platform_system_core/libstats/statsd_writer.h
Yao Chen 6301054b38 Add a function to allow statslog failure.
+ Record all types of failures which lead to log loss
+ Only record eventual failure after the retries to get a accurate log loss count.

Bug: 80538532
Test: manually tested

Change-Id: I23a55e62e140bf22ae5aa9e6c40539d51149cd66
Merged-In: I23a55e62e140bf22ae5aa9e6c40539d51149cd66
(cherry picked from commit ad3a40bf76)
2018-10-03 10:42:34 -07:00

45 lines
1.6 KiB
C

/*
* Copyright (C) 2018, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_STATS_LOG_STATS_WRITER_H
#define ANDROID_STATS_LOG_STATS_WRITER_H
#include <pthread.h>
#include <stdatomic.h>
#include <sys/socket.h>
/**
* Internal lock should not be exposed. This is bad design.
* TODO: rewrite it in c++ code and encapsulate the functionality in a
* StatsdWriter class.
*/
void statsd_writer_init_lock();
int statsd_writer_init_trylock();
void statsd_writer_init_unlock();
struct android_log_transport_write {
const char* name; /* human name to describe the transport */
atomic_int sock;
int (*available)(); /* Does not cause resources to be taken */
int (*open)(); /* can be called multiple times, reusing current resources */
void (*close)(); /* free up resources */
/* write log to transport, returns number of bytes propagated, or -errno */
int (*write)(struct timespec* ts, struct iovec* vec, size_t nr);
/* note one log drop */
void (*noteDrop)();
};
#endif // ANDROID_STATS_LOG_STATS_WRITER_H