Log windows that are being interacted with am: 7394eaa6

    export_header_lib_headers: [

        "libinputdispatcher_headers",

    ],

    logtags: ["EventLogTags.logtags"],

}

# The entries in this file map a sparse set of log tag numbers to tag names.

# This is installed on the device, in /system/etc, and parsed by logcat.

#

# Tag numbers are decimal integers, from 0 to 2^31.  (Let's leave the

# negative values alone for now.)

#

# Tag names are one or more ASCII letters and numbers or underscores, i.e.

# "[A-Z][a-z][0-9]_".  Do not include spaces or punctuation (the former

# impacts log readability, the latter makes regex searches more annoying).

#

# Tag numbers and names are separated by whitespace.  Blank lines and lines

# starting with '#' are ignored.

#

# Optionally, after the tag names can be put a description for the value(s)

# of the tag. Description are in the format

#    (<name>|data type[|data unit])

# Multiple values are separated by commas.

#

# The data type is a number from the following values:

# 1: int

# 2: long

# 3: string

# 4: list

#

# The data unit is a number taken from the following list:

# 1: Number of objects

# 2: Number of bytes

# 3: Number of milliseconds

# 4: Number of allocations

# 5: Id

# 6: Percent

# Default value for data of type int/long is 2 (bytes).

#

# See system/core/logcat/event.logtags for the master copy of the tags.

# 62000 - 62199 reserved for inputflinger

62000 input_interaction (windows|4)

62001 input_focus (window|3)

# NOTE - the range 1000000-2000000 is reserved for partners and others who

# want to define their own log tags without conflicting with the core platform.

 No newline at end of file

#include <binder/Binder.h>

#include <input/InputDevice.h>

#include <log/log.h>

#include <log/log_event_list.h>

#include <openssl/hmac.h>

#include <openssl/rand.h>

#include <powermanager/PowerManager.h>

// Number of recent events to keep for debugging purposes.

constexpr size_t RECENT_QUEUE_MAX_SIZE = 10;

// Event log tags. See EventLogTags.logtags for reference

constexpr int LOGTAG_INPUT_INTERACTION = 62000;

constexpr int LOGTAG_INPUT_FOCUS = 62001;

static inline nsecs_t now() {

    return systemTime(SYSTEM_TIME_MONOTONIC);

}

    target.inputChannel = channel;

    target.flags = InputTarget::FLAG_DISPATCH_AS_IS;

    entry->dispatchInProgress = true;

    std::string message = std::string("Focus ") + (entry->hasFocus ? "entering " : "leaving ") +

            channel->getName();

    android_log_event_list(LOGTAG_INPUT_FOCUS) << message << LOG_ID_EVENTS;

    dispatchEventLocked(currentTime, entry, {target});

}

    ALOGD("dispatchEventToCurrentInputTargets");

#endif

    updateInteractionTokensLocked(*eventEntry, inputTargets);

    ALOG_ASSERT(eventEntry->dispatchInProgress); // should already have been set to true

    pokeUserActivityLocked(*eventEntry);

    traceOutboundQueueLength(connection);

}

/**

 * This function is purely for debugging. It helps us understand where the user interaction

 * was taking place. For example, if user is touching launcher, we will see a log that user

 * started interacting with launcher. In that example, the event would go to the wallpaper as well.

 * We will see both launcher and wallpaper in that list.

 * Once the interaction with a particular set of connections starts, no new logs will be printed

 * until the set of interacted connections changes.

 *

 * The following items are skipped, to reduce the logspam:

 * ACTION_OUTSIDE: any windows that are receiving ACTION_OUTSIDE are not logged

 * ACTION_UP: any windows that receive ACTION_UP are not logged (for both keys and motions).

 * This includes situations like the soft BACK button key. When the user releases (lifts up the

 * finger) the back button, then navigation bar will inject KEYCODE_BACK with ACTION_UP.

 * Both of those ACTION_UP events would not be logged

 * Monitors (both gesture and global): any gesture monitors or global monitors receiving events

 * will not be logged. This is omitted to reduce the amount of data printed.

 * If you see <none>, it's likely that one of the gesture monitors pilfered the event, and therefore

 * gesture monitor is the only connection receiving the remainder of the gesture.

 */

void InputDispatcher::updateInteractionTokensLocked(const EventEntry& entry,

                                                    const std::vector<InputTarget>& targets) {

    // Skip ACTION_UP events, and all events other than keys and motions

    if (entry.type == EventEntry::Type::KEY) {

        const KeyEntry& keyEntry = static_cast<const KeyEntry&>(entry);

        if (keyEntry.action == AKEY_EVENT_ACTION_UP) {

            return;

        }

    } else if (entry.type == EventEntry::Type::MOTION) {

        const MotionEntry& motionEntry = static_cast<const MotionEntry&>(entry);

        if (motionEntry.action == AMOTION_EVENT_ACTION_UP) {

            return;

        }

    } else {

        return; // Not a key or a motion

    }

    std::unordered_set<sp<IBinder>, IBinderHash> newConnections;

    for (const InputTarget& target : targets) {

        if ((target.flags & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) ==

            InputTarget::FLAG_DISPATCH_AS_OUTSIDE) {

            continue; // Skip windows that receive ACTION_OUTSIDE

        }

        sp<IBinder> token = target.inputChannel->getConnectionToken();

        sp<Connection> connection = getConnectionLocked(token); // get connection

        if (connection->monitor) {

            continue; // We only need to keep track of the non-monitor connections.

        }

        newConnections.insert(std::move(token));

    }

    if (newConnections == mInteractionConnections) {

        return; // no change

    }

    mInteractionConnections = newConnections;

    std::string windowList;

    for (const sp<IBinder>& token : newConnections) {

        sp<Connection> connection = getConnectionLocked(token);

        windowList += connection->getWindowName() + ", ";

    }

    std::string message = "Interaction with windows: " + windowList;

    if (windowList.empty()) {

        message += "<none>";

    }

    android_log_event_list(LOGTAG_INPUT_INTERACTION) << message << LOG_ID_EVENTS;

}

void InputDispatcher::dispatchPointerDownOutsideFocus(uint32_t source, int32_t action,

                                                      const sp<IBinder>& newToken) {

    int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK;

#include <deque>

#include <optional>

#include <unordered_map>

#include <unordered_set>

#include <InputListener.h>

#include <InputReporterInterface.h>

    // Dispatcher state at time of last ANR.

    std::string mLastAnrState GUARDED_BY(mLock);

    // The connection token of the channel that was last interacted with.

    std::unordered_set<sp<IBinder>, IBinderHash> mInteractionConnections GUARDED_BY(mLock);

    void updateInteractionTokensLocked(const EventEntry& entry,

                                       const std::vector<InputTarget>& targets) REQUIRES(mLock);

    // Dispatch inbound events.

    bool dispatchConfigurationChangedLocked(nsecs_t currentTime, ConfigurationChangedEntry* entry)

            REQUIRES(mLock);