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Add a sanity check to make sure I remember to close all open files

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This commit is contained in:
Eric Fischer 2016-04-13 20:33:01 -07:00
parent 137bb46db5
commit 222735004d
1 changed files with 11 additions and 0 deletions
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11
geojson.c
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@ -2476,6 +2476,7 @@ int main(int argc, char **argv) {
pool_init(&include, 0);
int exclude_all = 0;
int read_parallel = 0;
int files_open_at_start;
for (i = 0; i < 256; i++) {
prevent[i] = 0;
@ -2713,6 +2714,9 @@ int main(int argc, char **argv) {
}
}
files_open_at_start = open("/dev/null", O_RDONLY);
close(files_open_at_start);
if (maxzoom > MAX_ZOOM) {
maxzoom = MAX_ZOOM;
fprintf(stderr, "Highest supported zoom is %d\n", maxzoom);
@ -2789,5 +2793,12 @@ int main(int argc, char **argv) {
muntrace();
#endif
i = open("/dev/null", O_RDONLY);
// i < files_open_at_start is not an error, because reading from a pipe closes stdin
if (i > files_open_at_start) {
fprintf(stderr, "Internal error: did not close all files: %d\n", i);
exit(EXIT_FAILURE);
}
return ret;
}