[Xen-devel] [PATCH 2/4] xenstored logging: add control to dynamically toggle tracesyslog flag

[james-xen@xxxxxxxxxxxxxx]

From: James Dingwall <james@xxxxxxxxxxxxxx>

Add a new xenstore control command which allows the tracesyslog boolean to be
changed at run time.
---
 tools/xenstore/xenstored_control.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/tools/xenstore/xenstored_control.c 
b/tools/xenstore/xenstored_control.c
index e4b8aa95ab..120dc3aa98 100644
--- a/tools/xenstore/xenstored_control.c
+++ b/tools/xenstore/xenstored_control.c
@@ -76,6 +76,23 @@ static int do_control_logfile(void *ctx, struct connection 
*conn,
        return 0;
 }
 
+static int do_control_logsyslog(void *ctx, struct connection *conn,
+                         char **vec, int num)
+{
+       if (num != 1)
+               return EINVAL;
+
+       if (!strcmp(vec[0], "on"))
+               tracesyslog = true;
+       else if (!strcmp(vec[0], "off"))
+               tracesyslog = false;
+       else
+               return EINVAL;
+
+       send_ack(conn, XS_CONTROL);
+       return 0;
+}
+
 static int do_control_memreport(void *ctx, struct connection *conn,
                                char **vec, int num)
 {
@@ -133,6 +150,7 @@ static struct cmd_s cmds[] = {
        { "check", do_control_check, "" },
        { "log", do_control_log, "on|off" },
        { "logfile", do_control_logfile, "<file>" },
+       { "syslog", do_control_logsyslog, "on|off" },
        { "memreport", do_control_memreport, "[<file>]" },
        { "print", do_control_print, "<string>" },
        { "help", do_control_help, "" },
-- 
2.24.0


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