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authorGravatar Vijay Pai <vpai@google.com>2016-08-09 00:50:59 -0500
committerGravatar Vijay Pai <vpai@google.com>2016-08-09 00:51:42 -0500
commit2d33d78ac5d5f5eca862bdbb0dd6a2e986b6ddbc (patch)
treefbde6913fba98e00aebdbc5f045865dc7f2c21ad /src/core/ext/transport
parent50be893eba595a8cf270da3e59edd87128b854c9 (diff)
Proxy for @ghemawat: Removed an unnecessary error allocation from chttp2 code.
Diffstat (limited to 'src/core/ext/transport')
-rw-r--r--src/core/ext/transport/chttp2/transport/chttp2_transport.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 6bd65cea02..751bc8d72e 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -94,7 +94,8 @@ static void initiate_writing(grpc_exec_ctx *exec_ctx, void *t,
static void start_writing(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t);
static void end_waiting_for_write(grpc_exec_ctx *exec_ctx,
- grpc_chttp2_transport *t, grpc_error *error);
+ grpc_chttp2_transport *t, grpc_error *error,
+ const char *reason);
/** Set a transport level setting, and push it to our peer */
static void push_setting(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
@@ -876,7 +877,7 @@ static void start_writing(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) {
set_write_state(t, GRPC_CHTTP2_WRITING_INACTIVE,
"start_writing:nothing_to_write");
}
- end_waiting_for_write(exec_ctx, t, GRPC_ERROR_CREATE("Nothing to write"));
+ end_waiting_for_write(exec_ctx, t, GRPC_ERROR_NONE, "Nothing to write");
if (t->ep && !t->endpoint_reading) {
destroy_endpoint(exec_ctx, t);
}
@@ -925,11 +926,18 @@ static void push_setting(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
}
}
+/* error may be GRPC_ERROR_NONE if there is no error allocated yet.
+ In that case, use "reason" as the text for a new error. */
static void end_waiting_for_write(grpc_exec_ctx *exec_ctx,
- grpc_chttp2_transport *t, grpc_error *error) {
+ grpc_chttp2_transport *t, grpc_error *error,
+ const char *reason) {
grpc_chttp2_stream_global *stream_global;
while (grpc_chttp2_list_pop_closed_waiting_for_writing(&t->global,
&stream_global)) {
+ if (error == GRPC_ERROR_NONE && reason != NULL) {
+ /* create error object. */
+ error = GRPC_ERROR_CREATE(reason);
+ }
fail_pending_writes(exec_ctx, &t->global, stream_global,
GRPC_ERROR_REF(error));
GRPC_CHTTP2_STREAM_UNREF(exec_ctx, stream_global, "finish_writes");
@@ -951,7 +959,7 @@ static void terminate_writing_with_lock(grpc_exec_ctx *exec_ctx,
grpc_chttp2_cleanup_writing(exec_ctx, &t->global, &t->writing);
- end_waiting_for_write(exec_ctx, t, error);
+ end_waiting_for_write(exec_ctx, t, error, NULL);
switch (t->executor.write_state) {
case GRPC_CHTTP2_WRITING_INACTIVE: