From f70b2ef3b8fec0c95b07be44a7e921290153f496 Mon Sep 17 00:00:00 2001 From: gabime Date: Sun, 5 Nov 2017 01:17:21 +0200 Subject: [PATCH] Fixed cygwin support --- example/Makefile.mingw | 2 +- include/spdlog/details/os.h | 938 ++++++++++++++++++------------------ 2 files changed, 470 insertions(+), 470 deletions(-) diff --git a/example/Makefile.mingw b/example/Makefile.mingw index b9ffd711..5ee5ab6f 100644 --- a/example/Makefile.mingw +++ b/example/Makefile.mingw @@ -1,5 +1,5 @@ CXX ?= g++ -CXXFLAGS = -D_WIN32_WINNT=0x600 -march=native -Wall -Wextra -Wshadow -pedantic -std=c++11 -pthread -Wl,--no-as-needed -I../include +CXXFLAGS = -D_WIN32_WINNT=0x600 -march=native -Wall -Wextra -Wshadow -pedantic -std=gnu++0x -pthread -Wl,--no-as-needed -I../include CXX_RELEASE_FLAGS = -O3 CXX_DEBUG_FLAGS= -g diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h index 735f6014..dceecdf2 100644 --- a/include/spdlog/details/os.h +++ b/include/spdlog/details/os.h @@ -1,469 +1,469 @@ -// -// Copyright(c) 2015 Gabi Melman. -// Distributed under the MIT License (http://opensource.org/licenses/MIT) -// -#pragma once - -#include "spdlog/common.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef _WIN32 - -#ifndef NOMINMAX -#define NOMINMAX //prevent windows redefining min/max -#endif - -#ifndef WIN32_LEAN_AND_MEAN -#define WIN32_LEAN_AND_MEAN -#endif -#include -#include // _get_pid support -#include // _get_osfhandle and _isatty support - -#ifdef __MINGW32__ -#include -#endif - -#else // unix - -#include -#include - -#ifdef __linux__ -#include //Use gettid() syscall under linux to get thread id - -#elif __FreeBSD__ -#include //Use thr_self() syscall under FreeBSD to get thread id -#endif - -#endif //unix - -#ifndef __has_feature // Clang - feature checking macros. -#define __has_feature(x) 0 // Compatibility with non-clang compilers. -#endif - - -namespace spdlog -{ -namespace details -{ -namespace os -{ - -inline spdlog::log_clock::time_point now() -{ - -#if defined __linux__ && defined SPDLOG_CLOCK_COARSE - timespec ts; - ::clock_gettime(CLOCK_REALTIME_COARSE, &ts); - return std::chrono::time_point( - std::chrono::duration_cast( - std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec))); - - -#else - return log_clock::now(); -#endif - -} -inline std::tm localtime(const std::time_t &time_tt) -{ - -#ifdef _WIN32 - std::tm tm; - localtime_s(&tm, &time_tt); -#else - std::tm tm; - localtime_r(&time_tt, &tm); -#endif - return tm; -} - -inline std::tm localtime() -{ - std::time_t now_t = time(nullptr); - return localtime(now_t); -} - - -inline std::tm gmtime(const std::time_t &time_tt) -{ - -#ifdef _WIN32 - std::tm tm; - gmtime_s(&tm, &time_tt); -#else - std::tm tm; - gmtime_r(&time_tt, &tm); -#endif - return tm; -} - -inline std::tm gmtime() -{ - std::time_t now_t = time(nullptr); - return gmtime(now_t); -} -inline bool operator==(const std::tm& tm1, const std::tm& tm2) -{ - return (tm1.tm_sec == tm2.tm_sec && - tm1.tm_min == tm2.tm_min && - tm1.tm_hour == tm2.tm_hour && - tm1.tm_mday == tm2.tm_mday && - tm1.tm_mon == tm2.tm_mon && - tm1.tm_year == tm2.tm_year && - tm1.tm_isdst == tm2.tm_isdst); -} - -inline bool operator!=(const std::tm& tm1, const std::tm& tm2) -{ - return !(tm1 == tm2); -} - -// eol definition -#if !defined (SPDLOG_EOL) -#ifdef _WIN32 -#define SPDLOG_EOL "\r\n" -#else -#define SPDLOG_EOL "\n" -#endif -#endif - -SPDLOG_CONSTEXPR static const char* eol = SPDLOG_EOL; -SPDLOG_CONSTEXPR static int eol_size = sizeof(SPDLOG_EOL) - 1; - -inline void prevent_child_fd(FILE *f) -{ -#ifdef _WIN32 - auto file_handle = (HANDLE)_get_osfhandle(_fileno(f)); - if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0)) - throw spdlog_ex("SetHandleInformation failed", errno); -#else - auto fd = fileno(f); - if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) - throw spdlog_ex("fcntl with FD_CLOEXEC failed", errno); -#endif -} - - -//fopen_s on non windows for writing -inline int fopen_s(FILE** fp, const filename_t& filename, const filename_t& mode) -{ -#ifdef _WIN32 -#ifdef SPDLOG_WCHAR_FILENAMES - *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYWR); -#else - *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYWR); -#endif -#else //unix - *fp = fopen((filename.c_str()), mode.c_str()); -#endif - -#ifdef SPDLOG_PREVENT_CHILD_FD - if (*fp != nullptr) - prevent_child_fd(*fp); -#endif - return *fp == nullptr; -} - - -inline int remove(const filename_t &filename) -{ -#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) - return _wremove(filename.c_str()); -#else - return std::remove(filename.c_str()); -#endif -} - -inline int rename(const filename_t& filename1, const filename_t& filename2) -{ -#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) - return _wrename(filename1.c_str(), filename2.c_str()); -#else - return std::rename(filename1.c_str(), filename2.c_str()); -#endif -} - - -//Return if file exists -inline bool file_exists(const filename_t& filename) -{ -#ifdef _WIN32 -#ifdef SPDLOG_WCHAR_FILENAMES - auto attribs = GetFileAttributesW(filename.c_str()); -#else - auto attribs = GetFileAttributesA(filename.c_str()); -#endif - return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY)); -#else //common linux/unix all have the stat system call - struct stat buffer; - return (stat(filename.c_str(), &buffer) == 0); -#endif -} - - - - -//Return file size according to open FILE* object -inline size_t filesize(FILE *f) -{ - if (f == nullptr) - throw spdlog_ex("Failed getting file size. fd is null"); -#ifdef _WIN32 - int fd = _fileno(f); -#if _WIN64 //64 bits - struct _stat64 st; - if (_fstat64(fd, &st) == 0) - return st.st_size; - -#else //windows 32 bits - long ret = _filelength(fd); - if (ret >= 0) - return static_cast(ret); -#endif - -#else // unix - int fd = fileno(f); - //64 bits(but not in osx, where fstat64 is deprecated) -#if !defined(__FreeBSD__) && !defined(__APPLE__) && (defined(__x86_64__) || defined(__ppc64__)) - struct stat64 st; - if (fstat64(fd, &st) == 0) - return static_cast(st.st_size); -#else // unix 32 bits or osx - struct stat st; - if (fstat(fd, &st) == 0) - return static_cast(st.st_size); -#endif -#endif - throw spdlog_ex("Failed getting file size from fd", errno); -} - - - - -//Return utc offset in minutes or throw spdlog_ex on failure -inline int utc_minutes_offset(const std::tm& tm = details::os::localtime()) -{ - -#ifdef _WIN32 -#if _WIN32_WINNT < _WIN32_WINNT_WS08 - TIME_ZONE_INFORMATION tzinfo; - auto rv = GetTimeZoneInformation(&tzinfo); -#else - DYNAMIC_TIME_ZONE_INFORMATION tzinfo; - auto rv = GetDynamicTimeZoneInformation(&tzinfo); -#endif - if (rv == TIME_ZONE_ID_INVALID) - throw spdlog::spdlog_ex("Failed getting timezone info. ", errno); - - int offset = -tzinfo.Bias; - if (tm.tm_isdst) - offset -= tzinfo.DaylightBias; - else - offset -= tzinfo.StandardBias; - return offset; -#else - -#if defined(sun) || defined(__sun) - // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris - struct helper - { - static long int calculate_gmt_offset(const std::tm & localtm = details::os::localtime(), const std::tm & gmtm = details::os::gmtime()) - { - int local_year = localtm.tm_year + (1900 - 1); - int gmt_year = gmtm.tm_year + (1900 - 1); - - long int days = ( - // difference in day of year - localtm.tm_yday - gmtm.tm_yday - - // + intervening leap days - + ((local_year >> 2) - (gmt_year >> 2)) - - (local_year / 100 - gmt_year / 100) - + ((local_year / 100 >> 2) - (gmt_year / 100 >> 2)) - - // + difference in years * 365 */ - + (long int)(local_year - gmt_year) * 365 - ); - - long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour); - long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min); - long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec); - - return secs; - } - }; - - long int offset_seconds = helper::calculate_gmt_offset(tm); -#else - long int offset_seconds = tm.tm_gmtoff; -#endif - - return static_cast(offset_seconds / 60); -#endif -} - -//Return current thread id as size_t -//It exists because the std::this_thread::get_id() is much slower(espcially under VS 2013) -inline size_t _thread_id() -{ -#ifdef _WIN32 - return static_cast(::GetCurrentThreadId()); -#elif __linux__ -# if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21) -# define SYS_gettid __NR_gettid -# endif - return static_cast(syscall(SYS_gettid)); -#elif __FreeBSD__ - long tid; - thr_self(&tid); - return static_cast(tid); -#elif __APPLE__ - uint64_t tid; - pthread_threadid_np(nullptr, &tid); - return static_cast(tid); -#else //Default to standard C++11 (other Unix) - return static_cast(std::hash()(std::this_thread::get_id())); -#endif -} - -//Return current thread id as size_t (from thread local storage) -inline size_t thread_id() -{ -#if defined(_MSC_VER) && (_MSC_VER < 1900) || defined(__clang__) && !__has_feature(cxx_thread_local) - return _thread_id(); -#else - static thread_local const size_t tid = _thread_id(); - return tid; -#endif -} - - - - -// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined) -#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) -#define SPDLOG_FILENAME_T(s) L ## s -inline std::string filename_to_str(const filename_t& filename) -{ - std::wstring_convert, wchar_t> c; - return c.to_bytes(filename); -} -#else -#define SPDLOG_FILENAME_T(s) s -inline std::string filename_to_str(const filename_t& filename) -{ - return filename; -} -#endif - -inline std::string errno_to_string(char[256], char* res) -{ - return std::string(res); -} - -inline std::string errno_to_string(char buf[256], int res) -{ - if (res == 0) - { - return std::string(buf); - } - else - { - return "Unknown error"; - } -} - -// Return errno string (thread safe) -inline std::string errno_str(int err_num) -{ - char buf[256]; - SPDLOG_CONSTEXPR auto buf_size = sizeof(buf); - -#ifdef _WIN32 - if (strerror_s(buf, buf_size, err_num) == 0) - return std::string(buf); - else - return "Unknown error"; - -#elif defined(__FreeBSD__) || defined(__APPLE__) || defined(ANDROID) || defined(__SUNPRO_CC) || \ - ((_POSIX_C_SOURCE >= 200112L) && ! defined(_GNU_SOURCE)) // posix version - - if (strerror_r(err_num, buf, buf_size) == 0) - return std::string(buf); - else - return "Unknown error"; - -#else // gnu version (might not use the given buf, so its retval pointer must be used) - auto err = strerror_r(err_num, buf, buf_size); // let compiler choose type - return errno_to_string(buf, err); // use overloading to select correct stringify function -#endif -} - -inline int pid() -{ - -#ifdef _WIN32 - return ::_getpid(); -#else - return static_cast(::getpid()); -#endif - -} - - -// Detrmine if the terminal supports colors -// Source: https://github.com/agauniyal/rang/ -inline bool is_color_terminal() -{ -#ifdef _WIN32 - return true; -#else - static constexpr const char* Terms[] = - { - "ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", - "linux", "msys", "putty", "rxvt", "screen", "vt100", "xterm" - }; - - const char *env_p = std::getenv("TERM"); - if (env_p == nullptr) - { - return false; - } - - static const bool result = std::any_of( - std::begin(Terms), std::end(Terms), [&](const char* term) - { - return std::strstr(env_p, term) != nullptr; - }); - return result; -#endif -} - - -// Detrmine if the terminal attached -// Source: https://github.com/agauniyal/rang/ -inline bool in_terminal(FILE* file) -{ - -#ifdef _WIN32 - return _isatty(_fileno(file)) ? true : false; -#else - return isatty(fileno(file)) ? true : false; -#endif -} -} //os -} //details -} //spdlog +// +// Copyright(c) 2015 Gabi Melman. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) +// +#pragma once + +#include "spdlog/common.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 + +#ifndef NOMINMAX +#define NOMINMAX //prevent windows redefining min/max +#endif + +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif +#include +#include // _get_pid support +#include // _get_osfhandle and _isatty support + +#ifdef __MINGW32__ +#include +#endif + +#else // unix + +#include +#include + +#ifdef __linux__ +#include //Use gettid() syscall under linux to get thread id + +#elif __FreeBSD__ +#include //Use thr_self() syscall under FreeBSD to get thread id +#endif + +#endif //unix + +#ifndef __has_feature // Clang - feature checking macros. +#define __has_feature(x) 0 // Compatibility with non-clang compilers. +#endif + + +namespace spdlog +{ +namespace details +{ +namespace os +{ + +inline spdlog::log_clock::time_point now() +{ + +#if defined __linux__ && defined SPDLOG_CLOCK_COARSE + timespec ts; + ::clock_gettime(CLOCK_REALTIME_COARSE, &ts); + return std::chrono::time_point( + std::chrono::duration_cast( + std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec))); + + +#else + return log_clock::now(); +#endif + +} +inline std::tm localtime(const std::time_t &time_tt) +{ + +#ifdef _WIN32 + std::tm tm; + localtime_s(&tm, &time_tt); +#else + std::tm tm; + localtime_r(&time_tt, &tm); +#endif + return tm; +} + +inline std::tm localtime() +{ + std::time_t now_t = time(nullptr); + return localtime(now_t); +} + + +inline std::tm gmtime(const std::time_t &time_tt) +{ + +#ifdef _WIN32 + std::tm tm; + gmtime_s(&tm, &time_tt); +#else + std::tm tm; + gmtime_r(&time_tt, &tm); +#endif + return tm; +} + +inline std::tm gmtime() +{ + std::time_t now_t = time(nullptr); + return gmtime(now_t); +} +inline bool operator==(const std::tm& tm1, const std::tm& tm2) +{ + return (tm1.tm_sec == tm2.tm_sec && + tm1.tm_min == tm2.tm_min && + tm1.tm_hour == tm2.tm_hour && + tm1.tm_mday == tm2.tm_mday && + tm1.tm_mon == tm2.tm_mon && + tm1.tm_year == tm2.tm_year && + tm1.tm_isdst == tm2.tm_isdst); +} + +inline bool operator!=(const std::tm& tm1, const std::tm& tm2) +{ + return !(tm1 == tm2); +} + +// eol definition +#if !defined (SPDLOG_EOL) +#ifdef _WIN32 +#define SPDLOG_EOL "\r\n" +#else +#define SPDLOG_EOL "\n" +#endif +#endif + +SPDLOG_CONSTEXPR static const char* eol = SPDLOG_EOL; +SPDLOG_CONSTEXPR static int eol_size = sizeof(SPDLOG_EOL) - 1; + +inline void prevent_child_fd(FILE *f) +{ +#ifdef _WIN32 + auto file_handle = (HANDLE)_get_osfhandle(_fileno(f)); + if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0)) + throw spdlog_ex("SetHandleInformation failed", errno); +#else + auto fd = fileno(f); + if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) + throw spdlog_ex("fcntl with FD_CLOEXEC failed", errno); +#endif +} + + +//fopen_s on non windows for writing +inline int fopen_s(FILE** fp, const filename_t& filename, const filename_t& mode) +{ +#ifdef _WIN32 +#ifdef SPDLOG_WCHAR_FILENAMES + *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYWR); +#else + *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYWR); +#endif +#else //unix + *fp = fopen((filename.c_str()), mode.c_str()); +#endif + +#ifdef SPDLOG_PREVENT_CHILD_FD + if (*fp != nullptr) + prevent_child_fd(*fp); +#endif + return *fp == nullptr; +} + + +inline int remove(const filename_t &filename) +{ +#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) + return _wremove(filename.c_str()); +#else + return std::remove(filename.c_str()); +#endif +} + +inline int rename(const filename_t& filename1, const filename_t& filename2) +{ +#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) + return _wrename(filename1.c_str(), filename2.c_str()); +#else + return std::rename(filename1.c_str(), filename2.c_str()); +#endif +} + + +//Return if file exists +inline bool file_exists(const filename_t& filename) +{ +#ifdef _WIN32 +#ifdef SPDLOG_WCHAR_FILENAMES + auto attribs = GetFileAttributesW(filename.c_str()); +#else + auto attribs = GetFileAttributesA(filename.c_str()); +#endif + return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY)); +#else //common linux/unix all have the stat system call + struct stat buffer; + return (stat(filename.c_str(), &buffer) == 0); +#endif +} + + + + +//Return file size according to open FILE* object +inline size_t filesize(FILE *f) +{ + if (f == nullptr) + throw spdlog_ex("Failed getting file size. fd is null"); +#if defined ( _WIN32) && !defined(__CYGWIN__) + int fd = _fileno(f); +#if _WIN64 //64 bits + struct _stat64 st; + if (_fstat64(fd, &st) == 0) + return st.st_size; + +#else //windows 32 bits + long ret = _filelength(fd); + if (ret >= 0) + return static_cast(ret); +#endif + +#else // unix + int fd = fileno(f); + //64 bits(but not in osx or cygwin, where fstat64 is deprecated) +#if !defined(__FreeBSD__) && !defined(__APPLE__) && (defined(__x86_64__) || defined(__ppc64__)) && !defined(__CYGWIN__) + struct stat64 st; + if (fstat64(fd, &st) == 0) + return static_cast(st.st_size); +#else // unix 32 bits or cygwin + struct stat st; + if (fstat(fd, &st) == 0) + return static_cast(st.st_size); +#endif +#endif + throw spdlog_ex("Failed getting file size from fd", errno); +} + + + + +//Return utc offset in minutes or throw spdlog_ex on failure +inline int utc_minutes_offset(const std::tm& tm = details::os::localtime()) +{ + +#ifdef _WIN32 +#if _WIN32_WINNT < _WIN32_WINNT_WS08 + TIME_ZONE_INFORMATION tzinfo; + auto rv = GetTimeZoneInformation(&tzinfo); +#else + DYNAMIC_TIME_ZONE_INFORMATION tzinfo; + auto rv = GetDynamicTimeZoneInformation(&tzinfo); +#endif + if (rv == TIME_ZONE_ID_INVALID) + throw spdlog::spdlog_ex("Failed getting timezone info. ", errno); + + int offset = -tzinfo.Bias; + if (tm.tm_isdst) + offset -= tzinfo.DaylightBias; + else + offset -= tzinfo.StandardBias; + return offset; +#else + +#if defined(sun) || defined(__sun) + // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris + struct helper + { + static long int calculate_gmt_offset(const std::tm & localtm = details::os::localtime(), const std::tm & gmtm = details::os::gmtime()) + { + int local_year = localtm.tm_year + (1900 - 1); + int gmt_year = gmtm.tm_year + (1900 - 1); + + long int days = ( + // difference in day of year + localtm.tm_yday - gmtm.tm_yday + + // + intervening leap days + + ((local_year >> 2) - (gmt_year >> 2)) + - (local_year / 100 - gmt_year / 100) + + ((local_year / 100 >> 2) - (gmt_year / 100 >> 2)) + + // + difference in years * 365 */ + + (long int)(local_year - gmt_year) * 365 + ); + + long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour); + long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min); + long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec); + + return secs; + } + }; + + long int offset_seconds = helper::calculate_gmt_offset(tm); +#else + long int offset_seconds = tm.tm_gmtoff; +#endif + + return static_cast(offset_seconds / 60); +#endif +} + +//Return current thread id as size_t +//It exists because the std::this_thread::get_id() is much slower(espcially under VS 2013) +inline size_t _thread_id() +{ +#ifdef _WIN32 + return static_cast(::GetCurrentThreadId()); +#elif __linux__ +# if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21) +# define SYS_gettid __NR_gettid +# endif + return static_cast(syscall(SYS_gettid)); +#elif __FreeBSD__ + long tid; + thr_self(&tid); + return static_cast(tid); +#elif __APPLE__ + uint64_t tid; + pthread_threadid_np(nullptr, &tid); + return static_cast(tid); +#else //Default to standard C++11 (other Unix) + return static_cast(std::hash()(std::this_thread::get_id())); +#endif +} + +//Return current thread id as size_t (from thread local storage) +inline size_t thread_id() +{ +#if defined(_MSC_VER) && (_MSC_VER < 1900) || defined(__clang__) && !__has_feature(cxx_thread_local) + return _thread_id(); +#else + static thread_local const size_t tid = _thread_id(); + return tid; +#endif +} + + + + +// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined) +#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) +#define SPDLOG_FILENAME_T(s) L ## s +inline std::string filename_to_str(const filename_t& filename) +{ + std::wstring_convert, wchar_t> c; + return c.to_bytes(filename); +} +#else +#define SPDLOG_FILENAME_T(s) s +inline std::string filename_to_str(const filename_t& filename) +{ + return filename; +} +#endif + +inline std::string errno_to_string(char[256], char* res) +{ + return std::string(res); +} + +inline std::string errno_to_string(char buf[256], int res) +{ + if (res == 0) + { + return std::string(buf); + } + else + { + return "Unknown error"; + } +} + +// Return errno string (thread safe) +inline std::string errno_str(int err_num) +{ + char buf[256]; + SPDLOG_CONSTEXPR auto buf_size = sizeof(buf); + +#ifdef _WIN32 + if (strerror_s(buf, buf_size, err_num) == 0) + return std::string(buf); + else + return "Unknown error"; + +#elif defined(__FreeBSD__) || defined(__APPLE__) || defined(ANDROID) || defined(__SUNPRO_CC) || \ + ((_POSIX_C_SOURCE >= 200112L) && ! defined(_GNU_SOURCE)) // posix version + + if (strerror_r(err_num, buf, buf_size) == 0) + return std::string(buf); + else + return "Unknown error"; + +#else // gnu version (might not use the given buf, so its retval pointer must be used) + auto err = strerror_r(err_num, buf, buf_size); // let compiler choose type + return errno_to_string(buf, err); // use overloading to select correct stringify function +#endif +} + +inline int pid() +{ + +#ifdef _WIN32 + return ::_getpid(); +#else + return static_cast(::getpid()); +#endif + +} + + +// Detrmine if the terminal supports colors +// Source: https://github.com/agauniyal/rang/ +inline bool is_color_terminal() +{ +#ifdef _WIN32 + return true; +#else + static constexpr const char* Terms[] = + { + "ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", + "linux", "msys", "putty", "rxvt", "screen", "vt100", "xterm" + }; + + const char *env_p = std::getenv("TERM"); + if (env_p == nullptr) + { + return false; + } + + static const bool result = std::any_of( + std::begin(Terms), std::end(Terms), [&](const char* term) + { + return std::strstr(env_p, term) != nullptr; + }); + return result; +#endif +} + + +// Detrmine if the terminal attached +// Source: https://github.com/agauniyal/rang/ +inline bool in_terminal(FILE* file) +{ + +#ifdef _WIN32 + return _isatty(_fileno(file)) ? true : false; +#else + return isatty(fileno(file)) ? true : false; +#endif +} +} //os +} //details +} //spdlog