Fix upb's parsetostruct benchmark.

Makefile

@@ -180,7 +180,9 @@ tools/upbc: core/libupb.a
 #UPB_BENCHMARKS=benchmarks/b.parsetostruct_googlemessage1.upb_table \
 #               benchmarks/b.parsetostruct_googlemessage2.upb_table
 UPB_BENCHMARKS=benchmarks/b.parsestream_googlemessage1.upb_table \
-               benchmarks/b.parsestream_googlemessage2.upb_table
+               benchmarks/b.parsestream_googlemessage2.upb_table \
+               benchmarks/b.parsetostruct_googlemessage1.upb_table_byref \
+               benchmarks/b.parsetostruct_googlemessage2.upb_table_byref
 
 BENCHMARKS=$(UPB_BENCHMARKS) \
            benchmarks/b.parsetostruct_googlemessage1.proto2_table \

benchmarks/parsetostruct.upb_table.c

@@ -1,80 +1,76 @@
 
 #include "main.c"
 
-#include "upb_data.h"
 #include "upb_def.h"
 #include "upb_decoder.h"
+#include "upb_strstream.h"
+#include "upb_glue.h"
+#include "upb_msg.h"
 
-static upb_symtab *s;
-static upb_strptr str;
+static upb_string *input_str;
 static upb_msgdef *def;
-static upb_msg *msgs[NUM_MESSAGES];
-static upb_decoder *decoder;
-static upb_msgsink *sink;
+static upb_msg *msg;
 
 static bool initialize()
 {
   // Initialize upb state, decode descriptor.
   upb_status status = UPB_STATUS_INIT;
-  s = upb_symtab_new();
-  upb_strptr fds = upb_strreadfile(MESSAGE_DESCRIPTOR_FILE);
-  if(upb_string_isnull(fds)) {
-    fprintf(stderr, "Couldn't read " MESSAGE_DESCRIPTOR_FILE ": %s.\n",
-            status.msg);
+  upb_symtab *s = upb_symtab_new();
+  upb_symtab_add_descriptorproto(s);
+
+  upb_string *fds_str = upb_strreadfile(MESSAGE_DESCRIPTOR_FILE);
+  if(fds_str == NULL) {
+    fprintf(stderr, "Couldn't read " MESSAGE_DESCRIPTOR_FILE ":"),
+    upb_printerr(&status);
     return false;
   }
-  upb_symtab_add_desc(s, fds, &status);
+  upb_parsedesc(s, fds_str, &status);
+  upb_string_unref(fds_str);
+
   if(!upb_ok(&status)) {
-    fprintf(stderr, "Error importing " MESSAGE_DESCRIPTOR_FILE ": %s.\n",
-            status.msg);
+    fprintf(stderr, "Error importing " MESSAGE_DESCRIPTOR_FILE ":");
+    upb_printerr(&status);
     return false;
   }
-  upb_string_unref(fds);
 
-  upb_strptr proto_name = upb_strdupc(MESSAGE_NAME);
-  def = upb_downcast_msgdef(upb_symtab_lookup(s, proto_name));
+  def = upb_dyncast_msgdef(upb_symtab_lookup(s, UPB_STRLIT(MESSAGE_NAME)));
   if(!def) {
     fprintf(stderr, "Error finding symbol '" UPB_STRFMT "'.\n",
-            UPB_STRARG(proto_name));
+            UPB_STRARG(UPB_STRLIT(MESSAGE_NAME)));
     return false;
   }
-  upb_string_unref(proto_name);
-
-  for(int i = 0; i < NUM_MESSAGES; i++)
-    msgs[i] = upb_msg_new(def);
+  upb_symtab_unref(s);
 
   // Read the message data itself.
-  str = upb_strreadfile(MESSAGE_FILE);
-  if(upb_string_isnull(str)) {
+  input_str = upb_strreadfile(MESSAGE_FILE);
+  if(input_str == NULL) {
     fprintf(stderr, "Error reading " MESSAGE_FILE "\n");
     return false;
   }
-  decoder = upb_decoder_new(def);
-  sink = upb_msgsink_new(def);
+  upb_status_uninit(&status);
+  msg = upb_msg_new(def);
   return true;
 }
 
 static void cleanup()
 {
-  for(int i = 0; i < NUM_MESSAGES; i++)
-    upb_msg_unref(msgs[i], def);
-  upb_string_unref(str);
-  upb_symtab_unref(s);
-  upb_decoder_free(decoder);
-  upb_msgsink_free(sink);
+  upb_string_unref(input_str);
+  upb_msg_unref(msg, def);
+  upb_def_unref(UPB_UPCAST(def));
 }
 
 static size_t run(int i)
 {
+  (void)i;
   upb_status status = UPB_STATUS_INIT;
-  upb_msg *msg = msgs[i%NUM_MESSAGES];
-  upb_msgsink_reset(sink, msg);
-  upb_decoder_reset(decoder, upb_msgsink_sink(sink));
   upb_msg_clear(msg, def);
-  size_t decoded = upb_decoder_decode(decoder, str, &status);
-  if(!upb_ok(&status) || decoded != upb_strlen(str)) {
-    fprintf(stderr, "Decode error: %s\n", status.msg);
+  upb_strtomsg(input_str, msg, def, &status);
+  if(!upb_ok(&status)) goto err;
+  upb_status_uninit(&status);
+  return upb_string_len(input_str);
+
+err:
+  fprintf(stderr, "Decode error: ");
+  upb_printerr(&status);
   return 0;
 }
-  return upb_strlen(str);
-}

core/upb_msg.c

@@ -73,7 +73,7 @@ upb_array *upb_array_new(void) {
 
 void upb_array_recycle(upb_array **_arr, upb_fielddef *f) {
   upb_array *arr = *_arr;
-  if(arr && upb_atomic_read(&arr->refcount) == 1) {
+  if(arr && upb_atomic_only(&arr->refcount)) {
     arr->len = 0;
   } else {
     upb_array_unref(arr, f);
@@ -133,7 +133,7 @@ void _upb_msg_free(upb_msg *msg, upb_msgdef *md) {
 
 void upb_msg_recycle(upb_msg **_msg, upb_msgdef *msgdef) {
   upb_msg *msg = *_msg;
-  if(msg && upb_atomic_read(&msg->refcount) == 1) {
+  if(msg && upb_atomic_only(&msg->refcount)) {
     upb_msg_clear(msg, msgdef);
   } else {
     upb_msg_unref(msg, msgdef);
@@ -168,7 +168,7 @@ static void upb_msg_appendval(upb_msg *msg, upb_fielddef *f, upb_value val) {
     // We do:
     //  - upb_string_recycle(), upb_string_substr() instead of
     //  - upb_string_unref(), upb_string_getref()
-    // because we can conveniently caching these upb_string objects in the
+    // because we can conveniently cache these upb_string objects in the
     // upb_msg, whereas the upb_src who is sending us these strings may not
     // have a good way of caching them.  This saves the upb_src from allocating
     // new upb_strings all the time to give us.
@@ -190,7 +190,6 @@ upb_msg *upb_msg_appendmsg(upb_msg *msg, upb_fielddef *f, upb_msgdef *msgdef) {
   upb_valueptr p = upb_msg_getappendptr(msg, f);
   if (upb_isarray(f) || !upb_msg_has(msg, f)) {
     upb_msg_recycle(p.msg, msgdef);
-    upb_msg_clear(*p.msg, msgdef);
     upb_msg_sethas(msg, f);
   }
   return *p.msg;