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| author | NAKAMURA Takumi <geek4civic@gmail.com> | 2012-05-08 14:31:46 +0000 |
|---|---|---|
| committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2012-05-08 14:31:46 +0000 |
| commit | 6781c96599022b8baf03113d7b6f35bd3494b926 (patch) | |
| tree | 3eaff44e06cc9b70a76bfa867422bb3a118689cd | |
| parent | a33701098936ffba12326d96e98d388357f3e098 (diff) | |
| download | external_llvm-6781c96599022b8baf03113d7b6f35bd3494b926.zip external_llvm-6781c96599022b8baf03113d7b6f35bd3494b926.tar.gz external_llvm-6781c96599022b8baf03113d7b6f35bd3494b926.tar.bz2 | |
Windows/PathV2.inc: Retry rename() for (maximum) 2 seconds.
Files might be opend by system scanners (eg. file indexer, virus scanner, &c).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156380 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Support/Windows/PathV2.inc | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/Support/Windows/PathV2.inc b/lib/Support/Windows/PathV2.inc index e9ce5d9..66b8d84 100644 --- a/lib/Support/Windows/PathV2.inc +++ b/lib/Support/Windows/PathV2.inc @@ -301,11 +301,21 @@ error_code rename(const Twine &from, const Twine &to) { if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec; if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec; - if (!::MoveFileExW(wide_from.begin(), wide_to.begin(), - MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING)) - return windows_error(::GetLastError()); + error_code ec = error_code::success(); + for (int i = 0; i < 2000; i++) { + if (::MoveFileExW(wide_from.begin(), wide_to.begin(), + MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING)) + return error_code::success(); + ec = windows_error(::GetLastError()); + if (ec != windows_error::access_denied) + break; + // Retry MoveFile() at ACCESS_DENIED. + // System scanners (eg. indexer) might open the source file when + // It is written and closed. + ::Sleep(1); + } - return error_code::success(); + return ec; } error_code resize_file(const Twine &path, uint64_t size) { |