avro_schema_t schema_for_table_schema() {
avro_schema_t record_schema = avro_schema_record("TableSchema", PROTOCOL_SCHEMA_NAMESPACE);
avro_schema_t field_schema = avro_schema_long();
avro_schema_record_field_append(record_schema, "relid", field_schema);
avro_schema_decref(field_schema);
field_schema = nullable_schema(avro_schema_string());
avro_schema_record_field_append(record_schema, "keySchema", field_schema);
avro_schema_decref(field_schema);
field_schema = avro_schema_string();
avro_schema_record_field_append(record_schema, "rowSchema", field_schema);
avro_schema_decref(field_schema);
return record_schema;
}
static int union_free_foreach(int i, avro_schema_t schema, void *arg)
{
AVRO_UNUSED(i);
AVRO_UNUSED(arg);
avro_schema_decref(schema);
return ST_DELETE;
}
avro_schema_t schema_for_delete() {
avro_schema_t record_schema = avro_schema_record("Delete", PROTOCOL_SCHEMA_NAMESPACE);
avro_schema_t field_schema = avro_schema_long();
avro_schema_record_field_append(record_schema, "relid", field_schema);
avro_schema_decref(field_schema);
field_schema = nullable_schema(avro_schema_bytes());
avro_schema_record_field_append(record_schema, "key", field_schema);
avro_schema_decref(field_schema);
field_schema = nullable_schema(avro_schema_bytes());
avro_schema_record_field_append(record_schema, "oldRow", field_schema);
avro_schema_decref(field_schema);
return record_schema;
}
/*
typedef struct {
int jobid;
int vpid;
} process_name_t;
typedef struct {
char *en_vars;
char *args;
char *host_name;
process_name_t proc_name;
} launch_context_t;
typedef struct {
bool is_successful;
process_name_t proc_name;
} launch_response_t;
*/
static void build_launch_response(launch_response_t *launch_response_array, int array_size, avro_slice_t **slice)
{
char filename[FILE_NAME_LEN];
char buf[BUFFER_SIZE];
long len = 0;
avro_schema_t schema;
avro_value_iface_t *iface;
avro_value_t record;
avro_value_t results_value, LaunchResult_value, is_successful_value, name_value, jobid_value, vpid_value;
size_t index;
int i;
avro_writer_t writer;
sprintf(filename, "%s/%s", SCHEMA_PATH, "LaunchResponseRecordAvro.avsc");
init_schema(filename, &schema);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
avro_value_get_by_name(&record, "results", &results_value, &index);
for (i = 0; i < array_size; i++) {
avro_value_append(&results_value, &LaunchResult_value, &index);
avro_value_get_by_name(&LaunchResult_value, "is_successful", &is_successful_value, &index);
avro_value_set_boolean(&is_successful_value, launch_response_array[i].is_successful);
avro_value_get_by_name(&LaunchResult_value, "name", &name_value, &index);
avro_value_get_by_name(&name_value, "jobid", &jobid_value, &index);
avro_value_set_int(&jobid_value, launch_response_array[i].proc_name.jobid);
avro_value_get_by_name(&name_value, "vpid", &vpid_value, &index);
avro_value_set_int(&vpid_value, launch_response_array[i].proc_name.vpid);
}
/* create a writer with memory buffer */
writer = avro_writer_memory(buf, sizeof(buf));
/* write record to writer (buffer) */
if (avro_value_write(writer, &record)) {
fprintf(stderr, "Unable to write record to memory buffer\n");
fprintf(stderr, "Error: %s\n", avro_strerror());
exit(1);
}
avro_writer_flush(writer);
len = avro_writer_tell(writer);
//avro_generic_value_free(&record);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
*slice = xmalloc(sizeof(avro_slice_t));
(*slice)->buffer = xmalloc(len);
(*slice)->len = len;
memcpy((*slice)->buffer, buf, len);
}
avro_schema_t schema_for_begin_txn() {
avro_schema_t record_schema = avro_schema_record("BeginTxn", PROTOCOL_SCHEMA_NAMESPACE);
avro_schema_t field_schema = avro_schema_long();
avro_schema_record_field_append(record_schema, "xid", field_schema);
avro_schema_decref(field_schema);
return record_schema;
}
static void output_avro_shutdown(LogicalDecodingContext *ctx) {
plugin_state *state = ctx->output_plugin_private;
MemoryContextDelete(state->memctx);
schema_cache_free(state->schema_cache);
avro_value_decref(&state->frame_value);
avro_value_iface_decref(state->frame_iface);
avro_schema_decref(state->frame_schema);
}
static int test_fixed(void)
{
char bytes[] = { 0xD, 0xA, 0xD, 0xA, 0xB, 0xA, 0xB, 0xA };
avro_schema_t schema = avro_schema_fixed("msg", sizeof(bytes));
avro_datum_t datum = avro_wrapfixed("msg", bytes, sizeof(bytes));
write_read_check(schema, NULL, datum, "fixed");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}
static int test_bytes(void)
{
char bytes[] = { 0xDE, 0xAD, 0xBE, 0xEF };
avro_schema_t writer_schema = avro_schema_bytes();
avro_datum_t datum = avro_wrapbytes(bytes, sizeof(bytes));
write_read_check(writer_schema, NULL, datum, "bytes");
avro_datum_decref(datum);
avro_schema_decref(writer_schema);
return 0;
}
static int record_free_foreach(int i, struct avro_record_field_t *field,
void *arg)
{
AVRO_UNUSED(i);
AVRO_UNUSED(arg);
avro_str_free(field->name);
avro_schema_decref(field->type);
avro_freet(struct avro_record_field_t, field);
return ST_DELETE;
}
static int test_map(void)
{
avro_schema_t schema = avro_schema_map(avro_schema_long());
avro_datum_t datum = avro_map(schema);
int64_t i = 0;
char *nums[] =
{ "zero", "one", "two", "three", "four", "five", "six", NULL };
while (nums[i]) {
avro_datum_t i_datum = avro_int64(i);
avro_map_set(datum, nums[i], i_datum);
avro_datum_decref(i_datum);
i++;
}
if (avro_array_size(datum) != 7) {
fprintf(stderr, "Unexpected map size\n");
exit(EXIT_FAILURE);
}
avro_datum_t value;
const char *key;
avro_map_get_key(datum, 2, &key);
avro_map_get(datum, key, &value);
int64_t val;
avro_int64_get(value, &val);
if (val != 2) {
fprintf(stderr, "Unexpected map value 2\n");
exit(EXIT_FAILURE);
}
int index;
if (avro_map_get_index(datum, "two", &index)) {
fprintf(stderr, "Can't get index for key \"two\": %s\n",
avro_strerror());
exit(EXIT_FAILURE);
}
if (index != 2) {
fprintf(stderr, "Unexpected index for key \"two\"\n");
exit(EXIT_FAILURE);
}
if (!avro_map_get_index(datum, "foobar", &index)) {
fprintf(stderr, "Unexpected index for key \"foobar\"\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, datum, NULL, NULL, "map");
test_json(datum,
"{\"zero\": 0, \"one\": 1, \"two\": 2, \"three\": 3, "
"\"four\": 4, \"five\": 5, \"six\": 6}");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}
static int test_enum(void)
{
enum avro_languages {
AVRO_C,
AVRO_CPP,
AVRO_PYTHON,
AVRO_RUBY,
AVRO_JAVA
};
avro_schema_t schema = avro_schema_enum("language");
avro_datum_t datum = avro_enum(schema, AVRO_C);
avro_schema_enum_symbol_append(schema, "C");
avro_schema_enum_symbol_append(schema, "C++");
avro_schema_enum_symbol_append(schema, "Python");
avro_schema_enum_symbol_append(schema, "Ruby");
avro_schema_enum_symbol_append(schema, "Java");
if (avro_enum_get(datum) != AVRO_C) {
fprintf(stderr, "Unexpected enum value AVRO_C\n");
exit(EXIT_FAILURE);
}
if (strcmp(avro_enum_get_name(datum), "C") != 0) {
fprintf(stderr, "Unexpected enum value name C\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, datum, NULL, NULL, "enum");
test_json(datum, "\"C\"");
avro_enum_set(datum, AVRO_CPP);
if (strcmp(avro_enum_get_name(datum), "C++") != 0) {
fprintf(stderr, "Unexpected enum value name C++\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, datum, NULL, NULL, "enum");
test_json(datum, "\"C++\"");
avro_enum_set_name(datum, "Python");
if (avro_enum_get(datum) != AVRO_PYTHON) {
fprintf(stderr, "Unexpected enum value AVRO_PYTHON\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, datum, NULL, NULL, "enum");
test_json(datum, "\"Python\"");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}
static int test_float(void)
{
int i;
avro_schema_t schema = avro_schema_double();
for (i = 0; i < 100; i++) {
avro_datum_t datum = avro_double(rand_number(-1.0E10, 1.0E10));
write_read_check(schema, NULL, datum, "float");
avro_datum_decref(datum);
}
avro_schema_decref(schema);
return 0;
}
static int test_boolean(void)
{
int i;
avro_schema_t schema = avro_schema_boolean();
for (i = 0; i <= 1; i++) {
avro_datum_t datum = avro_boolean(i);
write_read_check(schema, NULL, datum, "boolean");
avro_datum_decref(datum);
}
avro_schema_decref(schema);
return 0;
}
static int test_int64(void)
{
int i;
avro_schema_t writer_schema = avro_schema_long();
for (i = 0; i < 100; i++) {
avro_datum_t datum = avro_int64(rand_int64());
write_read_check(writer_schema, NULL, datum, "long");
avro_datum_decref(datum);
}
avro_schema_decref(writer_schema);
return 0;
}
/* Returns 0 on success. On failure, sets mapper->error and returns nonzero. */
int table_metadata_update_schema(table_mapper_t mapper, table_metadata_t table, int is_key, const char* schema_json, size_t schema_len) {
int prev_schema_id = is_key ? table->key_schema_id : table->row_schema_id;
int schema_id = TABLE_MAPPER_SCHEMA_ID_MISSING;
int err;
if (mapper->registry) {
err = schema_registry_request(mapper->registry, rd_kafka_topic_name(table->topic), is_key,
schema_json, schema_len,
&schema_id);
if (err) {
mapper_error(mapper, "Failed to register %s schema: %s",
is_key ? "key" : "row", mapper->registry->error);
return err;
}
table_metadata_set_schema_id(table, is_key, schema_id);
}
avro_schema_t schema;
/* If running with a schema registry, we can use the registry to detect
* if the schema we just saw is the same as the one we remembered
* previously (since the registry guarantees to return the same id for
* identical schemas). If the registry returns the same id as before, we
* can skip parsing the new schema and just keep the previous one.
*
* However, if we're running without a registry, it's not so easy to detect
* whether or not the schema changed, so in that case we just always parse
* the new schema. (We could store the previous schema JSON and strcmp()
* it with the new JSON, but that probably wouldn't save much over just
* parsing the JSON, given this isn't a hot code path.) */
if (prev_schema_id == TABLE_MAPPER_SCHEMA_ID_MISSING || prev_schema_id != schema_id) {
if (schema_json) {
err = avro_schema_from_json_length(schema_json, schema_len, &schema);
if (err) {
mapper_error(mapper, "Could not parse %s schema: %s",
is_key ? "key" : "row", avro_strerror());
return err;
}
} else {
schema = NULL;
}
table_metadata_set_schema(table, is_key, schema);
if (schema) avro_schema_decref(schema);
}
return 0;
}
void process_file(FILE *input, avro_file_writer_t out, avro_schema_t schema,
int verbose, int memstat, int errabort, int strjson, size_t max_str_sz) {
json_error_t err;
json_t *json;
int n = 0;
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
while (!feof(input)) {
n++;
if (verbose && !(n % 1000))
printf("Processing record %d\n", n);
if (!json) {
if (errabort) {
fprintf(stderr, "JSON error on line %d, column %d, pos %d: %s, aborting.\n", n, err.column, err.position, err.text);
return;
}
fprintf(stderr, "JSON error on line %d, column %d, pos %d: %s, skipping to EOL\n", n, err.column, err.position, err.text);
while (getc(input) != '\n' && !feof(input)) {};
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
continue;
}
avro_value_t record;
avro_value_iface_t *iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &record);
if (!schema_traverse(schema, json, NULL, &record, 0, strjson, max_str_sz)) {
if (avro_file_writer_append_value(out, &record)) {
fprintf(stderr, "ERROR: avro_file_writer_append_value() FAILED: %s\n", avro_strerror());
exit(EXIT_FAILURE);
}
} else
fprintf(stderr, "Error processing record %d, skipping...\n", n);
avro_value_iface_decref(iface);
avro_value_decref(&record);
json_decref(json);
if (memstat && !(n % 1000))
memory_status();
json = json_loadf(input, JSON_DISABLE_EOF_CHECK, &err);
}
if (memstat) memory_status();
avro_schema_decref(schema);
}
static int
l_schema_gc(lua_State *L)
{
LuaAvroSchema *l_schema = luaL_checkudata(L, 1, MT_AVRO_SCHEMA);
if (l_schema->schema != NULL) {
avro_schema_decref(l_schema->schema);
l_schema->schema = NULL;
}
if (l_schema->iface != NULL) {
avro_value_iface_decref(l_schema->iface);
l_schema->iface = NULL;
}
return 0;
}
static int test_boolean(void)
{
int i;
const char *expected_json[] = { "false", "true" };
avro_schema_t schema = avro_schema_boolean();
for (i = 0; i <= 1; i++) {
avro_datum_t datum = avro_boolean(i);
write_read_check(schema, datum, NULL, NULL, "boolean");
test_json(datum, expected_json[i]);
avro_datum_decref(datum);
}
avro_schema_decref(schema);
return 0;
}
static void
process_file(const char *in_filename, const char *out_filename)
{
avro_file_reader_t reader;
avro_file_writer_t writer;
if (in_filename == NULL) {
if (avro_file_reader_fp(stdin, "<stdin>", 0, &reader)) {
fprintf(stderr, "Error opening <stdin>:\n %s\n",
avro_strerror());
exit(1);
}
} else {
if (avro_file_reader(in_filename, &reader)) {
fprintf(stderr, "Error opening %s:\n %s\n",
in_filename, avro_strerror());
exit(1);
}
}
avro_schema_t wschema;
avro_value_iface_t *iface;
avro_value_t value;
wschema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(wschema);
avro_generic_value_new(iface, &value);
if (avro_file_writer_create_with_codec
(out_filename, wschema, &writer, codec, block_size)) {
fprintf(stderr, "Error creating %s:\n %s\n",
out_filename, avro_strerror());
exit(1);
}
while (avro_file_reader_read_value(reader, &value) == 0) {
if (avro_file_writer_append_value(writer, &value)) {
fprintf(stderr, "Error writing to %s:\n %s\n",
out_filename, avro_strerror());
exit(1);
}
avro_value_reset(&value);
}
avro_file_reader_close(reader);
avro_file_writer_close(writer);
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(wschema);
}
/* Frees all the memory structures associated with a frame reader. */
void frame_reader_free(frame_reader_t reader) {
avro_reader_free(reader->avro_reader);
avro_value_decref(&reader->frame_value);
avro_value_iface_decref(reader->frame_iface);
avro_schema_decref(reader->frame_schema);
for (int i = 0; i < reader->num_schemas; i++) {
schema_list_entry *entry = reader->schemas[i];
schema_list_entry_decrefs(entry);
free(entry);
}
free(reader->schemas);
free(reader);
}
static int test_float(void)
{
int i;
avro_schema_t schema = avro_schema_float();
avro_schema_t double_schema = avro_schema_double();
for (i = 0; i < 100; i++) {
float value = rand_number(-1.0E10, 1.0E10);
avro_datum_t datum = avro_float(value);
avro_datum_t double_datum = avro_double(value);
write_read_check(schema, datum, NULL, NULL, "float");
write_read_check(schema, datum,
double_schema, double_datum, "float->double");
avro_datum_decref(datum);
avro_datum_decref(double_datum);
}
avro_datum_t datum = avro_float(2000.0);
test_json(datum, "2000.0");
avro_datum_decref(datum);
avro_schema_decref(schema);
avro_schema_decref(double_schema);
return 0;
}
static int test_int32(void)
{
int i;
avro_schema_t writer_schema = avro_schema_int();
avro_schema_t long_schema = avro_schema_long();
avro_schema_t float_schema = avro_schema_float();
avro_schema_t double_schema = avro_schema_double();
for (i = 0; i < 100; i++) {
int32_t value = rand_int32();
avro_datum_t datum = avro_int32(value);
avro_datum_t long_datum = avro_int64(value);
avro_datum_t float_datum = avro_float(value);
avro_datum_t double_datum = avro_double(value);
write_read_check(writer_schema, datum, NULL, NULL, "int");
write_read_check(writer_schema, datum,
long_schema, long_datum, "int->long");
write_read_check(writer_schema, datum,
float_schema, float_datum, "int->float");
write_read_check(writer_schema, datum,
double_schema, double_datum, "int->double");
avro_datum_decref(datum);
avro_datum_decref(long_datum);
avro_datum_decref(float_datum);
avro_datum_decref(double_datum);
}
avro_datum_t datum = avro_int32(10000);
test_json(datum, "10000");
avro_datum_decref(datum);
avro_schema_decref(writer_schema);
avro_schema_decref(long_schema);
avro_schema_decref(float_schema);
avro_schema_decref(double_schema);
return 0;
}
avro_schema_t r_kv_get_schema(kv_store_t *kvstore,
const char *space,
const char *name) {
int nsch, i;
avro_schema_t *schemas = NULL, schema = NULL;
if (!kvstore || !name) {
return NULL;
}
schema = avro_schema_record(name, space);
nsch = kv_avro_get_current_schemas(kvstore, &schemas);
PRINTF("r_kv_get_schema, name = %s, space = %s, nsch = %d\n", name, space, nsch);
for (i = 0; i < nsch; i++) {
avro_schema_t sch = schemas[i];
if (avro_typeof(sch) == AVRO_RECORD &&
avro_schema_equal(schema, sch)) {
avro_schema_decref(schema);
return sch;
}
}
avro_schema_decref(schema);
return NULL;
}
static int
do_close(AvroDeserializer* self) {
if (self->flags & DESERIALIZER_READER_OK) {
avro_reader_free(self->datum_reader);
self->flags &= ~DESERIALIZER_READER_OK;
}
if (self->flags & DESERIALIZER_SCHEMA_OK) {
avro_schema_decref(self->schema);
self->flags &= ~DESERIALIZER_SCHEMA_OK;
}
if (self->iface != NULL) {
avro_value_iface_decref(self->iface);
self->iface = NULL;
}
return 0;
}
static int test_union(void)
{
avro_schema_t schema = avro_schema_union();
avro_datum_t union_datum;
avro_datum_t datum;
avro_datum_t union_datum1;
avro_datum_t datum1;
avro_schema_union_append(schema, avro_schema_string());
avro_schema_union_append(schema, avro_schema_int());
avro_schema_union_append(schema, avro_schema_null());
datum = avro_givestring("Follow your bliss.", NULL);
union_datum = avro_union(schema, 0, datum);
if (avro_union_discriminant(union_datum) != 0) {
fprintf(stderr, "Unexpected union discriminant\n");
exit(EXIT_FAILURE);
}
if (avro_union_current_branch(union_datum) != datum) {
fprintf(stderr, "Unexpected union branch datum\n");
exit(EXIT_FAILURE);
}
union_datum1 = avro_datum_from_schema(schema);
avro_union_set_discriminant(union_datum1, 0, &datum1);
avro_givestring_set(datum1, "Follow your bliss.", NULL);
if (!avro_datum_equal(datum, datum1)) {
fprintf(stderr, "Union values should be equal\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, union_datum, NULL, NULL, "union");
test_json(union_datum, "{\"string\": \"Follow your bliss.\"}");
avro_datum_decref(datum);
avro_union_set_discriminant(union_datum, 2, &datum);
test_json(union_datum, "null");
avro_datum_decref(union_datum);
avro_datum_decref(datum);
avro_datum_decref(union_datum1);
avro_schema_decref(schema);
return 0;
}
static int test_double(void)
{
int i;
avro_schema_t schema = avro_schema_double();
for (i = 0; i < 100; i++) {
avro_datum_t datum = avro_double(rand_number(-1.0E10, 1.0E10));
write_read_check(schema, datum, NULL, NULL, "double");
avro_datum_decref(datum);
}
avro_datum_t datum = avro_double(2000.0);
test_json(datum, "2000.0");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}
static int test_string(void)
{
unsigned int i;
const char *strings[] = { "Four score and seven years ago",
"our father brought forth on this continent",
"a new nation", "conceived in Liberty",
"and dedicated to the proposition that all men are created equal."
};
avro_schema_t writer_schema = avro_schema_string();
for (i = 0; i < sizeof(strings) / sizeof(strings[0]); i++) {
avro_datum_t datum = avro_wrapstring(strings[i]);
write_read_check(writer_schema, NULL, datum, "string");
avro_datum_decref(datum);
}
avro_schema_decref(writer_schema);
return 0;
}
static int read_data() {
int rval;
int records_read = 0;
avro_file_reader_t reader;
avro_value_iface_t *iface;
avro_value_t value;
fprintf(stderr, "\nReading...\n");
rval = avro_file_reader(filename, &reader);
if (rval) {
fprintf(stderr, "Error: %s\n", avro_strerror());
return -1;
}
avro_schema_t schema = avro_file_reader_get_writer_schema(reader);
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &value);
while ((rval = avro_file_reader_read_value(reader, &value)) == 0) {
avro_value_t field;
int32_t val;
avro_value_get_by_index(&value, 0, &field, NULL);
avro_value_get_int(&field, &val);
fprintf(stderr, "value = %d\n", val);
records_read++;
avro_value_reset(&value);
}
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
avro_file_reader_close(reader);
fprintf(stderr, "read %d records.\n", records_read);
if (rval != EOF) {
fprintf(stderr, "Error: %s\n", avro_strerror());
return -1;
}
return records_read;
}
static int write_data(int n_records) {
int i;
avro_schema_t schema;
avro_schema_error_t error;
avro_file_writer_t writer;
avro_value_iface_t *iface;
avro_value_t value;
fprintf(stderr, "\nWriting...\n");
if (avro_schema_from_json(PERSON_SCHEMA, 0, &schema, &error)) {
fprintf(stderr, "Unable to parse schema\n");
return -1;
}
if (avro_file_writer_create(filename, schema, &writer)) {
fprintf(stderr, "There was an error creating file: %s\n", avro_strerror());
return -1;
}
iface = avro_generic_class_from_schema(schema);
avro_generic_value_new(iface, &value);
avro_value_t field;
avro_value_get_by_index(&value, 0, &field, NULL);
avro_value_set_int(&field, 123);
for (i = 0; i < n_records; i++) {
if (avro_file_writer_append_value(writer, &value)) {
fprintf(stderr, "There was an error writing file: %s\n", avro_strerror());
return -1;
}
}
if (avro_file_writer_close(writer)) {
fprintf(stderr, "There was an error creating file: %s\n", avro_strerror());
return -1;
}
avro_value_decref(&value);
avro_value_iface_decref(iface);
avro_schema_decref(schema);
return n_records;
}
static int test_map(void)
{
avro_schema_t schema = avro_schema_map(avro_schema_long());
avro_datum_t datum = avro_map();
int64_t i = 0;
char *nums[] =
{ "zero", "one", "two", "three", "four", "five", "six", NULL };
while (nums[i]) {
avro_datum_t i_datum = avro_int64(i);
avro_map_set(datum, nums[i], i_datum);
avro_datum_decref(i_datum);
i++;
}
write_read_check(schema, NULL, datum, "map");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}