Introduction to appfreeze Events

Note:

Currently in the beta phase.

HiAppEvent provides interfaces for subscribing to system appfreeze events.

Subscribe to appfreeze Events (Cangjie)

The detailed description of the params attribute in appfreeze event information is as follows:

params Attribute:

Name	Type	Description
time	Int32	Event trigger time in milliseconds.
foreground	Bool	Whether the application is in the foreground. true indicates foreground; false indicates background.
bundle_version	String	Application version.
bundle_name	String	Application name.
process_name	String	Process name of the application.
pid	Int32	Process ID of the application.
uid	Int32	User ID of the application.
uuid	String	Fault ID.
exception	Exception	Exception information. For details, see the exception attribute.
hilog	Array<String>	Log information.
event_handler	Array<String>	Unprocessed messages in the main thread.
event_handler_size_3s	String	Number of tasks in the task stack at 3s for the THREAD_BLOCK_6S Event (effective only for this event).
event_handler_size_6s	String	Number of tasks in the task stack at 6s for the THREAD_BLOCK_6S Event (effective only for this event).
peer_binder	Array<String>	Binder call information.
threads	Array<Thread>	Full thread call stack. For details, see the thread attribute.
memory	Memory	Memory information. For details, see the memory attribute.
external_log12+	Array<String>	Path to the fault log file. To avoid exceeding the directory space limit (refer to log_over_limit), which may cause new log files to fail to be written, promptly delete log files after processing.
log_over_limit12+	Bool	Whether the total size of generated fault log files and existing log files exceeds the 5M limit. true indicates the limit is exceeded (log writing fails); false indicates the limit is not exceeded.

exception Attribute:

Name	Type	Description
name	String	Exception type.
message	String	Exception cause.

thread Attribute:

Name	Type	Description
thread_name	String	Thread name.
tid	Int32	Thread ID.
frames	Array<Frame>	Thread call stack. For details, see the frame attribute.

frame Attribute:

Name	Type	Description
symbol	String	Function name.
file	String	File name.
buildId	String	Unique file identifier.
pc	String	PC register address.
offset	Int32	Function offset.

memory Attribute:

Name	Type	Description
rss	Int32	Resident Set Size (actual memory usage by the process) in KB.
vss	Int32	Virtual Set Size (virtual memory requested by the process) in KB.
pss	Int32	Proportional Set Size (actual physical memory usage by the process) in KB.
sys_free_mem	Int32	Free memory size in KB.
sys_avail_mem	Int32	Available memory size in KB.
sys_total_mem	Int32	Total memory size in KB.