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Added a METHOD2() macro that implements a method for two different interfaces

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This commit is contained in:
Martin Willi
2010-01-21 14:42:08 +01:00
parent 47498044c3
commit 23d2bf84a3
1 changed files with 11 additions and 1 deletions
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src/libstrongswan/utils.h
+11 -1
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@@ -123,7 +123,17 @@
* _name is provided a function pointer, but will get optimized out by GCC. * _name is provided a function pointer, but will get optimized out by GCC.
*/ */
#define METHOD(iface, name, ret, this, ...) \ #define METHOD(iface, name, ret, this, ...) \
static ret name(union {iface *_public; this;} __attribute__((transparent_union)), ##__VA_ARGS__); \ static ret name(union {iface *_public; this;} \
__attribute__((transparent_union)), ##__VA_ARGS__); \
const static typeof(name) *_##name = (const typeof(name)*)name; \
static ret name(this, ##__VA_ARGS__)
/**
* Same as METHOD(), but is defined for two public interfaces.
*/
#define METHOD2(iface1, iface2, name, ret, this, ...) \
static ret name(union {iface1 *_public1; iface2 *_public2; this;} \
__attribute__((transparent_union)), ##__VA_ARGS__); \
const static typeof(name) *_##name = (const typeof(name)*)name; \ const static typeof(name) *_##name = (const typeof(name)*)name; \
static ret name(this, ##__VA_ARGS__) static ret name(this, ##__VA_ARGS__)