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Cleanup the interface for creating soft or hard links.

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Before this patch the unix code for creating hardlinks was unused. The code
for creating symbolic links was implemented in lib/Support/LockFileManager.cpp
and the code for creating hard links in lib/Support/*/Path.inc.

The only use we have for these is in LockFileManager.cpp and it can use both
soft and hard links. Just have a create_link function that creates one or the
other depending on the platform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203596 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-03-11 18:40:24 +00:00
parent 7e3e9aa8e1
commit 8acff70de1
5 changed files with 20 additions and 39 deletions
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lib/Support/Unix/Path.inc
+4 -2
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@@ -272,14 +272,16 @@ error_code create_directory(const Twine &path, bool IgnoreExisting) {
return error_code::success();
}
error_code create_hard_link(const Twine &to, const Twine &from) {
// Note that we are using symbolic link because hard links are not supported by
// all filesystems (SMB doesn't).
error_code create_link(const Twine &to, const Twine &from) {
// Get arguments.
SmallString<128> from_storage;
SmallString<128> to_storage;
StringRef f = from.toNullTerminatedStringRef(from_storage);
StringRef t = to.toNullTerminatedStringRef(to_storage);
if (::link(t.begin(), f.begin()) == -1)
if (::symlink(t.begin(), f.begin()) == -1)
return error_code(errno, system_category());
return error_code::success();