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| author | B Stack <bgstack15@gmail.com> | 2021-02-02 21:49:34 +0000 |
|---|---|---|
| committer | B Stack <bgstack15@gmail.com> | 2021-02-02 21:49:34 +0000 |
| commit | 26b8bd6eb07b78adad36049e03494a2931b231af (patch) | |
| tree | 4d7c950512836f473a6a8cbb521c61e800db6584 /zen/file_io.cpp | |
| parent | Merge branch '11.5' into 'master' (diff) | |
| parent | add upstream 11.6 (diff) | |
| download | FreeFileSync-26b8bd6eb07b78adad36049e03494a2931b231af.tar.gz FreeFileSync-26b8bd6eb07b78adad36049e03494a2931b231af.tar.bz2 FreeFileSync-26b8bd6eb07b78adad36049e03494a2931b231af.zip | |
Merge branch '11.6' into 'master'11.6
add upstream 11.6
See merge request opensource-tracking/FreeFileSync!30
Diffstat (limited to 'zen/file_io.cpp')
| -rw-r--r-- | zen/file_io.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/zen/file_io.cpp b/zen/file_io.cpp index 33c41fbc..e081335d 100644 --- a/zen/file_io.cpp +++ b/zen/file_io.cpp @@ -167,7 +167,7 @@ FileBase::FileHandle openHandleForWrite(const Zstring& filePath) //throw FileErr //checkForUnsupportedType(filePath); -> not needed, open() + O_WRONLY should fail fast const int fdFile = ::open(filePath.c_str(), O_WRONLY | O_CREAT | O_CLOEXEC | /*access == FileOutput::ACC_OVERWRITE ? O_TRUNC : */ O_EXCL, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); //0666 + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); //0666 => umask will be applied implicitly! if (fdFile == -1) { const int ec = errno; //copy before making other system calls! @@ -296,7 +296,7 @@ void FileOutput::reserveSpace(uint64_t expectedSize) //throw FileError if (expectedSize < 1024) //https://www.sciencedirect.com/topics/computer-science/master-file-table return; - //don't use ::posix_fallocate! horribly inefficient if FS doesn't support it + changes file size + //don't use ::posix_fallocate which uses horribly inefficient fallback if FS doesn't support it (EOPNOTSUPP) and changes files size! //FALLOC_FL_KEEP_SIZE => allocate only, file size is NOT changed! if (::fallocate(getHandle(), //int fd, FALLOC_FL_KEEP_SIZE, //int mode, |