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This is a GCC extension, but avoids much other messiness. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
27 lines
843 B
C
27 lines
843 B
C
#ifndef LIGHTNING_COMMON_AUTODATA_H
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#define LIGHTNING_COMMON_AUTODATA_H
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#include "config.h"
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#include <ccan/compiler/compiler.h>
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#include <ccan/cppmagic/cppmagic.h>
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#define AUTODATA_TYPE(name, type) \
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static inline void register_autotype_##name(const type *t) { \
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autodata_register_(#name, t); \
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} \
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typedef type autodata_##name##_
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/* This uses GCC's constructor attribute */
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#define AUTODATA(name, ptr) \
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static __attribute__((constructor)) NEEDED \
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void CPPMAGIC_GLUE2(register_one_##name,__COUNTER__)(void) { \
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register_autotype_##name(ptr); \
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}
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#define autodata_get(name, nump) \
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((autodata_##name##_ **)autodata_get_(#name, (nump)))
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void autodata_register_(const char *typename, const void *ptr);
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void *autodata_get_(const char *typename, size_t *nump);
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#endif /* LIGHTNING_COMMON_AUTODATA_H */
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