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#pragma once
#include <cstdarg>
#include <cstring>
#include <string>
#include <cerrno>
namespace RethinkDB {
// All errors thrown by the server have this type
struct Error {
template <class ...T>
explicit Error(const char* format_, T... A) {
format(format_, A...);
}
Error() = default;
Error(Error&&) = default;
Error(const Error&) = default;
Error& operator= (Error&& other) {
message = std::move(other.message);
return *this;
}
static Error from_errno(const char* str){
return Error("%s: %s", str, strerror(errno));
}
// The error message
std::string message;
private:
const size_t max_message_size = 2048;
void format(const char* format_, ...) {
va_list args;
va_start(args, format_);
char message_[max_message_size];
vsnprintf(message_, max_message_size, format_, args);
va_end(args);
message = message_;
}
};
}
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