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
64 lines
1.9 KiB
C++
64 lines
1.9 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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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <log/logger.h>
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#include "LogBufferElement.h"
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#include "LogReader.h"
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const struct timespec LogBufferElement::FLUSH_ERROR = { 0, 0 };
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LogBufferElement::LogBufferElement(log_id_t log_id, struct timespec realtime, uid_t uid, pid_t pid, const char *msg, unsigned short len)
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: mLogId(log_id)
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, mUid(uid)
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, mPid(pid)
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, mMsgLen(len)
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, mMonotonicTime(CLOCK_MONOTONIC)
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, mRealTime(realtime) {
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mMsg = new char[len];
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memcpy(mMsg, msg, len);
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}
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LogBufferElement::~LogBufferElement() {
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delete [] mMsg;
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}
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struct timespec LogBufferElement::flushTo(SocketClient *reader) {
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struct logger_entry_v3 entry;
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memset(&entry, 0, sizeof(struct logger_entry_v3));
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entry.hdr_size = sizeof(struct logger_entry_v3);
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entry.len = mMsgLen;
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entry.lid = mLogId;
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entry.pid = mPid;
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entry.sec = mRealTime.tv_sec;
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entry.nsec = mRealTime.tv_nsec;
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struct iovec iovec[2];
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iovec[0].iov_base = &entry;
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iovec[0].iov_len = sizeof(struct logger_entry_v3);
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iovec[1].iov_base = mMsg;
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iovec[1].iov_len = mMsgLen;
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if (reader->sendDatav(iovec, 2)) {
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return FLUSH_ERROR;
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}
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return mMonotonicTime;
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}
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