diff options
author | Craig Tiller <ctiller@google.com> | 2016-06-23 13:55:06 -0700 |
---|---|---|
committer | Craig Tiller <ctiller@google.com> | 2016-06-23 13:55:06 -0700 |
commit | f0f70a8a68c107f9fcff2dd35867fd762c2c13d6 (patch) | |
tree | a64ce4dfc7103299acf5d033e745c39be88bbcef /src/core/lib/transport | |
parent | d605b63383678313aaf3a6a3be7d8f9fc7ca67e9 (diff) |
Make transport-level errors be reflected in status messages on calls
Allows us to eliminate logging those errors by default (since they are explicitly passed up to the application).
Required plumbing errors through the stack a little more deeply than we
had previously.
Diffstat (limited to 'src/core/lib/transport')
-rw-r--r-- | src/core/lib/transport/transport.c | 65 | ||||
-rw-r--r-- | src/core/lib/transport/transport.h | 9 | ||||
-rw-r--r-- | src/core/lib/transport/transport_op_string.c | 15 |
3 files changed, 54 insertions, 35 deletions
diff --git a/src/core/lib/transport/transport.c b/src/core/lib/transport/transport.c index 1105494a85..67920b0527 100644 --- a/src/core/lib/transport/transport.c +++ b/src/core/lib/transport/transport.c @@ -36,6 +36,7 @@ #include <grpc/support/atm.h> #include <grpc/support/log.h> #include <grpc/support/sync.h> +#include "src/core/lib/support/string.h" #include "src/core/lib/transport/transport_impl.h" #ifdef GRPC_STREAM_REFCOUNT_DEBUG @@ -162,55 +163,63 @@ void grpc_transport_stream_op_finish_with_failure(grpc_exec_ctx *exec_ctx, grpc_exec_ctx_sched(exec_ctx, op->on_complete, error, NULL); } -void grpc_transport_stream_op_add_cancellation(grpc_transport_stream_op *op, - grpc_status_code status) { - GPR_ASSERT(status != GRPC_STATUS_OK); - if (op->cancel_with_status == GRPC_STATUS_OK) { - op->cancel_with_status = status; - } - if (op->close_with_status != GRPC_STATUS_OK) { - op->close_with_status = GRPC_STATUS_OK; - if (op->optional_close_message != NULL) { - gpr_slice_unref(*op->optional_close_message); - op->optional_close_message = NULL; - } - } -} - typedef struct { - gpr_slice message; + grpc_error *error; grpc_closure *then_call; grpc_closure closure; } close_message_data; static void free_message(grpc_exec_ctx *exec_ctx, void *p, grpc_error *error) { close_message_data *cmd = p; - gpr_slice_unref(cmd->message); + GRPC_ERROR_UNREF(cmd->error); if (cmd->then_call != NULL) { cmd->then_call->cb(exec_ctx, cmd->then_call->cb_arg, GRPC_ERROR_REF(error)); } gpr_free(cmd); } +static void add_error(grpc_transport_stream_op *op, grpc_error **which, + grpc_error *error) { + close_message_data *cmd; + cmd = gpr_malloc(sizeof(*cmd)); + cmd->error = error; + cmd->then_call = op->on_complete; + grpc_closure_init(&cmd->closure, free_message, cmd); + op->on_complete = &cmd->closure; + *which = error; +} + +void grpc_transport_stream_op_add_cancellation(grpc_transport_stream_op *op, + grpc_status_code status) { + GPR_ASSERT(status != GRPC_STATUS_OK); + if (op->cancel_error == GRPC_STATUS_OK) { + op->cancel_error = grpc_error_set_int(GRPC_ERROR_CANCELLED, + GRPC_ERROR_INT_GRPC_STATUS, status); + op->close_error = GRPC_ERROR_NONE; + } +} + void grpc_transport_stream_op_add_close(grpc_transport_stream_op *op, grpc_status_code status, gpr_slice *optional_message) { - close_message_data *cmd; GPR_ASSERT(status != GRPC_STATUS_OK); - if (op->cancel_with_status != GRPC_STATUS_OK || - op->close_with_status != GRPC_STATUS_OK) { + if (op->cancel_error != GRPC_ERROR_NONE || + op->close_error != GRPC_ERROR_NONE) { if (optional_message) { gpr_slice_unref(*optional_message); } return; } - if (optional_message) { - cmd = gpr_malloc(sizeof(*cmd)); - cmd->message = *optional_message; - cmd->then_call = op->on_complete; - grpc_closure_init(&cmd->closure, free_message, cmd); - op->on_complete = &cmd->closure; - op->optional_close_message = &cmd->message; + grpc_error *error; + if (optional_message != NULL) { + char *msg = gpr_dump_slice(*optional_message, GPR_DUMP_ASCII); + error = grpc_error_set_str(GRPC_ERROR_CREATE(msg), + GRPC_ERROR_STR_GRPC_MESSAGE, msg); + gpr_free(msg); + gpr_slice_unref(*optional_message); + } else { + error = GRPC_ERROR_CREATE("Call force closed"); } - op->close_with_status = status; + error = grpc_error_set_int(error, GRPC_ERROR_INT_GRPC_STATUS, status); + add_error(op, &op->close_error, error); } diff --git a/src/core/lib/transport/transport.h b/src/core/lib/transport/transport.h index a46ccb643c..d2f6344ee3 100644 --- a/src/core/lib/transport/transport.h +++ b/src/core/lib/transport/transport.h @@ -135,13 +135,12 @@ typedef struct grpc_transport_stream_op { /** Collect any stats into provided buffer, zero internal stat counters */ grpc_transport_stream_stats *collect_stats; - /** If != GRPC_STATUS_OK, cancel this stream */ - grpc_status_code cancel_with_status; + /** If != GRPC_ERROR_NONE, cancel this stream */ + grpc_error *cancel_error; - /** If != GRPC_STATUS_OK, send grpc-status, grpc-message, and close this + /** If != GRPC_ERROR, send grpc-status, grpc-message, and close this stream for both reading and writing */ - grpc_status_code close_with_status; - gpr_slice *optional_close_message; + grpc_error *close_error; /* Indexes correspond to grpc_context_index enum values */ grpc_call_context_element *context; diff --git a/src/core/lib/transport/transport_op_string.c b/src/core/lib/transport/transport_op_string.c index df04c61127..a862401df2 100644 --- a/src/core/lib/transport/transport_op_string.c +++ b/src/core/lib/transport/transport_op_string.c @@ -119,10 +119,21 @@ char *grpc_transport_stream_op_string(grpc_transport_stream_op *op) { gpr_strvec_add(&b, gpr_strdup("RECV_TRAILING_METADATA")); } - if (op->cancel_with_status != GRPC_STATUS_OK) { + if (op->cancel_error != GRPC_STATUS_OK) { if (!first) gpr_strvec_add(&b, gpr_strdup(" ")); first = 0; - gpr_asprintf(&tmp, "CANCEL:%d", op->cancel_with_status); + const char *msg = grpc_error_string(op->cancel_error); + gpr_asprintf(&tmp, "CANCEL:%s", msg); + grpc_error_free_string(msg); + gpr_strvec_add(&b, tmp); + } + + if (op->close_error != GRPC_STATUS_OK) { + if (!first) gpr_strvec_add(&b, gpr_strdup(" ")); + first = 0; + const char *msg = grpc_error_string(op->close_error); + gpr_asprintf(&tmp, "CLOSE:%s", msg); + grpc_error_free_string(msg); gpr_strvec_add(&b, tmp); } |