diff options
author | 2018-10-16 11:18:38 -0700 | |
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committer | 2018-10-16 11:18:38 -0700 | |
commit | 0c805cf6edc0f8eca72b5323f811821471c4e987 (patch) | |
tree | 6c21ee517f44245f1f3188dcfbe507a4f00e85ee /src/core/ext/filters/client_channel/client_channel.cc | |
parent | 17048446cc034eec2c35d16eab3e1640453111ec (diff) | |
parent | c13260802edf099f33fab26aa6b6b43aa4f4e5c0 (diff) |
Merge pull request #16887 from ncteisen/channel-tracing
Channelz Part 10: More Channel Tracing
Diffstat (limited to 'src/core/ext/filters/client_channel/client_channel.cc')
-rw-r--r-- | src/core/ext/filters/client_channel/client_channel.cc | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/core/ext/filters/client_channel/client_channel.cc b/src/core/ext/filters/client_channel/client_channel.cc index d63e2c66c2..23da11363b 100644 --- a/src/core/ext/filters/client_channel/client_channel.cc +++ b/src/core/ext/filters/client_channel/client_channel.cc @@ -129,6 +129,8 @@ typedef struct client_channel_channel_data { grpc_core::UniquePtr<char> info_lb_policy_name; /** service config in JSON form */ grpc_core::UniquePtr<char> info_service_config_json; + /* backpointer to grpc_channel's channelz node */ + grpc_core::channelz::ClientChannelNode* channelz_channel; } channel_data; typedef struct { @@ -153,6 +155,23 @@ static void watch_lb_policy_locked(channel_data* chand, grpc_core::LoadBalancingPolicy* lb_policy, grpc_connectivity_state current_state); +static const char* channel_connectivity_state_change_string( + grpc_connectivity_state state) { + switch (state) { + case GRPC_CHANNEL_IDLE: + return "Channel state change to IDLE"; + case GRPC_CHANNEL_CONNECTING: + return "Channel state change to CONNECTING"; + case GRPC_CHANNEL_READY: + return "Channel state change to READY"; + case GRPC_CHANNEL_TRANSIENT_FAILURE: + return "Channel state change to TRANSIENT_FAILURE"; + case GRPC_CHANNEL_SHUTDOWN: + return "Channel state change to SHUTDOWN"; + } + GPR_UNREACHABLE_CODE(return "UNKNOWN"); +} + static void set_channel_connectivity_state_locked(channel_data* chand, grpc_connectivity_state state, grpc_error* error, @@ -177,6 +196,12 @@ static void set_channel_connectivity_state_locked(channel_data* chand, gpr_log(GPR_INFO, "chand=%p: setting connectivity state to %s", chand, grpc_connectivity_state_name(state)); } + if (chand->channelz_channel != nullptr) { + chand->channelz_channel->AddTraceEvent( + grpc_core::channelz::ChannelTrace::Severity::Info, + grpc_slice_from_static_string( + channel_connectivity_state_change_string(state))); + } grpc_connectivity_state_set(&chand->state_tracker, state, error, reason); } @@ -699,6 +724,7 @@ static grpc_error* cc_init_channel_elem(grpc_channel_element* elem, // Record enable_retries. arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_ENABLE_RETRIES); chand->enable_retries = grpc_channel_arg_get_bool(arg, true); + chand->channelz_channel = nullptr; // Record client channel factory. arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_CLIENT_CHANNEL_FACTORY); @@ -3208,6 +3234,12 @@ static void try_to_connect_locked(void* arg, grpc_error* error_ignored) { GRPC_CHANNEL_STACK_UNREF(chand->owning_stack, "try_to_connect"); } +void grpc_client_channel_set_channelz_node( + grpc_channel_element* elem, grpc_core::channelz::ClientChannelNode* node) { + channel_data* chand = static_cast<channel_data*>(elem->channel_data); + chand->channelz_channel = node; +} + void grpc_client_channel_populate_child_refs( grpc_channel_element* elem, grpc_core::channelz::ChildRefsList* child_subchannels, |