commit ffa52e9c6f8b37e8a9430c66ef117a07c43c797e
author Mark Salyzyn <salyzyn@google.com> Thu May 14 09:20:30 2020 -0700
committer Mark Salyzyn <salyzyn@google.com> Fri May 15 01:18:24 2020 +0000
tree a9625cbf25f66cfb6331982535be4d5bd2369b14
parent fa8bf5be4e55e0d701222b28c5fa52b07149131d

init: support wait timeout with more precision

A one second timeout is so coarse and can affect boot time when
the possibility that the file does not exist.  Switch to accepting
a floating point number for seconds for the wait for file command.

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 151950334
Test: wait_for_file sleep 0.05 reports an appropriate delay
Change-Id: I8d8ed386519ab54270b05ce91663d0add30f12e7

init/check_builtins.cpp

diff --git a/init/check_builtins.cpp b/init/check_builtins.cpp
index d62ecb0..d1a84f3 100644
--- a/init/check_builtins.cpp
+++ b/init/check_builtins.cpp
@@ -25,6 +25,7 @@
 #include <sys/time.h>
 
 #include <android-base/logging.h>
+#include <android-base/parsedouble.h>
 #include <android-base/parseint.h>
 #include <android-base/strings.h>
 
@@ -205,8 +206,8 @@
 
 Result<void> check_wait(const BuiltinArguments& args) {
     if (args.size() == 3 && !args[2].empty()) {
-        int timeout_int;
-        if (!android::base::ParseInt(args[2], &timeout_int)) {
+        double timeout_double;
+        if (!android::base::ParseDouble(args[2], &timeout_double, 0)) {
             return Error() << "failed to parse timeout";
         }
     }