//
//===----------------------------------------------------------------------===//
-#include "llvm/Support/PathV2.h"
-
+#include "llvm/Support/Path.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
+using namespace llvm::sys;
-#define TEST_OUT(func, result) outs() << " " #func ": " << result << '\n';
-
-#define TEST_PATH_(header, func, funcname, output) \
- header; \
- if (error_code ec = sys::path::func) \
- ASSERT_FALSE(ec.message().c_str()); \
- TEST_OUT(funcname, output)
+#define ASSERT_NO_ERROR(x) \
+ if (error_code ASSERT_NO_ERROR_ec = x) { \
+ SmallString<128> MessageStorage; \
+ raw_svector_ostream Message(MessageStorage); \
+ Message << #x ": did not return errc::success.\n" \
+ << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
+ << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
+ GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
+ } else {}
-#define TEST_PATH(func, ipath, res) TEST_PATH_(, func(ipath, res), func, res);
-
-#define TEST_PATH_SMALLVEC(func, ipath, inout) \
- TEST_PATH_(inout = ipath, func(inout), func, inout)
+namespace {
-#define TEST_PATH_SMALLVEC_P(func, ipath, inout, param) \
- TEST_PATH_(inout = ipath, func(inout, param), func, inout)
+TEST(is_separator, Works) {
+ EXPECT_TRUE(path::is_separator('/'));
+ EXPECT_FALSE(path::is_separator('\0'));
+ EXPECT_FALSE(path::is_separator('-'));
+ EXPECT_FALSE(path::is_separator(' '));
-namespace {
+#ifdef LLVM_ON_WIN32
+ EXPECT_TRUE(path::is_separator('\\'));
+#else
+ EXPECT_FALSE(path::is_separator('\\'));
+#endif
+}
TEST(Support, Path) {
SmallVector<StringRef, 40> paths;
e = paths.end();
i != e;
++i) {
- outs() << *i << " =>\n Iteration: [";
for (sys::path::const_iterator ci = sys::path::begin(*i),
ce = sys::path::end(*i);
ci != ce;
++ci) {
- outs() << *ci << ',';
+ ASSERT_FALSE(ci->empty());
}
- outs() << "]\n";
+#if 0 // Valgrind is whining about this.
outs() << " Reverse Iteration: [";
for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
ce = sys::path::rend(*i);
outs() << *ci << ',';
}
outs() << "]\n";
+#endif
+
+ path::has_root_path(*i);
+ path::root_path(*i);
+ path::has_root_name(*i);
+ path::root_name(*i);
+ path::has_root_directory(*i);
+ path::root_directory(*i);
+ path::has_parent_path(*i);
+ path::parent_path(*i);
+ path::has_filename(*i);
+ path::filename(*i);
+ path::has_stem(*i);
+ path::stem(*i);
+ path::has_extension(*i);
+ path::extension(*i);
+ path::is_absolute(*i);
+ path::is_relative(*i);
+
+ SmallString<128> temp_store;
+ temp_store = *i;
+ ASSERT_NO_ERROR(fs::make_absolute(temp_store));
+ temp_store = *i;
+ path::remove_filename(temp_store);
- bool bres;
- StringRef sfres;
- TEST_PATH(has_root_path, *i, bres);
- TEST_PATH(root_path, *i, sfres);
- TEST_PATH(has_root_name, *i, bres);
- TEST_PATH(root_name, *i, sfres);
- TEST_PATH(has_root_directory, *i, bres);
- TEST_PATH(root_directory, *i, sfres);
- TEST_PATH(has_parent_path, *i, bres);
- TEST_PATH(parent_path, *i, sfres);
- TEST_PATH(has_filename, *i, bres);
- TEST_PATH(filename, *i, sfres);
- TEST_PATH(has_stem, *i, bres);
- TEST_PATH(stem, *i, sfres);
- TEST_PATH(has_extension, *i, bres);
- TEST_PATH(extension, *i, sfres);
- TEST_PATH(is_absolute, *i, bres);
- TEST_PATH(is_relative, *i, bres);
-
- SmallString<16> temp_store;
- TEST_PATH_SMALLVEC(make_absolute, *i, temp_store);
- TEST_PATH_SMALLVEC(remove_filename, *i, temp_store);
-
- TEST_PATH_SMALLVEC_P(replace_extension, *i, temp_store, "ext");
+ temp_store = *i;
+ path::replace_extension(temp_store, "ext");
StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
- TEST_PATH(stem, filename, stem);
- TEST_PATH(extension, filename, ext);
+ stem = path::stem(filename);
+ ext = path::extension(filename);
EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str());
- TEST_PATH_(, native(*i, temp_store), native, temp_store);
+ path::native(*i, temp_store);
+ }
+}
+
+TEST(Support, RelativePathIterator) {
+ SmallString<64> Path(StringRef("c/d/e/foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
- outs().flush();
+ StringRef(Path).split(ExpectedPathComponents, "/");
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
}
}
+TEST(Support, AbsolutePathIterator) {
+ SmallString<64> Path(StringRef("/c/d/e/foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, "/");
+
+ // The root path will also be a component when iterating
+ ExpectedPathComponents[0] = "/";
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+
+#ifdef LLVM_ON_WIN32
+TEST(Support, AbsolutePathIteratorWin32) {
+ SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, "\\");
+
+ // The root path (which comes after the drive name) will also be a component
+ // when iterating.
+ ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\");
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+#endif // LLVM_ON_WIN32
+
+TEST(Support, HomeDirectory) {
+#ifdef LLVM_ON_UNIX
+ // This test only makes sense on Unix if $HOME is set.
+ if (::getenv("HOME")) {
+#endif
+ SmallString<128> HomeDir;
+ EXPECT_TRUE(path::home_directory(HomeDir));
+ EXPECT_FALSE(HomeDir.empty());
+#ifdef LLVM_ON_UNIX
+ }
+#endif
+}
+
+class FileSystemTest : public testing::Test {
+protected:
+ /// Unique temporary directory in which all created filesystem entities must
+ /// be placed. It is recursively removed at the end of each test.
+ SmallString<128> TestDirectory;
+
+ virtual void SetUp() {
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("file-system-test", TestDirectory));
+ // We don't care about this specific file.
+ errs() << "Test Directory: " << TestDirectory << '\n';
+ errs().flush();
+ }
+
+ virtual void TearDown() {
+ ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
+ }
+};
+
+TEST_F(FileSystemTest, Unique) {
+ // Create a temp file.
+ int FileDescriptor;
+ SmallString<64> TempPath;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+
+ // The same file should return an identical unique id.
+ fs::UniqueID F1, F2;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
+ ASSERT_EQ(F1, F2);
+
+ // Different files should return different unique ids.
+ int FileDescriptor2;
+ SmallString<64> TempPath2;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
+
+ fs::UniqueID D;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
+ ASSERT_NE(D, F1);
+ ::close(FileDescriptor2);
+
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+
+ // Two paths representing the same file on disk should still provide the
+ // same unique id. We can test this by making a hard link.
+ ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
+ fs::UniqueID D2;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
+ ASSERT_EQ(D2, F1);
+
+ ::close(FileDescriptor);
+
+ SmallString<128> Dir1;
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("dir1", Dir1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2));
+ ASSERT_EQ(F1, F2);
+
+ SmallString<128> Dir2;
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("dir2", Dir2));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2));
+ ASSERT_NE(F1, F2);
+}
+
+TEST_F(FileSystemTest, TempFiles) {
+ // Create a temp file.
+ int FileDescriptor;
+ SmallString<64> TempPath;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+
+ // Make sure it exists.
+ bool TempFileExists;
+ ASSERT_NO_ERROR(sys::fs::exists(Twine(TempPath), TempFileExists));
+ EXPECT_TRUE(TempFileExists);
+
+ // Create another temp tile.
+ int FD2;
+ SmallString<64> TempPath2;
+ ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
+ ASSERT_TRUE(TempPath2.endswith(".temp"));
+ ASSERT_NE(TempPath.str(), TempPath2.str());
+
+ fs::file_status A, B;
+ ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
+ ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
+ EXPECT_FALSE(fs::equivalent(A, B));
+
+ ::close(FD2);
+
+ // Remove Temp2.
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+ ASSERT_EQ(fs::remove(Twine(TempPath2), false),
+ errc::no_such_file_or_directory);
+
+ error_code EC = fs::status(TempPath2.c_str(), B);
+ EXPECT_EQ(EC, errc::no_such_file_or_directory);
+ EXPECT_EQ(B.type(), fs::file_type::file_not_found);
+
+ // Make sure Temp2 doesn't exist.
+ ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists));
+ EXPECT_FALSE(TempFileExists);
+
+ SmallString<64> TempPath3;
+ ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
+ ASSERT_FALSE(TempPath3.endswith("."));
+
+ // Create a hard link to Temp1.
+ ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
+ bool equal;
+ ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
+ EXPECT_TRUE(equal);
+ ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
+ ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
+ EXPECT_TRUE(fs::equivalent(A, B));
+
+ // Remove Temp1.
+ ::close(FileDescriptor);
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath)));
+
+ // Remove the hard link.
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+
+ // Make sure Temp1 doesn't exist.
+ ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists));
+ EXPECT_FALSE(TempFileExists);
+
+#ifdef LLVM_ON_WIN32
+ // Path name > 260 chars should get an error.
+ const char *Path270 =
+ "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8"
+ "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
+ "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
+ "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
+ "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
+ EXPECT_EQ(fs::createUniqueFile(Twine(Path270), FileDescriptor, TempPath),
+ windows_error::path_not_found);
+#endif
+}
+
+TEST_F(FileSystemTest, CreateDir) {
+ ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
+ ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
+ ASSERT_EQ(fs::create_directory(Twine(TestDirectory) + "foo", false),
+ errc::file_exists);
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo"));
+}
+
+TEST_F(FileSystemTest, DirectoryIteration) {
+ error_code ec;
+ for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
+ ASSERT_NO_ERROR(ec);
+
+ // Create a known hierarchy to recurse over.
+ ASSERT_NO_ERROR(
+ fs::create_directories(Twine(TestDirectory) + "/recursive/a0/aa1"));
+ ASSERT_NO_ERROR(
+ fs::create_directories(Twine(TestDirectory) + "/recursive/a0/ab1"));
+ ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) +
+ "/recursive/dontlookhere/da1"));
+ ASSERT_NO_ERROR(
+ fs::create_directories(Twine(TestDirectory) + "/recursive/z0/za1"));
+ ASSERT_NO_ERROR(
+ fs::create_directories(Twine(TestDirectory) + "/recursive/pop/p1"));
+ typedef std::vector<std::string> v_t;
+ v_t visited;
+ for (fs::recursive_directory_iterator i(Twine(TestDirectory)
+ + "/recursive", ec), e; i != e; i.increment(ec)){
+ ASSERT_NO_ERROR(ec);
+ if (path::filename(i->path()) == "p1") {
+ i.pop();
+ // FIXME: recursive_directory_iterator should be more robust.
+ if (i == e) break;
+ }
+ if (path::filename(i->path()) == "dontlookhere")
+ i.no_push();
+ visited.push_back(path::filename(i->path()));
+ }
+ v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
+ v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
+ v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
+ v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
+ "dontlookhere");
+ v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
+ v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
+ v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
+ v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
+ v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
+
+ // Make sure that each path was visited correctly.
+ ASSERT_NE(a0, visited.end());
+ ASSERT_NE(aa1, visited.end());
+ ASSERT_NE(ab1, visited.end());
+ ASSERT_NE(dontlookhere, visited.end());
+ ASSERT_EQ(da1, visited.end()); // Not visited.
+ ASSERT_NE(z0, visited.end());
+ ASSERT_NE(za1, visited.end());
+ ASSERT_NE(pop, visited.end());
+ ASSERT_EQ(p1, visited.end()); // Not visited.
+
+ // Make sure that parents were visited before children. No other ordering
+ // guarantees can be made across siblings.
+ ASSERT_LT(a0, aa1);
+ ASSERT_LT(a0, ab1);
+ ASSERT_LT(z0, za1);
+
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/aa1"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/ab1"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0"));
+ ASSERT_NO_ERROR(
+ fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere/da1"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop/p1"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0/za1"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0"));
+ ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive"));
+}
+
+const char archive[] = "!<arch>\x0A";
+const char bitcode[] = "\xde\xc0\x17\x0b";
+const char coff_object[] = "\x00\x00......";
+const char coff_import_library[] = "\x00\x00\xff\xff....";
+const char elf_relocatable[] = { 0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 1 };
+const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\0x00";
+const char macho_object[] = "\xfe\xed\xfa\xce..........\x00\x01";
+const char macho_executable[] = "\xfe\xed\xfa\xce..........\x00\x02";
+const char macho_fixed_virtual_memory_shared_lib[] =
+ "\xfe\xed\xfa\xce..........\x00\x03";
+const char macho_core[] = "\xfe\xed\xfa\xce..........\x00\x04";
+const char macho_preload_executable[] = "\xfe\xed\xfa\xce..........\x00\x05";
+const char macho_dynamically_linked_shared_lib[] =
+ "\xfe\xed\xfa\xce..........\x00\x06";
+const char macho_dynamic_linker[] = "\xfe\xed\xfa\xce..........\x00\x07";
+const char macho_bundle[] = "\xfe\xed\xfa\xce..........\x00\x08";
+const char macho_dsym_companion[] = "\xfe\xed\xfa\xce..........\x00\x0a";
+const char windows_resource[] = "\x00\x00\x00\x00\x020\x00\x00\x00\xff";
+
+TEST_F(FileSystemTest, Magic) {
+ struct type {
+ const char *filename;
+ const char *magic_str;
+ size_t magic_str_len;
+ fs::file_magic magic;
+ } types[] = {
+#define DEFINE(magic) \
+ { #magic, magic, sizeof(magic), fs::file_magic::magic }
+ DEFINE(archive),
+ DEFINE(bitcode),
+ DEFINE(coff_object),
+ DEFINE(coff_import_library),
+ DEFINE(elf_relocatable),
+ DEFINE(macho_universal_binary),
+ DEFINE(macho_object),
+ DEFINE(macho_executable),
+ DEFINE(macho_fixed_virtual_memory_shared_lib),
+ DEFINE(macho_core),
+ DEFINE(macho_preload_executable),
+ DEFINE(macho_dynamically_linked_shared_lib),
+ DEFINE(macho_dynamic_linker),
+ DEFINE(macho_bundle),
+ DEFINE(macho_dsym_companion),
+ DEFINE(windows_resource)
+#undef DEFINE
+ };
+
+ // Create some files filled with magic.
+ for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
+ ++i) {
+ SmallString<128> file_pathname(TestDirectory);
+ path::append(file_pathname, i->filename);
+ std::string ErrMsg;
+ raw_fd_ostream file(file_pathname.c_str(), ErrMsg, sys::fs::F_None);
+ ASSERT_FALSE(file.has_error());
+ StringRef magic(i->magic_str, i->magic_str_len);
+ file << magic;
+ file.close();
+ bool res = false;
+ ASSERT_NO_ERROR(fs::has_magic(file_pathname.c_str(), magic, res));
+ EXPECT_TRUE(res);
+ EXPECT_EQ(i->magic, fs::identify_magic(magic));
+ ASSERT_NO_ERROR(fs::remove(Twine(file_pathname)));
+ }
+}
+
+#ifdef LLVM_ON_WIN32
+TEST_F(FileSystemTest, CarriageReturn) {
+ SmallString<128> FilePathname(TestDirectory);
+ std::string ErrMsg;
+ path::append(FilePathname, "test");
+
+ {
+ raw_fd_ostream File(FilePathname.c_str(), ErrMsg, sys::fs::F_Text);
+ EXPECT_EQ(ErrMsg, "");
+ File << '\n';
+ }
+ {
+ OwningPtr<MemoryBuffer> Buf;
+ MemoryBuffer::getFile(FilePathname.c_str(), Buf);
+ EXPECT_EQ(Buf->getBuffer(), "\r\n");
+ }
+
+ {
+ raw_fd_ostream File(FilePathname.c_str(), ErrMsg, sys::fs::F_None);
+ EXPECT_EQ(ErrMsg, "");
+ File << '\n';
+ }
+ {
+ OwningPtr<MemoryBuffer> Buf;
+ MemoryBuffer::getFile(FilePathname.c_str(), Buf);
+ EXPECT_EQ(Buf->getBuffer(), "\n");
+ }
+ ASSERT_NO_ERROR(fs::remove(Twine(FilePathname)));
+}
+#endif
+
+TEST_F(FileSystemTest, FileMapping) {
+ // Create a temp file.
+ int FileDescriptor;
+ SmallString<64> TempPath;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+ // Map in temp file and add some content
+ error_code EC;
+ StringRef Val("hello there");
+ {
+ fs::mapped_file_region mfr(FileDescriptor,
+ true,
+ fs::mapped_file_region::readwrite,
+ 4096,
+ 0,
+ EC);
+ ASSERT_NO_ERROR(EC);
+ std::copy(Val.begin(), Val.end(), mfr.data());
+ // Explicitly add a 0.
+ mfr.data()[Val.size()] = 0;
+ // Unmap temp file
+ }
+
+ // Map it back in read-only
+ fs::mapped_file_region mfr(Twine(TempPath),
+ fs::mapped_file_region::readonly,
+ 0,
+ 0,
+ EC);
+ ASSERT_NO_ERROR(EC);
+
+ // Verify content
+ EXPECT_EQ(StringRef(mfr.const_data()), Val);
+
+ // Unmap temp file
+
+ fs::mapped_file_region m(Twine(TempPath),
+ fs::mapped_file_region::readonly,
+ 0,
+ 0,
+ EC);
+ ASSERT_NO_ERROR(EC);
+ const char *Data = m.const_data();
+ fs::mapped_file_region mfrrv(std::move(m));
+ EXPECT_EQ(mfrrv.const_data(), Data);
+}
} // anonymous namespace
projects / oota-llvm.git / blobdiff