init: Add wait command and mount wait flag
Change-Id: I6b4c10f8f246095a7fb7342388ec4f6ff97d5733
diff --git a/init/builtins.c b/init/builtins.c
index 1c839cd..00eab83 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -277,6 +277,7 @@
char *options = NULL;
unsigned flags = 0;
int n, i;
+ int wait = 0;
for (n = 4; n < nargs; n++) {
for (i = 0; mount_flags[i].name; i++) {
@@ -286,9 +287,13 @@
}
}
- /* if our last argument isn't a flag, wolf it up as an option string */
- if (n + 1 == nargs && !mount_flags[i].name)
- options = args[n];
+ if (!mount_flags[i].name) {
+ if (!strcmp(args[n], "wait"))
+ wait = 1;
+ /* if our last argument isn't a flag, wolf it up as an option string */
+ else if (n + 1 == nargs)
+ options = args[n];
+ }
}
system = args[1];
@@ -303,6 +308,8 @@
sprintf(tmp, "/dev/block/mtdblock%d", n);
+ if (wait)
+ wait_for_file(tmp, COMMAND_RETRY_TIMEOUT);
if (mount(tmp, target, system, flags, options) < 0) {
return -1;
}
@@ -349,6 +356,8 @@
ERROR("out of loopback devices");
return -1;
} else {
+ if (wait)
+ wait_for_file(source, COMMAND_RETRY_TIMEOUT);
if (mount(source, target, system, flags, options) < 0) {
return -1;
}
@@ -574,3 +583,11 @@
decode_uid(args[4]), prefix);
return 0;
}
+
+int do_wait(int nargs, char **args)
+{
+ if (nargs == 2) {
+ return wait_for_file(args[1], COMMAND_RETRY_TIMEOUT);
+ }
+ return -1;
+}