xti.h.html

unix 下的C开发手册,还用详细的例程。

<tr valign=top><td align=left>     struct netbuf
<td align=left>opt;
<tr valign=top><td align=left>     t_scalar_t
<td align=left>flags;
<tr valign=top><td align=left>};
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Disconnection structure.
 */
<P><table <tr valign=top><td align=left>struct t_discon {
<tr valign=top><td align=left>     struct netbuf
<td align=left>udata;
<td align=left>/* user data */
<tr valign=top><td align=left>     int
<td align=left>reason;
<td align=left>/* reason code */
<tr valign=top><td align=left>     int
<td align=left>sequence;
<td align=left>/* sequence number */
<tr valign=top><td align=left>};
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Call structure.
 */
<P><table <tr valign=top><th colspan=3 align=left>struct t_call {
<tr valign=top><td align=left>     struct netbuf
<td align=left>addr;
<td align=left>/* address */
<tr valign=top><td align=left>     struct netbuf
<td align=left>opt;
<td align=left>/* options */
<tr valign=top><td align=left>     struct netbuf
<td align=left>udata;
<td align=left>/* user data */
<tr valign=top><td align=left>     int
<td align=left>sequence;
<td align=left>/* sequence number */
<tr valign=top><td align=left>};
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * Datagram structure.
 */
<P><table <tr valign=top><th colspan=3 align=left>struct t_unitdata {
<tr valign=top><td align=left>     struct netbuf
<td align=left>addr;
<td align=left>/* address */
<tr valign=top><td align=left>     struct netbuf
<td align=left>opt;
<td align=left>/* options */
<tr valign=top><td align=left>     struct netbuf
<td align=left>udata;
<td align=left>/* user data */
<tr valign=top><td align=left>};
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * Unitdata error structure.
 */
<P><table <tr valign=top><td align=left>struct t_uderr {
<tr valign=top><td align=left>     struct netbuf
<td align=left>addr;
<td align=left>/* address */
<tr valign=top><td align=left>     struct netbuf
<td align=left>opt;
<td align=left>/* options */
<tr valign=top><td align=left>     t_scalar_t
<td align=left>error;
<td align=left>/* error code */
<tr valign=top><td align=left>};
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * The following are structure types used when dynamically
 * allocating the above structures via t_alloc().
 */
<P><table <tr valign=top><td align=left>#define T_BIND
<td align=left>1
<td align=left>/* struct t_bind */
<tr valign=top><td align=left>#define T_OPTMGMT
<td align=left>2
<td align=left>/* struct t_optmgmt */
<tr valign=top><td align=left>#define T_CALL
<td align=left>3
<td align=left>/* struct t_call */
<tr valign=top><td align=left>#define T_DIS
<td align=left>4
<td align=left>/* struct t_discon */
<tr valign=top><td align=left>#define T_UNITDATA
<td align=left>5
<td align=left>/* struct t_unitdata */
<tr valign=top><td align=left>#define T_UDERROR
<td align=left>6
<td align=left>/* struct t_uderr */
<tr valign=top><td align=left>#define T_INFO
<td align=left>7
<td align=left>/* struct t_info */
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * The following bits specify which fields of the above
 * structures should be allocated by t_alloc().
 */
<P><table <tr valign=top><td align=left>#define T_ADDR
<td align=left>0x01
<td align=left>/* address */
<tr valign=top><td align=left>#define T_OPT
<td align=left>0x02
<td align=left>/* options */
<tr valign=top><td align=left>#define T_UDATA
<td align=left>0x04
<td align=left>/* user data */
<tr valign=top><td align=left>#define T_ALL
<td align=left>0xffff
<td align=left>/* all the above fields supported */
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * The following are the states for the user.
 */
<P><table <tr valign=top><td align=left>#define T_UNBND
<td align=left>1
<td align=left>/* unbound */
<tr valign=top><td align=left>#define T_IDLE
<td align=left>2
<td align=left>/* idle */
<tr valign=top><td align=left>#define T_OUTCON
<td align=left>3
<td align=left>/* outgoing connection pending */
<tr valign=top><td align=left>#define T_INCON
<td align=left>4
<td align=left>/* incoming connection pending */
<tr valign=top><td align=left>#define T_DATAXFER
<td align=left>5
<td align=left>/* data transfer */
<tr valign=top><td align=left>#define T_OUTREL
<td align=left>6
<td align=left>/* outgoing release pending */
<tr valign=top><td align=left>#define T_INREL
<td align=left>7
<td align=left>/* incoming release pending */
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * General purpose defines.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>T_YES
<td align=right>1
<tr valign=top><td align=left>#define
<td align=left>T_NO
<td align=right>0
<tr valign=top><td align=left>#define
<td align=left>T_NULL
<td align=right>0
<tr valign=top><td align=left>#define
<td align=left>T_ABSREQ
<td align=right>0x8000
<tr valign=top><td align=left>#define
<td align=left>T_INFINITE
<td align=right>(-1)
<tr valign=top><td align=left>#define
<td align=left>T_INVALID
<td align=right>(-2)
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 *  Definitions for t_sysconf
 */
#define _SC_T_IOV_MAX     1  /* value is recommended only, not mandatory */
</code>
</pre>
<p>
<pre>
<code>
/*
 * General definitions for option management
 */
#define T_UNSPEC  (~0 - 2)  /* applicable to u_long, t_scalar_t, char .. */
#define T_ALLOPT  0    /* value is recommended-only, not mandatory */
#define T_ALIGN(p) (((t_uscalar_t)(p) + (sizeof (t_scalar_t) - 1)) \
                                        &amp; ~(sizeof (t_scalar_t) - 1))
#define T_OPT_DATA(tohp)         /* definition to be added           */

#define T_OPT_NEXTHDR(pbuf,buflen,popt) \
        (((char *)(popt) + T_ALIGN((popt)-&gt;len) &lt; \
        (char *)(pbuf) + (buflen)) ? \
        (struct t_opthdr *)((char *)(popt) + T_ALIGN((popt)-&gt;len)) : \
        (struct t_opthdr *)0 )

#define T_OPT_FIRSTHDR(nbp)      /* definition to be added           */
</code>
</pre>
<p>
<pre>
<code>
/* OPTIONS ON XTI LEVEL */

/* 
 *  XTI Level
 * 
 *  The values defined for the XTI Level are recommended-only,
 *  not mandatory.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>XTI_GENERIC
<td align=left>0xffff
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 *  XTI-level Options
 * 
 *  The values defined for these XTI-level Options are recommended-only,
 *  not mandatory.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>XTI_DEBUG
<td align=left>0x0001
<td align=left>/* enable debugging */
<tr valign=top><td align=left>#define
<td align=left>XTI_LINGER
<td align=left>0x0080
<td align=left>/* linger on close if data present */
<tr valign=top><td align=left>#define
<td align=left>XTI_RCVBUF
<td align=left>0x1002
<td align=left>/* receive buffer size */
<tr valign=top><td align=left>#define
<td align=left>XTI_RCVLOWAT
<td align=left>0x1004
<td align=left>/* receive low-water mark */
<tr valign=top><td align=left>#define
<td align=left>XTI_SNDBUF
<td align=left>0x1001
<td align=left>/* send buffer size */
<tr valign=top><td align=left>#define
<td align=left>XTI_SNDLOWAT
<td align=left>0x1003
<td align=left>/* send low-water mark */
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Structure used with linger option.
 */
struct t_linger {
     t_scalar_t   l_onoff;     /* option on/off */
     t_scalar_t   l_linger;    /* linger time   */
};
</code>
</pre>
<p>
<pre>
<code>
/* SPECIFIC ISO OPTION AND MANAGEMENT PARAMETERS */

/*
* Definition of the ISO transport classes
*/
<P><table <tr valign=top><td align=left>#define
<td align=left>T_CLASS0
<td align=left>0
<tr valign=top><td align=left>#define
<td align=left>T_CLASS1
<td align=left>1
<tr valign=top><td align=left>#define
<td align=left>T_CLASS2
<td align=left>2
<tr valign=top><td align=left>#define
<td align=left>T_CLASS3
<td align=left>3
<tr valign=top><td align=left>#define
<td align=left>T_CLASS4
<td align=left>4
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Definition of the priorities.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>T_PRITOP
<td align=left>0
<tr valign=top><td align=left>#define
<td align=left>T_PRIHIGH
<td align=left>1
<tr valign=top><td align=left>#define
<td align=left>T_PRIMID
<td align=left>2
<tr valign=top><td align=left>#define
<td align=left>T_PRILOW
<td align=left>3
<tr valign=top><td align=left>#define
<td align=left>T_PRIDFLT
<td align=left>4
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Definitions of the protection levels
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>T_NOPROTECT
<td align=left>1
<tr valign=top><td align=left>#define
<td align=left>T_PASSIVEPROTECT
<td align=left>2
<tr valign=top><td align=left>#define
<td align=left>T_ACTIVEPROTECT
<td align=left>4
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * Default value for the length of TPDUs.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>T_LTPDUDFLT
<td align=left>128
<td align=left>/* define obsolete in XPG4 */
</table>
</code>
</pre>
<p>
<pre>
<code>
/*
 * rate structure.
 */
struct rate {
     t_scalar_t targetvalue;       /* target value */
     t_scalar_t minacceptvalue;    /* value of minimum acceptable quality */
};
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * reqvalue structure.
 */
struct reqvalue {
     struct rate    called;    /* called rate */
     struct rate    calling;   /* calling rate */
};
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * thrpt structure.
 */
struct thrpt {
     struct reqvalue    maxthrpt;    /* maximum throughput */
     struct reqvalue    avgthrpt;    /* average throughput */
};
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 * transdel structure
 */
struct transdel {
     struct reqvalue    maxdel;    /* maximum transit delay */
     struct reqvalue    avgdel;    /* average transit delay */
};
</code>
</pre>
<p>
<pre>
<code>
/*
 * Protocol Levels
 * 
 *  The values defined for these Protocol Levels are recommended-only,
 *  not mandatory.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left>T_ISO_TP
<td align=left>0x0100
<tr valign=top><td align=left>#define
<td align=left>ISO_TP
<td align=left>0x0100
<td align=left>(<B>LEGACY</B>)
</table>
</code>
</pre>
<p>
<br>
<pre>
<code>
/*
 *  Options for Quality of Service and Expedited Data (ISO 8072:1994)
 * 
 *  The values defined for these QoS and Expedited Data are 
 *  recommended-only, not mandatory.
 */
<P><table <tr valign=top><td align=left>#define
<td align=left><i>T_TCO_THROUGHPUT</i>
<td align=left>0x0001
<tr valign=top><td align=left>#define
<td align=left><i>TCO_THROUGHPUT</i>
<td align=left>0x0001
<td align=left>(<B>LEGACY</B>)
<tr valign=top><td align=left>#define
<td align=left><i>T_TCO_TRANSDEL</i>
<td align=left>0x0002
<tr valign=top><td align=left>#define
<td align=left><i>TCO_TRANSDEL</i>