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-rw-r--r--include/grpc/impl/codegen/grpc_types.h6
-rw-r--r--src/core/lib/channel/message_size_filter.c20
2 files changed, 16 insertions, 10 deletions
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index a8e8ebe6ea..191cdd0e5f 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -148,11 +148,13 @@ typedef struct {
/** Maximum number of concurrent incoming streams to allow on a http2
connection. Int valued. */
#define GRPC_ARG_MAX_CONCURRENT_STREAMS "grpc.max_concurrent_streams"
-/** Maximum message length that the channel can receive. Int valued, bytes. */
+/** Maximum message length that the channel can receive. Int valued, bytes.
+ -1 means unlimited. */
#define GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH "grpc.max_receive_message_length"
/** \deprecated For backward compatibility. */
#define GRPC_ARG_MAX_MESSAGE_LENGTH GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH
-/** Maximum message length that the channel can send. Int valued, bytes. */
+/** Maximum message length that the channel can send. Int valued, bytes.
+ -1 means unlimited. */
#define GRPC_ARG_MAX_SEND_MESSAGE_LENGTH "grpc.max_send_message_length"
/** Initial sequence number for http2 transports. Int valued. */
#define GRPC_ARG_HTTP2_INITIAL_SEQUENCE_NUMBER \
diff --git a/src/core/lib/channel/message_size_filter.c b/src/core/lib/channel/message_size_filter.c
index 6613785dea..7528184d89 100644
--- a/src/core/lib/channel/message_size_filter.c
+++ b/src/core/lib/channel/message_size_filter.c
@@ -40,8 +40,9 @@
#include "src/core/lib/channel/channel_args.h"
+#define DEFAULT_MAX_SEND_MESSAGE_LENGTH -1 // Unlimited.
// The protobuf library will (by default) start warning at 100 megs.
-#define DEFAULT_MAX_MESSAGE_LENGTH (4 * 1024 * 1024)
+#define DEFAULT_MAX_RECV_MESSAGE_LENGTH (4 * 1024 * 1024)
typedef struct call_data {
// Receive closures are chained: we inject this closure as the
@@ -55,8 +56,8 @@ typedef struct call_data {
} call_data;
typedef struct channel_data {
- size_t max_send_size;
- size_t max_recv_size;
+ long max_send_size;
+ long max_recv_size;
} channel_data;
// Callback invoked when we receive a message. Here we check the max
@@ -66,7 +67,7 @@ static void recv_message_ready(grpc_exec_ctx* exec_ctx, void* user_data,
grpc_call_element* elem = user_data;
call_data* calld = elem->call_data;
channel_data* chand = elem->channel_data;
- if (*calld->recv_message != NULL &&
+ if (*calld->recv_message != NULL && chand->max_recv_size >= 0 &&
(*calld->recv_message)->length > chand->max_recv_size) {
char* message_string;
gpr_asprintf(
@@ -88,7 +89,7 @@ static void start_transport_stream_op(grpc_exec_ctx* exec_ctx,
call_data* calld = elem->call_data;
channel_data* chand = elem->channel_data;
// Check max send message size.
- if (op->send_message != NULL &&
+ if (op->send_message != NULL && chand->max_send_size >= 0 &&
op->send_message->length > chand->max_send_size) {
char* message_string;
gpr_asprintf(&message_string, "Sent message larger than max (%u vs. %lu)",
@@ -130,17 +131,20 @@ static void init_channel_elem(grpc_exec_ctx* exec_ctx,
GPR_ASSERT(!args->is_last);
channel_data* chand = elem->channel_data;
memset(chand, 0, sizeof(*chand));
- chand->max_send_size = DEFAULT_MAX_MESSAGE_LENGTH;
- chand->max_recv_size = DEFAULT_MAX_MESSAGE_LENGTH;
- const grpc_integer_options options = {DEFAULT_MAX_MESSAGE_LENGTH, 0, INT_MAX};
+ chand->max_send_size = DEFAULT_MAX_SEND_MESSAGE_LENGTH;
+ chand->max_recv_size = DEFAULT_MAX_RECV_MESSAGE_LENGTH;
for (size_t i = 0; i < args->channel_args->num_args; ++i) {
if (strcmp(args->channel_args->args[i].key,
GRPC_ARG_MAX_SEND_MESSAGE_LENGTH) == 0) {
+ const grpc_integer_options options = {DEFAULT_MAX_SEND_MESSAGE_LENGTH, 0,
+ INT_MAX};
chand->max_send_size = (size_t)grpc_channel_arg_get_integer(
&args->channel_args->args[i], options);
}
if (strcmp(args->channel_args->args[i].key,
GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH) == 0) {
+ const grpc_integer_options options = {DEFAULT_MAX_RECV_MESSAGE_LENGTH, 0,
+ INT_MAX};
chand->max_recv_size = (size_t)grpc_channel_arg_get_integer(
&args->channel_args->args[i], options);
}