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dump.c
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dump.c
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#include <stdio.h>
#include "whistlepig.h"
#define isempty(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&2)
#define isdel(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&1)
#define KEY(h, i) &(h->pool[h->keys[i]])
RAISING_STATIC(dump_posting_list(wp_segment* s, uint32_t offset)) {
posting po;
while(offset != OFFSET_NONE) {
RELAY_ERROR(wp_segment_read_posting(s, offset, &po, 1));
printf(" @%u doc %u:", offset, po.doc_id);
for(uint32_t i = 0; i < po.num_positions; i++) {
printf(" %d", po.positions[i]);
}
printf("\n");
offset = po.next_offset;
free(po.positions);
}
return NO_ERROR;
}
RAISING_STATIC(dump(wp_segment* segment)) {
termhash* th = MMAP_OBJ(segment->termhash, termhash);
stringmap* sh = MMAP_OBJ(segment->stringmap, stringmap);
for(uint32_t i = 0; i < th->n_buckets; i++) {
if(isempty(th->flags, i)); // do nothing
else if(isdel(th->flags, i)) printf("%u: [deleted]", i);
else {
term t = th->keys[i];
const char* field = stringmap_int_to_string(sh, t.field_s);
const char* word = stringmap_int_to_string(sh, t.word_s);
printf("%u: %s:'%s'\n", i, field, word);
RELAY_ERROR(dump_posting_list(segment, th->vals[i]));
}
}
return NO_ERROR;
}
int main(int argc, char* argv[]) {
if(argc != 2) {
fprintf(stderr, "Usage: %s <segment filename>\n", argv[0]);
return -1;
}
wp_index* index;
DIE_IF_ERROR(wp_index_load(&index, argv[1]));
DIE_IF_ERROR(wp_index_dumpinfo(index, stdout));
for(int i = 0; i < index->num_segments; i++) {
printf("\nsegment %d details:\n", i);
DIE_IF_ERROR(dump(&index->segments[i]));
}
DIE_IF_ERROR(wp_index_unload(index));
return 0;
}