84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
#include <stdlib.h>
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#include <memory.h>
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#define OPTPARSE_IMPLEMENTATION
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#define OPTPARSE_API static
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#include "common.h"
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#include "index.h"
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typedef struct {
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char* index;
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} opts_t;
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opts_t options;
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btree_t tree;
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void init_args(int args, char* argv[])
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{
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optparse_t opts;
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optparse_init(&opts, argv);
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for (char opt; opt != -1; opt = optparse(&opts, "qv")) {
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switch (opt) {
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case 'q':
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verbosity--;
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break;
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case 'v':
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verbosity++;
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break;
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}
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}
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options.index = optparse_arg(&opts);
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}
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void help(const char* name) {
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printf(
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"%s - some help"
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,
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name
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);
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}
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void print_page(page_t page)
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{
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if (!page) return;
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char buffer[PAGE_SIZE];
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char prefix[1024] = {};
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file_read(tree.file, page, buffer, PAGE_SIZE);
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btree_node_t node;
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memcpy(&node.header, buffer, sizeof(node.header));
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memcpy(&node.entries, buffer + sizeof(node.header), NODE_SIZE_MAX);
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btree_entry_t *entry;
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for (int i = 0; i < node.header.entries; i++) {
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entry = btree_get_entry(&node, i);
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print_page(entry->left);
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printf("%u\n", entry->key);
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}
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print_page(entry->right);
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}
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int main(int argc, char* argv[])
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{
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if (argc < 2) {
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help(argv[0]);
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return 0;
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}
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init_args(argc, argv);
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if (btree_open(&tree, options.index) != 0) {
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fprintf(stderr, "Cannot open indes %s for reading.", options.index);
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return 1;
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}
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print_page(tree.header.root);
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return EXIT_SUCCESS;
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}
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