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| author | dim <dim@FreeBSD.org> | 2011-05-02 19:34:44 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2011-05-02 19:34:44 +0000 |
| commit | 2b066988909948dc3d53d01760bc2d71d32f3feb (patch) | |
| tree | fc5f365fb9035b2d0c622bbf06c9bbe8627d7279 /lib/Support/Windows/Path.inc | |
| parent | c80ac9d286b8fcc6d1ee5d76048134cf80aa9edc (diff) | |
| download | FreeBSD-src-2b066988909948dc3d53d01760bc2d71d32f3feb.zip FreeBSD-src-2b066988909948dc3d53d01760bc2d71d32f3feb.tar.gz | |
Vendor import of llvm trunk r130700:
http://llvm.org/svn/llvm-project/llvm/trunk@130700
Diffstat (limited to 'lib/Support/Windows/Path.inc')
| -rw-r--r-- | lib/Support/Windows/Path.inc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/Support/Windows/Path.inc b/lib/Support/Windows/Path.inc index 625f67a..42a92f9 100644 --- a/lib/Support/Windows/Path.inc +++ b/lib/Support/Windows/Path.inc @@ -882,7 +882,17 @@ Path::makeUnique(bool reuse_current, std::string* ErrMsg) { // Find a numeric suffix that isn't used by an existing file. Assume there // won't be more than 1 million files with the same prefix. Probably a safe // bet. - static unsigned FCounter = 0; + static int FCounter = -1; + if (FCounter < 0) { + // Give arbitrary initial seed. + // FIXME: We should use sys::fs::unique_file() in future. + LARGE_INTEGER cnt64; + DWORD x = GetCurrentProcessId(); + x = (x << 16) | (x >> 16); + if (QueryPerformanceCounter(&cnt64)) // RDTSC + x ^= cnt64.HighPart ^ cnt64.LowPart; + FCounter = x % 1000000; + } do { sprintf(FNBuffer+offset, "-%06u", FCounter); if (++FCounter > 999999) @@ -908,12 +918,12 @@ Path::createTemporaryFileOnDisk(bool reuse_current, std::string* ErrMsg) { } /// MapInFilePages - Not yet implemented on win32. -const char *Path::MapInFilePages(int FD, uint64_t FileSize) { +const char *Path::MapInFilePages(int FD, size_t FileSize, off_t Offset) { return 0; } /// MapInFilePages - Not yet implemented on win32. -void Path::UnMapFilePages(const char *Base, uint64_t FileSize) { +void Path::UnMapFilePages(const char *Base, size_t FileSize) { assert(0 && "NOT IMPLEMENTED"); } |
