boot.cpp
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#include "crucible/core/boot.hpp"
#include "crucible/core/console.hpp"
#include "crucible/core/environment.hpp"
#include "crucible/core/handlers.hpp"
#include "crucible/core/hash.hpp"
#include "crucible/core/iterators.hpp"
#include <exception>
#include <type_traits>
#include <utility>
namespace crucible
{
namespace
{
[[nodiscard]] auto exit_status_to_exit_code(exit_status const status) -> int
{
static_assert(std::is_same_v<std::underlying_type_t<exit_status>, int>);
return static_cast<int>(status);
}
}
auto boot_from_main(int argc, char **argv, boot_function const boot) -> int
{
// Set the terminate handler; crashes will not print a backtrace until this is called.
std::set_terminate(handle_terminate);
// Parse environment variables; environment queries will return default values until this is
// called.
environment().initialize();
// Select and initialize the best hash function for the current platform; prior to this process,
// or if it fails, a simple fallback hash function is used.
// May be a no-op on some platforms.
hash_manager().initialize();
// Convert argv into Crucible data structures
auto const arguments {
iterate(argv, argc)
.map([](char const *argument) {
return string_view { argument, std::strlen(argument) };
})
.materialize<heap_buffer<string_view>>()
};
// Call into client code. If you're looking for where your program starts, it's here! :)
exit_status const status { boot(arguments.view()) };
// Convert the exit status back into an `int` and finish up.
return exit_status_to_exit_code(status);
}
}