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libubus: add logic to reduce msgbuf data size after 16 small messages

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Alexandru Ardelean 2014-06-27 19:11:41 +03:00 • committed by Felix Fietkau
parent 6d24ad71f6
commit 82da9db3a9
2 changed files with 14 additions and 0 deletions
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13
libubus-io.c
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@ -28,6 +28,8 @@
#define STATIC_IOV(_var) { .iov_base = (char *) &(_var), .iov_len = sizeof(_var) }
#define UBUS_MSGBUF_REDUCTION_INTERVAL 16
static const struct blob_attr_info ubus_policy[UBUS_ATTR_MAX] = {
[UBUS_ATTR_STATUS] = { .type = BLOB_ATTR_INT32 },
[UBUS_ATTR_OBJID] = { .type = BLOB_ATTR_INT32 },
@ -250,6 +252,17 @@ static bool get_next_msg(struct ubus_context *ctx, int *recv_fd)
len = blob_raw_len(&hdrbuf.data);
if (len > ctx->msgbuf_data_len) {
ctx->msgbuf_reduction_counter = UBUS_MSGBUF_REDUCTION_INTERVAL;
} else if (ctx->msgbuf_data_len > UBUS_MSG_CHUNK_SIZE) {
if (ctx->msgbuf_reduction_counter > 0) {
len = -1;
--ctx->msgbuf_reduction_counter;
} else
len = UBUS_MSG_CHUNK_SIZE;
} else
len = -1;
if (len > -1) {
ctx->msgbuf.data = realloc(ctx->msgbuf.data, len * sizeof(char));
if (ctx->msgbuf.data)
ctx->msgbuf_data_len = len;

1
libubus.h
View file

@ -156,6 +156,7 @@ struct ubus_context {
struct ubus_msghdr_buf msgbuf;
uint32_t msgbuf_data_len;
int msgbuf_reduction_counter;
};
struct ubus_object_data {