Emit generated runs in batches, not a write each

1 file changed, 7 insertions, 0 deletions

diff --git a/source/html.h b/source/html.h
index fa4de77..7572623 100644
--- a/source/html.h
+++ b/source/html.h
@@ -6,6 +6,13 @@
 extern void html_raw(const char *txt, size_t size);
 extern void html(const char *txt);
 
+/* How much of a generated run to build before handing it to html_raw. Batching
+ * is what removes the write per line, and html_raw already gathers what it is
+ * given into one buffer, so nothing is gained by growing past this. A run built
+ * whole would instead be sized by the file it was generated from, which the
+ * blob limits do not bound. */
+#define HTML_BATCH (64 * 1024)
+
 __attribute__((format (printf,1,2)))
 extern void htmlf(const char *format,...);