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70 lines
3.1 KiB
C
70 lines
3.1 KiB
C
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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typedef struct napi_module {
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int nm_version;
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unsigned int nm_flags;
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const char* nm_filename;
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void* nm_register_func;
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const char* nm_modname;
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void* nm_priv;
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void* reserved[4];
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} napi_module;
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#ifdef _WIN32
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#define NAPI_EXTERN __declspec(dllexport)
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#define NAPI_CDECL __cdecl
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#else
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#define NAPI_EXTERN __attribute__((visibility("default")))
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#define NAPI_CDECL
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#endif
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NAPI_EXTERN void NAPI_CDECL
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napi_module_register(napi_module* mod);
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#if defined(_MSC_VER)
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#if defined(__cplusplus)
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#define NAPI_C_CTOR(fn) \
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static void NAPI_CDECL fn(void); \
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namespace { \
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struct fn##_ { \
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fn##_() { fn(); } \
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} fn##_v_; \
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} \
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static void NAPI_CDECL fn(void)
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#else // !defined(__cplusplus)
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#pragma section(".CRT$XCU", read)
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// The NAPI_C_CTOR macro defines a function fn that is called during CRT
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// initialization.
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// C does not support dynamic initialization of static variables and this code
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// simulates C++ behavior. Exporting the function pointer prevents it from being
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// optimized. See for details:
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// https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-initialization?view=msvc-170
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#define NAPI_C_CTOR(fn) \
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static void NAPI_CDECL fn(void); \
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__declspec(dllexport, allocate(".CRT$XCU")) void(NAPI_CDECL * fn##_)(void) = \
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fn; \
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static void NAPI_CDECL fn(void)
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#endif // defined(__cplusplus)
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#else
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#define NAPI_C_CTOR(fn) \
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static void fn(void) __attribute__((constructor)); \
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static void fn(void)
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#endif
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#define NAPI_MODULE_TEST(modname, regfunc) \
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static napi_module _module = { \
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1, \
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0, \
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__FILE__, \
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regfunc, \
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#modname, \
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0, \
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{0}, \
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}; \
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NAPI_C_CTOR(_register_##modname) { napi_module_register(&_module); } \
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void* init(void* env __attribute__((unused)), void* exports) {
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return exports;
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}
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NAPI_MODULE_TEST(TEST_NAPI_MODULE_NAME, init)
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