51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#include <bitcoin/feerate.h>
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#include <bitcoin/varint.h>
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#include <limits.h>
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#include <stdlib.h>
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u32 feerate_from_style(u32 feerate, enum feerate_style style)
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{
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switch (style) {
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case FEERATE_PER_KSIPA:
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return feerate;
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case FEERATE_PER_KBYTE:
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/* Everyone uses satoshi per kbyte, but we use satoshi per ksipa
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* (don't round down to zero though)! */
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return (feerate + 3) / 4;
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}
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abort();
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}
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u32 feerate_to_style(u32 feerate_perkw, enum feerate_style style)
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{
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switch (style) {
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case FEERATE_PER_KSIPA:
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return feerate_perkw;
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case FEERATE_PER_KBYTE:
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if ((u64)feerate_perkw * 4 > UINT_MAX)
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return UINT_MAX;
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return feerate_perkw * 4;
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}
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abort();
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}
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const char *feerate_style_name(enum feerate_style style)
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{
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switch (style) {
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case FEERATE_PER_KBYTE:
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return "perkb";
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case FEERATE_PER_KSIPA:
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return "perkw";
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}
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abort();
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}
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size_t common_weight(size_t num_inputs, size_t num_outputs)
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{
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/*(nVersion + num inputs + num outputs + locktime) * 4
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* + SegWit marker + SegWit flag */
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return (4 + varint_size(num_inputs) +
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varint_size(num_outputs) + 4) * 4
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+ 1 + 1;
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}
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