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#ifndef SUPPORT_ASSERT_CHECKPOINT_H
#define SUPPORT_ASSERT_CHECKPOINT_H
#include <csignal>
#include <iostream>
#include <cstdlib>
struct Checkpoint {
const char* file;
const char* func;
int line;
const char* msg;
Checkpoint() : file(nullptr), func(nullptr), line(-1), msg(nullptr) {}
Checkpoint(const char* xfile, const char* xfunc, int xline, const char* xmsg)
: file(xfile), func(xfunc), line(xline), msg(xmsg)
{}
template <class Stream>
void print(Stream& s) const {
if (!file) {
s << "NO CHECKPOINT\n";
return;
}
s << file << ":" << line << " " << func << ": Checkpoint";
if (msg)
s << " '" << msg << "'";
s << std::endl;
}
};
inline Checkpoint& globalCheckpoint() {
static Checkpoint C;
return C;
}
inline void clearCheckpoint() {
globalCheckpoint() = Checkpoint();
}
#if defined(__GNUC__)
#define CHECKPOINT_FUNCTION_NAME __PRETTY_FUNCTION__
#else
#define CHECKPOINT_FUNCTION_NAME __func__
#endif
#define CHECKPOINT(msg) globalCheckpoint() = Checkpoint(__FILE__, CHECKPOINT_FUNCTION_NAME, __LINE__, msg);
inline void checkpointSignalHandler(int signal) {
if (signal == SIGABRT) {
globalCheckpoint().print(std::cerr);
} else {
std::cerr << "Unexpected signal " << signal << " received\n";
}
std::_Exit(EXIT_FAILURE);
}
inline bool initCheckpointHandler() {
typedef void(*HandlerT)(int);
static bool isInit = false;
if (isInit) return true;
HandlerT prev_h = std::signal(SIGABRT, checkpointSignalHandler);
if (prev_h == SIG_ERR) {
std::cerr << "Setup failed.\n";
std::_Exit(EXIT_FAILURE);
}
isInit = true;
return false;
}
static bool initDummy = initCheckpointHandler();
#endif
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