static void test_create_many_persistant_metadata(void) {
grpc_mdctx *ctx;
char buffer[GPR_LTOA_MIN_BUFSIZE];
long i;
grpc_mdelem **created = gpr_malloc(sizeof(grpc_mdelem *) * MANY);
grpc_mdelem *md;
LOG_TEST("test_create_many_persistant_metadata");
ctx = grpc_mdctx_create();
/* add phase */
for (i = 0; i < MANY; i++) {
gpr_ltoa(i, buffer);
created[i] = grpc_mdelem_from_strings(ctx, "a", buffer);
}
/* verify phase */
for (i = 0; i < MANY; i++) {
gpr_ltoa(i, buffer);
md = grpc_mdelem_from_strings(ctx, "a", buffer);
GPR_ASSERT(md == created[i]);
GRPC_MDELEM_UNREF(md);
}
/* cleanup phase */
for (i = 0; i < MANY; i++) {
GRPC_MDELEM_UNREF(created[i]);
}
grpc_mdctx_unref(ctx);
gpr_free(created);
}
static void handle_op_after_cancellation(grpc_call_element *elem,
grpc_transport_op *op) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
if (op->send_ops) {
grpc_stream_ops_unref_owned_objects(op->send_ops->ops, op->send_ops->nops);
op->on_done_send(op->send_user_data, 0);
}
if (op->recv_ops) {
char status[GPR_LTOA_MIN_BUFSIZE];
grpc_metadata_batch mdb;
gpr_ltoa(GRPC_STATUS_CANCELLED, status);
calld->s.cancelled.status.md =
grpc_mdelem_from_strings(chand->mdctx, "grpc-status", status);
calld->s.cancelled.details.md =
grpc_mdelem_from_strings(chand->mdctx, "grpc-message", "Cancelled");
calld->s.cancelled.status.prev = calld->s.cancelled.details.next = NULL;
calld->s.cancelled.status.next = &calld->s.cancelled.details;
calld->s.cancelled.details.prev = &calld->s.cancelled.status;
mdb.list.head = &calld->s.cancelled.status;
mdb.list.tail = &calld->s.cancelled.details;
mdb.garbage.head = mdb.garbage.tail = NULL;
mdb.deadline = gpr_inf_future;
grpc_sopb_add_metadata(op->recv_ops, mdb);
*op->recv_state = GRPC_STREAM_CLOSED;
op->on_done_recv(op->recv_user_data, 1);
}
}
static void lame_start_transport_stream_op(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem,
grpc_transport_stream_op *op) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
if (op->send_ops != NULL) {
grpc_stream_ops_unref_owned_objects(op->send_ops->ops, op->send_ops->nops);
op->on_done_send->cb(exec_ctx, op->on_done_send->cb_arg, 0);
}
if (op->recv_ops != NULL) {
char tmp[GPR_LTOA_MIN_BUFSIZE];
grpc_metadata_batch mdb;
gpr_ltoa(chand->error_code, tmp);
calld->status.md =
grpc_mdelem_from_strings(chand->mdctx, "grpc-status", tmp);
calld->details.md = grpc_mdelem_from_strings(chand->mdctx, "grpc-message",
chand->error_message);
calld->status.prev = calld->details.next = NULL;
calld->status.next = &calld->details;
calld->details.prev = &calld->status;
mdb.list.head = &calld->status;
mdb.list.tail = &calld->details;
mdb.garbage.head = mdb.garbage.tail = NULL;
mdb.deadline = gpr_inf_future(GPR_CLOCK_REALTIME);
grpc_sopb_add_metadata(op->recv_ops, mdb);
*op->recv_state = GRPC_STREAM_CLOSED;
op->on_done_recv->cb(exec_ctx, op->on_done_recv->cb_arg, 1);
}
if (op->on_consumed != NULL) {
op->on_consumed->cb(exec_ctx, op->on_consumed->cb_arg, 0);
}
}
static void lame_start_transport_op(grpc_call_element *elem,
grpc_transport_op *op) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
if (op->send_ops) {
op->on_done_send(op->send_user_data, 0);
}
if (op->recv_ops) {
char tmp[GPR_LTOA_MIN_BUFSIZE];
grpc_metadata_batch mdb;
gpr_ltoa(GRPC_STATUS_UNKNOWN, tmp);
calld->status.md =
grpc_mdelem_from_strings(chand->mdctx, "grpc-status", tmp);
calld->details.md = grpc_mdelem_from_strings(chand->mdctx, "grpc-message",
"Rpc sent on a lame channel.");
calld->status.prev = calld->details.next = NULL;
calld->status.next = &calld->details;
calld->details.prev = &calld->status;
mdb.list.head = &calld->status;
mdb.list.tail = &calld->details;
mdb.garbage.head = mdb.garbage.tail = NULL;
mdb.deadline = gpr_inf_future;
grpc_sopb_add_metadata(op->recv_ops, mdb);
*op->recv_state = GRPC_STREAM_CLOSED;
op->on_done_recv(op->recv_user_data, 1);
}
}
grpc_mdelem *grpc_channel_get_reffed_status_elem(grpc_channel *channel, int i) {
if (i >= 0 && i < NUM_CACHED_STATUS_ELEMS) {
return grpc_mdelem_ref(channel->grpc_status_elem[i]);
} else {
char tmp[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa(i, tmp);
return grpc_mdelem_from_metadata_strings(
channel->metadata_context, grpc_mdstr_ref(channel->grpc_status_string),
grpc_mdstr_from_string(channel->metadata_context, tmp));
}
}
grpc_channel *grpc_channel_create_from_filters(
const char *target, const grpc_channel_filter **filters, size_t num_filters,
const grpc_channel_args *args, grpc_mdctx *mdctx, int is_client) {
size_t i;
size_t size =
sizeof(grpc_channel) + grpc_channel_stack_size(filters, num_filters);
grpc_channel *channel = gpr_malloc(size);
memset(channel, 0, sizeof(*channel));
channel->target = gpr_strdup(target);
GPR_ASSERT(grpc_is_initialized() && "call grpc_init()");
channel->is_client = is_client;
/* decremented by grpc_channel_destroy */
gpr_ref_init(&channel->refs, 1);
channel->metadata_context = mdctx;
channel->grpc_status_string = grpc_mdstr_from_string(mdctx, "grpc-status", 0);
channel->grpc_compression_algorithm_string =
grpc_mdstr_from_string(mdctx, "grpc-encoding", 0);
channel->grpc_message_string = grpc_mdstr_from_string(mdctx, "grpc-message", 0);
for (i = 0; i < NUM_CACHED_STATUS_ELEMS; i++) {
char buf[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa(i, buf);
channel->grpc_status_elem[i] = grpc_mdelem_from_metadata_strings(
mdctx, GRPC_MDSTR_REF(channel->grpc_status_string),
grpc_mdstr_from_string(mdctx, buf, 0));
}
channel->path_string = grpc_mdstr_from_string(mdctx, ":path", 0);
channel->authority_string = grpc_mdstr_from_string(mdctx, ":authority", 0);
gpr_mu_init(&channel->registered_call_mu);
channel->registered_calls = NULL;
channel->max_message_length = DEFAULT_MAX_MESSAGE_LENGTH;
if (args) {
for (i = 0; i < args->num_args; i++) {
if (0 == strcmp(args->args[i].key, GRPC_ARG_MAX_MESSAGE_LENGTH)) {
if (args->args[i].type != GRPC_ARG_INTEGER) {
gpr_log(GPR_ERROR, "%s ignored: it must be an integer",
GRPC_ARG_MAX_MESSAGE_LENGTH);
} else if (args->args[i].value.integer < 0) {
gpr_log(GPR_ERROR, "%s ignored: it must be >= 0",
GRPC_ARG_MAX_MESSAGE_LENGTH);
} else {
channel->max_message_length = args->args[i].value.integer;
}
}
}
}
grpc_channel_stack_init(filters, num_filters, channel, args,
channel->metadata_context,
CHANNEL_STACK_FROM_CHANNEL(channel));
return channel;
}
static char *encoded_jwt_claim(const grpc_auth_json_key *json_key,
const char *audience,
gpr_timespec token_lifetime, const char *scope) {
grpc_json *json = grpc_json_create(GRPC_JSON_OBJECT);
grpc_json *child = NULL;
char *json_str = NULL;
char *result = NULL;
gpr_timespec now = gpr_now();
gpr_timespec expiration = gpr_time_add(now, token_lifetime);
char now_str[GPR_LTOA_MIN_BUFSIZE];
char expiration_str[GPR_LTOA_MIN_BUFSIZE];
if (gpr_time_cmp(token_lifetime, grpc_max_auth_token_lifetime) > 0) {
gpr_log(GPR_INFO, "Cropping token lifetime to maximum allowed value.");
expiration = gpr_time_add(now, grpc_max_auth_token_lifetime);
}
gpr_ltoa(now.tv_sec, now_str);
gpr_ltoa(expiration.tv_sec, expiration_str);
child = create_child(NULL, json, "iss", json_key->client_email,
GRPC_JSON_STRING);
if (scope != NULL) {
child = create_child(child, json, "scope", scope, GRPC_JSON_STRING);
} else {
/* Unscoped JWTs need a sub field. */
child = create_child(child, json, "sub", json_key->client_email,
GRPC_JSON_STRING);
}
child = create_child(child, json, "aud", audience, GRPC_JSON_STRING);
child = create_child(child, json, "iat", now_str, GRPC_JSON_NUMBER);
create_child(child, json, "exp", expiration_str, GRPC_JSON_NUMBER);
json_str = grpc_json_dump_to_string(json, 0);
result = grpc_base64_encode(json_str, strlen(json_str), 1, 0);
gpr_free(json_str);
grpc_json_destroy(json);
return result;
}
static void test_create_many_ephemeral_metadata(void) {
char buffer[GPR_LTOA_MIN_BUFSIZE];
long i;
LOG_TEST("test_create_many_ephemeral_metadata");
grpc_init();
/* add, and immediately delete a bunch of different elements */
for (i = 0; i < MANY; i++) {
gpr_ltoa(i, buffer);
GRPC_MDELEM_UNREF(grpc_mdelem_from_strings("a", buffer));
}
grpc_shutdown();
}
grpc_mdelem *grpc_channel_get_reffed_status_elem(grpc_channel *channel, int i) {
char tmp[GPR_LTOA_MIN_BUFSIZE];
switch (i) {
case 0:
return GRPC_MDELEM_GRPC_STATUS_0;
case 1:
return GRPC_MDELEM_GRPC_STATUS_1;
case 2:
return GRPC_MDELEM_GRPC_STATUS_2;
}
gpr_ltoa(i, tmp);
return grpc_mdelem_from_metadata_strings(GRPC_MDSTR_GRPC_STATUS,
grpc_mdstr_from_string(tmp));
}
void grpc_cq_dump_pending_ops(grpc_completion_queue *cc) {
#ifndef NDEBUG
char tmp[GRPC_COMPLETION_DO_NOT_USE * (1 + GPR_LTOA_MIN_BUFSIZE)];
char *p = tmp;
int i;
for (i = 0; i < GRPC_COMPLETION_DO_NOT_USE; i++) {
*p++ = ' ';
p += gpr_ltoa(cc->pending_op_count[i], p);
}
gpr_log(GPR_INFO, "pending ops:%s", tmp);
#endif
}
static void init_channel_elem(grpc_channel_element *elem,
const grpc_channel_args *args, grpc_mdctx *mdctx,
int is_first, int is_last) {
channel_data *channeld = elem->channel_data;
char status[12];
GPR_ASSERT(is_first);
GPR_ASSERT(is_last);
channeld->message = grpc_mdelem_from_strings(mdctx, "grpc-message",
"Rpc sent on a lame channel.");
gpr_ltoa(GRPC_STATUS_UNKNOWN, status);
channeld->status = grpc_mdelem_from_strings(mdctx, "grpc-status", status);
}
static void test_ltoa() {
char *str;
char buf[GPR_LTOA_MIN_BUFSIZE];
LOG_TEST_NAME("test_ltoa");
/* zero */
GPR_ASSERT(1 == gpr_ltoa(0, buf));
GPR_ASSERT(0 == strcmp("0", buf));
/* positive number */
GPR_ASSERT(3 == gpr_ltoa(123, buf));
GPR_ASSERT(0 == strcmp("123", buf));
/* negative number */
GPR_ASSERT(6 == gpr_ltoa(-12345, buf));
GPR_ASSERT(0 == strcmp("-12345", buf));
/* large negative - we don't know the size of long in advance */
GPR_ASSERT(gpr_asprintf(&str, "%lld", (long long)LONG_MIN));
GPR_ASSERT(strlen(str) == (size_t)gpr_ltoa(LONG_MIN, buf));
GPR_ASSERT(0 == strcmp(str, buf));
gpr_free(str);
}
static void fill_metadata(grpc_call_element *elem, grpc_metadata_batch *mdb) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
char tmp[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa(chand->error_code, tmp);
calld->status.md = grpc_mdelem_from_strings("grpc-status", tmp);
calld->details.md =
grpc_mdelem_from_strings("grpc-message", chand->error_message);
calld->status.prev = calld->details.next = NULL;
calld->status.next = &calld->details;
calld->details.prev = &calld->status;
mdb->list.head = &calld->status;
mdb->list.tail = &calld->details;
mdb->deadline = gpr_inf_future(GPR_CLOCK_REALTIME);
}
static void test_create_many_ephemeral_metadata(void) {
grpc_mdctx *ctx;
char buffer[GPR_LTOA_MIN_BUFSIZE];
long i;
size_t mdtab_capacity_before;
LOG_TEST("test_create_many_ephemeral_metadata");
ctx = grpc_mdctx_create();
mdtab_capacity_before = grpc_mdctx_get_mdtab_capacity_test_only(ctx);
/* add, and immediately delete a bunch of different elements */
for (i = 0; i < MANY; i++) {
gpr_ltoa(i, buffer);
GRPC_MDELEM_UNREF(grpc_mdelem_from_strings(ctx, "a", buffer));
}
/* capacity should not grow */
GPR_ASSERT(mdtab_capacity_before ==
grpc_mdctx_get_mdtab_capacity_test_only(ctx));
grpc_mdctx_unref(ctx);
}
static void test_insertion_and_deletion_with_high_collision_rate(void) {
census_ht_option opt = {CENSUS_HT_POINTER, 13, &force_collision,
&cmp_str_keys, NULL, NULL};
census_ht *ht = census_ht_create(&opt);
char key_str[1000][GPR_LTOA_MIN_BUFSIZE];
uint64_t val = 0;
unsigned i = 0;
for (i = 0; i < 1000; i++) {
census_ht_key key;
key.ptr = key_str[i];
gpr_ltoa(i, key_str[i]);
census_ht_insert(ht, key, (void *)(&val));
gpr_log(GPR_INFO, "%d\n", i);
GPR_ASSERT(census_ht_get_size(ht) == (i + 1));
}
for (i = 0; i < 1000; i++) {
census_ht_key key;
key.ptr = key_str[i];
census_ht_erase(ht, key);
GPR_ASSERT(census_ht_get_size(ht) == (999 - i));
}
census_ht_destroy(ht);
}
/* Constructor for channel_data */
static void init_channel_elem(grpc_channel_element *elem,
const grpc_channel_args *args,
grpc_mdctx *metadata_context, int is_first,
int is_last) {
channel_data *chand = elem->channel_data;
char temp[GPR_LTOA_MIN_BUFSIZE];
GPR_ASSERT(!is_first);
GPR_ASSERT(is_last);
GPR_ASSERT(elem->filter == &grpc_client_channel_filter);
gpr_mu_init(&chand->mu);
chand->active_child = NULL;
chand->waiting_children = NULL;
chand->waiting_child_count = 0;
chand->waiting_child_capacity = 0;
chand->transport_setup = NULL;
chand->transport_setup_initiated = 0;
chand->args = grpc_channel_args_copy(args);
gpr_ltoa(GRPC_STATUS_CANCELLED, temp);
chand->cancel_status =
grpc_mdelem_from_strings(metadata_context, "grpc-status", temp);
}
static void unlock_check_read_write_state(grpc_chttp2_transport *t) {
grpc_chttp2_transport_global *transport_global = &t->global;
grpc_chttp2_stream_global *stream_global;
grpc_stream_state state;
if (!t->parsing_active) {
/* if a stream is in the stream map, and gets cancelled, we need to ensure
we are not parsing before continuing the cancellation to keep things in
a sane state */
while (grpc_chttp2_list_pop_closed_waiting_for_parsing(transport_global,
&stream_global)) {
GPR_ASSERT(stream_global->in_stream_map);
GPR_ASSERT(stream_global->write_state != GRPC_WRITE_STATE_OPEN);
GPR_ASSERT(stream_global->read_closed);
remove_stream(t, stream_global->id);
grpc_chttp2_list_add_read_write_state_changed(transport_global,
stream_global);
}
}
while (grpc_chttp2_list_pop_read_write_state_changed(transport_global,
&stream_global)) {
if (stream_global->cancelled) {
stream_global->write_state = GRPC_WRITE_STATE_SENT_CLOSE;
stream_global->read_closed = 1;
if (!stream_global->published_cancelled) {
char buffer[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa(stream_global->cancelled_status, buffer);
grpc_chttp2_incoming_metadata_buffer_add(&stream_global->incoming_metadata,
grpc_mdelem_from_strings(t->metadata_context, "grpc-status", buffer));
grpc_chttp2_incoming_metadata_buffer_place_metadata_batch_into(
&stream_global->incoming_metadata,
&stream_global->incoming_sopb);
stream_global->published_cancelled = 1;
}
}
if (stream_global->write_state == GRPC_WRITE_STATE_SENT_CLOSE &&
stream_global->read_closed && stream_global->in_stream_map) {
if (t->parsing_active) {
grpc_chttp2_list_add_closed_waiting_for_parsing(transport_global,
stream_global);
} else {
remove_stream(t, stream_global->id);
}
}
if (!stream_global->publish_sopb) {
continue;
}
/* FIXME(ctiller): we include in_stream_map in our computation of
whether the stream is write-closed. This is completely bogus,
but has the effect of delaying stream-closed until the stream
is indeed evicted from the stream map, making it safe to delete.
To fix this will require having an edge after stream-closed
indicating that the stream is closed AND safe to delete. */
state = compute_state(
stream_global->write_state == GRPC_WRITE_STATE_SENT_CLOSE &&
!stream_global->in_stream_map,
stream_global->read_closed);
if (stream_global->incoming_sopb.nops == 0 &&
state == stream_global->published_state) {
continue;
}
grpc_chttp2_incoming_metadata_buffer_postprocess_sopb_and_begin_live_op(
&stream_global->incoming_metadata, &stream_global->incoming_sopb,
&stream_global->outstanding_metadata);
grpc_sopb_swap(stream_global->publish_sopb, &stream_global->incoming_sopb);
stream_global->published_state = *stream_global->publish_state = state;
grpc_chttp2_schedule_closure(transport_global,
stream_global->recv_done_closure, 1);
stream_global->recv_done_closure = NULL;
stream_global->publish_sopb = NULL;
stream_global->publish_state = NULL;
}
}
static int fill_send_ops(grpc_call *call, grpc_transport_op *op) {
grpc_ioreq_data data;
grpc_metadata_batch mdb;
size_t i;
char status_str[GPR_LTOA_MIN_BUFSIZE];
GPR_ASSERT(op->send_ops == NULL);
switch (call->write_state) {
case WRITE_STATE_INITIAL:
if (!is_op_live(call, GRPC_IOREQ_SEND_INITIAL_METADATA)) {
break;
}
data = call->request_data[GRPC_IOREQ_SEND_INITIAL_METADATA];
mdb.list = chain_metadata_from_app(call, data.send_metadata.count,
data.send_metadata.metadata);
mdb.garbage.head = mdb.garbage.tail = NULL;
mdb.deadline = call->send_deadline;
for (i = 0; i < call->send_initial_metadata_count; i++) {
grpc_metadata_batch_link_head(&mdb, &call->send_initial_metadata[i]);
}
grpc_sopb_add_metadata(&call->send_ops, mdb);
op->send_ops = &call->send_ops;
op->bind_pollset = grpc_cq_pollset(call->cq);
call->last_send_contains |= 1 << GRPC_IOREQ_SEND_INITIAL_METADATA;
call->write_state = WRITE_STATE_STARTED;
call->send_initial_metadata_count = 0;
/* fall through intended */
case WRITE_STATE_STARTED:
if (is_op_live(call, GRPC_IOREQ_SEND_MESSAGE)) {
data = call->request_data[GRPC_IOREQ_SEND_MESSAGE];
grpc_sopb_add_begin_message(
&call->send_ops, grpc_byte_buffer_length(data.send_message), 0);
copy_byte_buffer_to_stream_ops(data.send_message, &call->send_ops);
op->send_ops = &call->send_ops;
call->last_send_contains |= 1 << GRPC_IOREQ_SEND_MESSAGE;
}
if (is_op_live(call, GRPC_IOREQ_SEND_CLOSE)) {
op->is_last_send = 1;
op->send_ops = &call->send_ops;
call->last_send_contains |= 1 << GRPC_IOREQ_SEND_CLOSE;
call->write_state = WRITE_STATE_WRITE_CLOSED;
if (!call->is_client) {
/* send trailing metadata */
data = call->request_data[GRPC_IOREQ_SEND_TRAILING_METADATA];
mdb.list = chain_metadata_from_app(call, data.send_metadata.count,
data.send_metadata.metadata);
mdb.garbage.head = mdb.garbage.tail = NULL;
mdb.deadline = gpr_inf_future;
/* send status */
/* TODO(ctiller): cache common status values */
data = call->request_data[GRPC_IOREQ_SEND_STATUS];
gpr_ltoa(data.send_status.code, status_str);
grpc_metadata_batch_add_tail(
&mdb, &call->status_link,
grpc_mdelem_from_metadata_strings(
call->metadata_context,
grpc_mdstr_ref(grpc_channel_get_status_string(call->channel)),
grpc_mdstr_from_string(call->metadata_context, status_str)));
if (data.send_status.details) {
grpc_metadata_batch_add_tail(
&mdb, &call->details_link,
grpc_mdelem_from_metadata_strings(
call->metadata_context,
grpc_mdstr_ref(
grpc_channel_get_message_string(call->channel)),
grpc_mdstr_from_string(call->metadata_context,
data.send_status.details)));
}
grpc_sopb_add_metadata(&call->send_ops, mdb);
}
}
break;
case WRITE_STATE_WRITE_CLOSED:
break;
}
if (op->send_ops) {
op->on_done_send = call_on_done_send;
op->send_user_data = call;
}
return op->send_ops != NULL;
}
static void test_find(void) {
grpc_chttp2_hptbl tbl;
int i;
char buffer[32];
grpc_mdctx *mdctx;
grpc_chttp2_hptbl_find_result r;
LOG_TEST("test_find");
mdctx = grpc_mdctx_create();
grpc_chttp2_hptbl_init(&tbl, mdctx);
grpc_chttp2_hptbl_add(&tbl, grpc_mdelem_from_strings(mdctx, "abc", "xyz"));
grpc_chttp2_hptbl_add(&tbl, grpc_mdelem_from_strings(mdctx, "abc", "123"));
grpc_chttp2_hptbl_add(&tbl, grpc_mdelem_from_strings(mdctx, "x", "1"));
r = find_simple(&tbl, "abc", "123");
GPR_ASSERT(r.index == 2 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, "abc", "xyz");
GPR_ASSERT(r.index == 3 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, "x", "1");
GPR_ASSERT(r.index == 1 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, "x", "2");
GPR_ASSERT(r.index == 1 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 0);
r = find_simple(&tbl, "vary", "some-vary-arg");
GPR_ASSERT(r.index == 59);
GPR_ASSERT(r.has_value == 0);
r = find_simple(&tbl, "accept-encoding", "gzip, deflate");
GPR_ASSERT(r.index == 16);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, "accept-encoding", "gzip");
GPR_ASSERT(r.index == 16);
GPR_ASSERT(r.has_value == 0);
r = find_simple(&tbl, ":method", "GET");
GPR_ASSERT(r.index == 2);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, ":method", "POST");
GPR_ASSERT(r.index == 3);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, ":method", "PUT");
GPR_ASSERT(r.index == 2 || r.index == 3);
GPR_ASSERT(r.has_value == 0);
r = find_simple(&tbl, "this-does-not-exist", "");
GPR_ASSERT(r.index == 0);
GPR_ASSERT(r.has_value == 0);
/* overflow the string buffer, check find still works */
for (i = 0; i < 10000; i++) {
gpr_ltoa(i, buffer);
grpc_chttp2_hptbl_add(&tbl,
grpc_mdelem_from_strings(mdctx, "test", buffer));
}
r = find_simple(&tbl, "abc", "123");
GPR_ASSERT(r.index == 0);
GPR_ASSERT(r.has_value == 0);
r = find_simple(&tbl, "test", "9999");
GPR_ASSERT(r.index == 1 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
r = find_simple(&tbl, "test", "9998");
GPR_ASSERT(r.index == 2 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
for (i = 0; i < tbl.num_ents; i++) {
int expect = 9999 - i;
gpr_ltoa(expect, buffer);
r = find_simple(&tbl, "test", buffer);
GPR_ASSERT(r.index == i + 1 + GRPC_CHTTP2_LAST_STATIC_ENTRY);
GPR_ASSERT(r.has_value == 1);
}
r = find_simple(&tbl, "test", "10000");
GPR_ASSERT(r.index != 0);
GPR_ASSERT(r.has_value == 0);
grpc_chttp2_hptbl_destroy(&tbl);
grpc_mdctx_unref(mdctx);
}
static void enact_send_action(grpc_call *call, send_action sa) {
grpc_ioreq_data data;
grpc_call_op op;
size_t i;
gpr_uint32 flags = 0;
char status_str[GPR_LTOA_MIN_BUFSIZE];
switch (sa) {
case SEND_NOTHING:
abort();
break;
case SEND_BUFFERED_INITIAL_METADATA:
flags |= GRPC_WRITE_BUFFER_HINT;
/* fallthrough */
case SEND_INITIAL_METADATA:
data = call->request_data[GRPC_IOREQ_SEND_INITIAL_METADATA];
for (i = 0; i < data.send_metadata.count; i++) {
const grpc_metadata *md = &data.send_metadata.metadata[i];
send_metadata(call,
grpc_mdelem_from_string_and_buffer(
call->metadata_context, md->key,
(const gpr_uint8 *)md->value, md->value_length));
}
op.type = GRPC_SEND_START;
op.dir = GRPC_CALL_DOWN;
op.flags = flags;
op.data.start.pollset = grpc_cq_pollset(call->cq);
op.done_cb = finish_start_step;
op.user_data = call;
grpc_call_execute_op(call, &op);
break;
case SEND_BUFFERED_MESSAGE:
flags |= GRPC_WRITE_BUFFER_HINT;
/* fallthrough */
case SEND_MESSAGE:
data = call->request_data[GRPC_IOREQ_SEND_MESSAGE];
op.type = GRPC_SEND_MESSAGE;
op.dir = GRPC_CALL_DOWN;
op.flags = flags;
op.data.message = data.send_message;
op.done_cb = finish_write_step;
op.user_data = call;
grpc_call_execute_op(call, &op);
break;
case SEND_TRAILING_METADATA_AND_FINISH:
/* send trailing metadata */
data = call->request_data[GRPC_IOREQ_SEND_TRAILING_METADATA];
for (i = 0; i < data.send_metadata.count; i++) {
const grpc_metadata *md = &data.send_metadata.metadata[i];
send_metadata(call,
grpc_mdelem_from_string_and_buffer(
call->metadata_context, md->key,
(const gpr_uint8 *)md->value, md->value_length));
}
/* send status */
/* TODO(ctiller): cache common status values */
data = call->request_data[GRPC_IOREQ_SEND_STATUS];
gpr_ltoa(data.send_status.code, status_str);
send_metadata(
call,
grpc_mdelem_from_metadata_strings(
call->metadata_context,
grpc_mdstr_ref(grpc_channel_get_status_string(call->channel)),
grpc_mdstr_from_string(call->metadata_context, status_str)));
if (data.send_status.details) {
send_metadata(
call,
grpc_mdelem_from_metadata_strings(
call->metadata_context,
grpc_mdstr_ref(grpc_channel_get_message_string(call->channel)),
grpc_mdstr_from_string(call->metadata_context,
data.send_status.details)));
}
/* fallthrough: see choose_send_action for details */
case SEND_FINISH:
op.type = GRPC_SEND_FINISH;
op.dir = GRPC_CALL_DOWN;
op.flags = 0;
op.done_cb = finish_finish_step;
op.user_data = call;
grpc_call_execute_op(call, &op);
break;
}
}
grpc_channel *grpc_channel_create_from_filters(
grpc_exec_ctx *exec_ctx, const char *target,
const grpc_channel_filter **filters, size_t num_filters,
const grpc_channel_args *args, grpc_mdctx *mdctx, int is_client) {
size_t i;
size_t size =
sizeof(grpc_channel) + grpc_channel_stack_size(filters, num_filters);
grpc_channel *channel = gpr_malloc(size);
memset(channel, 0, sizeof(*channel));
channel->target = gpr_strdup(target);
GPR_ASSERT(grpc_is_initialized() && "call grpc_init()");
channel->is_client = is_client;
/* decremented by grpc_channel_destroy */
gpr_ref_init(&channel->refs, 1);
channel->metadata_context = mdctx;
channel->grpc_status_string = grpc_mdstr_from_string(mdctx, "grpc-status", 0);
channel->grpc_compression_algorithm_string =
grpc_mdstr_from_string(mdctx, "grpc-encoding", 0);
channel->grpc_encodings_accepted_by_peer_string =
grpc_mdstr_from_string(mdctx, "grpc-accept-encoding", 0);
channel->grpc_message_string =
grpc_mdstr_from_string(mdctx, "grpc-message", 0);
for (i = 0; i < NUM_CACHED_STATUS_ELEMS; i++) {
char buf[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa((long)i, buf);
channel->grpc_status_elem[i] = grpc_mdelem_from_metadata_strings(
mdctx, GRPC_MDSTR_REF(channel->grpc_status_string),
grpc_mdstr_from_string(mdctx, buf, 0));
}
channel->path_string = grpc_mdstr_from_string(mdctx, ":path", 0);
channel->authority_string = grpc_mdstr_from_string(mdctx, ":authority", 0);
gpr_mu_init(&channel->registered_call_mu);
channel->registered_calls = NULL;
channel->max_message_length = DEFAULT_MAX_MESSAGE_LENGTH;
if (args) {
for (i = 0; i < args->num_args; i++) {
if (0 == strcmp(args->args[i].key, GRPC_ARG_MAX_MESSAGE_LENGTH)) {
if (args->args[i].type != GRPC_ARG_INTEGER) {
gpr_log(GPR_ERROR, "%s ignored: it must be an integer",
GRPC_ARG_MAX_MESSAGE_LENGTH);
} else if (args->args[i].value.integer < 0) {
gpr_log(GPR_ERROR, "%s ignored: it must be >= 0",
GRPC_ARG_MAX_MESSAGE_LENGTH);
} else {
channel->max_message_length = (gpr_uint32)args->args[i].value.integer;
}
} else if (0 == strcmp(args->args[i].key, GRPC_ARG_DEFAULT_AUTHORITY)) {
if (args->args[i].type != GRPC_ARG_STRING) {
gpr_log(GPR_ERROR, "%s: must be an string",
GRPC_ARG_DEFAULT_AUTHORITY);
} else {
if (channel->default_authority) {
/* setting this takes precedence over anything else */
GRPC_MDELEM_UNREF(channel->default_authority);
}
channel->default_authority = grpc_mdelem_from_strings(
mdctx, ":authority", args->args[i].value.string);
}
} else if (0 ==
strcmp(args->args[i].key, GRPC_SSL_TARGET_NAME_OVERRIDE_ARG)) {
if (args->args[i].type != GRPC_ARG_STRING) {
gpr_log(GPR_ERROR, "%s: must be an string",
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG);
} else {
if (channel->default_authority) {
/* other ways of setting this (notably ssl) take precedence */
gpr_log(GPR_ERROR, "%s: default host already set some other way",
GRPC_ARG_DEFAULT_AUTHORITY);
} else {
channel->default_authority = grpc_mdelem_from_strings(
mdctx, ":authority", args->args[i].value.string);
}
}
}
}
}
if (channel->is_client && channel->default_authority == NULL &&
target != NULL) {
char *default_authority = grpc_get_default_authority(target);
if (default_authority) {
channel->default_authority = grpc_mdelem_from_strings(
channel->metadata_context, ":authority", default_authority);
}
gpr_free(default_authority);
}
grpc_channel_stack_init(exec_ctx, filters, num_filters, channel, args,
channel->metadata_context,
CHANNEL_STACK_FROM_CHANNEL(channel));
return channel;
}
static void output_num(long num) {
char buf[GPR_LTOA_MIN_BUFSIZE];
gpr_ltoa(num, buf);
output_string(buf);
}
