/*
* call-seq:
* save(filename_base) -> true
*
* Saves the trie data to two files, filename_base.da and filename_base.tail.
* Returns true if saving was successful.
*/
static VALUE rb_trie_save(VALUE self, VALUE filename_base) {
VALUE da_filename = rb_str_dup(filename_base);
rb_str_concat(da_filename, rb_str_new2(".da"));
StringValue(da_filename);
VALUE tail_filename = rb_str_dup(filename_base);
rb_str_concat(tail_filename, rb_str_new2(".tail"));
StringValue(tail_filename);
Trie *trie;
Data_Get_Struct(self, Trie, trie);
FILE *da_file = fopen(RSTRING_PTR(da_filename), "w");
if (da_file == NULL)
raise_ioerror("Error opening .da file for writing.");
if (da_write(trie->da, da_file) != 0)
raise_ioerror("Error writing DArray data.");
fclose(da_file);
FILE *tail_file = fopen(RSTRING_PTR(tail_filename), "w");
if (tail_file == NULL)
raise_ioerror("Error opening .tail file for writing.");
if (tail_write(trie->tail, tail_file) != 0)
raise_ioerror("Error writing Tail data.");
fclose(tail_file);
return Qtrue;
}
/**
* @brief Save a trie to file
*
* @param trie : the trie
*
* @param path : the path to the file
*
* @return 0 on success, non-zero on failure
*
* Create a new file at the given @a path and write @a trie data to it.
* If @a path already exists, its contents will be replaced.
*/
int
trie_save (Trie *trie, const char *path)
{
FILE *file;
int res = 0;
file = fopen (path, "w+");
if (!file)
return -1;
if (alpha_map_write_bin (trie->alpha_map, file) != 0) {
res = -1;
goto exit_file_openned;
}
if (da_write (trie->da, file) != 0) {
res = -1;
goto exit_file_openned;
}
if (tail_write (trie->tail, file) != 0) {
res = -1;
goto exit_file_openned;
}
trie->is_dirty = FALSE;
return 0;
exit_file_openned:
fclose (file);
return res;
}