DEFINE_FLAG clstring& FLAGS_##name; \ @@ -565,4 +565,4 @@ inline clstring* dont_pass0toDEFINE_string(char *stringspot, #endif // SWIG -#endif // BASE_COMMANDLINEFLAGS_H_ +#endif // GFLAGS_GFLAGS_H_ |