/**
* Encodes and appends the array `array` to `w`
*/
void watchman_dump_array(watchman_t *w, VALUE array) {
long i;
watchman_append(w, &watchman_array_marker, sizeof(watchman_array_marker));
watchman_dump_int(w, RARRAY_LEN(array));
for (i = 0; i < RARRAY_LEN(array); i++) {
watchman_dump(w, rb_ary_entry(array, i));
}
}
/**
* RubyWatchman.dump(serializable)
*
* Converts the Ruby object, `serializable`, into a binary string in the
* Watchman binary protocol format.
*
* Examples of serializable objects include arrays, hashes, strings, numbers
* (integers, floats), booleans, and nil.
*/
VALUE RubyWatchman_dump(VALUE self, VALUE serializable) {
watchman_t *w = watchman_init();
watchman_dump(w, serializable);
// update header with final length information
uint64_t *len =
(uint64_t *)(w->data + sizeof(WATCHMAN_HEADER) - sizeof(uint64_t) - 1);
*len = w->len - sizeof(WATCHMAN_HEADER) + 1;
// prepare final return value
VALUE serialized = rb_str_buf_new(w->len);
rb_str_buf_cat(serialized, (const char*)w->data, w->len);
watchman_free(w);
return serialized;
}
/**
* Helper method that encodes and appends a key/value pair (`key`, `value`) from
* a hash to the watchman_t struct passed in via `data`
*/
int watchman_dump_hash_iterator(VALUE key, VALUE value, VALUE data) {
watchman_t *w = (watchman_t *)data;
watchman_dump_string(w, StringValue(key));
watchman_dump(w, value);
return ST_CONTINUE;
}
