diff options
Diffstat (limited to 'src/core/lib/channel')
| -rw-r--r-- | src/core/lib/channel/channel_args.c | 67 | ||||
| -rw-r--r-- | src/core/lib/channel/channel_args.h | 15 | ||||
| -rw-r--r-- | src/core/lib/channel/channel_stack.c | 4 | ||||
| -rw-r--r-- | src/core/lib/channel/channel_stack.h | 4 | ||||
| -rw-r--r-- | src/core/lib/channel/deadline_filter.c | 76 | ||||
| -rw-r--r-- | src/core/lib/channel/deadline_filter.h | 33 | ||||
| -rw-r--r-- | src/core/lib/channel/handshaker.c | 2 | ||||
| -rw-r--r-- | src/core/lib/channel/http_server_filter.c | 7 | ||||
| -rw-r--r-- | src/core/lib/channel/message_size_filter.c | 94 |
9 files changed, 252 insertions, 50 deletions
diff --git a/src/core/lib/channel/channel_args.c b/src/core/lib/channel/channel_args.c index 3a56b1ff20..cfc072c0b5 100644 --- a/src/core/lib/channel/channel_args.c +++ b/src/core/lib/channel/channel_args.c @@ -66,22 +66,59 @@ static grpc_arg copy_arg(const grpc_arg *src) { grpc_channel_args *grpc_channel_args_copy_and_add(const grpc_channel_args *src, const grpc_arg *to_add, size_t num_to_add) { + return grpc_channel_args_copy_and_add_and_remove(src, NULL, 0, to_add, + num_to_add); +} + +grpc_channel_args *grpc_channel_args_copy_and_remove( + const grpc_channel_args *src, const char **to_remove, + size_t num_to_remove) { + return grpc_channel_args_copy_and_add_and_remove(src, to_remove, + num_to_remove, NULL, 0); +} + +static bool should_remove_arg(const grpc_arg *arg, const char **to_remove, + size_t num_to_remove) { + for (size_t i = 0; i < num_to_remove; ++i) { + if (strcmp(arg->key, to_remove[i]) == 0) return true; + } + return false; +} + +grpc_channel_args *grpc_channel_args_copy_and_add_and_remove( + const grpc_channel_args *src, const char **to_remove, size_t num_to_remove, + const grpc_arg *to_add, size_t num_to_add) { + // Figure out how many args we'll be copying. + size_t num_args_to_copy = 0; + if (src != NULL) { + for (size_t i = 0; i < src->num_args; ++i) { + if (!should_remove_arg(&src->args[i], to_remove, num_to_remove)) { + ++num_args_to_copy; + } + } + } + // Create result. grpc_channel_args *dst = gpr_malloc(sizeof(grpc_channel_args)); - size_t i; - size_t src_num_args = (src == NULL) ? 0 : src->num_args; - if (!src && !to_add) { - dst->num_args = 0; + dst->num_args = num_args_to_copy + num_to_add; + if (dst->num_args == 0) { dst->args = NULL; return dst; } - dst->num_args = src_num_args + num_to_add; dst->args = gpr_malloc(sizeof(grpc_arg) * dst->num_args); - for (i = 0; i < src_num_args; i++) { - dst->args[i] = copy_arg(&src->args[i]); + // Copy args from src that are not being removed. + size_t dst_idx = 0; + if (src != NULL) { + for (size_t i = 0; i < src->num_args; ++i) { + if (!should_remove_arg(&src->args[i], to_remove, num_to_remove)) { + dst->args[dst_idx++] = copy_arg(&src->args[i]); + } + } } - for (i = 0; i < num_to_add; i++) { - dst->args[i + src_num_args] = copy_arg(&to_add[i]); + // Add args from to_add. + for (size_t i = 0; i < num_to_add; ++i) { + dst->args[dst_idx++] = copy_arg(&to_add[i]); } + GPR_ASSERT(dst_idx == dst->num_args); return dst; } @@ -272,6 +309,18 @@ int grpc_channel_args_compare(const grpc_channel_args *a, return 0; } +const grpc_arg *grpc_channel_args_find(const grpc_channel_args *args, + const char *name) { + if (args != NULL) { + for (size_t i = 0; i < args->num_args; ++i) { + if (strcmp(args->args[i].key, name) == 0) { + return &args->args[i]; + } + } + } + return NULL; +} + int grpc_channel_arg_get_integer(grpc_arg *arg, grpc_integer_options options) { if (arg->type != GRPC_ARG_INTEGER) { gpr_log(GPR_ERROR, "%s ignored: it must be an integer", arg->key); diff --git a/src/core/lib/channel/channel_args.h b/src/core/lib/channel/channel_args.h index 586a296d1f..1e05303471 100644 --- a/src/core/lib/channel/channel_args.h +++ b/src/core/lib/channel/channel_args.h @@ -51,6 +51,17 @@ grpc_channel_args *grpc_channel_args_copy_and_add(const grpc_channel_args *src, const grpc_arg *to_add, size_t num_to_add); +/** Copies the arguments in \a src except for those whose keys are in + \a to_remove. */ +grpc_channel_args *grpc_channel_args_copy_and_remove( + const grpc_channel_args *src, const char **to_remove, size_t num_to_remove); + +/** Copies the arguments from \a src except for those whose keys are in + \a to_remove and appends the arguments in \a to_add. */ +grpc_channel_args *grpc_channel_args_copy_and_add_and_remove( + const grpc_channel_args *src, const char **to_remove, size_t num_to_remove, + const grpc_arg *to_add, size_t num_to_add); + /** Concatenate args from \a a and \a b into a new instance */ grpc_channel_args *grpc_channel_args_merge(const grpc_channel_args *a, const grpc_channel_args *b); @@ -89,6 +100,10 @@ uint32_t grpc_channel_args_compression_algorithm_get_states( int grpc_channel_args_compare(const grpc_channel_args *a, const grpc_channel_args *b); +/** Returns the value of argument \a name from \a args, or NULL if not found. */ +const grpc_arg *grpc_channel_args_find(const grpc_channel_args *args, + const char *name); + typedef struct grpc_integer_options { int default_value; // Return this if value is outside of expected bounds. int min_value; diff --git a/src/core/lib/channel/channel_stack.c b/src/core/lib/channel/channel_stack.c index 57d34d9e9a..2c5367901d 100644 --- a/src/core/lib/channel/channel_stack.c +++ b/src/core/lib/channel/channel_stack.c @@ -162,7 +162,7 @@ grpc_error *grpc_call_stack_init( grpc_exec_ctx *exec_ctx, grpc_channel_stack *channel_stack, int initial_refs, grpc_iomgr_cb_func destroy, void *destroy_arg, grpc_call_context_element *context, const void *transport_server_data, - gpr_timespec deadline, grpc_call_stack *call_stack) { + grpc_mdstr *path, gpr_timespec deadline, grpc_call_stack *call_stack) { grpc_channel_element *channel_elems = CHANNEL_ELEMS_FROM_STACK(channel_stack); grpc_call_element_args args; size_t count = channel_stack->count; @@ -179,10 +179,12 @@ grpc_error *grpc_call_stack_init( /* init per-filter data */ grpc_error *first_error = GRPC_ERROR_NONE; + args.start_time = gpr_now(GPR_CLOCK_MONOTONIC); for (i = 0; i < count; i++) { args.call_stack = call_stack; args.server_transport_data = transport_server_data; args.context = context; + args.path = path; args.deadline = deadline; call_elems[i].filter = channel_elems[i].filter; call_elems[i].channel_data = channel_elems[i].channel_data; diff --git a/src/core/lib/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h index 1cfe2885d8..27f3be7b29 100644 --- a/src/core/lib/channel/channel_stack.h +++ b/src/core/lib/channel/channel_stack.h @@ -74,6 +74,8 @@ typedef struct { grpc_call_stack *call_stack; const void *server_transport_data; grpc_call_context_element *context; + grpc_mdstr *path; + gpr_timespec start_time; gpr_timespec deadline; } grpc_call_element_args; @@ -225,7 +227,7 @@ grpc_error *grpc_call_stack_init( grpc_exec_ctx *exec_ctx, grpc_channel_stack *channel_stack, int initial_refs, grpc_iomgr_cb_func destroy, void *destroy_arg, grpc_call_context_element *context, const void *transport_server_data, - gpr_timespec deadline, grpc_call_stack *call_stack); + grpc_mdstr *path, gpr_timespec deadline, grpc_call_stack *call_stack); /* Set a pollset or a pollset_set for a call stack: must occur before the first * op is started */ void grpc_call_stack_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx, diff --git a/src/core/lib/channel/deadline_filter.c b/src/core/lib/channel/deadline_filter.c index 079b98a2f8..d2ea5250f6 100644 --- a/src/core/lib/channel/deadline_filter.c +++ b/src/core/lib/channel/deadline_filter.c @@ -64,30 +64,49 @@ static void timer_callback(grpc_exec_ctx* exec_ctx, void* arg, } // Starts the deadline timer. -static void start_timer_if_needed(grpc_exec_ctx* exec_ctx, - grpc_call_element* elem, - gpr_timespec deadline) { +static void start_timer_if_needed_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + gpr_timespec deadline) { grpc_deadline_state* deadline_state = elem->call_data; deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); - if (gpr_time_cmp(deadline, gpr_inf_future(GPR_CLOCK_MONOTONIC)) != 0) { + // Note: We do not start the timer if there is already a timer + // pending. This should be okay, because this is only called from two + // functions exported by this module: grpc_deadline_state_start(), which + // starts the initial timer, and grpc_deadline_state_reset(), which + // cancels any pre-existing timer before starting a new one. In + // particular, we want to ensure that if grpc_deadline_state_start() + // winds up trying to start the timer after grpc_deadline_state_reset() + // has already done so, we ignore the value from the former. + if (!deadline_state->timer_pending && + gpr_time_cmp(deadline, gpr_inf_future(GPR_CLOCK_MONOTONIC)) != 0) { // Take a reference to the call stack, to be owned by the timer. GRPC_CALL_STACK_REF(deadline_state->call_stack, "deadline_timer"); - gpr_mu_lock(&deadline_state->timer_mu); deadline_state->timer_pending = true; grpc_timer_init(exec_ctx, &deadline_state->timer, deadline, timer_callback, elem, gpr_now(GPR_CLOCK_MONOTONIC)); - gpr_mu_unlock(&deadline_state->timer_mu); } } +static void start_timer_if_needed(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + gpr_timespec deadline) { + grpc_deadline_state* deadline_state = elem->call_data; + gpr_mu_lock(&deadline_state->timer_mu); + start_timer_if_needed_locked(exec_ctx, elem, deadline); + gpr_mu_unlock(&deadline_state->timer_mu); +} // Cancels the deadline timer. -static void cancel_timer_if_needed(grpc_exec_ctx* exec_ctx, - grpc_deadline_state* deadline_state) { - gpr_mu_lock(&deadline_state->timer_mu); +static void cancel_timer_if_needed_locked(grpc_exec_ctx* exec_ctx, + grpc_deadline_state* deadline_state) { if (deadline_state->timer_pending) { grpc_timer_cancel(exec_ctx, &deadline_state->timer); deadline_state->timer_pending = false; } +} +static void cancel_timer_if_needed(grpc_exec_ctx* exec_ctx, + grpc_deadline_state* deadline_state) { + gpr_mu_lock(&deadline_state->timer_mu); + cancel_timer_if_needed_locked(exec_ctx, deadline_state); gpr_mu_unlock(&deadline_state->timer_mu); } @@ -108,6 +127,21 @@ static void inject_on_complete_cb(grpc_deadline_state* deadline_state, op->on_complete = &deadline_state->on_complete; } +void grpc_deadline_state_init(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_call_stack* call_stack) { + grpc_deadline_state* deadline_state = elem->call_data; + memset(deadline_state, 0, sizeof(*deadline_state)); + deadline_state->call_stack = call_stack; + gpr_mu_init(&deadline_state->timer_mu); +} + +void grpc_deadline_state_destroy(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + grpc_deadline_state* deadline_state = elem->call_data; + cancel_timer_if_needed(exec_ctx, deadline_state); + gpr_mu_destroy(&deadline_state->timer_mu); +} + // Callback and associated state for starting the timer after call stack // initialization has been completed. struct start_timer_after_init_state { @@ -122,16 +156,11 @@ static void start_timer_after_init(grpc_exec_ctx* exec_ctx, void* arg, gpr_free(state); } -void grpc_deadline_state_init(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, - grpc_call_element_args* args) { - grpc_deadline_state* deadline_state = elem->call_data; - memset(deadline_state, 0, sizeof(*deadline_state)); - deadline_state->call_stack = args->call_stack; - gpr_mu_init(&deadline_state->timer_mu); +void grpc_deadline_state_start(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + gpr_timespec deadline) { // Deadline will always be infinite on servers, so the timer will only be // set on clients with a finite deadline. - const gpr_timespec deadline = - gpr_convert_clock_type(args->deadline, GPR_CLOCK_MONOTONIC); + deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); if (gpr_time_cmp(deadline, gpr_inf_future(GPR_CLOCK_MONOTONIC)) != 0) { // When the deadline passes, we indicate the failure by sending down // an op with cancel_error set. However, we can't send down any ops @@ -148,11 +177,13 @@ void grpc_deadline_state_init(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, } } -void grpc_deadline_state_destroy(grpc_exec_ctx* exec_ctx, - grpc_call_element* elem) { +void grpc_deadline_state_reset(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + gpr_timespec new_deadline) { grpc_deadline_state* deadline_state = elem->call_data; - cancel_timer_if_needed(exec_ctx, deadline_state); - gpr_mu_destroy(&deadline_state->timer_mu); + gpr_mu_lock(&deadline_state->timer_mu); + cancel_timer_if_needed_locked(exec_ctx, deadline_state); + start_timer_if_needed_locked(exec_ctx, elem, new_deadline); + gpr_mu_unlock(&deadline_state->timer_mu); } void grpc_deadline_state_client_start_transport_stream_op( @@ -209,7 +240,8 @@ static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element_args* args) { // Note: size of call data is different between client and server. memset(elem->call_data, 0, elem->filter->sizeof_call_data); - grpc_deadline_state_init(exec_ctx, elem, args); + grpc_deadline_state_init(exec_ctx, elem, args->call_stack); + grpc_deadline_state_start(exec_ctx, elem, args->deadline); return GRPC_ERROR_NONE; } diff --git a/src/core/lib/channel/deadline_filter.h b/src/core/lib/channel/deadline_filter.h index 685df87761..716a852565 100644 --- a/src/core/lib/channel/deadline_filter.h +++ b/src/core/lib/channel/deadline_filter.h @@ -54,18 +54,37 @@ typedef struct grpc_deadline_state { grpc_closure* next_on_complete; } grpc_deadline_state; -// To be used in a filter's init_call_elem(), destroy_call_elem(), and -// start_transport_stream_op() methods to enforce call deadlines. // -// REQUIRES: The first field in elem->call_data is a grpc_deadline_state. +// NOTE: All of these functions require that the first field in +// elem->call_data is a grpc_deadline_state. // -// For grpc_deadline_state_client_start_transport_stream_op(), it is the -// caller's responsibility to chain to the next filter if necessary -// after the function returns. + void grpc_deadline_state_init(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, - grpc_call_element_args* args); + grpc_call_stack* call_stack); void grpc_deadline_state_destroy(grpc_exec_ctx* exec_ctx, grpc_call_element* elem); + +// Starts the timer with the specified deadline. +// Should be called from the filter's init_call_elem() method. +void grpc_deadline_state_start(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + gpr_timespec deadline); + +// Cancels the existing timer and starts a new one with new_deadline. +// +// Note: It is generally safe to call this with an earlier deadline +// value than the current one, but not the reverse. No checks are done +// to ensure that the timer callback is not invoked while it is in the +// process of being reset, which means that attempting to increase the +// deadline may result in the timer being called twice. +void grpc_deadline_state_reset(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + gpr_timespec new_deadline); + +// To be called from the client-side filter's start_transport_stream_op() +// method. Ensures that the deadline timer is cancelled when the call +// is completed. +// +// Note: It is the caller's responsibility to chain to the next filter if +// necessary after this function returns. void grpc_deadline_state_client_start_transport_stream_op( grpc_exec_ctx* exec_ctx, grpc_call_element* elem, grpc_transport_stream_op* op); diff --git a/src/core/lib/channel/handshaker.c b/src/core/lib/channel/handshaker.c index 8f9fb17a31..0d759887bc 100644 --- a/src/core/lib/channel/handshaker.c +++ b/src/core/lib/channel/handshaker.c @@ -183,7 +183,7 @@ void grpc_handshake_manager_do_handshake( gpr_timespec deadline, grpc_tcp_server_acceptor* acceptor, grpc_handshaker_done_cb cb, void* user_data) { grpc_channel_args* args_copy = grpc_channel_args_copy(args); - gpr_slice_buffer* read_buffer = malloc(sizeof(*read_buffer)); + gpr_slice_buffer* read_buffer = gpr_malloc(sizeof(*read_buffer)); gpr_slice_buffer_init(read_buffer); if (mgr->count == 0) { // No handshakers registered, so we just immediately call the done diff --git a/src/core/lib/channel/http_server_filter.c b/src/core/lib/channel/http_server_filter.c index 0f2bf97824..f2221fb0fb 100644 --- a/src/core/lib/channel/http_server_filter.c +++ b/src/core/lib/channel/http_server_filter.c @@ -42,6 +42,8 @@ #define EXPECTED_CONTENT_TYPE "application/grpc" #define EXPECTED_CONTENT_TYPE_LENGTH sizeof(EXPECTED_CONTENT_TYPE) - 1 +extern int grpc_http_trace; + typedef struct call_data { uint8_t seen_path; uint8_t seen_method; @@ -209,6 +211,11 @@ static void hs_on_recv(grpc_exec_ctx *exec_ctx, void *user_data, err, GRPC_ERROR_CREATE("Missing te: trailers header")); } /* Error this call out */ + if (grpc_http_trace) { + const char *error_str = grpc_error_string(err); + gpr_log(GPR_ERROR, "Invalid http2 headers: %s", error_str); + grpc_error_free_string(error_str); + } grpc_call_element_send_cancel(exec_ctx, elem); } } else { diff --git a/src/core/lib/channel/message_size_filter.c b/src/core/lib/channel/message_size_filter.c index f067a3a51c..7dc5ae0df1 100644 --- a/src/core/lib/channel/message_size_filter.c +++ b/src/core/lib/channel/message_size_filter.c @@ -39,12 +39,53 @@ #include <grpc/support/string_util.h> #include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/transport/method_config.h" #define DEFAULT_MAX_SEND_MESSAGE_LENGTH -1 // Unlimited. // The protobuf library will (by default) start warning at 100 megs. #define DEFAULT_MAX_RECV_MESSAGE_LENGTH (4 * 1024 * 1024) +typedef struct message_size_limits { + int max_send_size; + int max_recv_size; +} message_size_limits; + +static void* message_size_limits_copy(void* value) { + void* new_value = gpr_malloc(sizeof(message_size_limits)); + memcpy(new_value, value, sizeof(message_size_limits)); + return new_value; +} + +static int message_size_limits_cmp(void* value1, void* value2) { + const message_size_limits* v1 = value1; + const message_size_limits* v2 = value2; + if (v1->max_send_size > v2->max_send_size) return 1; + if (v1->max_send_size < v2->max_send_size) return -1; + if (v1->max_recv_size > v2->max_recv_size) return 1; + if (v1->max_recv_size < v2->max_recv_size) return -1; + return 0; +} + +static const grpc_mdstr_hash_table_vtable message_size_limits_vtable = { + gpr_free, message_size_limits_copy, message_size_limits_cmp}; + +static void* method_config_convert_value( + const grpc_method_config* method_config) { + message_size_limits* value = gpr_malloc(sizeof(message_size_limits)); + const int32_t* max_request_message_bytes = + grpc_method_config_get_max_request_message_bytes(method_config); + value->max_send_size = + max_request_message_bytes != NULL ? *max_request_message_bytes : -1; + const int32_t* max_response_message_bytes = + grpc_method_config_get_max_response_message_bytes(method_config); + value->max_recv_size = + max_response_message_bytes != NULL ? *max_response_message_bytes : -1; + return value; +} + typedef struct call_data { + int max_send_size; + int max_recv_size; // Receive closures are chained: we inject this closure as the // recv_message_ready up-call on transport_stream_op, and remember to // call our next_recv_message_ready member after handling it. @@ -58,6 +99,8 @@ typedef struct call_data { typedef struct channel_data { int max_send_size; int max_recv_size; + // Maps path names to message_size_limits structs. + grpc_mdstr_hash_table* method_limit_table; } channel_data; // Callback invoked when we receive a message. Here we check the max @@ -66,13 +109,12 @@ static void recv_message_ready(grpc_exec_ctx* exec_ctx, void* user_data, grpc_error* error) { grpc_call_element* elem = user_data; call_data* calld = elem->call_data; - channel_data* chand = elem->channel_data; - if (*calld->recv_message != NULL && chand->max_recv_size >= 0 && - (*calld->recv_message)->length > (size_t)chand->max_recv_size) { + if (*calld->recv_message != NULL && calld->max_recv_size >= 0 && + (*calld->recv_message)->length > (size_t)calld->max_recv_size) { char* message_string; gpr_asprintf(&message_string, "Received message larger than max (%u vs. %d)", - (*calld->recv_message)->length, chand->max_recv_size); + (*calld->recv_message)->length, calld->max_recv_size); grpc_error* new_error = grpc_error_set_int( GRPC_ERROR_CREATE(message_string), GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_INVALID_ARGUMENT); @@ -93,13 +135,12 @@ static void 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; // Check max send message size. - if (op->send_message != NULL && chand->max_send_size >= 0 && - op->send_message->length > (size_t)chand->max_send_size) { + if (op->send_message != NULL && calld->max_send_size >= 0 && + op->send_message->length > (size_t)calld->max_send_size) { char* message_string; gpr_asprintf(&message_string, "Sent message larger than max (%u vs. %d)", - op->send_message->length, chand->max_send_size); + op->send_message->length, calld->max_send_size); gpr_slice message = gpr_slice_from_copied_string(message_string); gpr_free(message_string); grpc_call_element_send_close_with_message( @@ -119,9 +160,32 @@ static void start_transport_stream_op(grpc_exec_ctx* exec_ctx, static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, grpc_call_element_args* args) { + channel_data* chand = elem->channel_data; call_data* calld = elem->call_data; calld->next_recv_message_ready = NULL; grpc_closure_init(&calld->recv_message_ready, recv_message_ready, elem); + // Get max sizes from channel data, then merge in per-method config values. + // Note: Per-method config is only available on the client, so we + // apply the max request size to the send limit and the max response + // size to the receive limit. + calld->max_send_size = chand->max_send_size; + calld->max_recv_size = chand->max_recv_size; + if (chand->method_limit_table != NULL) { + message_size_limits* limits = + grpc_method_config_table_get(chand->method_limit_table, args->path); + if (limits != NULL) { + if (limits->max_send_size >= 0 && + (limits->max_send_size < calld->max_send_size || + calld->max_send_size < 0)) { + calld->max_send_size = limits->max_send_size; + } + if (limits->max_recv_size >= 0 && + (limits->max_recv_size < calld->max_recv_size || + calld->max_recv_size < 0)) { + calld->max_recv_size = limits->max_recv_size; + } + } + } return GRPC_ERROR_NONE; } @@ -155,11 +219,23 @@ static void init_channel_elem(grpc_exec_ctx* exec_ctx, grpc_channel_arg_get_integer(&args->channel_args->args[i], options); } } + // Get method config table from channel args. + const grpc_arg* channel_arg = + grpc_channel_args_find(args->channel_args, GRPC_ARG_SERVICE_CONFIG); + if (channel_arg != NULL) { + GPR_ASSERT(channel_arg->type == GRPC_ARG_POINTER); + chand->method_limit_table = grpc_method_config_table_convert( + (grpc_method_config_table*)channel_arg->value.pointer.p, + method_config_convert_value, &message_size_limits_vtable); + } } // Destructor for channel_data. static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, - grpc_channel_element* elem) {} + grpc_channel_element* elem) { + channel_data* chand = elem->channel_data; + grpc_mdstr_hash_table_unref(chand->method_limit_table); +} const grpc_channel_filter grpc_message_size_filter = { start_transport_stream_op, |