Create and use write_bigbuf() function for extra-large buffer sizes.

1 files changed, 13 insertions, 0 deletions

diff --git a/io.c b/io.c
index c5b1ebc4..264824e7 100644
--- a/io.c
+++ b/io.c
@@ -2087,6 +2087,19 @@ void write_longint(int f, int64 x)
 #endif
 }
 
+void write_bigbuf(int f, const char *buf, size_t len)
+{
+	size_t half_max = (iobuf.out.size - iobuf.out_empty_len) / 2;
+
+	while (len > half_max + 1024) {
+		write_buf(f, buf, half_max);
+		buf += half_max;
+		len -= half_max;
+	}
+
+	write_buf(f, buf, len);
+}
+
 void write_buf(int f, const char *buf, size_t len)
 {
 	size_t pos, siz;