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Put the suggestions in order

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This commit is contained in:
Eric Fischer 2014-10-08 16:59:00 -07:00
parent 67b8b984e5
commit 389c89bdf9
1 changed files with 32 additions and 4 deletions
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36
tile.cc
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@ -779,9 +779,28 @@ mapnik::vector::tile create_tile(char *layername, int line_detail, std::vector<c
return tile;
}
void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file_keys, char *layername, int line_detail) {
struct pool_val *pv;
struct sll {
char *name;
long long val;
bool operator< (const sll &o) const {
if (this->val < o.val) {
return true;
} else {
return false;
}
}
sll(char *name, long long val) {
this->name = name;
this->val = val;
}
};
void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file_keys, char *layername, int line_detail, long long orig) {
std::vector<sll> options;
struct pool_val *pv;
for (pv = file_keys->head; pv != NULL; pv = pv->next) {
struct pool keys, values;
pool_init(&keys, 0);
@ -803,15 +822,21 @@ void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file
tile.SerializeToString(&s);
compress(s, compressed);
fprintf(stderr, "with -x %s, size would be %lld\n", pv->s, (long long) s.size());
options.push_back(sll(pv->s, compressed.size()));
pool_free(&values);
pool_free(&keys);
}
std::sort(options.begin(), options.end());
for (unsigned i = 0; i < options.size() && i < 10; i++) {
fprintf(stderr, "with -x %s, size would be %lld, for a savings of %lld\n", options[i].name, options[i].val, orig - options[i].val);
}
}
long long write_tile(struct index *start, struct index *end, char *metabase, unsigned *file_bbox, int z, unsigned tx, unsigned ty, int detail, int basezoom, struct pool *file_keys, char *layername, sqlite3 *outdb, double droprate) {
int line_detail;
static bool evaluated = false;
for (line_detail = detail; line_detail >= 7; line_detail--) {
GOOGLE_PROTOBUF_VERIFY_VERSION;
@ -935,7 +960,10 @@ long long write_tile(struct index *start, struct index *end, char *metabase, uns
if (compressed.size() > 500000) {
fprintf(stderr, "tile %d/%u/%u size is %lld with detail %d, >500000 \n", z, tx, ty, (long long) compressed.size(), line_detail);
evaluate(features, metabase, file_keys, layername, line_detail);
if (!evaluated) {
evaluated = true;
evaluate(features, metabase, file_keys, layername, line_detail, compressed.size());
}
} else {
mbtiles_write_tile(outdb, z, tx, ty, compressed.data(), compressed.size());
return count;