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-rw-r--r--src/disk_interface.cc36
1 files changed, 30 insertions, 6 deletions
diff --git a/src/disk_interface.cc b/src/disk_interface.cc
index 28530b1..7351715 100644
--- a/src/disk_interface.cc
+++ b/src/disk_interface.cc
@@ -61,17 +61,16 @@ int MakeDir(const string& path) {
TimeStamp TimeStampFromFileTime(const FILETIME& filetime) {
// FILETIME is in 100-nanosecond increments since the Windows epoch.
// We don't much care about epoch correctness but we do want the
- // resulting value to fit in an integer.
+ // resulting value to fit in a 64-bit integer.
uint64_t mtime = ((uint64_t)filetime.dwHighDateTime << 32) |
((uint64_t)filetime.dwLowDateTime);
- mtime /= 1000000000LL / 100; // 100ns -> s.
- mtime -= 12622770400LL; // 1600 epoch -> 2000 epoch (subtract 400 years).
- return (TimeStamp)mtime;
+ // 1600 epoch -> 2000 epoch (subtract 400 years).
+ return (TimeStamp)mtime - 12622770400LL * (1000000000LL / 100);
}
TimeStamp StatSingleFile(const string& path, string* err) {
WIN32_FILE_ATTRIBUTE_DATA attrs;
- if (!GetFileAttributesEx(path.c_str(), GetFileExInfoStandard, &attrs)) {
+ if (!GetFileAttributesExA(path.c_str(), GetFileExInfoStandard, &attrs)) {
DWORD win_err = GetLastError();
if (win_err == ERROR_FILE_NOT_FOUND || win_err == ERROR_PATH_NOT_FOUND)
return 0;
@@ -113,6 +112,11 @@ bool StatAllFilesInDir(const string& dir, map<string, TimeStamp>* stamps,
}
do {
string lowername = ffd.cFileName;
+ if (lowername == "..") {
+ // Seems to just copy the timestamp for ".." from ".", which is wrong.
+ // This is the case at least on NTFS under Windows 7.
+ continue;
+ }
transform(lowername.begin(), lowername.end(), lowername.begin(), ::tolower);
stamps->insert(make_pair(lowername,
TimeStampFromFileTime(ffd.ftLastWriteTime)));
@@ -165,6 +169,11 @@ TimeStamp RealDiskInterface::Stat(const string& path, string* err) const {
string dir = DirName(path);
string base(path.substr(dir.size() ? dir.size() + 1 : 0));
+ if (base == "..") {
+ // StatAllFilesInDir does not report any information for base = "..".
+ base = ".";
+ dir = path;
+ }
transform(dir.begin(), dir.end(), dir.begin(), ::tolower);
transform(base.begin(), base.end(), base.begin(), ::tolower);
@@ -192,7 +201,22 @@ TimeStamp RealDiskInterface::Stat(const string& path, string* err) const {
// that it doesn't exist.
if (st.st_mtime == 0)
return 1;
- return st.st_mtime;
+#if defined(__APPLE__) && !defined(_POSIX_C_SOURCE)
+ return ((int64_t)st.st_mtimespec.tv_sec * 1000000000LL +
+ st.st_mtimespec.tv_nsec);
+#elif (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 || defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
+ defined(__BIONIC__) || (defined (__SVR4) && defined (__sun)) || defined(__FreeBSD__))
+ // For glibc, see "Timestamp files" in the Notes of http://www.kernel.org/doc/man-pages/online/pages/man2/stat.2.html
+ // newlib, uClibc and musl follow the kernel (or Cygwin) headers and define the right macro values above.
+ // For bsd, see https://github.com/freebsd/freebsd/blob/master/sys/sys/stat.h and similar
+ // For bionic, C and POSIX API is always enabled.
+ // For solaris, see https://docs.oracle.com/cd/E88353_01/html/E37841/stat-2.html.
+ return (int64_t)st.st_mtim.tv_sec * 1000000000LL + st.st_mtim.tv_nsec;
+#elif defined(_AIX)
+ return (int64_t)st.st_mtime * 1000000000LL + st.st_mtime_n;
+#else
+ return (int64_t)st.st_mtime * 1000000000LL + st.st_mtimensec;
+#endif
#endif
}