commit 35cca6c55330a7856d646faee8f4677796fe0b54
from: Omar Polo <op@omarpolo.com>
date: Thu Sep 07 17:23:35 2023 UTC

amused-web: allocate lazily the (double) buffer for chunking

commit - 8701aaaaba7c99c87459f1d34a7b1acdd897f19c
commit + 35cca6c55330a7856d646faee8f4677796fe0b54
blob - cf1886b7394788345da11d0363983447cd901bc8
blob + d4bb9f21482cb2d263537bbf911346ba36f62299
--- web/http.c
+++ web/http.c
@@ -315,9 +315,25 @@ http_write(struct client *clt, const char *d, size_t l
 
 	if (clt->err)
 		return -1;
+
+	if (!clt->bio.chunked) {
+		if (bufio_compose(&clt->bio, d, len) == -1) {
+			clt->err = 1;
+			return -1;
+		}
+		return 0;
+	}
 
+	if (clt->buf == NULL) {
+		clt->cap = 1024;
+		if ((clt->buf = malloc(clt->cap)) == NULL) {
+			clt->err = 1;
+			return -1;
+		}
+	}
+
 	while (len > 0) {
-		avail = sizeof(clt->buf) - clt->len;
+		avail = clt->cap - clt->len;
 		if (avail > len)
 			avail = len;
 
@@ -325,7 +341,7 @@ http_write(struct client *clt, const char *d, size_t l
 		clt->len += avail;
 		len -= avail;
 		d += avail;
-		if (clt->len == sizeof(clt->buf)) {
+		if (clt->len == clt->cap) {
 			if (http_flush(clt) == -1)
 				return -1;
 		}
@@ -437,6 +453,7 @@ http_close(struct client *clt)
 void
 http_free(struct client *clt)
 {
+	free(clt->buf);
 	free(clt->req.path);
 	free(clt->req.secret);
 	free(clt->req.ctype);
blob - 781a9319946305f5b6e5d037ebe3cd9c85b16221
blob + 514b988b6d81110b702843d8f390bb3d6e649c02
--- web/http.h
+++ web/http.h
@@ -56,8 +56,9 @@ typedef void (*route_fn)(struct client *);
 
 TAILQ_HEAD(clthead, client);
 struct client {
-	char		buf[1024];
+	char		*buf;
 	size_t		len;
+	size_t		cap;
 	struct bufio	bio;
 	struct request	req;
 	int		err;