7596250722
Test: logcat -c; fdtrack_test; logcat -d Change-Id: Ib6f75a7c8bbc4d6efa0708dcbbfe4ad3c0641022
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2019 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
// Types of an android_fdtrack_event.
|
|
enum android_fdtrack_event_type {
|
|
// File descriptor creation: create is the active member of android_fdtrack_event::data.
|
|
ANDROID_FDTRACK_EVENT_TYPE_CREATE,
|
|
|
|
// File descriptor closed.
|
|
ANDROID_FDTRACK_EVENT_TYPE_CLOSE,
|
|
};
|
|
|
|
struct android_fdtrack_event {
|
|
// File descriptor for which this event occurred.
|
|
int fd;
|
|
|
|
// Type of event: this is one of the enumerators of android_fdtrack_event_type.
|
|
uint8_t type;
|
|
|
|
// Data for the event.
|
|
union {
|
|
struct {
|
|
const char* function_name;
|
|
} create;
|
|
} data;
|
|
};
|
|
|
|
// Callback invoked upon file descriptor creation/closure.
|
|
typedef void (*android_fdtrack_hook_t)(struct android_fdtrack_event*);
|
|
|
|
// Register a hook which is called to track fd lifecycle events.
|
|
bool android_fdtrack_compare_exchange_hook(android_fdtrack_hook_t* expected, android_fdtrack_hook_t value) __INTRODUCED_IN(30);
|
|
|
|
// Enable/disable fdtrack *on the current thread*.
|
|
// This is primarily useful when performing operations which you don't want to track
|
|
// (e.g. when emitting already-recorded information).
|
|
bool android_fdtrack_get_enabled() __INTRODUCED_IN(30);
|
|
bool android_fdtrack_set_enabled(bool new_value) __INTRODUCED_IN(30);
|
|
|
|
__END_DECLS
|