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75 lines
1.2 KiB
C++
75 lines
1.2 KiB
C++
#include "llarp/iwp/xmit.hpp"
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#include "llarp/endian.h"
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xmit::xmit(byte_t *ptr)
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{
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memcpy(buffer, ptr, sizeof(buffer));
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}
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xmit::xmit(const xmit &other)
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{
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memcpy(buffer, other.buffer, sizeof(buffer));
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}
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void
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xmit::set_info(const byte_t *hash, uint64_t id, uint16_t fragsz,
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uint16_t lastsz, uint8_t numfrags, uint8_t flags)
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{
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memcpy(buffer, hash, 32);
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// memcpy(buffer + 32, &id, 8);
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htobe64buf(buffer + 32, id);
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// memcpy(buffer + 40, &fragsz, 2);
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htobe16buf(buffer + 40, fragsz);
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// memcpy(buffer + 42, &lastsz, 2);
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htobe16buf(buffer + 42, lastsz);
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buffer[44] = 0;
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buffer[45] = 0;
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buffer[46] = numfrags;
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buffer[47] = flags;
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}
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const byte_t *
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xmit::hash() const
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{
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return &buffer[0];
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}
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uint64_t
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xmit::msgid() const
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{
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return bufbe64toh(buffer + 32);
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}
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// size of each full fragment
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uint16_t
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xmit::fragsize() const
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{
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return bufbe16toh(buffer + 40);
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}
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// number of full fragments
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uint8_t
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xmit::numfrags() const
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{
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return buffer[46];
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}
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// size of the entire message
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size_t
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xmit::totalsize() const
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{
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return (fragsize() * numfrags()) + lastfrag();
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}
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// size of the last fragment
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uint16_t
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xmit::lastfrag() const
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{
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return bufbe16toh(buffer + 42);
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}
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uint8_t
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xmit::flags()
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{
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return buffer[47];
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}
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