node/test/node-api/test_null_init/test_null_init.c

54 lines
2.9 KiB
C

#include <node_api.h>
// This test uses old module initialization style deprecated in current code.
// The goal is to see that all previously compiled code continues to work the
// same way as before.
// The test has a copy of previous macro definitions which are removed from
// the node_api.h file.
#if defined(_MSC_VER)
#if defined(__cplusplus)
#define NAPI_C_CTOR(fn) \
static void NAPI_CDECL fn(void); \
namespace { \
struct fn##_ { \
fn##_() { fn(); } \
} fn##_v_; \
} \
static void NAPI_CDECL fn(void)
#else // !defined(__cplusplus)
#pragma section(".CRT$XCU", read)
// The NAPI_C_CTOR macro defines a function fn that is called during CRT
// initialization.
// C does not support dynamic initialization of static variables and this code
// simulates C++ behavior. Exporting the function pointer prevents it from being
// optimized. See for details:
// https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-initialization?view=msvc-170
#define NAPI_C_CTOR(fn) \
static void NAPI_CDECL fn(void); \
__declspec(dllexport, allocate(".CRT$XCU")) void(NAPI_CDECL * fn##_)(void) = \
fn; \
static void NAPI_CDECL fn(void)
#endif // defined(__cplusplus)
#else
#define NAPI_C_CTOR(fn) \
static void fn(void) __attribute__((constructor)); \
static void fn(void)
#endif
#define NAPI_MODULE_TEST(modname, regfunc) \
EXTERN_C_START \
static napi_module _module = { \
NAPI_MODULE_VERSION, \
0, \
__FILE__, \
regfunc, \
#modname, \
NULL, \
{0}, \
}; \
NAPI_C_CTOR(_register_##modname) { napi_module_register(&_module); } \
EXTERN_C_END
NAPI_MODULE_TEST(NODE_GYP_MODULE_NAME, NULL)