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faae44713b
We have the FEERATE_FLOOR constant if you don't care, but usually you want to use the current bitcoind lower limit, so call get_feerate_floor() (which is currently the same, but coming!). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
44 lines
907 B
C
44 lines
907 B
C
#include "config.h"
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#include <assert.h>
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#include <bitcoin/feerate.h>
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u32 feerate_from_style(u32 feerate, enum feerate_style style)
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{
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/* Make sure it's called somewhere! */
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assert(feerate_floor_check() == FEERATE_FLOOR);
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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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