/usr/include/mama/MamaTimeZone.h is in libmama-dev 2.2.2.1-11.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* OpenMAMA: The open middleware agnostic messaging API
* Copyright (C) 2011 NYSE Technologies, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef MamaTimeZoneHpp__
#define MamaTimeZoneHpp__
#include <mama/timezone.h>
namespace Wombat
{
/**
* A time zone representation to make conversion of timestamps to and
* from particular time zones more convenient.
*
* Note: The addition of instance monitoring to the MamaTimeZone
* implementation has resulted in the following limitation in its
* usage. Do not create short lived objects of this type on the
* method stack or delete long lived objects before program
* termination. Pointers to all instances are maintained in a global
* vector. At the moment there is no mechanism by which we can detect
* deleted objects or those which are popped off the method stack. An
* internal thread will always iterate over all objects ever
* created. A call to an object removed from the stack will result in
* nondeterminable behaviour. Pointers could be stored in a map
* against a unique object id; however, addition and removal from the
* map would have to be synchronized which would impact on
* performance.
*/
class MAMACPPExpDLL MamaTimeZone
{
public:
/** Return a reference to a MamaTimeZone corresponding to the local
* time zone. */
static const MamaTimeZone& local ();
/** Return a reference to a MamaTimeZone corresponding to UTC time zone. */
static const MamaTimeZone& utc ();
/** Return a reference to a MamaTimeZone corresponding to the US
* Eastern time zone. */
static const MamaTimeZone& usEastern ();
/** Constructor. */
MamaTimeZone ();
/** Constructor. NULL argument is equivalent to local timezone. */
MamaTimeZone (const char* tz);
/** Copy constructor. */
MamaTimeZone (const MamaTimeZone& copy);
/** Destructor. */
~MamaTimeZone ();
/** Assignment operator. */
MamaTimeZone& operator= (const MamaTimeZone& rhs);
/** Assign new timezones to this object. */
void set (const char* tz);
/** Clear this object. */
void clear ();
/** Return the time zone string. */
const char* tz () const;
/** Return the offset from UTC (in seconds). Can be positive or
* negative, depending upon the direction. */
mama_i32_t offset () const;
/** Check (recalculate) the UTC offset in case it has changed due
* to daylight savings adjustments. */
void check();
mamaTimeZone getCValue () { return myCimpl; }
const mamaTimeZone getCValue () const { return myCimpl; }
/**
* Use to set the interval of the thread updating each MamaTimeZone
* instance offset
*/
static void setScanningInterval (mama_f64_t seconds);
private:
mamaTimeZone myCimpl;
/** Constructor, given an existing C mamaTimeZone instance. */
MamaTimeZone (mamaTimeZone cimpl);
}; // MamaTimeZone
} // namespace Wombat
#endif // MamaTimeZoneHpp__
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