mirror of
https://github.com/c64scene-ar/llvm-6502.git
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8acff70de1
Before this patch the unix code for creating hardlinks was unused. The code for creating symbolic links was implemented in lib/Support/LockFileManager.cpp and the code for creating hard links in lib/Support/*/Path.inc. The only use we have for these is in LockFileManager.cpp and it can use both soft and hard links. Just have a create_link function that creates one or the other depending on the platform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203596 91177308-0d34-0410-b5e6-96231b3b80d8
624 lines
20 KiB
C++
624 lines
20 KiB
C++
//===- llvm/unittest/Support/Path.cpp - Path tests ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Path.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::sys;
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#define ASSERT_NO_ERROR(x) \
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if (error_code ASSERT_NO_ERROR_ec = x) { \
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SmallString<128> MessageStorage; \
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raw_svector_ostream Message(MessageStorage); \
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Message << #x ": did not return errc::success.\n" \
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<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
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<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
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GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
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} else {}
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namespace {
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TEST(is_separator, Works) {
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EXPECT_TRUE(path::is_separator('/'));
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EXPECT_FALSE(path::is_separator('\0'));
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EXPECT_FALSE(path::is_separator('-'));
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EXPECT_FALSE(path::is_separator(' '));
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#ifdef LLVM_ON_WIN32
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EXPECT_TRUE(path::is_separator('\\'));
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#else
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EXPECT_FALSE(path::is_separator('\\'));
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#endif
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}
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TEST(Support, Path) {
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SmallVector<StringRef, 40> paths;
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paths.push_back("");
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paths.push_back(".");
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paths.push_back("..");
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paths.push_back("foo");
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paths.push_back("/");
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paths.push_back("/foo");
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paths.push_back("foo/");
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paths.push_back("/foo/");
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paths.push_back("foo/bar");
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paths.push_back("/foo/bar");
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paths.push_back("//net");
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paths.push_back("//net/foo");
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paths.push_back("///foo///");
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paths.push_back("///foo///bar");
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paths.push_back("/.");
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paths.push_back("./");
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paths.push_back("/..");
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paths.push_back("../");
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paths.push_back("foo/.");
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paths.push_back("foo/..");
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paths.push_back("foo/./");
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paths.push_back("foo/./bar");
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paths.push_back("foo/..");
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paths.push_back("foo/../");
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paths.push_back("foo/../bar");
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paths.push_back("c:");
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paths.push_back("c:/");
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paths.push_back("c:foo");
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paths.push_back("c:/foo");
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paths.push_back("c:foo/");
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paths.push_back("c:/foo/");
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paths.push_back("c:/foo/bar");
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paths.push_back("prn:");
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paths.push_back("c:\\");
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paths.push_back("c:foo");
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paths.push_back("c:\\foo");
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paths.push_back("c:foo\\");
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paths.push_back("c:\\foo\\");
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paths.push_back("c:\\foo/");
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paths.push_back("c:/foo\\bar");
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for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(),
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e = paths.end();
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i != e;
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++i) {
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for (sys::path::const_iterator ci = sys::path::begin(*i),
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ce = sys::path::end(*i);
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ci != ce;
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++ci) {
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ASSERT_FALSE(ci->empty());
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}
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#if 0 // Valgrind is whining about this.
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outs() << " Reverse Iteration: [";
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for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
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ce = sys::path::rend(*i);
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ci != ce;
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++ci) {
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outs() << *ci << ',';
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}
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outs() << "]\n";
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#endif
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path::has_root_path(*i);
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path::root_path(*i);
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path::has_root_name(*i);
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path::root_name(*i);
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path::has_root_directory(*i);
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path::root_directory(*i);
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path::has_parent_path(*i);
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path::parent_path(*i);
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path::has_filename(*i);
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path::filename(*i);
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path::has_stem(*i);
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path::stem(*i);
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path::has_extension(*i);
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path::extension(*i);
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path::is_absolute(*i);
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path::is_relative(*i);
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SmallString<128> temp_store;
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temp_store = *i;
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ASSERT_NO_ERROR(fs::make_absolute(temp_store));
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temp_store = *i;
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path::remove_filename(temp_store);
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temp_store = *i;
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path::replace_extension(temp_store, "ext");
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StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
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stem = path::stem(filename);
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ext = path::extension(filename);
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EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str());
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path::native(*i, temp_store);
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}
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}
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TEST(Support, RelativePathIterator) {
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SmallString<64> Path(StringRef("c/d/e/foo.txt"));
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typedef SmallVector<StringRef, 4> PathComponents;
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PathComponents ExpectedPathComponents;
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PathComponents ActualPathComponents;
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StringRef(Path).split(ExpectedPathComponents, "/");
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for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
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++I) {
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ActualPathComponents.push_back(*I);
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}
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ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
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for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
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EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
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}
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}
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TEST(Support, AbsolutePathIterator) {
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SmallString<64> Path(StringRef("/c/d/e/foo.txt"));
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typedef SmallVector<StringRef, 4> PathComponents;
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PathComponents ExpectedPathComponents;
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PathComponents ActualPathComponents;
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StringRef(Path).split(ExpectedPathComponents, "/");
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// The root path will also be a component when iterating
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ExpectedPathComponents[0] = "/";
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for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
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++I) {
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ActualPathComponents.push_back(*I);
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}
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ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
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for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
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EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
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}
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}
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#ifdef LLVM_ON_WIN32
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TEST(Support, AbsolutePathIteratorWin32) {
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SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt"));
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typedef SmallVector<StringRef, 4> PathComponents;
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PathComponents ExpectedPathComponents;
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PathComponents ActualPathComponents;
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StringRef(Path).split(ExpectedPathComponents, "\\");
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// The root path (which comes after the drive name) will also be a component
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// when iterating.
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ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\");
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for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
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++I) {
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ActualPathComponents.push_back(*I);
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}
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ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
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for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
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EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
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}
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}
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#endif // LLVM_ON_WIN32
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TEST(Support, AbsolutePathIteratorEnd) {
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// Trailing slashes are converted to '.' unless they are part of the root path.
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SmallVector<StringRef, 4> Paths;
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Paths.push_back("/foo/");
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Paths.push_back("/foo//");
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Paths.push_back("//net//");
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#ifdef LLVM_ON_WIN32
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Paths.push_back("c:\\\\");
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#endif
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for (StringRef Path : Paths) {
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StringRef LastComponent = *--path::end(Path);
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EXPECT_EQ(".", LastComponent);
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}
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SmallVector<StringRef, 3> RootPaths;
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RootPaths.push_back("/");
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RootPaths.push_back("//net/");
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#ifdef LLVM_ON_WIN32
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RootPaths.push_back("c:\\");
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#endif
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for (StringRef Path : RootPaths) {
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StringRef LastComponent = *--path::end(Path);
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EXPECT_EQ(1u, LastComponent.size());
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EXPECT_TRUE(path::is_separator(LastComponent[0]));
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}
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}
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TEST(Support, HomeDirectory) {
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#ifdef LLVM_ON_UNIX
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// This test only makes sense on Unix if $HOME is set.
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if (::getenv("HOME")) {
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#endif
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SmallString<128> HomeDir;
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EXPECT_TRUE(path::home_directory(HomeDir));
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EXPECT_FALSE(HomeDir.empty());
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#ifdef LLVM_ON_UNIX
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}
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#endif
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}
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class FileSystemTest : public testing::Test {
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protected:
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/// Unique temporary directory in which all created filesystem entities must
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/// be placed. It is recursively removed at the end of each test.
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SmallString<128> TestDirectory;
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virtual void SetUp() {
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ASSERT_NO_ERROR(
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fs::createUniqueDirectory("file-system-test", TestDirectory));
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// We don't care about this specific file.
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errs() << "Test Directory: " << TestDirectory << '\n';
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errs().flush();
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}
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virtual void TearDown() {
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ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
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}
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};
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TEST_F(FileSystemTest, Unique) {
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// Create a temp file.
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int FileDescriptor;
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SmallString<64> TempPath;
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ASSERT_NO_ERROR(
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fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
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// The same file should return an identical unique id.
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fs::UniqueID F1, F2;
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ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
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ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
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ASSERT_EQ(F1, F2);
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// Different files should return different unique ids.
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int FileDescriptor2;
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SmallString<64> TempPath2;
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ASSERT_NO_ERROR(
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fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
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fs::UniqueID D;
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ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
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ASSERT_NE(D, F1);
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::close(FileDescriptor2);
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ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
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// Two paths representing the same file on disk should still provide the
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// same unique id. We can test this by making a hard link.
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ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
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fs::UniqueID D2;
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ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
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ASSERT_EQ(D2, F1);
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::close(FileDescriptor);
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SmallString<128> Dir1;
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ASSERT_NO_ERROR(
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fs::createUniqueDirectory("dir1", Dir1));
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ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1));
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ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2));
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ASSERT_EQ(F1, F2);
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SmallString<128> Dir2;
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ASSERT_NO_ERROR(
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fs::createUniqueDirectory("dir2", Dir2));
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ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2));
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ASSERT_NE(F1, F2);
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}
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TEST_F(FileSystemTest, TempFiles) {
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// Create a temp file.
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int FileDescriptor;
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SmallString<64> TempPath;
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ASSERT_NO_ERROR(
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fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
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// Make sure it exists.
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bool TempFileExists;
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ASSERT_NO_ERROR(sys::fs::exists(Twine(TempPath), TempFileExists));
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EXPECT_TRUE(TempFileExists);
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// Create another temp tile.
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int FD2;
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SmallString<64> TempPath2;
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ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
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ASSERT_TRUE(TempPath2.endswith(".temp"));
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ASSERT_NE(TempPath.str(), TempPath2.str());
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fs::file_status A, B;
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ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
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ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
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EXPECT_FALSE(fs::equivalent(A, B));
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::close(FD2);
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// Remove Temp2.
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ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
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ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
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ASSERT_EQ(fs::remove(Twine(TempPath2), false),
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errc::no_such_file_or_directory);
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error_code EC = fs::status(TempPath2.c_str(), B);
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EXPECT_EQ(EC, errc::no_such_file_or_directory);
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EXPECT_EQ(B.type(), fs::file_type::file_not_found);
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// Make sure Temp2 doesn't exist.
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ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists));
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EXPECT_FALSE(TempFileExists);
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SmallString<64> TempPath3;
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ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
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ASSERT_FALSE(TempPath3.endswith("."));
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// Create a hard link to Temp1.
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ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
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bool equal;
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ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
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EXPECT_TRUE(equal);
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ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
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ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
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EXPECT_TRUE(fs::equivalent(A, B));
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// Remove Temp1.
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::close(FileDescriptor);
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ASSERT_NO_ERROR(fs::remove(Twine(TempPath)));
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// Remove the hard link.
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ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
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// Make sure Temp1 doesn't exist.
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ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists));
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EXPECT_FALSE(TempFileExists);
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#ifdef LLVM_ON_WIN32
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// Path name > 260 chars should get an error.
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const char *Path270 =
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"abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8"
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"abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
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"abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
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"abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
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"abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
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EXPECT_EQ(fs::createUniqueFile(Twine(Path270), FileDescriptor, TempPath),
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windows_error::path_not_found);
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#endif
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}
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TEST_F(FileSystemTest, CreateDir) {
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ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
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ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
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ASSERT_EQ(fs::create_directory(Twine(TestDirectory) + "foo", false),
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errc::file_exists);
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ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo"));
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}
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TEST_F(FileSystemTest, DirectoryIteration) {
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error_code ec;
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for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
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ASSERT_NO_ERROR(ec);
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// Create a known hierarchy to recurse over.
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ASSERT_NO_ERROR(
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fs::create_directories(Twine(TestDirectory) + "/recursive/a0/aa1"));
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ASSERT_NO_ERROR(
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fs::create_directories(Twine(TestDirectory) + "/recursive/a0/ab1"));
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ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) +
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"/recursive/dontlookhere/da1"));
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ASSERT_NO_ERROR(
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fs::create_directories(Twine(TestDirectory) + "/recursive/z0/za1"));
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ASSERT_NO_ERROR(
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fs::create_directories(Twine(TestDirectory) + "/recursive/pop/p1"));
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typedef std::vector<std::string> v_t;
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v_t visited;
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for (fs::recursive_directory_iterator i(Twine(TestDirectory)
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+ "/recursive", ec), e; i != e; i.increment(ec)){
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ASSERT_NO_ERROR(ec);
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if (path::filename(i->path()) == "p1") {
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i.pop();
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// FIXME: recursive_directory_iterator should be more robust.
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if (i == e) break;
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}
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if (path::filename(i->path()) == "dontlookhere")
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i.no_push();
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visited.push_back(path::filename(i->path()));
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}
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v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
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v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
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v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
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v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
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"dontlookhere");
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v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
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v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
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v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
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v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
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v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
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// Make sure that each path was visited correctly.
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ASSERT_NE(a0, visited.end());
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ASSERT_NE(aa1, visited.end());
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ASSERT_NE(ab1, visited.end());
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ASSERT_NE(dontlookhere, visited.end());
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ASSERT_EQ(da1, visited.end()); // Not visited.
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ASSERT_NE(z0, visited.end());
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ASSERT_NE(za1, visited.end());
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ASSERT_NE(pop, visited.end());
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ASSERT_EQ(p1, visited.end()); // Not visited.
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// Make sure that parents were visited before children. No other ordering
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// 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';
|
|
}
|
|
{
|
|
std::unique_ptr<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';
|
|
}
|
|
{
|
|
std::unique_ptr<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
|