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Commit 7ba61b15 authored by Mike Lockwood's avatar Mike Lockwood
Browse files

init: Allow wildcards in property triggers by using * for property value 



For example, the following trigger will fire when the sys.foo property
is set to any value:

on property:sys.foo=*
    write /data/foo hello

It is also possible to refer to the property within the trigger actions:

on property:sys.foo=*
    write /data/foo $sys.foo

Change-Id: If78d20a532f77e17aa5703d53be581ad6736cbcf
Signed-off-by: default avatarMike Lockwood <lockwood@android.com>
parent 2c4d5dc4

init/init_parser.c

+4 −2
Original line number Diff line number Diff line
@@ -347,7 +347,8 @@ void queue_property_triggers(const char *name, const char *value) 


            if (!strncmp(name, test, name_length) &&

                    test[name_length] == '=' &&

                    !strcmp(test + name_length + 1, value)) {

                    (!strcmp(test + name_length + 1, value) ||

                     !strcmp(test + name_length + 1, "*"))) {

                action_add_queue_tail(act);

            }

        }
@@ -377,7 +378,8 @@ void queue_all_property_triggers() 


                    /* does the property exist, and match the trigger value? */

                    value = property_get(prop_name);

                    if (value && !strcmp(equals + 1, value)) {

                    if (value && (!strcmp(equals + 1, value) ||

                                  !strcmp(equals + 1, "*"))) {

                        action_add_queue_tail(act);

                    }

                }