added source folders

Src/Common/seh.hpp

@@ -0,0 +1,96 @@
+
+#ifndef __FV_SEH_H__
+#define __FV_SEH_H__
+
+#ifdef __WIN32__
+#include <windows.h>
+#include <excpt.h>
+#endif
+
+#include <setjmp.h>
+//#include <fv/defs.hpp>
+
+//NAMESPACE_BEGIN(PU)
+//NAMESPACE_BEGIN(SEH)
+
+#ifdef __WIN32__
+
+class __SEH_HANDLER;
+
+typedef struct tag__SEH_EXCEPTION_REGISTRATION
+{
+    tag__SEH_EXCEPTION_REGISTRATION* prev;
+    PEXCEPTION_HANDLER handler;
+    __SEH_HANDLER* exthandler;
+} __SEH_EXCEPTION_REGISTRATION;
+
+
+class __SEH_HANDLER
+{
+public:
+    __SEH_HANDLER() { }
+    static EXCEPTION_DISPOSITION ExceptionRouter(PEXCEPTION_RECORD pRecord,
+                                                 __SEH_EXCEPTION_REGISTRATION* pReg,
+                                                 PCONTEXT pContext,
+                                                 PEXCEPTION_RECORD pRecord2);
+
+    virtual EXCEPTION_DISPOSITION ExceptionHandler(PEXCEPTION_RECORD pRecord,
+                                                   __SEH_EXCEPTION_REGISTRATION* pReg,
+                                                   PCONTEXT pContext,
+                                                   PEXCEPTION_RECORD pRecord2);
+
+    jmp_buf context;
+    EXCEPTION_RECORD excRecord;
+    CONTEXT excContext;
+};
+
+#define __seh_try                                                      \
+{                                                                      \
+    __SEH_EXCEPTION_REGISTRATION _lseh_er;                             \
+    __SEH_HANDLER _lseh_handler;                                       \
+                                                                       \
+    _lseh_er.handler = \
+        reinterpret_cast<PEXCEPTION_HANDLER>(__SEH_HANDLER::ExceptionRouter);     \
+    _lseh_er.exthandler = &_lseh_handler;                               \
+    asm volatile ("movl %%fs:0, %0" : "=r" (_lseh_er.prev));           \
+    asm volatile ("movl %0, %%fs:0" : : "r" (&_lseh_er));              \
+    int _lseh_setjmp_res = setjmp(_lseh_handler.context);              \
+    while(true) {                                                      \
+        if(_lseh_setjmp_res != 0) {                                    \
+            break;                                                     \
+        }                                                              \
+
+#define __seh_finally                                                  \
+        break;                                                         \
+    }                                                                  \
+    while(true) {
+
+
+#define __seh_except(rec, ctx)                                         \
+        break;                                                         \
+    }                                                                  \
+    PEXCEPTION_RECORD rec = &_lseh_handler.excRecord;                  \
+    PCONTEXT ctx = &_lseh_handler.excContext;                          \
+                                                                       \
+    asm volatile ("movl %0, %%fs:0" : : "r" (_lseh_er.prev));          \
+    if(_lseh_setjmp_res != 0)
+
+#define __seh_end }
+
+#else
+
+#define __seh_try
+
+#define __seh_except(rec, ctx) if(false) {
+
+#define __seh_end }
+
+#define __seh_finally
+
+#endif
+
+//NAMESPACE_END(SEH)
+//NAMESPACE_END(PU)
+
+#endif
+