debugger: add step and follow commands

Signed-off-by: Balazs Scheidler <[email protected]>

lib/debugger/debugger.c

@@ -162,6 +162,8 @@ _cmd_help(Debugger *self, gint argc, gchar *argv[])
   printf("syslog-ng interactive console, the following commands are available\n\n"
          "  help, h, or ?            Display this help\n"
          "  continue or c            Continue until the next breakpoint\n"
+         "  step or s                Single step\n"
+         "  follow or f              Follow this message, ignoring any other breakpoints\n"
          "  trace or t               Trace this message along the configuration\n"
          "  info                     Display information about the current execution state\n"
          "  list or l                Display source code at the current location\n"
@@ -294,6 +296,13 @@ _cmd_continue(Debugger *self, gint argc, gchar *argv[])
   return FALSE;
 }
 
+static gboolean
+_cmd_step(Debugger *self, gint argc, gchar *argv[])
+{
+  _set_mode(self, DBG_WAITING_FOR_STEP, FALSE);
+  return FALSE;
+}
+
 static gboolean
 _cmd_trace(Debugger *self, gint argc, gchar *argv[])
 {
@@ -302,6 +311,13 @@ _cmd_trace(Debugger *self, gint argc, gchar *argv[])
   return FALSE;
 }
 
+static gboolean
+_cmd_follow(Debugger *self, gint argc, gchar *argv[])
+{
+  _set_mode(self, DBG_FOLLOW_AND_BREAK, TRUE);
+  return FALSE;
+}
+
 static gboolean
 _cmd_quit(Debugger *self, gint argc, gchar *argv[])
 {
@@ -326,6 +342,10 @@ struct
   { "?",        _cmd_help },
   { "continue", _cmd_continue },
   { "c",        _cmd_continue },
+  { "step",     _cmd_step },
+  { "s",        _cmd_step },
+  { "follow",   _cmd_follow, .requires_breakpoint_site = TRUE },
+  { "f",        _cmd_follow, .requires_breakpoint_site = TRUE },
   { "print",    _cmd_print, .requires_breakpoint_site = TRUE },
   { "p",        _cmd_print, .requires_breakpoint_site = TRUE },
   { "list",     _cmd_list, },