diff options
Diffstat (limited to 'src/core/lib/channel')
| -rw-r--r-- | src/core/lib/channel/message_size_filter.c | 74 |
1 files changed, 54 insertions, 20 deletions
diff --git a/src/core/lib/channel/message_size_filter.c b/src/core/lib/channel/message_size_filter.c index 69fb3819ff..b8b2546035 100644 --- a/src/core/lib/channel/message_size_filter.c +++ b/src/core/lib/channel/message_size_filter.c @@ -45,6 +45,44 @@ // 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; @@ -61,8 +99,8 @@ typedef struct call_data { typedef struct channel_data { int max_send_size; int max_recv_size; - // Method config table. - grpc_method_config_table* method_config_table; + // 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 @@ -132,24 +170,19 @@ static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, // size to the receive limit. calld->max_send_size = chand->max_send_size; calld->max_recv_size = chand->max_recv_size; - if (chand->method_config_table != NULL) { - grpc_method_config* method_config = - grpc_method_config_table_get_method_config(chand->method_config_table, - args->path); - if (method_config != NULL) { - const int32_t* max_request_message_bytes = - grpc_method_config_get_max_request_message_bytes(method_config); - if (max_request_message_bytes != NULL && - (*max_request_message_bytes < calld->max_send_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 = *max_request_message_bytes; + calld->max_send_size = limits->max_send_size; } - const int32_t* max_response_message_bytes = - grpc_method_config_get_max_response_message_bytes(method_config); - if (max_response_message_bytes != NULL && - (*max_response_message_bytes < calld->max_recv_size || + if (limits->max_recv_size >= 0 && + (limits->max_recv_size < calld->max_recv_size || calld->max_recv_size < 0)) { - calld->max_recv_size = *max_response_message_bytes; + calld->max_recv_size = limits->max_recv_size; } } } @@ -191,8 +224,9 @@ static void init_channel_elem(grpc_exec_ctx* exec_ctx, 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_config_table = grpc_method_config_table_ref( - (grpc_method_config_table*)channel_arg->value.pointer.p); + 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); } } @@ -200,7 +234,7 @@ static void init_channel_elem(grpc_exec_ctx* exec_ctx, static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, grpc_channel_element* elem) { channel_data* chand = elem->channel_data; - grpc_method_config_table_unref(chand->method_config_table); + grpc_mdstr_hash_table_unref(chand->method_limit_table); } const grpc_channel_filter grpc_message_size_filter = { |