/usr/include/osip2/osip_fifo.h is in libosip2-dev 3.3.0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | /*
The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Aymeric MOIZARD jack@atosc.org
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _FIFO_H_
#define _FIFO_H_
#ifdef OSIP_MT
#include <osip2/osip_mt.h>
#endif
#include <osipparser2/osip_list.h>
/**
* @file osip_fifo.h
* @brief oSIP fifo Routines
*
* This is a very simple implementation of a fifo.
* <BR>There is not much to say about it...
*/
/**
* @defgroup oSIP_FIFO oSIP fifo Handling
* @ingroup osip2_port
* @{
*/
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef DOXYGEN
#define MAX_LEN 1000
typedef enum
{ osip_ok, osip_full, osip_empty }
osip_fifo_state;
#endif
/**
* Structure for referencing a fifo.
* @var osip_fifo_t
*/
typedef struct osip_fifo osip_fifo_t;
/**
* Structure for referencing a fifo.
* @struct osip_fifo
*/
struct osip_fifo
{
#ifdef OSIP_MT
struct osip_mutex *qislocked; /**@internal */
struct osip_sem *qisempty; /**@internal */
#endif
osip_list_t queue; /**< list of nodes containing elements */
int nb_elt; /**< nb of elements */
osip_fifo_state state; /**@internal state of the fifo */
};
/**
* Initialise a osip_fifo_t element.
* NOTE: this element MUST be previously allocated with
* osip_malloc(). The osip_free() call on the fifo is
* still automatically done by osip_fifo_free(). This
* also means you can't use a static osip_fifo_t variable
* if you want to use osip_fifo_free().
* @param ff The element to initialise.
*/
void osip_fifo_init (osip_fifo_t * ff);
/**
* Free a fifo element.
* @param ff The element to work on.
*/
void osip_fifo_free (osip_fifo_t * ff);
/**
* Insert an element in a fifo (at the beginning).
* @param ff The element to work on.
* @param element The pointer on the element to insert.
*/
int osip_fifo_insert (osip_fifo_t * ff, void *element);
/**
* Add an element in a fifo.
* @param ff The element to work on.
* @param element The pointer on the element to add.
*/
int osip_fifo_add (osip_fifo_t * ff, void *element);
/**
* Get the number of element in a fifo.
* @param ff The element to work on.
*/
int osip_fifo_size (osip_fifo_t * ff);
#ifdef OSIP_MT
/**
* Get an element from a fifo or block until one is added.
* @param ff The element to work on.
*/
void *osip_fifo_get (osip_fifo_t * ff);
#endif
/**
* Try to get an element from a fifo, but do not block if there is no element.
* @param ff The element to work on.
*/
void *osip_fifo_tryget (osip_fifo_t * ff);
/** @} */
#ifdef __cplusplus
}
#endif
#endif
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