diff options
Diffstat (limited to 'build/timestamp.cxx')
-rw-r--r-- | build/timestamp.cxx | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/build/timestamp.cxx b/build/timestamp.cxx deleted file mode 100644 index 9d6e70c..0000000 --- a/build/timestamp.cxx +++ /dev/null @@ -1,177 +0,0 @@ -// file : build/timestamp.cxx -*- C++ -*- -// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd -// license : MIT; see accompanying LICENSE file - -#include <build/timestamp> - -#include <unistd.h> // stat -#include <sys/types.h> // stat -#include <sys/stat.h> // stat - -#include <time.h> // localtime, gmtime, strftime - -#include <ostream> -#include <system_error> - -using namespace std; - -namespace build -{ - // Figuring out whether we have the nanoseconds in some form. - // - template <typename S> - constexpr auto nsec (const S* s) -> decltype(s->st_mtim.tv_nsec) - { - return s->st_mtim.tv_nsec; // POSIX (GNU/Linux, Solaris). - } - - template <typename S> - constexpr auto nsec (const S* s) -> decltype(s->st_mtimespec.tv_nsec) - { - return s->st_mtimespec.tv_nsec; // MacOS X. - } - - template <typename S> - constexpr auto nsec (const S* s) -> decltype(s->st_mtime_n) - { - return s->st_mtime_n; // AIX 5.2 and later. - } - - template <typename S> - constexpr int nsec (...) {return 0;} - - timestamp - path_mtime (const path& p) - { - struct stat s; - if (stat (p.string ().c_str (), &s) != 0) - { - if (errno == ENOENT || errno == ENOTDIR) - return timestamp_nonexistent; - else - throw system_error (errno, system_category ()); - } - - return system_clock::from_time_t (s.st_mtime) + - chrono::duration_cast<duration> ( - chrono::nanoseconds (nsec<struct stat> (&s))); - } - - ostream& - operator<< (ostream& os, const timestamp& ts) - { - // @@ replace with put_time() - // - - time_t t (system_clock::to_time_t (ts)); - - if (t == 0) - return os << "<nonexistent>"; - - std::tm tm; - if (localtime_r (&t, &tm) == nullptr) - throw system_error (errno, system_category ()); - - // If year is greater than 9999, we will overflow. - // - char buf[20]; // YYYY-MM-DD HH:MM:SS\0 - if (strftime (buf, sizeof (buf), "%Y-%m-%d %H:%M:%S", &tm) == 0) - return os << "<beyond year 9999>"; - - os << buf; - - using namespace chrono; - - timestamp sec (system_clock::from_time_t (t)); - nanoseconds ns (duration_cast<nanoseconds> (ts - sec)); - - if (ns != nanoseconds::zero ()) - { - os << '.'; - os.width (9); - os.fill ('0'); - os << ns.count (); - } - - return os; - } - - ostream& - operator<< (ostream& os, const duration& d) - { - // @@ replace with put_time() - // - - timestamp ts; // Epoch. - ts += d; - - time_t t (system_clock::to_time_t (ts)); - - const char* fmt (nullptr); - const char* unt ("nanoseconds"); - if (t >= 365 * 12 * 24 * 60 * 60) - { - fmt = "%Y-%m-%d %H:%M:%S"; - unt = "years"; - } - else if (t >= 12 * 24 * 60* 60) - { - fmt = "%m-%d %H:%M:%S"; - unt = "months"; - } - else if (t >= 24 * 60* 60) - { - fmt = "%d %H:%M:%S"; - unt = "days"; - } - else if (t >= 60 * 60) - { - fmt = "%H:%M:%S"; - unt = "hours"; - } - else if (t >= 60) - { - fmt = "%M:%S"; - unt = "minutes"; - } - else if (t >= 1) - { - fmt = "%S"; - unt = "seconds"; - } - - if (fmt != nullptr) - { - std::tm tm; - if (gmtime_r (&t, &tm) == nullptr) - throw system_error (errno, system_category ()); - - char buf[20]; // YYYY-MM-DD HH:MM:SS\0 - if (strftime (buf, sizeof (buf), fmt, &tm) == 0) - return os << "<beyond 9999>"; - - os << buf; - } - - using namespace chrono; - - timestamp sec (system_clock::from_time_t (t)); - nanoseconds ns (duration_cast<nanoseconds> (ts - sec)); - - if (ns != nanoseconds::zero ()) - { - if (fmt != nullptr) - { - os << '.'; - os.width (9); - os.fill ('0'); - } - - os << ns.count () << ' ' << unt; - } - else if (fmt == 0) - os << '0'; - - return os; - } -} |