static void composite_call_metadata_cb(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_credentials_md *md_elems,
size_t num_md,
grpc_credentials_status status) {
grpc_composite_call_credentials_metadata_context *ctx =
(grpc_composite_call_credentials_metadata_context *)user_data;
if (status != GRPC_CREDENTIALS_OK) {
ctx->cb(exec_ctx, ctx->user_data, NULL, 0, status);
return;
}
/* Copy the metadata in the context. */
if (num_md > 0) {
size_t i;
for (i = 0; i < num_md; i++) {
grpc_credentials_md_store_add(ctx->md_elems, md_elems[i].key,
md_elems[i].value);
}
}
/* See if we need to get some more metadata. */
if (ctx->creds_index < ctx->composite_creds->inner.num_creds) {
grpc_call_credentials *inner_creds =
ctx->composite_creds->inner.creds_array[ctx->creds_index++];
grpc_call_credentials_get_request_metadata(
exec_ctx, inner_creds, ctx->pollset, ctx->auth_md_context,
composite_call_metadata_cb, ctx);
return;
}
/* We're done!. */
ctx->cb(exec_ctx, ctx->user_data, ctx->md_elems->entries,
ctx->md_elems->num_entries, GRPC_CREDENTIALS_OK);
composite_call_md_context_destroy(ctx);
}
static void test_add_to_empty_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
const char *key_str = "hello";
const char *value_str = "there blah blah blah blah blah blah blah";
gpr_slice key = gpr_slice_from_copied_string(key_str);
gpr_slice value = gpr_slice_from_copied_string(value_str);
grpc_credentials_md_store_add(store, key, value);
GPR_ASSERT(store->num_entries == 1);
GPR_ASSERT(gpr_slice_cmp(key, store->entries[0].key) == 0);
GPR_ASSERT(gpr_slice_cmp(value, store->entries[0].value) == 0);
gpr_slice_unref(key);
gpr_slice_unref(value);
grpc_credentials_md_store_unref(store);
}
