diff options
Diffstat (limited to 'src/core')
-rw-r--r-- | src/core/client_config/lb_policies/pick_first.h | 2 | ||||
-rw-r--r-- | src/core/client_config/uri_parser.c | 2 | ||||
-rw-r--r-- | src/core/iomgr/pollset_set.h | 2 | ||||
-rw-r--r-- | src/core/surface/byte_buffer_queue.c | 8 | ||||
-rw-r--r-- | src/core/surface/byte_buffer_queue.h | 2 | ||||
-rw-r--r-- | src/core/surface/call.c | 13 | ||||
-rw-r--r-- | src/core/surface/completion_queue.c | 6 | ||||
-rw-r--r-- | src/core/transport/chttp2/frame_window_update.c | 4 | ||||
-rw-r--r-- | src/core/transport/chttp2/internal.h | 20 | ||||
-rw-r--r-- | src/core/transport/chttp2/parsing.c | 7 | ||||
-rw-r--r-- | src/core/transport/chttp2/stream_lists.c | 7 | ||||
-rw-r--r-- | src/core/transport/chttp2/writing.c | 49 | ||||
-rw-r--r-- | src/core/transport/chttp2_transport.c | 30 | ||||
-rw-r--r-- | src/core/transport/transport.h | 4 | ||||
-rw-r--r-- | src/core/transport/transport_op_string.c | 3 |
15 files changed, 121 insertions, 38 deletions
diff --git a/src/core/client_config/lb_policies/pick_first.h b/src/core/client_config/lb_policies/pick_first.h index 94c2a9f0c7..31394985e5 100644 --- a/src/core/client_config/lb_policies/pick_first.h +++ b/src/core/client_config/lb_policies/pick_first.h @@ -36,6 +36,8 @@ #include "src/core/client_config/lb_policy.h" +/** Returns a load balancing policy instance that picks up the first subchannel + * from \a subchannels to succesfully connect */ grpc_lb_policy *grpc_create_pick_first_lb_policy(grpc_subchannel **subchannels, size_t num_subchannels); diff --git a/src/core/client_config/uri_parser.c b/src/core/client_config/uri_parser.c index 776a255923..410a61c8cf 100644 --- a/src/core/client_config/uri_parser.c +++ b/src/core/client_config/uri_parser.c @@ -98,7 +98,7 @@ grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) { if (uri_text[scheme_end + 1] == '/' && uri_text[scheme_end + 2] == '/') { authority_begin = scheme_end + 3; - for (i = authority_begin; uri_text[i] != 0; i++) { + for (i = authority_begin; uri_text[i] != 0 && authority_end == -1; i++) { if (uri_text[i] == '/') { authority_end = i; } diff --git a/src/core/iomgr/pollset_set.h b/src/core/iomgr/pollset_set.h index 98e3b552a7..6d73951c70 100644 --- a/src/core/iomgr/pollset_set.h +++ b/src/core/iomgr/pollset_set.h @@ -38,7 +38,7 @@ /* A grpc_pollset_set is a set of pollsets that are interested in an action. Adding a pollset to a pollset_set automatically adds any - fd's (etc) that have been registered with the set_set with that pollset. + fd's (etc) that have been registered with the set_set to that pollset. Registering fd's automatically adds them to all current pollsets. */ #ifdef GPR_POSIX_SOCKET diff --git a/src/core/surface/byte_buffer_queue.c b/src/core/surface/byte_buffer_queue.c index 7c31bfe5da..e47dc4f4ce 100644 --- a/src/core/surface/byte_buffer_queue.c +++ b/src/core/surface/byte_buffer_queue.c @@ -62,6 +62,7 @@ int grpc_bbq_empty(grpc_byte_buffer_queue *q) { } void grpc_bbq_push(grpc_byte_buffer_queue *q, grpc_byte_buffer *buffer) { + q->bytes += grpc_byte_buffer_length(buffer); bba_push(&q->filling, buffer); } @@ -72,8 +73,11 @@ void grpc_bbq_flush(grpc_byte_buffer_queue *q) { } } +size_t grpc_bbq_bytes(grpc_byte_buffer_queue *q) { return q->bytes; } + grpc_byte_buffer *grpc_bbq_pop(grpc_byte_buffer_queue *q) { grpc_bbq_array temp_array; + grpc_byte_buffer *out; if (q->drain_pos == q->draining.count) { if (q->filling.count == 0) { @@ -87,5 +91,7 @@ grpc_byte_buffer *grpc_bbq_pop(grpc_byte_buffer_queue *q) { q->draining = temp_array; } - return q->draining.data[q->drain_pos++]; + out = q->draining.data[q->drain_pos++]; + q->bytes -= grpc_byte_buffer_length(out); + return out; } diff --git a/src/core/surface/byte_buffer_queue.h b/src/core/surface/byte_buffer_queue.h index 32c57f8756..f01958984f 100644 --- a/src/core/surface/byte_buffer_queue.h +++ b/src/core/surface/byte_buffer_queue.h @@ -49,6 +49,7 @@ typedef struct { size_t drain_pos; grpc_bbq_array filling; grpc_bbq_array draining; + size_t bytes; } grpc_byte_buffer_queue; void grpc_bbq_destroy(grpc_byte_buffer_queue *q); @@ -56,5 +57,6 @@ grpc_byte_buffer *grpc_bbq_pop(grpc_byte_buffer_queue *q); void grpc_bbq_flush(grpc_byte_buffer_queue *q); int grpc_bbq_empty(grpc_byte_buffer_queue *q); void grpc_bbq_push(grpc_byte_buffer_queue *q, grpc_byte_buffer *bb); +size_t grpc_bbq_bytes(grpc_byte_buffer_queue *q); #endif /* GRPC_INTERNAL_CORE_SURFACE_BYTE_BUFFER_QUEUE_H */ diff --git a/src/core/surface/call.c b/src/core/surface/call.c index 0a551ac47f..71f4235571 100644 --- a/src/core/surface/call.c +++ b/src/core/surface/call.c @@ -513,6 +513,8 @@ static void unlock(grpc_call *call) { int completing_requests = 0; int start_op = 0; int i; + const gpr_uint32 MAX_RECV_PEEK_AHEAD = 65536; + size_t buffered_bytes; int cancel_alarm = 0; memset(&op, 0, sizeof(op)); @@ -528,6 +530,17 @@ static void unlock(grpc_call *call) { op.recv_ops = &call->recv_ops; op.recv_state = &call->recv_state; op.on_done_recv = &call->on_done_recv; + if (grpc_bbq_empty(&call->incoming_queue) && call->reading_message) { + op.max_recv_bytes = call->incoming_message_length - + call->incoming_message.length + MAX_RECV_PEEK_AHEAD; + } else { + buffered_bytes = grpc_bbq_bytes(&call->incoming_queue); + if (buffered_bytes > MAX_RECV_PEEK_AHEAD) { + op.max_recv_bytes = 0; + } else { + op.max_recv_bytes = MAX_RECV_PEEK_AHEAD - buffered_bytes; + } + } call->receiving = 1; GRPC_CALL_INTERNAL_REF(call, "receiving"); start_op = 1; diff --git a/src/core/surface/completion_queue.c b/src/core/surface/completion_queue.c index c67f75fc5c..f3630b31dd 100644 --- a/src/core/surface/completion_queue.c +++ b/src/core/surface/completion_queue.c @@ -116,7 +116,7 @@ void grpc_cq_begin_op(grpc_completion_queue *cc) { void grpc_cq_end_op(grpc_completion_queue *cc, void *tag, int success, void (*done)(void *done_arg, grpc_cq_completion *storage), void *done_arg, grpc_cq_completion *storage) { - int shutdown = gpr_unref(&cc->pending_events); + int shutdown; storage->tag = tag; storage->done = done; @@ -124,15 +124,15 @@ void grpc_cq_end_op(grpc_completion_queue *cc, void *tag, int success, storage->next = ((gpr_uintptr)&cc->completed_head) | ((gpr_uintptr)(success != 0)); + gpr_mu_lock(GRPC_POLLSET_MU(&cc->pollset)); + shutdown = gpr_unref(&cc->pending_events); if (!shutdown) { - gpr_mu_lock(GRPC_POLLSET_MU(&cc->pollset)); cc->completed_tail->next = ((gpr_uintptr)storage) | (1u & (gpr_uintptr)cc->completed_tail->next); cc->completed_tail = storage; grpc_pollset_kick(&cc->pollset); gpr_mu_unlock(GRPC_POLLSET_MU(&cc->pollset)); } else { - gpr_mu_lock(GRPC_POLLSET_MU(&cc->pollset)); cc->completed_tail->next = ((gpr_uintptr)storage) | (1u & (gpr_uintptr)cc->completed_tail->next); cc->completed_tail = storage; diff --git a/src/core/transport/chttp2/frame_window_update.c b/src/core/transport/chttp2/frame_window_update.c index b817df7745..d624298ad2 100644 --- a/src/core/transport/chttp2/frame_window_update.c +++ b/src/core/transport/chttp2/frame_window_update.c @@ -94,8 +94,8 @@ grpc_chttp2_parse_error grpc_chttp2_window_update_parser_parse( } GPR_ASSERT(is_last); - if (transport_parsing->incoming_stream_id) { - if (stream_parsing) { + if (transport_parsing->incoming_stream_id != 0) { + if (stream_parsing != NULL) { GRPC_CHTTP2_FLOWCTL_TRACE_STREAM("update", transport_parsing, stream_parsing, outgoing_window_update, p->amount); diff --git a/src/core/transport/chttp2/internal.h b/src/core/transport/chttp2/internal.h index bdd4b432eb..e5e6f445b7 100644 --- a/src/core/transport/chttp2/internal.h +++ b/src/core/transport/chttp2/internal.h @@ -353,7 +353,19 @@ typedef struct { /** window available for us to send to peer */ gpr_int64 outgoing_window; - /** window available for peer to send to us - updated after parse */ + /** The number of bytes the upper layers have offered to receive. + As the upper layer offers more bytes, this value increases. + As bytes are read, this value decreases. */ + gpr_uint32 max_recv_bytes; + /** The number of bytes the upper layer has offered to read but we have + not yet announced to HTTP2 flow control. + As the upper layers offer to read more bytes, this value increases. + As we advertise incoming flow control window, this value decreases. */ + gpr_uint32 unannounced_incoming_window; + /** The number of bytes of HTTP2 flow control we have advertised. + As we advertise incoming flow control window, this value increases. + As bytes are read, this value decreases. + Updated after parse. */ gpr_uint32 incoming_window; /** stream ops the transport user would like to send */ grpc_stream_op_buffer *outgoing_sopb; @@ -391,6 +403,8 @@ typedef struct { grpc_stream_op_buffer sopb; /** how strongly should we indicate closure with the next write */ grpc_chttp2_send_closed send_closed; + /** how much window should we announce? */ + gpr_uint32 announce_window; } grpc_chttp2_stream_writing; struct grpc_chttp2_stream_parsing { @@ -501,7 +515,9 @@ void grpc_chttp2_list_add_writable_window_update_stream( grpc_chttp2_stream_global *stream_global); int grpc_chttp2_list_pop_writable_window_update_stream( grpc_chttp2_transport_global *transport_global, - grpc_chttp2_stream_global **stream_global); + grpc_chttp2_transport_writing *transport_writing, + grpc_chttp2_stream_global **stream_global, + grpc_chttp2_stream_writing **stream_writing); void grpc_chttp2_list_remove_writable_window_update_stream( grpc_chttp2_transport_global *transport_global, grpc_chttp2_stream_global *stream_global); diff --git a/src/core/transport/chttp2/parsing.c b/src/core/transport/chttp2/parsing.c index 9597395aab..82362544d5 100644 --- a/src/core/transport/chttp2/parsing.c +++ b/src/core/transport/chttp2/parsing.c @@ -173,7 +173,14 @@ void grpc_chttp2_publish_reads( GRPC_CHTTP2_FLOWCTL_TRACE_STREAM( "parsed", transport_parsing, stream_parsing, incoming_window_delta, -(gpr_int64)stream_parsing->incoming_window_delta); + GRPC_CHTTP2_FLOWCTL_TRACE_STREAM( + "parsed", transport_parsing, stream_global, max_recv_bytes, + -(gpr_int64)stream_parsing->incoming_window_delta); stream_global->incoming_window -= stream_parsing->incoming_window_delta; + GPR_ASSERT(stream_global->max_recv_bytes >= + stream_parsing->incoming_window_delta); + stream_global->max_recv_bytes -= + stream_parsing->incoming_window_delta; stream_parsing->incoming_window_delta = 0; grpc_chttp2_list_add_writable_window_update_stream(transport_global, stream_global); diff --git a/src/core/transport/chttp2/stream_lists.c b/src/core/transport/chttp2/stream_lists.c index 4fea058c19..590f6abfbc 100644 --- a/src/core/transport/chttp2/stream_lists.c +++ b/src/core/transport/chttp2/stream_lists.c @@ -139,6 +139,7 @@ static void stream_list_add(grpc_chttp2_transport *t, grpc_chttp2_stream *s, void grpc_chttp2_list_add_writable_stream( grpc_chttp2_transport_global *transport_global, grpc_chttp2_stream_global *stream_global) { + GPR_ASSERT(stream_global->id != 0); stream_list_add(TRANSPORT_FROM_GLOBAL(transport_global), STREAM_FROM_GLOBAL(stream_global), GRPC_CHTTP2_LIST_WRITABLE); } @@ -204,6 +205,7 @@ int grpc_chttp2_list_pop_written_stream( void grpc_chttp2_list_add_writable_window_update_stream( grpc_chttp2_transport_global *transport_global, grpc_chttp2_stream_global *stream_global) { + GPR_ASSERT(stream_global->id != 0); stream_list_add(TRANSPORT_FROM_GLOBAL(transport_global), STREAM_FROM_GLOBAL(stream_global), GRPC_CHTTP2_LIST_WRITABLE_WINDOW_UPDATE); @@ -211,11 +213,14 @@ void grpc_chttp2_list_add_writable_window_update_stream( int grpc_chttp2_list_pop_writable_window_update_stream( grpc_chttp2_transport_global *transport_global, - grpc_chttp2_stream_global **stream_global) { + grpc_chttp2_transport_writing *transport_writing, + grpc_chttp2_stream_global **stream_global, + grpc_chttp2_stream_writing **stream_writing) { grpc_chttp2_stream *stream; int r = stream_list_pop(TRANSPORT_FROM_GLOBAL(transport_global), &stream, GRPC_CHTTP2_LIST_WRITABLE_WINDOW_UPDATE); *stream_global = &stream->global; + *stream_writing = &stream->writing; return r; } diff --git a/src/core/transport/chttp2/writing.c b/src/core/transport/chttp2/writing.c index a78654334e..d8ec117aa5 100644 --- a/src/core/transport/chttp2/writing.c +++ b/src/core/transport/chttp2/writing.c @@ -66,11 +66,9 @@ int grpc_chttp2_unlocking_check_writes( /* for each grpc_chttp2_stream that's become writable, frame it's data (according to available window sizes) and add to the output buffer */ - while (transport_global->outgoing_window && - grpc_chttp2_list_pop_writable_stream(transport_global, + while (grpc_chttp2_list_pop_writable_stream(transport_global, transport_writing, &stream_global, - &stream_writing) && - stream_global->outgoing_window > 0) { + &stream_writing)) { stream_writing->id = stream_global->id; window_delta = grpc_chttp2_preencode( stream_global->outgoing_sopb->ops, &stream_global->outgoing_sopb->nops, @@ -106,20 +104,21 @@ int grpc_chttp2_unlocking_check_writes( /* for each grpc_chttp2_stream that wants to update its window, add that * window here */ while (grpc_chttp2_list_pop_writable_window_update_stream(transport_global, - &stream_global)) { - window_delta = - transport_global->settings[GRPC_LOCAL_SETTINGS] - [GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE] - - stream_global->incoming_window; - if (!stream_global->read_closed && window_delta > 0) { - gpr_slice_buffer_add( - &transport_writing->outbuf, - grpc_chttp2_window_update_create(stream_global->id, window_delta)); + transport_writing, + &stream_global, + &stream_writing)) { + stream_writing->id = stream_global->id; + if (!stream_global->read_closed && stream_global->unannounced_incoming_window > 0) { + stream_writing->announce_window = stream_global->unannounced_incoming_window; GRPC_CHTTP2_FLOWCTL_TRACE_STREAM("write", transport_global, stream_global, - incoming_window, window_delta); - stream_global->incoming_window += window_delta; + incoming_window, stream_global->unannounced_incoming_window); + GRPC_CHTTP2_FLOWCTL_TRACE_STREAM("write", transport_global, stream_global, + unannounced_incoming_window, -(gpr_int64)stream_global->unannounced_incoming_window); + stream_global->incoming_window += stream_global->unannounced_incoming_window; + stream_global->unannounced_incoming_window = 0; grpc_chttp2_list_add_incoming_window_updated(transport_global, stream_global); + grpc_chttp2_list_add_writing_stream(transport_writing, stream_writing); } } @@ -169,10 +168,19 @@ static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing) { while ( grpc_chttp2_list_pop_writing_stream(transport_writing, &stream_writing)) { - grpc_chttp2_encode(stream_writing->sopb.ops, stream_writing->sopb.nops, - stream_writing->send_closed != GRPC_DONT_SEND_CLOSED, - stream_writing->id, &transport_writing->hpack_compressor, - &transport_writing->outbuf); + if (stream_writing->sopb.nops > 0 || stream_writing->send_closed != GRPC_DONT_SEND_CLOSED) { + grpc_chttp2_encode(stream_writing->sopb.ops, stream_writing->sopb.nops, + stream_writing->send_closed != GRPC_DONT_SEND_CLOSED, + stream_writing->id, &transport_writing->hpack_compressor, + &transport_writing->outbuf); + } + if (stream_writing->announce_window > 0) { + gpr_slice_buffer_add( + &transport_writing->outbuf, + grpc_chttp2_window_update_create( + stream_writing->id, stream_writing->announce_window)); + stream_writing->announce_window = 0; + } stream_writing->sopb.nops = 0; if (stream_writing->send_closed == GRPC_SEND_CLOSED_WITH_RST_STREAM) { gpr_slice_buffer_add(&transport_writing->outbuf, @@ -197,7 +205,8 @@ void grpc_chttp2_cleanup_writing( while (grpc_chttp2_list_pop_written_stream( transport_global, transport_writing, &stream_global, &stream_writing)) { - if (stream_global->outgoing_sopb->nops == 0) { + if (stream_global->outgoing_sopb != NULL && + stream_global->outgoing_sopb->nops == 0) { stream_global->outgoing_sopb = NULL; grpc_chttp2_schedule_closure(transport_global, stream_global->send_done_closure, 1); diff --git a/src/core/transport/chttp2_transport.c b/src/core/transport/chttp2_transport.c index ac399e4a1d..c923d5e42f 100644 --- a/src/core/transport/chttp2_transport.c +++ b/src/core/transport/chttp2_transport.c @@ -358,7 +358,9 @@ static int init_stream(grpc_transport *gt, grpc_stream *gs, s->global.outgoing_window = t->global.settings[GRPC_PEER_SETTINGS] [GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE]; - s->parsing.incoming_window = s->global.incoming_window = + s->global.max_recv_bytes = + s->parsing.incoming_window = + s->global.incoming_window = t->global.settings[GRPC_SENT_SETTINGS] [GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE]; *t->accepting_stream = s; @@ -562,6 +564,8 @@ static void maybe_start_some_streams( stream_global->incoming_window = transport_global->settings[GRPC_SENT_SETTINGS] [GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE]; + stream_global->max_recv_bytes = + GPR_MAX(stream_global->incoming_window, stream_global->max_recv_bytes); grpc_chttp2_stream_map_add( &TRANSPORT_FROM_GLOBAL(transport_global)->new_stream_map, stream_global->id, STREAM_FROM_GLOBAL(stream_global)); @@ -570,6 +574,9 @@ static void maybe_start_some_streams( grpc_chttp2_list_add_incoming_window_updated(transport_global, stream_global); grpc_chttp2_list_add_writable_stream(transport_global, stream_global); + grpc_chttp2_list_add_writable_window_update_stream(transport_global, + stream_global); + } /* cancel out streams that will never be started */ while (transport_global->next_stream_id >= MAX_CLIENT_STREAM_ID && @@ -620,12 +627,23 @@ static void perform_stream_op_locked( stream_global->publish_sopb = op->recv_ops; stream_global->publish_sopb->nops = 0; stream_global->publish_state = op->recv_state; + if (stream_global->max_recv_bytes < op->max_recv_bytes) { + GRPC_CHTTP2_FLOWCTL_TRACE_STREAM("op", transport_global, stream_global, + max_recv_bytes, op->max_recv_bytes - stream_global->max_recv_bytes); + GRPC_CHTTP2_FLOWCTL_TRACE_STREAM( + "op", transport_global, stream_global, unannounced_incoming_window, + op->max_recv_bytes - stream_global->max_recv_bytes); + stream_global->unannounced_incoming_window += op->max_recv_bytes - stream_global->max_recv_bytes; + stream_global->max_recv_bytes = op->max_recv_bytes; + } grpc_chttp2_incoming_metadata_live_op_buffer_end( &stream_global->outstanding_metadata); - grpc_chttp2_list_add_read_write_state_changed(transport_global, - stream_global); - grpc_chttp2_list_add_writable_window_update_stream(transport_global, - stream_global); + if (stream_global->id != 0) { + grpc_chttp2_list_add_read_write_state_changed(transport_global, + stream_global); + grpc_chttp2_list_add_writable_window_update_stream(transport_global, + stream_global); + } } if (op->bind_pollset) { @@ -1038,7 +1056,7 @@ void grpc_chttp2_flowctl_trace(const char *file, int line, const char *reason, identifier = gpr_strdup(context_scope); } gpr_log(GPR_INFO, - "FLOWCTL: %s %-10s %8s %-23s %8lld %c %8lld = %8lld %-10s [%s:%d]", + "FLOWCTL: %s %-10s %8s %-27s %8lld %c %8lld = %8lld %-10s [%s:%d]", is_client ? "client" : "server", identifier, context_thread, var, current_value, delta < 0 ? '-' : '+', delta < 0 ? -delta : delta, current_value + delta, reason, file, line); diff --git a/src/core/transport/transport.h b/src/core/transport/transport.h index 1429737721..64503604ee 100644 --- a/src/core/transport/transport.h +++ b/src/core/transport/transport.h @@ -72,6 +72,10 @@ typedef struct grpc_transport_stream_op { grpc_stream_op_buffer *recv_ops; grpc_stream_state *recv_state; + /** The number of bytes this peer is currently prepared to receive. + These bytes will be eventually used to replenish per-stream flow control + windows. */ + gpr_uint32 max_recv_bytes; grpc_iomgr_closure *on_done_recv; grpc_pollset *bind_pollset; diff --git a/src/core/transport/transport_op_string.c b/src/core/transport/transport_op_string.c index 0da396a320..862eb40c4b 100644 --- a/src/core/transport/transport_op_string.c +++ b/src/core/transport/transport_op_string.c @@ -128,7 +128,8 @@ char *grpc_transport_stream_op_string(grpc_transport_stream_op *op) { if (op->recv_ops) { if (!first) gpr_strvec_add(&b, gpr_strdup(" ")); first = 0; - gpr_strvec_add(&b, gpr_strdup("RECV")); + gpr_asprintf(&tmp, "RECV:max_recv_bytes=%d", op->max_recv_bytes); + gpr_strvec_add(&b, tmp); } if (op->bind_pollset) { |