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diff --git a/man/man3/xpanslookup.3 b/man/man3/xpanslookup.3 new file mode 100644 index 0000000..8725e3e --- /dev/null +++ b/man/man3/xpanslookup.3 @@ -0,0 +1,232 @@ +.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.13) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +\&\fBXPANSLookup: lookup registered \s-1XPA\s0 access points\fR +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <xpa.h> +\& +\& int XPANSLookup(XPA xpa, +\& char *template, char type, +\& char ***classes, char ***names, +\& char ***methods, char ***infos) +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\s-1XPA\s0 routines act on a class:name identifier in such a way +that all access points that match the identifier are processed. It is +sometimes desirable to choose specific access points from the +candidates that match the +template. In order to do this, the +XPANSLookup routine can be called to return a list of matches, so that +specific class:name instances can then be fed to \fIXPAGet()\fR, \fIXPASet()\fR, etc. +.PP +.Vb 4 +\& The first argument is an optional XPA struct. If non\-NULL, the +\&existing name server connection associated with the specified xpa is +\&used to query the xpans name server for matching templates. Otherwise, +\&a new (temporary) connection is established with the name server. +.Ve +.PP +The second argument to XPANSLookup is the class:name +template +to match. +.PP +The third argument for \fIXPANSLookup()\fR is the type of access and can be +any combination of: +.PP +.Vb 5 +\& type explanation +\& \-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\- +\& g xpaget calls can be made on this access point +\& s xpaset calls can be made on this access point +\& i xpainfo calls can be made on this access point +.Ve +.PP +The call typically specifies only one of these at a time. +.PP +The final arguments are pointers to arrays that will be filled +in and returned by the name server. The name server will allocate and +return arrays filled with the classes, names, and methods of all \s-1XPA\s0 +access points that match the template +and have the specified type. Also returned are info strings, which +generally are used internally by the client routines. These can be +ignored (but the strings must be freed). The function returns the +number of matches. The returned value can be used to loop through the +matches: +.PP +\&\fBExample:\fR +.PP +.Vb 1 +\& #include <xpa.h> +\& +\& char **classes; +\& char **names; +\& char **methods; +\& char **infos; +\& int i, n; +\& n = XPANSLookup(NULL, "foo*", "g", &classes, &names, &methods, &infos); +\& for(i=0; i<n; i++){ +\& [more specific checks on possibilities ...] +\& [perhaps a call to XPAGet for those that pass, etc. ...] +\& /* don\*(Aqt forget to free alloc\*(Aqed strings when done */ +\& free(classes[i]); +\& free(names[i]); +\& free(methods[i]); +\& free(infos[i]); +\& } +\& /* free up arrays alloc\*(Aqed by names server */ +\& if( n > 0 ){ +\& free(classes); +\& free(names); +\& free(methods); +\& free(infos); +\& } +.Ve +.PP +The specified +template +also can be a host:port specification, for example: +.PP +.Vb 1 +\& myhost:12345 +.Ve +.PP +In this case, no connection is made to the name server. Instead, the +call will return one entry such that the ip array contains the ip for +the specified host and the port array contains the port. The class +and name entries are set to the character \*(L"?\*(R", since the class and +name of the access point are not known. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +See xpa(n) for a list of \s-1XPA\s0 help pages |