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Factor out duplicated code

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This commit is contained in:
Erica Fischer
2023-08-21 12:27:52 -07:00
parent 629d89adbe
commit 8850febc0f
1 changed files with 11 additions and 39 deletions
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tile-join.cpp
+11 -39
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@@ -516,18 +516,6 @@ struct reader *begin_reading(char *fname) {
r->dirtiles = enumerate_dirtiles(fname, minzoom, maxzoom);
r->dirbase = fname;
if (r->dirtiles.size() == 0) {
r->zoom = 32;
} else {
r->zoom = r->dirtiles[0].z;
r->x = r->dirtiles[0].x;
r->y = r->dirtiles[0].y;
r->sorty = (1LL << r->zoom) - 1 - r->y;
r->data = dir_read_tile(r->dirbase, r->dirtiles[0]);
r->dirtiles.erase(r->dirtiles.begin());
}
} else if (pmtiles_has_suffix(fname)) {
int pmtiles_fd = open(fname, O_RDONLY | O_CLOEXEC);
r->pmtiles_map = (char *) mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, pmtiles_fd, 0);
@@ -543,18 +531,6 @@ struct reader *begin_reading(char *fname) {
r->pmtiles_entries = pmtiles_entries_tms(r->pmtiles_map, minzoom, maxzoom);
std::reverse(r->pmtiles_entries.begin(), r->pmtiles_entries.end());
if (r->pmtiles_entries.size() == 0) {
r->zoom = 32;
} else {
r->zoom = r->pmtiles_entries.back().z;
r->x = r->pmtiles_entries.back().x;
r->y = r->pmtiles_entries.back().y;
r->sorty = (1LL << r->zoom) - 1 - r->y;
r->data = std::string(r->pmtiles_map + r->pmtiles_entries.back().offset, r->pmtiles_entries.back().length);
r->pmtiles_entries.pop_back();
}
} else {
sqlite3 *db;
@@ -580,22 +556,12 @@ struct reader *begin_reading(char *fname) {
r->db = db;
r->stmt = stmt;
r->next = NULL;
if (sqlite3_step(stmt) == SQLITE_ROW) {
r->zoom = sqlite3_column_int(stmt, 0);
r->x = sqlite3_column_int(stmt, 1);
r->sorty = sqlite3_column_int(stmt, 2);
r->y = (1LL << r->zoom) - 1 - r->sorty;
const char *data = (const char *) sqlite3_column_blob(stmt, 3);
size_t len = sqlite3_column_bytes(stmt, 3);
r->data = std::string(data, len);
} else {
r->zoom = 32;
}
}
// The reason this prefetches is so the reader queue can be
// priority-ordered, so the one with the next relevant tile
// is first in line.
r->advance();
return r;
}
@@ -918,6 +884,9 @@ void decode(struct reader *readers, std::map<std::string, layermap_entry> &layer
}
}
// The reason this prefetches is so the reader queue can be
// priority-ordered, so the one with the next relevant tile
// is first in line.
r->advance();
// put the reader back onto the queue,
@@ -1307,6 +1276,8 @@ int main(int argc, char **argv) {
while (getline(read_file, sa)) {
char *c = const_cast<char *>(sa.c_str());
reader *r = begin_reading(c);
// put the new reader in priority order
struct reader **rr;
for (rr = &readers; *rr != NULL; rr = &((*rr)->next)) {
if (*r < **rr) {
@@ -1397,8 +1368,9 @@ int main(int argc, char **argv) {
if (filearg == 0) {
for (i = optind; i < argc; i++) {
reader *r = begin_reading(argv[i]);
struct reader **rr;
// put the new reader in priority order
struct reader **rr;
for (rr = &readers; *rr != NULL; rr = &((*rr)->next)) {
if (*r < **rr) {
break;