diff options
| -rw-r--r-- | src/corelib/io/qfilesystemengine_unix.cpp | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/corelib/io/qfilesystemengine_unix.cpp b/src/corelib/io/qfilesystemengine_unix.cpp index d77cdc123c..75d0c60288 100644 --- a/src/corelib/io/qfilesystemengine_unix.cpp +++ b/src/corelib/io/qfilesystemengine_unix.cpp @@ -104,6 +104,16 @@ static int statx(int dirfd, const char *pathname, int flag, unsigned mask, struc QT_BEGIN_NAMESPACE +enum { +#ifdef Q_OS_ANDROID + // On Android, the link(2) system call has been observed to always fail + // with EACCES, regardless of whether there are permission problems or not. + SupportsHardlinking = false +#else + SupportsHardlinking = true +#endif +}; + #define emptyFileEntryWarning() emptyFileEntryWarning_(QT_MESSAGELOG_FILE, QT_MESSAGELOG_LINE, QT_MESSAGELOG_FUNC) static void emptyFileEntryWarning_(const char *file, int line, const char *function) { @@ -1278,7 +1288,7 @@ bool QFileSystemEngine::renameFile(const QFileSystemEntry &source, const QFileSy } #endif - if (::link(srcPath, tgtPath) == 0) { + if (SupportsHardlinking && ::link(srcPath, tgtPath) == 0) { if (::unlink(srcPath) == 0) return true; @@ -1292,6 +1302,11 @@ bool QFileSystemEngine::renameFile(const QFileSystemEntry &source, const QFileSy error = QSystemError(savedErrno, QSystemError::StandardLibraryError); return false; + } else if (!SupportsHardlinking) { + // man 2 link on Linux has: + // EPERM The filesystem containing oldpath and newpath does not + // support the creation of hard links. + errno = EPERM; } switch (errno) { |