[libclang] Introduce clang_getFileUniqueID which returns a struct
for a CXFile containing device/inode/modification time.
Intended to be useful as a key associated with a unique file across
an indexing session.
rdar://13091837
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173559 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 5d49241..a851709 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -2960,6 +2960,21 @@
.isFileMultipleIncludeGuarded(FEnt);
}
+int clang_getFileUniqueID(CXFile file, CXFileUniqueID *outID) {
+ if (!file || !outID)
+ return 1;
+
+#ifdef LLVM_ON_WIN32
+ return 1; // inodes not supported on windows.
+#else
+ FileEntry *FEnt = static_cast<FileEntry *>(file);
+ outID->data[0] = FEnt->getDevice();
+ outID->data[1] = FEnt->getInode();
+ outID->data[2] = FEnt->getModificationTime();
+ return 0;
+#endif
+}
+
} // end: extern "C"
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