Revise the design of the Path concept per peer review. Too many changes to
note individually but these essence of it is to not derive from
std::string, clarify the interface, and provide better documentation.
There is now also (untested) implementations for AIX, Darwin, and SunOS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16078 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Linux/Path.cpp b/lib/System/Linux/Path.cpp
index 5c73d01..e7efd2f 100644
--- a/lib/System/Linux/Path.cpp
+++ b/lib/System/Linux/Path.cpp
@@ -13,8 +13,26 @@
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Linux specific code
-//=== and must not be generic UNIX code (see ../Unix)
+//=== and must not be generic UNIX code (see ../Unix/Path.cpp)
//===----------------------------------------------------------------------===//
-// Th..Th..Th..Tha's All Folks!
+// Include the generic Unix implementation
#include "../Unix/Path.cpp"
+
+namespace llvm {
+using namespace sys;
+
+bool
+Path::is_valid() const {
+ if (path.empty())
+ return false;
+ char pathname[MAXPATHLEN];
+ if (0 == realpath(path.c_str(), pathname))
+ if (errno != EACCES && errno != EIO && errno != ENOENT && errno != ENOTDIR)
+ return false;
+ return true;
+}
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab