* Update thread_safety_checking.cpp to use Standard Library types
* Remove MinGW runs due to https://github.com/boostorg/system/issues/116
* Delete the shared memory example sources
This commit is contained in:
Antony Polukhin
2024-02-22 09:12:00 +03:00
committed by GitHub
parent 95caaeaf99
commit 12e07fcca1
6 changed files with 28 additions and 155 deletions

View File

@@ -63,33 +63,12 @@ void my_terminate_handler() {
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
BOOST_CONSTEXPR_OR_CONST std::size_t shared_memory_size = 4096 * 8;
//[getting_started_terminate_handlers_shmem
#include <boost/stacktrace.hpp>
#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/mapped_region.hpp>
boost::interprocess::shared_memory_object g_shm; // inited at program start
boost::interprocess::mapped_region g_region; // inited at program start
void my_signal_handler2(int signum) {
::signal(signum, SIG_DFL);
void** f = static_cast<void**>(g_region.get_address());
*f = reinterpret_cast<void*>(1); // Setting flag that shared memory now contains stacktrace.
boost::stacktrace::safe_dump_to(f + 1, g_region.get_size() - sizeof(void*));
::raise(SIGABRT);
}
//]
#include <iostream> // std::cerr
#include <fstream> // std::ifstream
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/operations.hpp>
#ifndef BOOST_WINDOWS
inline void copy_and_run(const char* exec_name, char param, bool not_null) {
std::cout << "Running with param " << param << std::endl;
boost::filesystem::path command = exec_name;
@@ -110,6 +89,7 @@ inline void copy_and_run(const char* exec_name, char param, bool not_null) {
std::exit(ret);
}
}
#endif
int run_0(const char* /*argv*/[]) {
//[getting_started_setup_terminate_handlers
@@ -160,67 +140,6 @@ int run_2(const char* argv[]) {
return 0;
}
int run_3(const char* /*argv*/[]) {
using namespace boost::interprocess;
{
shared_memory_object shm_obj(open_or_create, "shared_memory", read_write);
shm_obj.swap(g_shm);
}
g_shm.truncate(shared_memory_size);
{
mapped_region m(g_shm, read_write, 0, shared_memory_size);
m.swap(g_region);
}
void** f = static_cast<void**>(g_region.get_address());
*f = 0;
::signal(SIGSEGV, &my_signal_handler2);
::signal(SIGABRT, &my_signal_handler2);
foo(5);
return 31;
}
int run_4(const char* argv[]) {
using namespace boost::interprocess;
{
shared_memory_object shm_obj(open_only, "shared_memory", read_write);
shm_obj.swap(g_shm);
}
{
mapped_region m(g_shm, read_write, 0, shared_memory_size);
m.swap(g_region);
}
//[getting_started_on_program_restart_shmem
void** f = static_cast<void**>(g_region.get_address());
if (*f) { // Checking if memory contains stacktrace.
boost::stacktrace::stacktrace st
= boost::stacktrace::stacktrace::from_dump(f + 1, g_region.get_size() - sizeof(bool));
std::cout << "Previous run crashed and left trace in shared memory:\n" << st << std::endl;
*f = 0; /*<-*/
shared_memory_object::remove("shared_memory");
if (std::string(argv[0]).find("noop") == std::string::npos) {
if (!st) {
return 43;
}
} else {
if (st) {
return 44;
}
}
} else {
return 42; /*->*/
}
//]
return 0;
}
#include <sstream>
int test_inplace() {
@@ -335,10 +254,6 @@ int main(int argc, const char* argv[]) {
// We are copying files to make sure that stacktrace printing works independently from executable name
copy_and_run(argv[0], '1', true);
copy_and_run(argv[0], '2', false);
// There are some issues with async-safety of shared memory writes on Windows.
copy_and_run(argv[0], '3', true);
copy_and_run(argv[0], '4', false);
#endif
return test_inplace();
@@ -347,9 +262,6 @@ int main(int argc, const char* argv[]) {
switch (argv[1][0]) {
case '0': return run_0(argv);
case '1': return run_1(argv);
case '2': return run_2(argv);
case '3': return run_3(argv);
case '4': return run_4(argv);
}
return 404;