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/*
* Copyright (C) 2012-2013 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.
*/
#include <poll.h>
#include <sys/socket.h>
#include <cutils/sockets.h>
#include "LogReader.h"
#include "FlushCommand.h"
LogReader::LogReader(LogBuffer *logbuf)
: SocketListener("logdr", true)
, mLogbuf(*logbuf)
{ }
// When we are notified a new log entry is available, inform
// all of our listening sockets.
void LogReader::notifyNewLog() {
FlushCommand command(*this);
runOnEachSocket(&command);
}
bool LogReader::onDataAvailable(SocketClient *cli) {
char buffer[255];
int len = read(cli->getSocket(), buffer, sizeof(buffer) - 1);
if (len <= 0) {
doSocketDelete(cli);
return false;
}
buffer[len] = '\0';
unsigned long tail = 0;
static const char _tail[] = " tail=";
char *cp = strstr(buffer, _tail);
if (cp) {
tail = atol(cp + sizeof(_tail) - 1);
}
unsigned int logMask = -1;
static const char _logIds[] = " lids=";
cp = strstr(buffer, _logIds);
if (cp) {
logMask = 0;
cp += sizeof(_logIds) - 1;
while (*cp && *cp != '\0') {
int val = 0;
while (('0' <= *cp) && (*cp <= '9')) {
val *= 10;
val += *cp - '0';
++cp;
}
logMask |= 1 << val;
if (*cp != ',') {
break;
}
++cp;
}
}
pid_t pid = 0;
static const char _pid[] = " pid=";
cp = strstr(buffer, _pid);
if (cp) {
pid = atol(cp + sizeof(_pid) - 1);
}
bool nonBlock = false;
if (strncmp(buffer, "dumpAndClose", 12) == 0) {
nonBlock = true;
}
FlushCommand command(*this, nonBlock, tail, logMask, pid);
command.runSocketCommand(cli);
return true;
}
void LogReader::doSocketDelete(SocketClient *cli) {
LastLogTimes × = mLogbuf.mTimes;
LogTimeEntry::lock();
LastLogTimes::iterator it = times.begin();
while(it != times.end()) {
LogTimeEntry *entry = (*it);
if (entry->mClient == cli) {
times.erase(it);
entry->release_Locked();
break;
}
it++;
}
LogTimeEntry::unlock();
}
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