libspopc/libspopc.c

/* this is libspopc.c file, part of the libspopc library sources
 * copyright © 2002- Benoit Rouits <brouits@free.fr>
 * released under the terms of the GNU Lesser General Public Licence.
 *
 * libspopc offers simple API for a pop3 client.
 * See RFC 1725 for pop3 specifications.
 * more information on http://herewe.servebeer.com/libspopc/
 *
 *  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
 */

#ifdef _REENTRANT

#include "libspopc.h"
#include "mutex.h"

static int LIBSPOPC_UP = 0;

/* all mutexes are defined here */
mutex GETHOSTBYNAME;

/* ALL THESE FUNCTIONS MUST BE CALLED ONCE AT A TIME */

/* initialize libspopc, mainly for thread safety */
int libspopc_init(void)
{
        if (!LIBSPOPC_UP)
        {
                /* initialize all mutexes */
                mutex_init(&GETHOSTBYNAME);
        }
        LIBSPOPC_UP = 1;
        return 0; /* FIXME */
}

/* clean libspopc, thus re-initable by libspopc_init() */
int libspopc_clean(void)
{
        if(LIBSPOPC_UP)
        {
                /* clean all mutexes */
                mutex_clean(&GETHOSTBYNAME);
        }
        LIBSPOPC_UP = 0;
        return 0; /* FIXME */
}

#else /* non-reentrant */

int libspopc_init(void)
{
        return 0;
}

int libspopc_clean(void)
{
        return 0;
}

#endif
1	ben	1	/* this is libspopc.c file, part of the libspopc library sources
2			* copyright © 2002- Benoit Rouits <brouits@free.fr>
3			* released under the terms of the GNU Lesser General Public Licence.
4			*
5			* libspopc offers simple API for a pop3 client.
6			* See RFC 1725 for pop3 specifications.
7	ben	2	* more information on http://herewe.servebeer.com/libspopc/
8	ben	1	*
9			* This library is free software; you can redistribute it and/or
10			* modify it under the terms of the GNU Lesser General Public
11			* License as published by the Free Software Foundation; either
12			* version 2.1 of the License, or (at your option) any later version.
13			*
14			* This library is distributed in the hope that it will be useful,
15			* but WITHOUT ANY WARRANTY; without even the implied warranty of
16			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17			* Lesser General Public License for more details.
18			*
19			* You should have received a copy of the GNU Lesser General Public
20			* License along with this library; if not, write to the Free Software
21			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22			*/
23
24			#ifdef _REENTRANT
25
26			#include "libspopc.h"
27			#include "mutex.h"
28
29			static int LIBSPOPC_UP = 0;
30
31			/* all mutexes are defined here */
32			mutex GETHOSTBYNAME;
33
34			/* ALL THESE FUNCTIONS MUST BE CALLED ONCE AT A TIME */
35
36			/* initialize libspopc, mainly for thread safety */
37			int libspopc_init(void)
38			{
39			if (!LIBSPOPC_UP)
40			{
41			/* initialize all mutexes */
42			mutex_init(&GETHOSTBYNAME);
43			}
44			LIBSPOPC_UP = 1;
45			return 0; /* FIXME */
46			}
47
48			/* clean libspopc, thus re-initable by libspopc_init() */
49			int libspopc_clean(void)
50			{
51			if(LIBSPOPC_UP)
52			{
53			/* clean all mutexes */
54			mutex_clean(&GETHOSTBYNAME);
55			}
56			LIBSPOPC_UP = 0;
57			return 0; /* FIXME */
58			}
59
60			#else /* non-reentrant */
61
62			int libspopc_init(void)
63			{
64			return 0;
65			}
66
67			int libspopc_clean(void)
68			{
69			return 0;
70			}
71
72			#endif