Merge "init: handle sys.powerctl immediately" am: 14ed55bae8 am: e6bfb53196 am: 8972f887d2
am: 1f49801ab1
Change-Id: I6af3f4e1850593f13f27a3fd48f1310e0c3e369c
diff --git a/init/README.md b/init/README.md
index fc50730..8cb1e52 100644
--- a/init/README.md
+++ b/init/README.md
@@ -370,10 +370,6 @@
_options_ include "barrier=1", "noauto\_da\_alloc", "discard", ... as
a comma separated string, eg: barrier=1,noauto\_da\_alloc
-`powerctl`
-> Internal implementation detail used to respond to changes to the
- "sys.powerctl" system property, used to implement rebooting.
-
`restart <service>`
> Stops and restarts a running service, does nothing if the service is currently
restarting, otherwise, it just starts the service.
diff --git a/init/builtins.cpp b/init/builtins.cpp
index 2327cdf..43eb420 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -598,58 +598,6 @@
return 0;
}
-static int do_powerctl(const std::vector<std::string>& args) {
- const std::string& command = args[1];
- unsigned int cmd = 0;
- std::vector<std::string> cmd_params = android::base::Split(command, ",");
- std::string reason_string = cmd_params[0];
- std::string reboot_target = "";
- bool runFsck = false;
- bool commandInvalid = false;
-
- if (cmd_params.size() > 3) {
- commandInvalid = true;
- } else if (cmd_params[0] == "shutdown") {
- cmd = ANDROID_RB_POWEROFF;
- if (cmd_params.size() == 2 && cmd_params[1] == "userrequested") {
- // The shutdown reason is PowerManager.SHUTDOWN_USER_REQUESTED.
- // Run fsck once the file system is remounted in read-only mode.
- runFsck = true;
- reason_string = cmd_params[1];
- }
- } else if (cmd_params[0] == "reboot") {
- cmd = ANDROID_RB_RESTART2;
- if (cmd_params.size() >= 2) {
- reboot_target = cmd_params[1];
- // When rebooting to the bootloader notify the bootloader writing
- // also the BCB.
- if (reboot_target == "bootloader") {
- std::string err;
- if (!write_reboot_bootloader(&err)) {
- LOG(ERROR) << "reboot-bootloader: Error writing "
- "bootloader_message: "
- << err;
- }
- }
- // If there is an additional bootloader parameter, pass it along
- if (cmd_params.size() == 3) {
- reboot_target += "," + cmd_params[2];
- }
- }
- } else if (command == "thermal-shutdown") { // no additional parameter allowed
- cmd = ANDROID_RB_THERMOFF;
- } else {
- commandInvalid = true;
- }
- if (commandInvalid) {
- LOG(ERROR) << "powerctl: unrecognized command '" << command << "'";
- return -EINVAL;
- }
-
- DoReboot(cmd, reason_string, reboot_target, runFsck);
- return 0;
-}
-
static int do_trigger(const std::vector<std::string>& args) {
ActionManager::GetInstance().QueueEventTrigger(args[1]);
return 0;
@@ -919,7 +867,6 @@
{"mount_all", {1, kMax, do_mount_all}},
{"mount", {3, kMax, do_mount}},
{"umount", {1, 1, do_umount}},
- {"powerctl", {1, 1, do_powerctl}},
{"restart", {1, 1, do_restart}},
{"restorecon", {1, kMax, do_restorecon}},
{"restorecon_recursive", {1, kMax, do_restorecon_recursive}},
diff --git a/init/init.cpp b/init/init.cpp
index dedca29..a857377 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -67,6 +67,7 @@
#include "keychords.h"
#include "log.h"
#include "property_service.h"
+#include "reboot.h"
#include "service.h"
#include "signal_handler.h"
#include "ueventd.h"
@@ -153,8 +154,13 @@
return true;
}
-void property_changed(const char *name, const char *value)
-{
+void property_changed(const std::string& name, const std::string& value) {
+ // If the property is sys.powerctl, we bypass the event queue and immediately handle it.
+ // This is to ensure that init will always and immediately shutdown/reboot, regardless of
+ // if there are other pending events to process or if init is waiting on an exec service or
+ // waiting on a property.
+ if (name == "sys.powerctl") HandlePowerctlMessage(value);
+
if (property_triggers_enabled)
ActionManager::GetInstance().QueuePropertyTrigger(name, value);
if (waiting_for_prop) {
diff --git a/init/init.h b/init/init.h
index fe850ef..1da3350 100644
--- a/init/init.h
+++ b/init/init.h
@@ -26,7 +26,7 @@
void handle_control_message(const std::string& msg, const std::string& arg);
-void property_changed(const char *name, const char *value);
+void property_changed(const std::string& name, const std::string& value);
void register_epoll_handler(int fd, void (*fn)());
diff --git a/init/property_service.cpp b/init/property_service.cpp
index 2aa89ff..20a2aa1 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -205,7 +205,7 @@
if (persistent_properties_loaded && android::base::StartsWith(name, "persist.")) {
write_persistent_property(name.c_str(), value.c_str());
}
- property_changed(name.c_str(), value.c_str());
+ property_changed(name, value);
return PROP_SUCCESS;
}
diff --git a/init/reboot.cpp b/init/reboot.cpp
index d9ebd91..4d65437 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -425,3 +425,54 @@
RebootSystem(cmd, rebootTarget);
abort();
}
+
+bool HandlePowerctlMessage(const std::string& command) {
+ unsigned int cmd = 0;
+ std::vector<std::string> cmd_params = android::base::Split(command, ",");
+ std::string reason_string = cmd_params[0];
+ std::string reboot_target = "";
+ bool run_fsck = false;
+ bool command_invalid = false;
+
+ if (cmd_params.size() > 3) {
+ command_invalid = true;
+ } else if (cmd_params[0] == "shutdown") {
+ cmd = ANDROID_RB_POWEROFF;
+ if (cmd_params.size() == 2 && cmd_params[1] == "userrequested") {
+ // The shutdown reason is PowerManager.SHUTDOWN_USER_REQUESTED.
+ // Run fsck once the file system is remounted in read-only mode.
+ run_fsck = true;
+ reason_string = cmd_params[1];
+ }
+ } else if (cmd_params[0] == "reboot") {
+ cmd = ANDROID_RB_RESTART2;
+ if (cmd_params.size() >= 2) {
+ reboot_target = cmd_params[1];
+ // When rebooting to the bootloader notify the bootloader writing
+ // also the BCB.
+ if (reboot_target == "bootloader") {
+ std::string err;
+ if (!write_reboot_bootloader(&err)) {
+ LOG(ERROR) << "reboot-bootloader: Error writing "
+ "bootloader_message: "
+ << err;
+ }
+ }
+ // If there is an additional bootloader parameter, pass it along
+ if (cmd_params.size() == 3) {
+ reboot_target += "," + cmd_params[2];
+ }
+ }
+ } else if (command == "thermal-shutdown") { // no additional parameter allowed
+ cmd = ANDROID_RB_THERMOFF;
+ } else {
+ command_invalid = true;
+ }
+ if (command_invalid) {
+ LOG(ERROR) << "powerctl: unrecognized command '" << command << "'";
+ return false;
+ }
+
+ DoReboot(cmd, reason_string, reboot_target, run_fsck);
+ return true;
+}
diff --git a/init/reboot.h b/init/reboot.h
index 6432fa5..b304b3c 100644
--- a/init/reboot.h
+++ b/init/reboot.h
@@ -29,4 +29,7 @@
void DoReboot(unsigned int cmd, const std::string& reason, const std::string& rebootTarget,
bool runFsck) __attribute__((__noreturn__));
+// Parses and handles a setprop sys.powerctl message.
+bool HandlePowerctlMessage(const std::string& command);
+
#endif
diff --git a/rootdir/init.rc b/rootdir/init.rc
index f6b7039..0517884 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -641,9 +641,6 @@
class_reset late_start
class_reset main
-on property:sys.powerctl=*
- powerctl ${sys.powerctl}
-
on property:sys.boot_completed=1
bootchart stop