36 lines
849 B
C
36 lines
849 B
C
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#define BUFFER(type) struct { type *data; uint used, size; }
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#define BUFFER_SIZE(v) ((v).size * sizeof(* (v).data))
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#define BUFFER_INIT(v,pool,isize) \
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({ \
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(v).used = 0; \
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(v).size = (isize); \
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(v).data = mb_alloc(pool, BUFFER_SIZE(v)); \
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})
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#define BUFFER_SET(v,nsize) \
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({ \
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(v).used = (nsize); \
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if ((v).used > (v).size) \
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buffer_realloc((void **) &((v).data), &((v).size), (v).used, sizeof(* (v).data)); \
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})
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#define BUFFER_INC(v,step) \
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({ \
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uint _o = (v).used; \
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BUFFER_SET(v, (v).used + (step)); \
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(v).data + _o; \
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})
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#define BUFFER_DEC(v,step) ({ (v).used -= (step); })
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#define BUFFER_PUSH(v) (*BUFFER_INC(v,1))
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#define BUFFER_POP(v) BUFFER_DEC(v,1)
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#define BUFFER_FLUSH(v) ({ (v).used = 0; })
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