static grpc_error *fill_in_metadata(grpc_exec_ctx *exec_ctx, inproc_stream *s,
const grpc_metadata_batch *metadata,
uint32_t flags, grpc_metadata_batch *out_md,
uint32_t *outflags, bool *markfilled) {
if (GRPC_TRACER_ON(grpc_inproc_trace)) {
log_metadata(metadata, s->t->is_client, outflags != NULL);
}
if (outflags != NULL) {
*outflags = flags;
}
if (markfilled != NULL) {
*markfilled = true;
}
grpc_error *error = GRPC_ERROR_NONE;
for (grpc_linked_mdelem *elem = metadata->list.head;
(elem != NULL) && (error == GRPC_ERROR_NONE); elem = elem->next) {
grpc_linked_mdelem *nelem = gpr_arena_alloc(s->arena, sizeof(*nelem));
nelem->md = grpc_mdelem_from_slices(
exec_ctx, grpc_slice_intern(GRPC_MDKEY(elem->md)),
grpc_slice_intern(GRPC_MDVALUE(elem->md)));
error = grpc_metadata_batch_link_tail(exec_ctx, out_md, nelem);
}
return error;
}
void grpc_inproc_transport_init(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
GRPC_CLOSURE_INIT(&do_nothing_closure, do_nothing, NULL,
grpc_schedule_on_exec_ctx);
g_empty_slice = grpc_slice_from_static_buffer(NULL, 0);
grpc_slice key_tmp = grpc_slice_from_static_string(":path");
g_fake_path_key = grpc_slice_intern(key_tmp);
grpc_slice_unref_internal(&exec_ctx, key_tmp);
g_fake_path_value = grpc_slice_from_static_string("/");
grpc_slice auth_tmp = grpc_slice_from_static_string(":authority");
g_fake_auth_key = grpc_slice_intern(auth_tmp);
grpc_slice_unref_internal(&exec_ctx, auth_tmp);
g_fake_auth_value = grpc_slice_from_static_string("inproc-fail");
grpc_exec_ctx_finish(&exec_ctx);
}
void *grpc_channel_register_call(grpc_channel *channel, const char *method,
const char *host, void *reserved) {
registered_call *rc = gpr_malloc(sizeof(registered_call));
GRPC_API_TRACE(
"grpc_channel_register_call(channel=%p, method=%s, host=%s, reserved=%p)",
4, (channel, method, host, reserved));
GPR_ASSERT(!reserved);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
rc->path = grpc_mdelem_from_slices(
&exec_ctx, GRPC_MDSTR_PATH,
grpc_slice_intern(grpc_slice_from_static_string(method)));
rc->authority =
host ? grpc_mdelem_from_slices(
&exec_ctx, GRPC_MDSTR_AUTHORITY,
grpc_slice_intern(grpc_slice_from_static_string(host)))
: GRPC_MDNULL;
gpr_mu_lock(&channel->registered_call_mu);
rc->next = channel->registered_calls;
channel->registered_calls = rc;
gpr_mu_unlock(&channel->registered_call_mu);
grpc_exec_ctx_finish(&exec_ctx);
return rc;
}
grpc_channel *grpc_channel_create_with_builder(
grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder *builder,
grpc_channel_stack_type channel_stack_type) {
char *target = gpr_strdup(grpc_channel_stack_builder_get_target(builder));
grpc_channel_args *args = grpc_channel_args_copy(
grpc_channel_stack_builder_get_channel_arguments(builder));
grpc_channel *channel;
grpc_error *error = grpc_channel_stack_builder_finish(
exec_ctx, builder, sizeof(grpc_channel), 1, destroy_channel, NULL,
(void **)&channel);
if (error != GRPC_ERROR_NONE) {
gpr_log(GPR_ERROR, "channel stack builder failed: %s",
grpc_error_string(error));
GRPC_ERROR_UNREF(error);
gpr_free(target);
goto done;
}
memset(channel, 0, sizeof(*channel));
channel->target = target;
channel->is_client = grpc_channel_stack_type_is_client(channel_stack_type);
gpr_mu_init(&channel->registered_call_mu);
channel->registered_calls = NULL;
gpr_atm_no_barrier_store(
&channel->call_size_estimate,
(gpr_atm)CHANNEL_STACK_FROM_CHANNEL(channel)->call_stack_size);
grpc_compression_options_init(&channel->compression_options);
for (size_t i = 0; i < args->num_args; i++) {
if (0 == strcmp(args->args[i].key, GRPC_ARG_DEFAULT_AUTHORITY)) {
if (args->args[i].type != GRPC_ARG_STRING) {
gpr_log(GPR_ERROR, "%s ignored: it must be a string",
GRPC_ARG_DEFAULT_AUTHORITY);
} else {
if (!GRPC_MDISNULL(channel->default_authority)) {
/* setting this takes precedence over anything else */
GRPC_MDELEM_UNREF(exec_ctx, channel->default_authority);
}
channel->default_authority = grpc_mdelem_from_slices(
exec_ctx, GRPC_MDSTR_AUTHORITY,
grpc_slice_intern(
grpc_slice_from_static_string(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 ignored: it must be a string",
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG);
} else {
if (!GRPC_MDISNULL(channel->default_authority)) {
/* other ways of setting this (notably ssl) take precedence */
gpr_log(GPR_ERROR,
"%s ignored: default host already set some other way",
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG);
} else {
channel->default_authority = grpc_mdelem_from_slices(
exec_ctx, GRPC_MDSTR_AUTHORITY,
grpc_slice_intern(
grpc_slice_from_static_string(args->args[i].value.string)));
}
}
} else if (0 == strcmp(args->args[i].key,
GRPC_COMPRESSION_CHANNEL_DEFAULT_LEVEL)) {
channel->compression_options.default_level.is_set = true;
channel->compression_options.default_level.level =
(grpc_compression_level)grpc_channel_arg_get_integer(
&args->args[i],
(grpc_integer_options){GRPC_COMPRESS_LEVEL_NONE,
GRPC_COMPRESS_LEVEL_NONE,
GRPC_COMPRESS_LEVEL_COUNT - 1});
} else if (0 == strcmp(args->args[i].key,
GRPC_COMPRESSION_CHANNEL_DEFAULT_ALGORITHM)) {
channel->compression_options.default_algorithm.is_set = true;
channel->compression_options.default_algorithm.algorithm =
(grpc_compression_algorithm)grpc_channel_arg_get_integer(
&args->args[i],
(grpc_integer_options){GRPC_COMPRESS_NONE, GRPC_COMPRESS_NONE,
GRPC_COMPRESS_ALGORITHMS_COUNT - 1});
} else if (0 ==
strcmp(args->args[i].key,
GRPC_COMPRESSION_CHANNEL_ENABLED_ALGORITHMS_BITSET)) {
channel->compression_options.enabled_algorithms_bitset =
(uint32_t)args->args[i].value.integer |
0x1; /* always support no compression */
}
}
done:
grpc_channel_args_destroy(exec_ctx, args);
return channel;
}