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https://github.com/jart/cosmopolitan.git
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a4b455185b
Renaming gc() to _gc() was a mistake since the better thing to do is put it behind the _COSMO_SOURCE macro. We need this change because I haven't wanted to use my amazing garbage collector ever since we renamed it. You now need to define _COSMO_SOURCE yourself when using amalgamation header and cosmocc users need to pass the -mcosmo flag to get the gc() function Some other issues relating to cancelation have been fixed along the way. We're also now putting cosmocc in a folder named `.cosmocc` so it can be more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
23 lines
885 B
C
23 lines
885 B
C
#ifndef COSMOPOLITAN_LIBC_MEM_GC_H_
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#define COSMOPOLITAN_LIBC_MEM_GC_H_
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#ifdef _COSMO_SOURCE
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COSMOPOLITAN_C_START_
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void _gc_free(void *) libcesque;
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void __defer(void *, void *, void *) libcesque;
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void gclongjmp(void *, int) libcesque wontreturn;
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#define gc(THING) defer((void *)_gc_free, (void *)(THING))
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#define _gc(THING) defer((void *)_gc_free, (void *)(THING))
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#define defer(FN, ARG) \
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({ \
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autotype(ARG) Arg = (ARG); \
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/* prevent weird opts like tail call */ \
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__asm__ volatile("" : "+g"(Arg) : : "memory"); \
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__defer(__builtin_frame_address(0), FN, Arg); \
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__asm__ volatile("" : "+g"(Arg) : : "memory"); \
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Arg; \
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})
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COSMOPOLITAN_C_END_
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#endif /* _COSMO_SOURCE */
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#endif /* COSMOPOLITAN_LIBC_MEM_GC_H_ */
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