From 2bbd177d5a68e1dff83cc81afaae706c58f81a12 Mon Sep 17 00:00:00 2001
From: PioLing <964472638@qq.com>
Date: Sat, 31 May 2025 11:26:00 +0800
Subject: [PATCH] Add win32 core dump (#4291)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

单元测试代码
int main() {
    System::systemSetup();
    int *p = nullptr;
    *p = 1; // 强制崩溃
    return 0;
}

崩溃后直接用 vs2019(2022) 打开 dmp 文件。
菜单选择 File → Open → File...，选择你的 .dmp 文件。
提示你“选择符号和源码”，若有源码和 pdb/symbol 文件能看到更详细的堆栈。
---
 server/System.cpp | 48 +++++++++++++++++++++++++++++++++++++++++++++++
 server/main.cpp   |  5 ++---
 2 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/server/System.cpp b/server/System.cpp
index c37e4958..c76af03e 100644
--- a/server/System.cpp
+++ b/server/System.cpp
@@ -15,6 +15,12 @@
 #if !defined(ANDROID)
 #include <execinfo.h>
 #endif//!defined(ANDROID)
+#else
+#include <fcntl.h>
+#include <io.h>
+#include <Windows.h>
+#include <DbgHelp.h>
+#pragma comment(lib, "DbgHelp.lib")
 #endif//!defined(_WIN32)
 
 #include <cstdlib>
@@ -213,6 +219,48 @@ void System::systemSetup(){
     // Ignore the hang up signal
     signal(SIGHUP, SIG_IGN);
 #endif// ANDROID
+#else
+    // 避免系统弹窗导致程序阻塞，适合无界面或后台服务场景。
+    SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX);
+
+#if !defined(__MINGW32__)
+    // 将assert和error时错误输出
+    _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
+    _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG);
+#endif
+
+    _setmode(0, _O_BINARY);
+    _setmode(1, _O_BINARY);
+    _setmode(2, _O_BINARY);
+
+    setvbuf(stdout, NULL, _IONBF, 0);
+    setvbuf(stderr, NULL, _IONBF, 0); 
+    std::ios_base::sync_with_stdio(false);
+
+      // 注册crash自动生成dump（等价core dump）
+    SetUnhandledExceptionFilter([](EXCEPTION_POINTERS *pException) -> LONG {
+        // 生成 dump 文件名，带时间戳
+        char dumpPath[MAX_PATH];
+        std::time_t t = std::time(nullptr);
+        std::tm tm;
+#ifdef _MSC_VER
+        localtime_s(&tm, &t);
+#else
+        tm = *std::localtime(&t);
+#endif
+        std::strftime(dumpPath, sizeof(dumpPath), "crash_%Y%m%d_%H%M%S.dmp", &tm);
+
+        HANDLE hFile = CreateFileA(dumpPath, GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
+        if (hFile != INVALID_HANDLE_VALUE) {
+            MINIDUMP_EXCEPTION_INFORMATION mdei;
+            mdei.ThreadId = GetCurrentThreadId();
+            mdei.ExceptionPointers = pException;
+            mdei.ClientPointers = FALSE;
+            MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, MiniDumpNormal, &mdei, nullptr, nullptr);
+            CloseHandle(hFile);
+        }
+        return EXCEPTION_EXECUTE_HANDLER;
+    });
 #endif//!defined(_WIN32)
 }
 
diff --git a/server/main.cpp b/server/main.cpp
index 051f2bfe..014517da 100644
--- a/server/main.cpp
+++ b/server/main.cpp
@@ -41,9 +41,7 @@
 #include "ZLMVersion.h"
 #endif
 
-#if !defined(_WIN32)
 #include "System.h"
-#endif//!defined(_WIN32)
 
 using namespace std;
 using namespace toolkit;
@@ -259,10 +257,11 @@ int start_main(int argc,char *argv[]) {
             // Start daemon process
             System::startDaemon(kill_parent_if_failed);
         }
+#endif //! defined(_WIN32)
+
         // 开启崩溃捕获等  [AUTO-TRANSLATED:9c7c759c]
         // Enable crash capture, etc.
         System::systemSetup();
-#endif//!defined(_WIN32)
 
         // 启动异步日志线程  [AUTO-TRANSLATED:c93cc6f4]
         // Start asynchronous log thread