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Fix #1288 - better mg_iobuf_append allocation strategy

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cpq committed 2021-05-29 09:44:07 +01:00
1 parent c0a8546330
commit 9d68e20dcc
3 files changed
+23 -8
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src/iobuf.c
+7 -4
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@@ -44,10 +44,13 @@ int mg_iobuf_init(struct mg_iobuf *io, size_t size) {
size_t mg_iobuf_append(struct mg_iobuf *io, const void *buf, size_t len,
size_t chunk_size) {
size_t new_size = io->len + len + chunk_size;
new_size -= new_size % chunk_size;
if (new_size != io->size) mg_iobuf_resize(io, new_size);
if (new_size != io->size) len = 0; // Realloc failure, append nothing
size_t new_size = io->len + len;
if (new_size > io->size) {
new_size += chunk_size;
new_size -= new_size % chunk_size;
if (new_size != io->size) mg_iobuf_resize(io, new_size);
if (new_size != io->size) len = 0; // Realloc failure, append nothing
}
if (buf != NULL) memmove(io->buf + io->len, buf, len);
io->len += len;
return len;