[AOLSERVER-COMMITS] aolserver/doc Ns_Filter.3, 1.6, 1.7 ns_filter.n, 1.5, 1.6

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Update of /cvsroot/aolserver/aolserver/doc
In directory vz-cvs-4.sog:/tmp/cvs-serv9311/doc

Modified Files:
	Ns_Filter.3 ns_filter.n 
Log Message:
add various functions, mostly from SF RFEs -
pre-write filter, response content modification,
insert/append filter, priority filters, ns_conn gzip flag,
re-run filters on redirect with new config option "filterredirect",
add new constants, fix STREQ macro

Index: Ns_Filter.3
===================================================================
RCS file: /cvsroot/aolserver/aolserver/doc/Ns_Filter.3,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** Ns_Filter.3	8 Dec 2009 04:13:18 -0000	1.6
--- Ns_Filter.3	11 Oct 2011 08:03:09 -0000	1.7
***************
*** 58,66 ****

  .AP int when in
! OR-ed combination of the values \fBNS_FILTER_READ\fR,
! \fBNS_FILTER_PRE_QUEUE\fR, \fBNS_FILTER_PRE_AUTH\fR,
! \fBNS_FILTER_POST_AUTH\fR, \fBNS_FILTER_WRITE\fR, and
! \fBNS_FILTER_TRACE\fI indicating the connection state at
! which \fIproc\fR should be invoked.

  .AP void *arg in
--- 58,76 ----

  .AP int when in
! OR-ed combination of flags controlling when 
! .B proc 
! is to be invoked.  Suppoeted values
! are 
! .BR NS_FILTER_READ ,
! .BR NS_FILTER_PRE_QUEUE ,
! .BR NS_FILTER_PRE_AUTH ,
! .BR NS_FILTER_POST_AUTH ,
! .BR NS_FILTER_PRE_WRITE ,
! .BR NS_FILTER_WRITE ,
! .BR NS_FILTER_TRACE ,
! .BR NS_FILTER_PRIORITY(prio) ,
! .BR NS_FILTER_INSERT ,
! .BR NS_FILTER_APPEND .
! See below for more information.

  .AP void *arg in
***************
*** 131,140 ****
  to access addition, possibly blocking network resources before
  queueing the thread for processing.
! If this \fIproc\fR returns a value other than \fBNS_OK\fR, the conneciton
  will be aborted.

  .sp
  NOTE: See the comments above for \fBNS_FILTER_READ\fR for caveats
! of \fIproc\fR being invoked in a thread other than the conneciton
  processing thread.

--- 141,150 ----
  to access addition, possibly blocking network resources before
  queueing the thread for processing.
! If this \fIproc\fR returns a value other than \fBNS_OK\fR, the connection
  will be aborted.

  .sp
  NOTE: See the comments above for \fBNS_FILTER_READ\fR for caveats
! of \fIproc\fR being invoked in a thread other than the connection
  processing thread.

***************
*** 148,151 ****
--- 158,188 ----

  .TP
+ NS_FILTER_PRE_WRITE
+ Invoke
+ .I proc
+ just before sending content to the client.  A filter at this point can
+ access content to be sent with 
+ .BR Ns_ConnGetResponseContent,
+ set it with 
+ .BR Ns_ConnSetResponseContent,
+ or append to it with 
+ .B Ns_ConnAppendResponseContent.
+ 
+ .sp
+ NOTE(1): This filter may not get called at all for a response;  in
+ particular FastPath responses will bypass it, as will content sent by
+ the lower-level i/o functions.
+ 
+ .sp
+ NOTE(2): This filter may be invoked from the connection thread or
+ from a different thread.  See the comments above for 
+ .B NS_FILTER_READ
+ for caveats
+ of 
+ .I proc
+ being invoked in a thread other than the connection
+ processing thread.
+ 
+ .TP
  NS_FILTER_WRITE
  Invoke \fIproc\fR after each write to the client.
***************
*** 157,160 ****
--- 194,213 ----
  NS_FILTER_TRACE

+ .TP
+ NS_FILTER_PRIORITY(prio)
+ Sets the priortiy of this filter.  Valid values for prio are -128 to
+ 127.  Numerically lower values have higher priority, i.e., they will 
+ be executed first.  The default priority value is 0; values outside the 
+ range [-100 .. 100] are reserved for system use.
+ 
+ .TP
+ NS_FILTER_INSERT
+ Insert this filter at the beginning of the list of filters with equal 
+ priority.
+ 
+ .TP
+ NS_FILTER_APPEND
+ Append this filter to the end of the list of filters with equal priority.
+ This flag is the default.

  .SH "SEE ALSO"

Index: ns_filter.n
===================================================================
RCS file: /cvsroot/aolserver/aolserver/doc/ns_filter.n,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** ns_filter.n	8 Dec 2009 15:33:00 -0000	1.5
--- ns_filter.n	11 Oct 2011 08:03:09 -0000	1.6
***************
*** 43,57 ****
  \fBns_register_trace \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter read\fR \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter prequeue\fR \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter preauth\fR \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter postauth\fR \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter write\fR \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter trace\fR \fImethod url script ?arg?\fR
  .BE

--- 43,59 ----
  \fBns_register_trace \fImethod url script ?arg?\fR
  .sp
! \fBns_register_filter read\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .sp
! \fBns_register_filter prequeue\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .sp
! \fBns_register_filter preauth\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .sp
! \fBns_register_filter postauth\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .sp
! \fBns_register_filter prewrite\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .sp
! \fBns_register_filter write\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
! .sp
! \fBns_register_filter trace\fR \fI?-insert|-append? ?-priority num? method url script ?arg?\fR
  .BE

***************
*** 89,92 ****
--- 91,118 ----

  .PP
+ The 
+ .I -priority num
+ option controls the order in which filters will be executed for a given 
+ phase.  The valid range for 
+ .I num
+ is -128 to 127, with lower values having higher priority, i.e., they
+ will be executed sooner.  The default priority is 0.  Priority values
+ outside the range [-100 .. 100] are reserved for system use.
+ 
+ .PP
+ The
+ .I -insert 
+ or 
+ .I -append
+ options control where a new filter is added in relation to other
+ filters of equal priority. 
+ .I -insert
+ causes the filter to be added to the front of the list (executed first),
+ while 
+ .I -append
+ causes it to be added to the end of the list.  The default is 
+ .I -append
+ 
+ .PP
  The \fIproc\fR argument is the name of a Tcl procedure to invoke
  when the connection has reached the requested state.  The \fIproc\fR
***************
*** 167,170 ****
--- 193,203 ----

  .TP
+ \fBns_register_filter \fBprewrite\fR \fImethod url script ?arg?\fR
+ Invoke \fIproc\fR before the response content is sent to the client.
+ This filter can be used to modify the response content before being
+ sent.  This filter will not get called for content sent with 
+ \fBns_returnfile\fR or \fBns_write\fR
+ 
+ .TP
  \fBns_register_filter \fBwrite\fR \fImethod url script ?arg?\fR
  Invoke \fIproc\fR after each write to the client.  Note the

[AOLSERVER-COMMITS] aolserver/doc Ns_Filter.3, 1.6, 1.7 ns_filter.n, 1.5, 1.6

High-performance multithreaded web server

[AOLSERVER-COMMITS] aolserver/doc Ns_Filter.3, 1.6, 1.7 ns_filter.n, 1.5, 1.6