From:             php at alterego dot dp dot ua
Operating system: Any
PHP version:      5.2.5RC2
PHP Bug Type:     Apache related
Bug description:  connection_status() CAN function properly without output

Description:
------------
Please regard this comment seriously, it really contains information on
how to fix 25266, 22072, 30301 and many other (NOT bogus) bugs under Apache
SAPI.

>From bug 25266 comment by [EMAIL PROTECTED]:
> Apache provides a way for PHP to detect if connection was 
> aborted ONLY and ONLY when PHP is either reading data from 
> the user or writing back data.

That is not true.

This link contains description and code (mod_perl) on how to detect
disconnection without flushing data:
http://www.webreference.com/programming/perl/cookbook/chap4/5.html

My untidy but WORKING solution was to add code given below to
sapi_apache_flush function and call flush() function before
connection_aborted() checks WITHOUT any output. Of course, it would be
perfectly logical to add it to connection_aborted function itself, but I
could not find any way to call SAPI-specific function from core.

Working code is:
int fd;
struct timeval tv = {0,0};
fd_set set;

if (server_context) {
    request_rec *r = SG(server_context);

    fd = ap_bfileno(r->connection->client, B_WR);

    if (fd >= 0) {
        FD_ZERO(&set);
        FD_SET(fd, &set);
        if (select(fd + 1, &set, NULL, NULL, &tv) >= 0 && FD_ISSET(fd,
&set))
        {
            php_handle_aborted_connection();
        }
    }
}



-- 
Edit bug report at http://bugs.php.net/?id=43219&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=43219&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=43219&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): 
http://bugs.php.net/fix.php?id=43219&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=43219&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=43219&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=43219&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=43219&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=43219&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=43219&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=43219&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=43219&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=43219&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=43219&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=43219&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=43219&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=43219&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=43219&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=43219&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=43219&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=43219&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=43219&r=mysqlcfg

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