I think there is a problem with the ap_f* wrappers in httpd. If the flush
function is invoked from within apr_brigade_write, we end up skipping over
a filter.
The ap_f* fuctions are defined as:
#define ap_fputs(f, bb, str) \
apr_brigade_puts(bb, ap_filter_flush, (f)->next, str)
If we decide to flush from within apr_brigade_write, ap_filter_flush is
called with f->next, causing f->next->next to be the next filter to run.
(skipping over f->next).
A small patch is attached,
Thanks,
-Ryan
Index: util_filter.h
===================================================================
RCS file: /home/cvspublic/httpd-2.0/include/util_filter.h,v
retrieving revision 1.48
diff -u -r1.48 util_filter.h
--- util_filter.h 2001/03/17 15:58:09 1.48
+++ util_filter.h 2001/04/12 17:56:41
@@ -402,7 +402,7 @@
* @param nbyte The number of bytes in the data
*/
#define ap_fwrite(f, bb, data, nbyte) \
- apr_brigade_write(bb, ap_filter_flush, (f)->next, data, nbyte)
+ apr_brigade_write(bb, ap_filter_flush, f, data, nbyte)
/**
* Write a buffer for the current filter, buffering if possible.
@@ -411,7 +411,7 @@
* @param str The string to write
*/
#define ap_fputs(f, bb, str) \
- apr_brigade_puts(bb, ap_filter_flush, (f)->next, str)
+ apr_brigade_puts(bb, ap_filter_flush, f, str)
/**
* Write a character for the current filter, buffering if possible.
@@ -420,7 +420,7 @@
* @param c The character to write
*/
#define ap_fputc(f, bb, c) \
- apr_brigade_putc(bb, ap_filter_flush, (f)->next, c)
+ apr_brigade_putc(bb, ap_filter_flush, f, c)
/**
* Write an unspecified number of strings to the current filter
