servicemanager started property
If something starts before servicemanager does,
intelligently wait for servicemanager to start rather
than sleeping for 1s.
Bug: 239382640
Test: boot
Change-Id: Ic3df299d8b37c2caeeac4ae90402e7f5be1e7ecc
diff --git a/cmds/servicemanager/main.cpp b/cmds/servicemanager/main.cpp
index 1d458b7..a831d1b 100644
--- a/cmds/servicemanager/main.cpp
+++ b/cmds/servicemanager/main.cpp
@@ -15,6 +15,7 @@
*/
#include <android-base/logging.h>
+#include <android-base/properties.h>
#include <binder/IPCThreadState.h>
#include <binder/ProcessState.h>
#include <binder/Status.h>
@@ -26,15 +27,14 @@
#include "ServiceManager.h"
using ::android::Access;
-using ::android::sp;
+using ::android::IPCThreadState;
using ::android::Looper;
using ::android::LooperCallback;
using ::android::ProcessState;
-using ::android::IPCThreadState;
-using ::android::ProcessState;
using ::android::ServiceManager;
-using ::android::os::IServiceManager;
using ::android::sp;
+using ::android::base::SetProperty;
+using ::android::os::IServiceManager;
class BinderCallback : public LooperCallback {
public:
@@ -140,6 +140,12 @@
BinderCallback::setupTo(looper);
ClientCallbackCallback::setupTo(looper, manager);
+#ifndef VENDORSERVICEMANAGER
+ if (!SetProperty("servicemanager.ready", "true")) {
+ LOG(ERROR) << "Failed to set servicemanager ready property";
+ }
+#endif
+
while(true) {
looper->pollAll(-1);
}
diff --git a/cmds/servicemanager/servicemanager.microdroid.rc b/cmds/servicemanager/servicemanager.microdroid.rc
index e01f132..c516043 100644
--- a/cmds/servicemanager/servicemanager.microdroid.rc
+++ b/cmds/servicemanager/servicemanager.microdroid.rc
@@ -3,6 +3,7 @@
user system
group system readproc
critical
+ onrestart setprop servicemanager.ready false
onrestart restart apexd
task_profiles ServiceCapacityLow
shutdown critical
diff --git a/cmds/servicemanager/servicemanager.rc b/cmds/servicemanager/servicemanager.rc
index e5d689f..6b35265 100644
--- a/cmds/servicemanager/servicemanager.rc
+++ b/cmds/servicemanager/servicemanager.rc
@@ -3,6 +3,7 @@
user system
group system readproc
critical
+ onrestart setprop servicemanager.ready false
onrestart restart apexd
onrestart restart audioserver
onrestart restart gatekeeperd
diff --git a/cmds/servicemanager/servicemanager.recovery.rc b/cmds/servicemanager/servicemanager.recovery.rc
index 067faf9..b927c01 100644
--- a/cmds/servicemanager/servicemanager.recovery.rc
+++ b/cmds/servicemanager/servicemanager.recovery.rc
@@ -1,4 +1,5 @@
service servicemanager /system/bin/servicemanager
disabled
group system readproc
+ onrestart setprop servicemanager.ready false
seclabel u:r:servicemanager:s0
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index fd47783..c0a8d74 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -21,6 +21,7 @@
#include <inttypes.h>
#include <unistd.h>
+#include <android-base/properties.h>
#include <android/os/BnServiceCallback.h>
#include <android/os/IServiceManager.h>
#include <binder/IPCThreadState.h>
@@ -140,6 +141,16 @@
sp<IServiceManager> defaultServiceManager()
{
std::call_once(gSmOnce, []() {
+#if defined(__BIONIC__) && !defined(__ANDROID_VNDK__)
+ /* wait for service manager */ {
+ using std::literals::chrono_literals::operator""s;
+ using android::base::WaitForProperty;
+ while (!WaitForProperty("servicemanager.ready", "true", 1s)) {
+ ALOGE("Waited for servicemanager.ready for a second, waiting another...");
+ }
+ }
+#endif
+
sp<AidlServiceManager> sm = nullptr;
while (sm == nullptr) {
sm = interface_cast<AidlServiceManager>(ProcessState::self()->getContextObject(nullptr));