0175b0747a
* Create a new userspace log daemon for handling logging messages.
Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>
* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
(cherry picked from commit 3e76e0a497)
Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* Copyright (C) 2012-2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LOGD_LOG_BUFFER_H__
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#define _LOGD_LOG_BUFFER_H__
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#include <sys/types.h>
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#include <log/log.h>
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#include <sysutils/SocketClient.h>
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#include <utils/List.h>
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#include "LogBufferElement.h"
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#include "LogTimes.h"
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typedef android::List<LogBufferElement *> LogBufferElementCollection;
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class LogBuffer {
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LogBufferElementCollection mLogElements;
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pthread_mutex_t mLogElementsLock;
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unsigned long mSizes[LOG_ID_MAX];
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unsigned long mElements[LOG_ID_MAX];
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public:
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LastLogTimes &mTimes;
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LogBuffer(LastLogTimes *times);
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void log(log_id_t log_id, struct timespec realtime,
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uid_t uid, pid_t pid, const char *msg, unsigned short len);
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struct timespec flushTo(SocketClient *writer, const struct timespec start,
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bool privileged,
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bool (*filter)(const LogBufferElement *element, void *arg) = NULL,
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void *arg = NULL);
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void clear(log_id_t id);
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unsigned long getSize(log_id_t id);
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unsigned long getSizeUsed(log_id_t id);
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private:
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void maybePrune(log_id_t id);
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void prune(log_id_t id, unsigned long pruneRows);
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};
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#endif
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