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author | NAKAMURA Takumi <geek4civic@gmail.com> | 2012-05-08 14:31:46 +0000 |
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committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2012-05-08 14:31:46 +0000 |
commit | 3b7f995b75cb75427199dfe6978c4248a6909aff (patch) | |
tree | f1196f8a3b0cfc70b510d1cf216702dac93f4d08 /llvm | |
parent | 3bbb1d50df60340d5eac9384b7140db29fcf9e51 (diff) | |
download | bcm5719-llvm-3b7f995b75cb75427199dfe6978c4248a6909aff.tar.gz bcm5719-llvm-3b7f995b75cb75427199dfe6978c4248a6909aff.zip |
Windows/PathV2.inc: Retry rename() for (maximum) 2 seconds.
Files might be opend by system scanners (eg. file indexer, virus scanner, &c).
llvm-svn: 156380
Diffstat (limited to 'llvm')
-rw-r--r-- | llvm/lib/Support/Windows/PathV2.inc | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/llvm/lib/Support/Windows/PathV2.inc b/llvm/lib/Support/Windows/PathV2.inc index e9ce5d9097a..66b8d84f852 100644 --- a/llvm/lib/Support/Windows/PathV2.inc +++ b/llvm/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) { |