home/src/assert.cc
Maxime Coste da9794e272 Fix xmessage handling in assert.cc
The return value of the system call is not directly the exit value
of the process, but a status that needs to be inspected with some
macros.
2017-07-17 18:13:20 +09:00

51 lines
1.2 KiB
C++

#include "assert.hh"
#include "backtrace.hh"
#include "buffer_utils.hh"
#include "exception.hh"
#if defined(__CYGWIN__)
#include <windows.h>
#endif
#include <sys/types.h>
#include <unistd.h>
#include <cstdlib>
namespace Kakoune
{
struct assert_failed : logic_error
{
assert_failed(String message)
: m_message(std::move(message)) {}
StringView what() const override { return m_message; }
private:
String m_message;
};
bool notify_fatal_error(StringView msg)
{
#if defined(__CYGWIN__)
return MessageBox(NULL, msg.zstr(), "Kakoune: fatal error",
MB_OKCANCEL | MB_ICONERROR) == IDOK;
#elif defined(__linux__)
auto cmd = format("xmessage -buttons 'quit:0,ignore:1' '{}'", msg);
int status = system(cmd.c_str());
return (WIFEXITED(status)) ? (WEXITSTATUS(status)) == 1 : false;
#endif
}
void on_assert_failed(const char* message)
{
String debug_info = format("pid: {}\ncallstack:\n{}", getpid(), Backtrace{}.desc());
write_to_debug_buffer(format("assert failed: '{}'\n{}", message, debug_info));
const auto msg = format("{}\n[Debug Infos]\n{}", message, debug_info);
if (not notify_fatal_error(msg))
throw assert_failed(msg);
}
}