kernel_module_loader: Set a prop after completing
* we can use this as a trigger in init rc, for any task
that depend on kernel modules being loaded
Change-Id: I7623edc0b6dc799e911a087881f76e9642e005ee
diff --git a/twrp-functions.cpp b/twrp-functions.cpp
index 350d840..15d4bdd 100755
--- a/twrp-functions.cpp
+++ b/twrp-functions.cpp
@@ -38,8 +38,10 @@
#include <cctype>
#include <algorithm>
#include <selinux/label.h>
+#include <thread>
#include <android-base/strings.h>
+#include <android-base/chrono_utils.h>
#include "twrp-functions.hpp"
#include "twcommon.h"
@@ -407,6 +409,30 @@
((start.tv_sec * 1000) + start.tv_nsec/1000000);
}
+bool TWFunc::Wait_For_File(const string& path, std::chrono::nanoseconds timeout) {
+ android::base::Timer t;
+ while (t.duration() < timeout) {
+ struct stat sb;
+ if (stat(path.c_str(), &sb) != -1) {
+ return true;
+ }
+ std::this_thread::sleep_for(10ms);
+ }
+ return false;
+}
+
+bool TWFunc::Wait_For_Battery(std::chrono::nanoseconds timeout) {
+ std::string battery_path;
+#ifdef TW_CUSTOM_BATTERY_PATH
+ battery_path = EXPAND(TW_CUSTOM_BATTERY_PATH);
+#else
+ battery_path = "/sys/class/power_supply/battery";
+#endif
+ if (!battery_path.empty()) return TWFunc::Wait_For_File(battery_path, timeout);
+
+ return false;
+}
+
#ifndef BUILD_TWRPTAR_MAIN
// Returns "/path" from a full /path/to/file.name