diff options
Diffstat (limited to 'include/asterisk/optional_api.h')
| -rw-r--r-- | include/asterisk/optional_api.h | 82 |
1 files changed, 54 insertions, 28 deletions
diff --git a/include/asterisk/optional_api.h b/include/asterisk/optional_api.h index 394aed0e4..1118dc7cd 100644 --- a/include/asterisk/optional_api.h +++ b/include/asterisk/optional_api.h @@ -178,10 +178,7 @@ void ast_optional_api_unuse(const char *symname, ast_optional_fn *optional_ref, #define AST_OPTIONAL_API_NAME(name) __##name -#if defined(AST_API_MODULE) -/* Module defining the API */ - -#define AST_OPTIONAL_API_IMPL_INIT(name) \ +#define AST_OPTIONAL_API_INIT_IMPL(name) \ static void __attribute__((constructor)) __init__##name##_impl(void) { \ ast_optional_api_provide(#name, \ (ast_optional_fn)AST_OPTIONAL_API_NAME(name)); \ @@ -191,22 +188,7 @@ void ast_optional_api_unuse(const char *symname, ast_optional_fn *optional_ref, (ast_optional_fn)AST_OPTIONAL_API_NAME(name)); \ } -#define AST_OPTIONAL_API(result, name, proto, stub) \ - result AST_OPTIONAL_API_NAME(name) proto; \ - static attribute_unused typeof(AST_OPTIONAL_API_NAME(name)) * const \ - name = AST_OPTIONAL_API_NAME(name); \ - AST_OPTIONAL_API_IMPL_INIT(name) - -#define AST_OPTIONAL_API_ATTR(result, attr, name, proto, stub) \ - result __attribute__((attr)) AST_OPTIONAL_API_NAME(name) proto; \ - static attribute_unused typeof(AST_OPTIONAL_API_NAME(name)) * const \ - name = AST_OPTIONAL_API_NAME(name); \ - AST_OPTIONAL_API_IMPL_INIT(name) - -#else -/* Module using the API */ - -#define AST_OPTIONAL_API_INIT(name) \ +#define AST_OPTIONAL_API_INIT_USER(name) \ static void __attribute__((constructor)) __init__##name(void) { \ ast_optional_api_use(#name, (ast_optional_fn *)&name, \ (ast_optional_fn)__stub__##name, \ @@ -217,19 +199,31 @@ void ast_optional_api_unuse(const char *symname, ast_optional_fn *optional_ref, AST_MODULE); \ } -#define AST_OPTIONAL_API(result, name, proto, stub) \ +#define AST_OPTIONAL_API_IMPL(result, name, proto, stub) \ + result AST_OPTIONAL_API_NAME(name) proto; \ + static attribute_unused typeof(AST_OPTIONAL_API_NAME(name)) * const \ + name = AST_OPTIONAL_API_NAME(name); \ + AST_OPTIONAL_API_INIT_IMPL(name) + +#define AST_OPTIONAL_API_USER(result, name, proto, stub) \ static result __stub__##name proto stub; \ static attribute_unused \ typeof(__stub__##name) * name; \ - AST_OPTIONAL_API_INIT(name) + AST_OPTIONAL_API_INIT_USER(name) + -#define AST_OPTIONAL_API_ATTR(result, attr, name, proto, stub) \ +/* AST_OPTIONAL_API_ATTR */ +#define AST_OPTIONAL_API_ATTR_IMPL(result, attr, name, proto, stub) \ + result __attribute__((attr)) AST_OPTIONAL_API_NAME(name) proto; \ + static attribute_unused typeof(AST_OPTIONAL_API_NAME(name)) * const \ + name = AST_OPTIONAL_API_NAME(name); \ + AST_OPTIONAL_API_INIT_IMPL(name) + +#define AST_OPTIONAL_API_ATTR_USER(result, attr, name, proto, stub) \ static __attribute__((attr)) result __stub__##name proto stub; \ static attribute_unused __attribute__((attr)) \ typeof(__stub__##name) * name; \ - AST_OPTIONAL_API_INIT(name) - -#endif /* defined(AST_API_MODULE) */ + AST_OPTIONAL_API_INIT_USER(name) #else /* defined(OPTIONAL_API) */ @@ -245,6 +239,38 @@ void ast_optional_api_unuse(const char *symname, ast_optional_fn *optional_ref, #endif /* defined(OPTIONAL_API) */ -#undef AST_API_MODULE - #endif /* __ASTERISK_OPTIONAL_API_H */ + +/* + * Some Asterisk sources are both consumer and provider of optional API's. The + * following definitons are intentionally outside the include protected portion + * of this header so AST_OPTIONAL_API and AST_OPTIONAL_API_ATTR can be redefined + * each time the header is included. This also ensures that AST_API_MODULE is + * undefined after every include of this header. + */ +#if defined(OPTIONAL_API) + +#undef AST_OPTIONAL_API +#undef AST_OPTIONAL_API_ATTR + +#if defined(AST_API_MODULE) + +#define AST_OPTIONAL_API(result, name, proto, stub) \ + AST_OPTIONAL_API_IMPL(result, name, proto, stub) + +#define AST_OPTIONAL_API_ATTR(result, attr, name, proto, stub) \ + AST_OPTIONAL_API_ATTR_IMPL(result, attr, name, proto, stub) + +#else + +#define AST_OPTIONAL_API(result, name, proto, stub) \ + AST_OPTIONAL_API_USER(result, name, proto, stub) + +#define AST_OPTIONAL_API_ATTR(result, attr, name, proto, stub) \ + AST_OPTIONAL_API_ATTR_USER(result, attr, name, proto, stub) + +#endif /* defined(AST_API_MODULE) */ + +#endif /* defined(OPTIONAL_API) */ + +#undef AST_API_MODULE |