Fill out extra info for a process

Per request from the front-end, obtain extended information for
the process specified by tid, and compose reply with that info.

Change-Id: I514e20581b1a3513f68495b74e1f4c2f839870ad
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>

1 files changed, 54 insertions, 1 deletions

diff --git a/binding/task-manager-binding.c b/binding/task-manager-binding.c
index 16bbf9f..c9946c2 100644
--- a/binding/task-manager-binding.c
+++ b/binding/task-manager-binding.c
@@ -129,6 +129,52 @@ void kill_process(struct afb_req request)
 	/* we don't signal success, there's no use for it */
 }
 
+void get_extra_info(struct afb_req request)
+{
+	struct json_object *ret_json, *json_obj;
+	json_object *req = afb_req_json(request);
+	int tid = json_object_get_int(req);
+
+	ret_json = json_object_new_object();
+	json_obj = json_object_new_object();
+
+	char path[32];
+	char str_val[256];
+	char param[80];
+
+	sprintf(path, "/proc/%d/sched", tid);
+	FILE *fsched = fopen(path, "r");
+
+	if (fsched == NULL) {
+		afb_req_fail(request, "Failed", "Error processing arguments.");
+	}
+	else {
+		json_object_object_add(json_obj, "tid", json_object_new_int(tid));
+
+		fscanf(fsched, "%255s", str_val);
+		json_object_object_add(json_obj, "cmd", json_object_new_string(str_val));
+
+		fscanf(fsched, "%*s"); // the '-' line
+		while (!feof(fsched)) {
+			fscanf(fsched, "%79s%*s%255s", param, str_val);
+			if (strstr(param, "exec_start"))
+				json_object_object_add(json_obj, "exec_start", json_object_new_string(str_val));
+			else if (strstr(param, "vruntime"))
+				json_object_object_add(json_obj, "vruntime", json_object_new_string(str_val));
+			else if (strstr(param, "sum_exec_runtime"))
+				json_object_object_add(json_obj, "sum_exec_runtime", json_object_new_string(str_val));
+			else if (strstr(param, "prio"))
+				json_object_object_add(json_obj, "prio", json_object_new_string(str_val));
+		}
+	}
+	fclose(fsched);
+
+	json_object_object_add(ret_json, "msgType", json_object_new_string("extraInfo"));
+	json_object_object_add(ret_json, "info", json_obj);
+
+	afb_req_success(request, ret_json, NULL);
+}
+
 
 int fill_pstat(proc_t *proc_info, struct pstat *pstat_values)
 {
@@ -196,7 +242,14 @@ static const struct afb_verb_v2 _afb_verbs_v2_taskmanager[] = {
 		.auth = NULL,
 		.info = "Kill the process specified by tid",
 		.session = AFB_SESSION_NONE_V2
-	}
+	},
+	{
+		.verb = "get_extra_info",
+		.callback = get_extra_info,
+		.auth = NULL,
+		.info = "Get exta info about current process",
+		.session = AFB_SESSION_NONE_V2
+	},
 };