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Works until we get to concatenated tiles

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This commit is contained in:
Erica Fischer
2023-01-30 14:45:48 -08:00
parent 4caa1d2758
commit f5366eb767
1 changed files with 31 additions and 16 deletions
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tile.cpp
+31 -16
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@@ -67,6 +67,7 @@ struct decompressor {
void begin() {
within = true;
printf("------- BEGIN\n");
zs.zalloc = NULL;
zs.zfree = NULL;
@@ -83,16 +84,6 @@ struct decompressor {
zs.avail_out = 0;
}
void end() {
within = false;
int d = inflateEnd(&zs);
if (d != Z_OK) {
fprintf(stderr, "end decompression: %d %s\n", d, zs.msg);
exit(EXIT_IMPOSSIBLE);
}
}
int fread(void *p, size_t size, size_t nmemb, std::atomic<long long> *geompos) {
zs.next_out = (Bytef *) p;
zs.avail_out = size * nmemb;
@@ -124,6 +115,7 @@ struct decompressor {
if (d == Z_OK) {
// it made some progress
} else if (d == Z_STREAM_END) {
printf("-------------- EOS\n");
// it may have made some progress and now we are done
break;
} else {
@@ -147,6 +139,26 @@ struct decompressor {
return (size * nmemb - zs.avail_out) / size;
}
void end(std::atomic<long long> *geompos) {
#if 0
// consume the trailer of the compressed stream
char s[20];
int n;
while ((n = fread(s, sizeof(char), 20, geompos)) != 0) {
printf("read extra %d\n", n);
}
#endif
within = false;
printf("------- END\n");
int d = inflateEnd(&zs);
if (d != Z_OK) {
fprintf(stderr, "end decompression: %d %s\n", d, zs.msg);
exit(EXIT_IMPOSSIBLE);
}
}
int deserialize_ulong_long(unsigned long long *zigzag, std::atomic<long long> *geompos) {
*zigzag = 0;
int shift = 0;
@@ -1682,16 +1694,18 @@ serial_feature next_feature(decompressor *geoms, std::atomic<long long> *geompos
long long len;
if (geoms->deserialize_long_long(&len, geompos_in) == 0) {
printf("------ <<<<<< deserialization failure, end of tile\n");
if (z != 0) {
geoms->end();
geoms->end(geompos_in);
}
sf.t = -2;
return sf;
}
if (len == 0) {
printf("------ <<<<<< feature len 0, end of tile\n");
if (z != 0) {
geoms->end();
geoms->end(geompos_in);
}
sf.t = -2;
@@ -2193,7 +2207,7 @@ long long write_tile(decompressor *geoms, std::atomic<long long> *geompos_in, ch
if (*geompos_in != og) {
if (z != 0) {
geoms->end();
geoms->end(geompos_in);
geoms->begin();
}
@@ -2683,7 +2697,7 @@ long long write_tile(decompressor *geoms, std::atomic<long long> *geompos_in, ch
int j;
for (j = 0; j < child_shards; j++) {
if (within[j]) {
geomfile[j]->serialize_ulong_long(0, &geompos[j], fname); // EOF
geomfile[j]->serialize_long_long(0, &geompos[j], fname); // EOF
geomfile[j]->end(&geompos[j], fname);
within[j] = 0;
}
@@ -3117,12 +3131,13 @@ void *run_thread(void *vargs) {
if (!deserialize_int_io(geom, &z, &geompos)) {
break;
}
deserialize_uint_io(geom, &x, &geompos);
deserialize_uint_io(geom, &y, &geompos);
printf("------- %d/%d/%d\n", z, x, y);
if (z != arg->zoom) {
fprintf(stderr, "Expected zoom %d, found zoom %d\n", arg->zoom, z);
exit(EXIT_IMPOSSIBLE);
}
deserialize_uint_io(geom, &x, &geompos);
deserialize_uint_io(geom, &y, &geompos);
if (z != 0) {
dc.begin();