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-rw-r--r--core/java/android/os/Process.java56
-rw-r--r--core/java/com/android/internal/os/ZygoteConnection.java3
-rw-r--r--services/java/com/android/server/am/ActivityManagerService.java42
-rw-r--r--services/java/com/android/server/am/ActivityRecord.java10
-rw-r--r--services/java/com/android/server/am/ProcessRecord.java1
5 files changed, 63 insertions, 49 deletions
diff --git a/core/java/android/os/Process.java b/core/java/android/os/Process.java
index 269e50e..5b1f563 100644
--- a/core/java/android/os/Process.java
+++ b/core/java/android/os/Process.java
@@ -270,13 +270,12 @@ public class Process {
* @param targetSdkVersion The target SDK version for the app.
* @param zygoteArgs Additional arguments to supply to the zygote process.
*
- * @return int If > 0 the pid of the new process; if 0 the process is
- * being emulated by a thread
+ * @return An object that describes the result of the attempt to start the process.
* @throws RuntimeException on fatal start failure
*
* {@hide}
*/
- public static final int start(final String processClass,
+ public static final ProcessStartResult start(final String processClass,
final String niceName,
int uid, int gid, int[] gids,
int debugFlags, int targetSdkVersion,
@@ -376,14 +375,11 @@ public class Process {
* and returns the child's pid. Please note: the present implementation
* replaces newlines in the argument list with spaces.
* @param args argument list
- * @return PID of new child process
+ * @return An object that describes the result of the attempt to start the process.
* @throws ZygoteStartFailedEx if process start failed for any reason
*/
- private static int zygoteSendArgsAndGetPid(ArrayList<String> args)
+ private static ProcessStartResult zygoteSendArgsAndGetResult(ArrayList<String> args)
throws ZygoteStartFailedEx {
-
- int pid;
-
openZygoteSocketIfNeeded();
try {
@@ -394,7 +390,8 @@ public class Process {
* b) a number of newline-separated argument strings equal to count
*
* After the zygote process reads these it will write the pid of
- * the child or -1 on failure.
+ * the child or -1 on failure, followed by boolean to
+ * indicate whether a wrapper process was used.
*/
sZygoteWriter.write(Integer.toString(args.size()));
@@ -414,11 +411,13 @@ public class Process {
sZygoteWriter.flush();
// Should there be a timeout on this?
- pid = sZygoteInputStream.readInt();
-
- if (pid < 0) {
+ ProcessStartResult result = new ProcessStartResult();
+ result.pid = sZygoteInputStream.readInt();
+ if (result.pid < 0) {
throw new ZygoteStartFailedEx("fork() failed");
}
+ result.usingWrapper = sZygoteInputStream.readBoolean();
+ return result;
} catch (IOException ex) {
try {
if (sZygoteSocket != null) {
@@ -433,8 +432,6 @@ public class Process {
throw new ZygoteStartFailedEx(ex);
}
-
- return pid;
}
/**
@@ -449,18 +446,16 @@ public class Process {
* @param debugFlags Additional flags.
* @param targetSdkVersion The target SDK version for the app.
* @param extraArgs Additional arguments to supply to the zygote process.
- * @return PID
+ * @return An object that describes the result of the attempt to start the process.
* @throws ZygoteStartFailedEx if process start failed for any reason
*/
- private static int startViaZygote(final String processClass,
+ private static ProcessStartResult startViaZygote(final String processClass,
final String niceName,
final int uid, final int gid,
final int[] gids,
int debugFlags, int targetSdkVersion,
String[] extraArgs)
throws ZygoteStartFailedEx {
- int pid;
-
synchronized(Process.class) {
ArrayList<String> argsForZygote = new ArrayList<String>();
@@ -516,15 +511,9 @@ public class Process {
argsForZygote.add(arg);
}
}
-
- pid = zygoteSendArgsAndGetPid(argsForZygote);
- }
- if (pid <= 0) {
- throw new ZygoteStartFailedEx("zygote start failed:" + pid);
+ return zygoteSendArgsAndGetResult(argsForZygote);
}
-
- return pid;
}
/**
@@ -808,4 +797,21 @@ public class Process {
* @hide
*/
public static final native long getPss(int pid);
+
+ /**
+ * Specifies the outcome of having started a process.
+ * @hide
+ */
+ public static final class ProcessStartResult {
+ /**
+ * The PID of the newly started process.
+ * Always >= 0. (If the start failed, an exception will have been thrown instead.)
+ */
+ public int pid;
+
+ /**
+ * True if the process was started with a wrapper attached.
+ */
+ public boolean usingWrapper;
+ }
}
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index a3b7795..9af7e96 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -900,6 +900,7 @@ class ZygoteConnection {
}
}
+ boolean usingWrapper = false;
if (pipeFd != null && pid > 0) {
DataInputStream is = new DataInputStream(new FileInputStream(pipeFd));
int innerPid = -1;
@@ -924,6 +925,7 @@ class ZygoteConnection {
if (parentPid > 0) {
Log.i(TAG, "Wrapped process has pid " + innerPid);
pid = innerPid;
+ usingWrapper = true;
} else {
Log.w(TAG, "Wrapped process reported a pid that is not a child of "
+ "the process that we forked: childPid=" + pid
@@ -934,6 +936,7 @@ class ZygoteConnection {
try {
mSocketOutStream.writeInt(pid);
+ mSocketOutStream.writeBoolean(usingWrapper);
} catch (IOException ex) {
Log.e(TAG, "Error reading from command socket", ex);
return true;
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index d5e8730..8501163 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -208,6 +208,12 @@ public final class ActivityManagerService extends ActivityManagerNative
// before we decide it's never going to come up for real.
static final int PROC_START_TIMEOUT = 10*1000;
+ // How long we wait for a launched process to attach to the activity manager
+ // before we decide it's never going to come up for real, when the process was
+ // started with a wrapper for instrumentation (such as Valgrind) because it
+ // could take much longer than usual.
+ static final int PROC_START_TIMEOUT_WITH_WRAPPER = 300*1000;
+
// How long to wait after going idle before forcing apps to GC.
static final int GC_TIMEOUT = 5*1000;
@@ -1950,9 +1956,13 @@ public final class ActivityManagerService extends ActivityManagerNative
if ("1".equals(SystemProperties.get("debug.assert"))) {
debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
}
- int pid = Process.start("android.app.ActivityThread",
+
+ // Start the process. It will either succeed and return a result containing
+ // the PID of the new process, or else throw a RuntimeException.
+ Process.ProcessStartResult startResult = Process.start("android.app.ActivityThread",
app.processName, uid, uid, gids, debugFlags,
app.info.targetSdkVersion, null);
+
BatteryStatsImpl bs = app.batteryStats.getBatteryStats();
synchronized (bs) {
if (bs.isOnBattery()) {
@@ -1960,12 +1970,12 @@ public final class ActivityManagerService extends ActivityManagerNative
}
}
- EventLog.writeEvent(EventLogTags.AM_PROC_START, pid, uid,
+ EventLog.writeEvent(EventLogTags.AM_PROC_START, startResult.pid, uid,
app.processName, hostingType,
hostingNameStr != null ? hostingNameStr : "");
if (app.persistent) {
- Watchdog.getInstance().processStarted(app.processName, pid);
+ Watchdog.getInstance().processStarted(app.processName, startResult.pid);
}
StringBuilder buf = mStringBuilder;
@@ -1979,7 +1989,7 @@ public final class ActivityManagerService extends ActivityManagerNative
buf.append(hostingNameStr);
}
buf.append(": pid=");
- buf.append(pid);
+ buf.append(startResult.pid);
buf.append(" uid=");
buf.append(uid);
buf.append(" gids={");
@@ -1992,21 +2002,15 @@ public final class ActivityManagerService extends ActivityManagerNative
}
buf.append("}");
Slog.i(TAG, buf.toString());
- if (pid > 0) {
- app.pid = pid;
- app.removed = false;
- synchronized (mPidsSelfLocked) {
- this.mPidsSelfLocked.put(pid, app);
- Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
- msg.obj = app;
- mHandler.sendMessageDelayed(msg, PROC_START_TIMEOUT);
- }
- } else {
- app.pid = 0;
- RuntimeException e = new RuntimeException(
- "Failure starting process " + app.processName
- + ": returned pid=" + pid);
- Slog.e(TAG, e.getMessage(), e);
+ app.pid = startResult.pid;
+ app.usingWrapper = startResult.usingWrapper;
+ app.removed = false;
+ synchronized (mPidsSelfLocked) {
+ this.mPidsSelfLocked.put(startResult.pid, app);
+ Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
+ msg.obj = app;
+ mHandler.sendMessageDelayed(msg, startResult.usingWrapper
+ ? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
}
} catch (RuntimeException e) {
// XXX do better error recovery.
diff --git a/services/java/com/android/server/am/ActivityRecord.java b/services/java/com/android/server/am/ActivityRecord.java
index 090e26b..73ffafb 100644
--- a/services/java/com/android/server/am/ActivityRecord.java
+++ b/services/java/com/android/server/am/ActivityRecord.java
@@ -658,12 +658,12 @@ final class ActivityRecord extends IApplicationToken.Stub {
public long getKeyDispatchingTimeout() {
synchronized(service) {
ActivityRecord r = getWaitingHistoryRecordLocked();
- if (r == null || r.app == null
- || r.app.instrumentationClass == null) {
- return ActivityManagerService.KEY_DISPATCHING_TIMEOUT;
+ if (r != null && r.app != null
+ && (r.app.instrumentationClass != null || r.app.usingWrapper)) {
+ return ActivityManagerService.INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT;
}
-
- return ActivityManagerService.INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT;
+
+ return ActivityManagerService.KEY_DISPATCHING_TIMEOUT;
}
}
diff --git a/services/java/com/android/server/am/ProcessRecord.java b/services/java/com/android/server/am/ProcessRecord.java
index 3968f66..da83e7d 100644
--- a/services/java/com/android/server/am/ProcessRecord.java
+++ b/services/java/com/android/server/am/ProcessRecord.java
@@ -78,6 +78,7 @@ class ProcessRecord {
IInstrumentationWatcher instrumentationWatcher; // who is waiting
Bundle instrumentationArguments;// as given to us
ComponentName instrumentationResultClass;// copy of instrumentationClass
+ boolean usingWrapper; // Set to true when process was launched with a wrapper attached
BroadcastRecord curReceiver;// receiver currently running in the app
long lastWakeTime; // How long proc held wake lock at last check
long lastCpuTime; // How long proc has run CPU at last check