136 lines
2.6 KiB
C
136 lines
2.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "book.capnp.h"
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#include "book.h"
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static void usage(char *app) {
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fprintf(stderr, "usage: %s encode | %s decode\n",
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app, app);
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}
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int encode() {
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struct capn c;
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book_t book;
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char *title = "Book title";
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char *authors[2] = {
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"author1",
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"author2"
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};
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uint32_t magic1[2] = {
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1101,1012
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};
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chapter_t chapters_[3] = {
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{.caption ="Chapter1",
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.start =1,
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.end=99},
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{.caption = "Chapter2",
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.start = 100,
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.end = 150},
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{.caption = "Chapter3",
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.start = 151,
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.end=199}
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};
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chapter_t* chapters[3] = {
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&chapters_[0], &chapters_[1], &chapters_[2]
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};
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publish_t publish = {
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.isbn = 335677,
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.year =2001
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};
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struct capn_segment *cs;
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struct Book b;
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Book_ptr p;
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book.title = title;
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book.n_authors = 2;
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book.authors = authors;
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book.n_chapters = 3;
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book.chapters_ = &chapters[0];
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book.publish = &publish ;
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book.nulldata = NULL;
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book.n_magic1 = 2;
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book.magic_1 = &magic1[0];
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book.description = NULL;
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book.acquire_method = Book_acquire_buy;
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book.acquire.buy = "bought from Xinhua book store";
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capn_init_malloc(&c);
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cs = capn_root(&c).seg;
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encode_Book_ptr(cs, &p, &book);
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capn_setp(capn_root(&c), 0, p.p);
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capn_write_fd(&c, write, 1, 0);
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capn_free(&c);
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return 0;
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}
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int decode() {
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struct capn c;
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Book_ptr p;
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book_t *book;
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int i;
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capn_init_fp(&c, stdin, 0);
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p.p = capn_getp(capn_root(&c), 0, 1);
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decode_Book_ptr(&book, p);
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printf("title: %s\n", book->title);
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printf("authors(%d):\n", book->n_authors);
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for(i = 0; i < book->n_authors; i ++) {
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printf("\t%s\n", book->authors[i]);
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}
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printf("chapters(%d):\n", book->n_chapters);
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for(i = 0; i < book->n_chapters; i ++) {
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printf("\tcaption: %s\n", book->chapters_[i]->caption);
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printf("\tfrom %d to %d\n",
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book->chapters_[i]->start,
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book->chapters_[i]->end);
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}
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printf("ISBN: %lu year: %u\n",
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book->publish->isbn,
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book->publish->year);
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printf("magic1:\n");
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for(i = 0; i < book->n_magic1; i ++) {
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printf("\t%d\n", book->magic_1[i]);
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}
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if (book->acquire_method == Book_acquire_buy) {
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printf("%s\n", book->acquire.buy);
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}
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else {
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printf("%s\n", book->acquire.donation);
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}
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free_Book_ptr(&book);
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capn_free(&c);
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return 0;
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}
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int main(int argc,char *argv[]) {
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if (argc != 2) {
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usage(argv[0]);
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return -1;
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}
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if ( strcmp(argv[1],"encode") == 0) {
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encode();
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}
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else {
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decode();
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}
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return 0;
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}
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