1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
//===- MappedFileRegionBumpPtrTest.cpp ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Program.h"
#include "llvm/CAS/MappedFileRegionBumpPtr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/ThreadPool.h"
#include "gtest/gtest.h"
#if defined(__APPLE__)
#include <crt_externs.h>
#elif !defined(_MSC_VER)
// Forward declare environ in case it's not provided by stdlib.h.
extern char **environ;
#endif
using namespace llvm;
using namespace llvm::cas;
extern const char *TestMainArgv0;
static char ProgramID = 0;
class CASProgramTest : public testing::Test {
std::vector<StringRef> EnvTable;
std::vector<std::string> EnvStorage;
protected:
void SetUp() override {
auto EnvP = [] {
#if defined(_WIN32)
_wgetenv(L"TMP"); // Populate _wenviron, initially is null
return _wenviron;
#elif defined(__APPLE__)
return *_NSGetEnviron();
#else
return environ;
#endif
}();
ASSERT_TRUE(EnvP);
auto prepareEnvVar = [this](decltype(*EnvP) Var) -> StringRef {
#if defined(_WIN32)
// On Windows convert UTF16 encoded variable to UTF8
auto Len = wcslen(Var);
ArrayRef<char> Ref{reinterpret_cast<char const *>(Var),
Len * sizeof(*Var)};
EnvStorage.emplace_back();
auto convStatus = convertUTF16ToUTF8String(Ref, EnvStorage.back());
EXPECT_TRUE(convStatus);
return EnvStorage.back();
#else
(void)this;
return StringRef(Var);
#endif
};
while (*EnvP != nullptr) {
auto S = prepareEnvVar(*EnvP);
if (!StringRef(S).starts_with("GTEST_"))
EnvTable.emplace_back(S);
++EnvP;
}
}
void TearDown() override {
EnvTable.clear();
EnvStorage.clear();
}
void addEnvVar(StringRef Var) { EnvTable.emplace_back(Var); }
ArrayRef<StringRef> getEnviron() const { return EnvTable; }
};
#if LLVM_ENABLE_ONDISK_CAS
TEST_F(CASProgramTest, MappedFileRegionBumpPtrTest) {
auto TestAllocator = [](StringRef Path) {
auto NewFileConstructor = [&](MappedFileRegionBumpPtr &Alloc) -> Error {
Alloc.initializeBumpPtr(0);
return Error::success();
};
auto Alloc = MappedFileRegionBumpPtr::create(
Path, /*Capacity=*/10 * 1024 * 1024,
/*BumpPtrOffset=*/0, NewFileConstructor);
if (!Alloc)
ASSERT_TRUE(false);
std::vector<unsigned *> AllocatedPtr;
AllocatedPtr.resize(100);
DefaultThreadPool Threads;
for (unsigned I = 0; I < 100; ++I) {
Threads.async(
[&](unsigned Idx) {
// Allocate a buffer that is larger than needed so allocator hits
// additional pages for test coverage.
unsigned *P = (unsigned *)Alloc->allocate(100);
*P = Idx;
AllocatedPtr[Idx] = P;
},
I);
}
Threads.wait();
for (unsigned I = 0; I < 100; ++I)
EXPECT_EQ(*AllocatedPtr[I], I);
};
if (const char *File = getenv("LLVM_CAS_TEST_MAPPED_FILE_REGION")) {
TestAllocator(File);
exit(0);
}
SmallString<128> FilePath;
sys::fs::createUniqueDirectory("MappedFileRegionBumpPtr", FilePath);
sys::path::append(FilePath, "allocation-file");
std::string Executable =
sys::fs::getMainExecutable(TestMainArgv0, &ProgramID);
StringRef Argv[] = {
Executable, "--gtest_filter=CASProgramTest.MappedFileRegionBumpPtrTest"};
// Add LLVM_PROGRAM_TEST_LOCKED_FILE to the environment of the child.
std::string EnvVar = "LLVM_CAS_TEST_MAPPED_FILE_REGION=";
EnvVar += FilePath.str();
addEnvVar(EnvVar);
std::string Error;
bool ExecutionFailed;
sys::ProcessInfo PI = sys::ExecuteNoWait(Executable, Argv, getEnviron(), {},
0, &Error, &ExecutionFailed);
TestAllocator(FilePath);
ASSERT_FALSE(ExecutionFailed) << Error;
ASSERT_TRUE(Error.empty());
ASSERT_NE(PI.Pid, sys::ProcessInfo::InvalidPid) << "Invalid process id";
llvm::sys::Wait(PI, /*SecondsToWait=*/5, &Error);
ASSERT_TRUE(Error.empty());
// Clean up after both processes finish testing.
sys::fs::remove(FilePath);
sys::fs::remove_directories(sys::path::parent_path(FilePath));
}
#endif // LLVM_ENABLE_ONDISK_CAS
|
