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monero/tests/unit_tests/mlocker.cpp
Riccardo Spagni effcbf2060
Merge pull request #4459 
bcf3f6af fuzz_tests: catch unhandled exceptions (moneromooo-monero)
3ebd05d4 miner: restore stream flags after changing them (moneromooo-monero)
a093092e levin_protocol_handler_async: do not propagate exception through dtor (moneromooo-monero)
1eebb82b net_helper: do not propagate exceptions through dtor (moneromooo-monero)
fb6a3630 miner: do not propagate exceptions through dtor (moneromooo-monero)
2e2139ff epee: do not propagate exception through dtor (moneromooo-monero)
0749a8bd db_lmdb: do not propagate exceptions in dtor (moneromooo-monero)
1b0afeeb wallet_rpc_server: exit cleanly on unhandled exceptions (moneromooo-monero)
418a9936 unit_tests: catch unhandled exceptions (moneromooo-monero)
ea7f9543 threadpool: do not propagate exceptions through the dtor (moneromooo-monero)
6e855422 gen_multisig: nice exit on unhandled exception (moneromooo-monero)
53df2deb db_lmdb: catch error in mdb_stat calls during migration (moneromooo-monero)
e67016dd blockchain_blackball: catch failure to commit db transaction (moneromooo-monero)
661439f4 mlog: don't remove old logs if we failed to rename the current file (moneromooo-monero)
5fdcda50 easylogging++: test for NULL before dereference (moneromooo-monero)
7ece1550 performance_test: fix bad last argument calling add_arg (moneromooo-monero)
a085da32 unit_tests: add check for page size > 0 before dividing (moneromooo-monero)
d8b1ec8b unit_tests: use std::shared_ptr to shut coverity up about leaks (moneromooo-monero)
02563bf4 simplewallet: top level exception catcher to print nicer messages (moneromooo-monero)
c57a65b2 blockchain_blackball: fix shift range for 32 bit archs (moneromooo-monero)
2018-09-29 22:20:38 +02:00

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// Copyright (c) 2018, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "gtest/gtest.h"
#include "misc_log_ex.h"
#include "mlocker.h"
#if defined __GNUC__ && !defined _WIN32
#define HAVE_MLOCK 1
#endif
#ifdef HAVE_MLOCK
#define BASE(data) (char*)(((uintptr_t)(data.get() + page_size - 1)) / page_size * page_size)
TEST(mlocker, distinct_1)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size > 0);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[8 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data), 1)};
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data) + 2 * page_size, 1)};
std::shared_ptr<epee::mlocker> m2{new epee::mlocker(BASE(data) + 3 * page_size, 1)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 3);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 3);
m0 = NULL;
m1 = NULL;
m2 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, distinct_full_page)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size > 0);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[8 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data), page_size)};
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data) + 2 * page_size, page_size)};
std::shared_ptr<epee::mlocker> m2{new epee::mlocker(BASE(data) + 3 * page_size, page_size)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 3);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 3);
m0 = NULL;
m1 = NULL;
m2 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, identical)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size >= 32);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[8 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data) + page_size, 32)};
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data) + page_size, 32)};
std::shared_ptr<epee::mlocker> m2{new epee::mlocker(BASE(data) + page_size, 32)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 3);
m1 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 2);
m0 = NULL;
m2 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, overlapping_small)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size >= 64);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[8 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data), 32)};
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data) + 16, 32)};
std::shared_ptr<epee::mlocker> m2{new epee::mlocker(BASE(data) + 8, 32)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 3);
m1 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 2);
m2 = NULL;
m0 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, multi_page)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size > 0);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[8 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data) + page_size, page_size * 3)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 3);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data) + page_size * 7, page_size)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 4);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 2);
m0 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
m1 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, cross_page)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size > 32);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[2 * page_size]};
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data) + page_size - 1, 2)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 2);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
m0 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, redundant)
{
const size_t page_size = epee::mlocker::get_page_size();
ASSERT_TRUE(page_size > 0);
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
std::unique_ptr<char[]> data{new char[2 * page_size]};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
std::shared_ptr<epee::mlocker> m0{new epee::mlocker(BASE(data), 32)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
std::shared_ptr<epee::mlocker> m1{new epee::mlocker(BASE(data), 32)};
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 2);
m1 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
m0 = NULL;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
TEST(mlocker, mlocked)
{
const size_t base_pages = epee::mlocker::get_num_locked_pages();
const size_t base_objects = epee::mlocker::get_num_locked_objects();
{
struct Foo { uint64_t u; };
epee::mlocked<Foo> l;
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 1);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 1);
}
ASSERT_EQ(epee::mlocker::get_num_locked_pages(), base_pages + 0);
ASSERT_EQ(epee::mlocker::get_num_locked_objects(), base_objects + 0);
}
#endif
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