From 755117ebf58cce6d38cde5236016c7c9158ba97b Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 19 Oct 2016 13:54:51 +0200 Subject: [PATCH] service: add support for instances without command This can be useful for maintaining active procd data for use in other services, even when no helper process is active. Signed-off-by: Felix Fietkau --- service/instance.c | 38 +++++++++++++++++++++++++------------- 1 file changed, 25 insertions(+), 13 deletions(-) diff --git a/service/instance.c b/service/instance.c index b783966..10e35ca 100644 --- a/service/instance.c +++ b/service/instance.c @@ -386,7 +386,7 @@ instance_start(struct service_instance *in) return; } - if (in->proc.pending) + if (in->proc.pending || !in->command) return; instance_free_stdio(in); @@ -753,31 +753,42 @@ instance_jail_parse(struct service_instance *in, struct blob_attr *attr) } static bool -instance_config_parse(struct service_instance *in) +instance_config_parse_command(struct service_instance *in, struct blob_attr **tb) { - struct blob_attr *tb[__INSTANCE_ATTR_MAX]; struct blob_attr *cur, *cur2; - int argc = 0; + bool ret = false; int rem; - blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb, - blobmsg_data(in->config), blobmsg_data_len(in->config)); - cur = tb[INSTANCE_ATTR_COMMAND]; - if (!cur) - return false; + if (!cur) { + in->command = NULL; + return true; + } if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING)) return false; blobmsg_for_each_attr(cur2, cur, rem) { - argc++; + ret = true; break; } - if (!argc) - return false; in->command = cur; + return ret; +} + +static bool +instance_config_parse(struct service_instance *in) +{ + struct blob_attr *tb[__INSTANCE_ATTR_MAX]; + struct blob_attr *cur, *cur2; + int rem; + + blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb, + blobmsg_data(in->config), blobmsg_data_len(in->config)); + + if (!instance_config_parse_command(in, tb)) + return false; if (tb[INSTANCE_ATTR_RESPAWN]) { int i = 0; @@ -981,7 +992,8 @@ void instance_dump(struct blob_buf *b, struct service_instance *in, int verbose) blobmsg_add_u8(b, "running", in->proc.pending); if (in->proc.pending) blobmsg_add_u32(b, "pid", in->proc.pid); - blobmsg_add_blob(b, in->command); + if (in->command) + blobmsg_add_blob(b, in->command); if (!avl_is_empty(&in->errors.avl)) { struct blobmsg_list_node *var; -- 2.25.1