我正在Windows下移植Linux / gcc程序,并为两者实现了常见的异常处理。我想知道MinGW / gcc的SIGINT
信号是等价的。
以下是我在Linux下处理它的方法:
static void handler(int sig)
{
// Catch exceptions
switch(sig)
{
case SIGABRT:
fputs("Caught SIGABRT: usually caused by an abort() or assert()\n", stderr);
break;
case SIGFPE:
fputs("Caught SIGFPE: arithmetic exception, such as divide by zero\n",
stderr);
break;
case SIGILL:
fputs("Caught SIGILL: illegal instruction\n", stderr);
break;
case SIGINT:
fputs("Caught SIGINT: interactive attention signal, probably a ctrl+c\n",
stderr);
break;
case SIGSEGV:
fputs("Caught SIGSEGV: segfault\n", stderr);
break;
case SIGTERM:
default:
fputs("Caught SIGTERM: a termination request was sent to the program\n",
stderr);
break;
}
// Ctrl+C interrupt => No backtrace
if (sig != (int)SIGINT)
{
fprintf(stderr, "Error: signal %d:\n", sig);
posix_print_stack_trace();
}
exit(sig);
}
signal(SIGABRT, handler);
signal(SIGFPE, handler);
signal(SIGILL, handler);
signal(SIGINT, handler);
signal(SIGSEGV, handler);
signal(SIGTERM, handler);
在Windows下,这看起来像:
static LONG WINAPI windows_exception_handler(EXCEPTION_POINTERS * ExceptionInfo)
{
switch(ExceptionInfo->ExceptionRecord->ExceptionCode)
{
case EXCEPTION_ACCESS_VIOLATION:
fputs("Error: EXCEPTION_ACCESS_VIOLATION\n", stderr);
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
fputs("Error: EXCEPTION_ARRAY_BOUNDS_EXCEEDED\n", stderr);
break;
case EXCEPTION_BREAKPOINT:
fputs("Error: EXCEPTION_BREAKPOINT\n", stderr);
break;
...
}
}
if (EXCEPTION_STACK_OVERFLOW != ExceptionInfo->ExceptionRecord->ExceptionCode)
{
windows_print_stacktrace(ExceptionInfo->ContextRecord);
}
我的问题是我在Windows SIGINT
中看不到EXCEPTION_*
的任何等效内容。
如何在Windows(MinGW / gcc)下捕获“CTRL + C”中断?
非常感谢。
答案 0 :(得分:11)
如果你想抓住ctrl + c SetConsoleCtrlHandler可能就是你想要的。
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
BOOL WINAPI ConsoleHandler(DWORD);
int main(int argc, char *argv[])
{
if (!SetConsoleCtrlHandler((PHANDLER_ROUTINE)ConsoleHandler,TRUE)) {
fprintf(stderr, "Unable to install handler!\n");
return EXIT_FAILURE;
}
for (;;)
; /* Null body. */
return EXIT_SUCCESS;
}
BOOL WINAPI ConsoleHandler(DWORD dwType)
{
switch(dwType) {
case CTRL_C_EVENT:
printf("ctrl-c\n");
break;
case CTRL_BREAK_EVENT:
printf("break\n");
break;
default:
printf("Some other event\n");
}
return TRUE;
}