commit d7803db0e98809e5a17e78885d452479349f339f
author Wei Liu <luciferleo@google.com> Thu Aug 18 11:01:05 2016 -0700
committer Wei Liu <luciferleo@google.com> Thu Aug 18 16:14:54 2016 -0700
tree c2cc9e0d315e6c0206c15e627e571db546bee1df
parent c4178812a48827d077a2c1f4db872a9261b06f34

Hold a wakelock during dumpstate.

b/30832947

Change-Id: I9f6f6a9a9cef80aafea5eeb7769f4ac19baba3e5

cmds/dumpstate/Android.mk

diff --git a/cmds/dumpstate/Android.mk b/cmds/dumpstate/Android.mk
index 791a7c4..7a9f9ad 100644
--- a/cmds/dumpstate/Android.mk
+++ b/cmds/dumpstate/Android.mk
@@ -14,7 +14,7 @@
 
 LOCAL_MODULE := dumpstate
 
-LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux libbase
+LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux libbase libhardware_legacy
 # ZipArchive support, the order matters here to get all symbols.
 LOCAL_STATIC_LIBRARIES := libziparchive libz libmincrypt
 LOCAL_HAL_STATIC_LIBRARIES := libdumpstate

cmds/dumpstate/dumpstate.cpp

diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index aa8c9ae..ca00539 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -37,6 +37,7 @@
 #include <android-base/stringprintf.h>
 #include <android-base/file.h>
 #include <cutils/properties.h>
+#include <hardware_legacy/power.h>
 
 #include "private/android_filesystem_config.h"
 
@@ -82,6 +83,7 @@
 #define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4)
 #define NUM_TOMBSTONES  10
 #define WLUTIL "/vendor/xbin/wlutil"
+#define WAKE_LOCK_NAME "dumpstate_wakelock"
 
 typedef struct {
   char name[TOMBSTONE_MAX_LEN];
@@ -1198,6 +1200,10 @@
     return std::string(hash_buffer);
 }
 
+static void wake_lock_releaser() {
+    release_wake_lock(WAKE_LOCK_NAME);
+}
+
 int main(int argc, char *argv[]) {
     struct sigaction sigact;
     int do_add_date = 0;
@@ -1216,6 +1222,9 @@
 
     MYLOGI("begin\n");
 
+    acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_NAME);
+    atexit(wake_lock_releaser);
+
     /* gets the sequential id */
     char last_id[PROPERTY_VALUE_MAX];
     property_get("dumpstate.last_id", last_id, "0");