grn_rc
grn_ja_truncate(grn_ctx *ctx, grn_ja *ja)
{
grn_rc rc;
char *path;
unsigned int max_element_size;
uint32_t flags;
if ((path = (char *)grn_io_path(ja->io)) && *path != '\0') {
if (!(path = GRN_STRDUP(path))) {
ERR(GRN_NO_MEMORY_AVAILABLE, "cannot duplicate path.");
return GRN_NO_MEMORY_AVAILABLE;
}
} else {
path = NULL;
}
max_element_size = ja->header->max_element_size;
flags = ja->header->flags;
if ((rc = grn_io_close(ctx, ja->io))) { goto exit; }
ja->io = NULL;
if (path && (rc = grn_io_remove(ctx, path))) { goto exit; }
if (!_grn_ja_create(ctx, ja, path, max_element_size, flags)) {
rc = GRN_UNKNOWN_ERROR;
}
exit:
if (path) { GRN_FREE(path); }
return rc;
}
grn_rc
grn_ra_truncate(grn_ctx *ctx, grn_ra *ra)
{
grn_rc rc;
char *path;
unsigned int element_size;
if ((path = (char *)grn_io_path(ra->io)) && *path != '\0') {
if (!(path = GRN_STRDUP(path))) {
ERR(GRN_NO_MEMORY_AVAILABLE, "cannot duplicate path.");
return GRN_NO_MEMORY_AVAILABLE;
}
} else {
path = NULL;
}
element_size = ra->header->element_size;
if ((rc = grn_io_close(ctx, ra->io))) { goto exit; }
ra->io = NULL;
if (path && (rc = grn_io_remove(ctx, path))) { goto exit; }
if (!_grn_ra_create(ctx, ra, path, element_size)) {
rc = GRN_UNKNOWN_ERROR;
}
exit:
if (path) { GRN_FREE(path); }
return rc;
}
grn_rc
grn_dat_remove(grn_ctx *ctx, const char *path)
{
if (!path) {
ERR(GRN_INVALID_ARGUMENT, "path is null");
return GRN_INVALID_ARGUMENT;
}
grn_dat * const dat = grn_dat_open(ctx, path);
if (!dat) {
return ctx->rc;
}
const uint32_t file_id = dat->header->file_id;
grn_dat_close(ctx, dat);
/*
grn_dat_remove() tries to remove (file_id + 1)th trie file because
grn::dat::Trie::create() might leave an incomplete file on failure.
*/
char trie_path[PATH_MAX];
grn_dat_generate_trie_path(path, trie_path, file_id + 1);
grn_dat_remove_file(ctx, trie_path);
for (uint32_t i = file_id; i > 0; --i) {
grn_dat_generate_trie_path(path, trie_path, i);
if (!grn_dat_remove_file(ctx, trie_path)) {
break;
}
}
/*
grn_io_remove() reports an error when it fails to remove `path'.
*/
return grn_io_remove(ctx, path);
}
grn_rc
grn_ja_remove(grn_ctx *ctx, const char *path)
{
if (!path) { return GRN_INVALID_ARGUMENT; }
return grn_io_remove(ctx, path);
}
