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Support/PathV2: Move current_path from path to fs and fix the Unix implementation.

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Unix bug spotted by Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121090 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
2010-12-07 01:22:31 +00:00
parent 3890e397c3
commit 1522fce477
5 changed files with 21 additions and 25 deletions
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lib/Support/Unix/PathV2.inc
+12 -10
View File
@@ -69,24 +69,26 @@ namespace {
namespace llvm {
namespace sys {
namespace path {
namespace fs {
error_code current_path(SmallVectorImpl<char> &result) {
long size = ::pathconf(".", _PC_PATH_MAX);
result.reserve(size + 1);
result.set_size(size + 1);
result.reserve(MAXPATHLEN);
if (::getcwd(result.data(), result.size()) == 0)
return error_code(errno, system_category());
while (true) {
if (::getcwd(result.data(), result.capacity()) == 0) {
// See if there was a real error.
if (errno != errc::not_enough_memory)
return error_code(errno, system_category());
// Otherwise there just wasn't enough space.
result.reserve(result.capacity() * 2);
} else
break;
}
result.set_size(strlen(result.data()));
return success;
}
} // end namespace path
namespace fs{
error_code copy_file(const Twine &from, const Twine &to, copy_option copt) {
// Get arguments.
SmallString<128> from_storage;