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FFI: Save errno/GetLastError() around allocations, hooks etc.

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This commit is contained in:
Mike Pall
2011-05-08 22:33:04 +02:00
parent 87553d9e77
commit 77ba7726e2
4 changed files with 72 additions and 5 deletions
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17
src/lj_dispatch.h
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@@ -69,4 +69,21 @@ LJ_FUNCA void LJ_FASTCALL lj_dispatch_ins(lua_State *L, const BCIns *pc);
LJ_FUNCA ASMFunction LJ_FASTCALL lj_dispatch_call(lua_State *L, const BCIns*pc);
LJ_FUNCA void LJ_FASTCALL lj_dispatch_return(lua_State *L, const BCIns *pc);
#if LJ_HASFFI && !defined(_BUILDVM_H)
/* Save/restore errno and GetLastError() around hooks, exits and recording. */
#include <errno.h>
#if LJ_TARGET_WINDOWS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#define ERRNO_SAVE int olderr = errno; DWORD oldwerr = GetLastError();
#define ERRNO_RESTORE errno = olderr; SetLastError(oldwerr);
#else
#define ERRNO_SAVE int olderr = errno;
#define ERRNO_RESTORE errno = olderr;
#endif
#else
#define ERRNO_SAVE
#define ERRNO_RESTORE
#endif
#endif