57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
// #include "packet.h"
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// PACKET_GENERATE_ENCODE(1, 2, )
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#include "packet.h"
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#include "cwpack/cwpack.h"
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#define PKT_01_WELCOME_ID 1
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#define PKT_01_WELCOME_ARGS 2
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size_t pkt_01_welcome_encode(pkt_01_welcome *table) {
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cw_pack_context pc = {0};
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cw_pack_context_init(&pc, buffer, 20, 0);
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cw_pack_array_size(&pc, 1 + PKT_01_WELCOME_ARGS);
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cw_pack_signed(&pc, PKT_01_WELCOME_ID);
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cw_pack_unsigned(&pc, chunk_size);
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cw_pack_unsigned(&pc, chunk_amount);
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return pc.current - pc.start; /* length */
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}
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int32_t pkt_01_welcome_decode(pkt_01_welcome *table, pkt_header *header) {
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cw_unpack_context uc = {0};
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cw_unpack_context_init(&uc, header->data, header->datalen, 0);
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cw_unpack_next(&uc);
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if (uc.item.type != CWP_ITEM_ARRAY || uc.item.as.array.size != PKT_01_WELCOME_ARGS) {
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return -1;//todo: error
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}
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cw_unpack_next(&uc);
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if (uc.item.type != CWP_ITEM_POSITIVE_INTEGER) return -1; // expected chunk size
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table->chunk_size = uc.item.as.u64;
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cw_unpack_next(&uc);
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if (uc.item.type != CWP_ITEM_POSITIVE_INTEGER) return -1; // expected chunk amount
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table->chunk_amount = uc.item.as.u64;
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if (uc.return_code != CWP_RC_OK) return -1; // unpacking failed somwwhere
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cw_unpack_next(&uc);
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if (uc.return_code != CWP_RC_END_OF_INPUT) return -1; // not finished yet but should be?
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return 0;
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}
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int32_t pkt_01_handler(pkt_header *header) {
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pkt_01_welcome table;
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pkt_01_welcome_decode(&table, header);
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zpl_printf("we received: chunk_size: %d and chunk_amount: %d\n", table.chunk_size, table.chunk_amount);
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// do STUFF
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return 0;
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}
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