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MCOL-892

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This commit is contained in:
david hill
2017-08-30 14:04:29 -05:00
parent ce6317995c
commit b492371534
2 changed files with 85 additions and 49 deletions
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69
oam/oamcpp/liboamcpp.cpp
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@ -2523,6 +2523,9 @@ namespace oam
string Section = "AlarmConfig";
int returnValue;
struct flock fl;
int fd;
// validate Alarm ID
if( alarmid > MAX_ALARM_ID )
@ -2543,41 +2546,55 @@ namespace oam
exceptionControl("setAlarmConfig", API_READONLY_PARAMETER);
string fileName = AlarmConfigFile;
int fd = open(fileName.c_str(), O_RDWR|O_CREAT, 0644);
// Aquire an exclusive lock
if (flock(fd,LOCK_EX) == -1) {
throw runtime_error ("Lock file error: " + fileName);
}
memset(&fl, 0, sizeof(fl));
fl.l_type = F_RDLCK; // read lock
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0; //lock whole file
// write parameter to disk
Config* alaConfig = Config::makeConfig(AlarmConfigFile.c_str());
alaConfig->setConfig(Section, name, value);
try
{
alaConfig->write();
}
catch(...)
{
// Release lock
if (flock(fd,LOCK_UN)==-1)
// open config file
if ((fd = open(fileName.c_str(), O_RDWR)) >= 0)
{ // lock file
if (fcntl(fd, F_SETLKW, &fl) != 0)
{
throw runtime_error ("Release lock file error: " + fileName);
ostringstream oss;
oss << "Oam::setAlarmConfig: error locking file " <<
fileName <<
": " <<
strerror(errno) <<
", proceding anyway.";
cerr << oss.str() << endl;
}
// write parameter to disk
exceptionControl("setAlarmConfig", API_FAILURE);
}
Config* alaConfig = Config::makeConfig(AlarmConfigFile.c_str());
alaConfig->setConfig(Section, name, value);
try
{
alaConfig->write();
}
catch(...)
{}
// Release lock
if (flock(fd,LOCK_UN)==-1)
fl.l_type = F_UNLCK; //unlock
fcntl(fd, F_SETLK, &fl);
close(fd);
}
else
{
throw runtime_error ("Release lock file error: " + fileName);
ostringstream oss;
oss << "Oam::setAlarmConfig: error opening file " <<
fileName <<
": " <<
strerror(errno);
throw runtime_error(oss.str());
}
close(fd);
return;
}
/********************************************************************