swh:1:snp:ff2a11cd2e44dd19ec3814028ef2ce6605664e63
Tip revision: a383f5c725f9f2d607c94fcc71a02a9c3448748a authored by Eric Fischer on 18 April 2018, 17:48:13 UTC
Use an exit status of 100 if some but not all zoom levels succeeded
Use an exit status of 100 if some but not all zoom levels succeeded
Tip revision: a383f5c
enumerate.cpp
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sqlite3.h>
void enumerate(char *fname) {
sqlite3 *db;
if (sqlite3_open(fname, &db) != SQLITE_OK) {
fprintf(stderr, "%s: %s\n", fname, sqlite3_errmsg(db));
exit(EXIT_FAILURE);
}
char *err = NULL;
if (sqlite3_exec(db, "PRAGMA integrity_check;", NULL, NULL, &err) != SQLITE_OK) {
fprintf(stderr, "%s: integrity_check: %s\n", fname, err);
exit(EXIT_FAILURE);
}
const char *sql = "SELECT zoom_level, tile_column, tile_row from tiles order by zoom_level, tile_column, tile_row;";
sqlite3_stmt *stmt;
if (sqlite3_prepare_v2(db, sql, -1, &stmt, NULL) != SQLITE_OK) {
fprintf(stderr, "%s: select failed: %s\n", fname, sqlite3_errmsg(db));
exit(EXIT_FAILURE);
}
while (sqlite3_step(stmt) == SQLITE_ROW) {
long long zoom = sqlite3_column_int(stmt, 0);
long long x = sqlite3_column_int(stmt, 1);
long long y = sqlite3_column_int(stmt, 2);
if (zoom < 0 || zoom > 31) {
fprintf(stderr, "Corrupt mbtiles file: impossible zoom level %lld\n", zoom);
exit(EXIT_FAILURE);
}
y = (1LL << zoom) - 1 - y;
printf("%s %lld %lld %lld\n", fname, zoom, x, y);
}
sqlite3_finalize(stmt);
if (sqlite3_close(db) != SQLITE_OK) {
fprintf(stderr, "%s: could not close database: %s\n", fname, sqlite3_errmsg(db));
exit(EXIT_FAILURE);
}
}
void usage(char **argv) {
fprintf(stderr, "Usage: %s file.mbtiles ...\n", argv[0]);
exit(EXIT_FAILURE);
}
int main(int argc, char **argv) {
extern int optind;
// extern char *optarg;
int i;
while ((i = getopt(argc, argv, "")) != -1) {
usage(argv);
}
if (optind >= argc) {
usage(argv);
}
for (i = optind; i < argc; i++) {
enumerate(argv[i]);
}
return 0;
}