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<rdar://problem/13477190> On Darwin, use DARWIN_USER_TEMP_DIR or DARWIN_USER_CACHE_DIR for the system temporary directory. 

The DARWIN_USER_TEMP_DIR and DARWIN_USER_CACHE_DIR configuration
settings are more idiomatic for Darwin than the TMPDIR environment
variable.

llvm-svn: 177669
This commit is contained in:
Douglas Gregor 2013-03-21 21:46:10 +00:00
parent 3d0ffd10aa
commit a86ddf0411
1 changed files with 24 additions and 0 deletions
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24
llvm/lib/Support/PathV2.cpp
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@ -18,6 +18,9 @@
#include <cctype>
#include <cstdio>
#include <cstring>
#ifdef __APPLE__
#include <unistd.h>
#endif
namespace {
using llvm::StringRef;
@ -493,6 +496,27 @@ bool is_separator(char value) {
void system_temp_directory(bool erasedOnReboot, SmallVectorImpl<char> &result) {
result.clear();
#ifdef __APPLE__
// On Darwin, use DARWIN_USER_TEMP_DIR or DARWIN_USER_CACHE_DIR.
int ConfName = erasedOnReboot? _CS_DARWIN_USER_TEMP_DIR
: _CS_DARWIN_USER_CACHE_DIR;
size_t ConfLen = confstr(ConfName, 0, 0);
if (ConfLen > 0) {
do {
result.resize(ConfLen);
ConfLen = confstr(ConfName, result.data(), result.size());
} while (ConfLen > 0 && ConfLen != result.size());
if (ConfLen > 0) {
assert(result.back() == 0);
result.pop_back();
return;
}
result.clear();
}
#endif
// Check whether the temporary directory is specified by an environment
// variable.
const char *EnvironmentVariable;