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Bug #7554 Exclusive flock() breaks client/server communication
Submitted: 2000-10-31 14:50 UTC Modified: 2000-11-01 07:54 UTC
From: php at develnet dot org Assigned:
Status: Closed Package: Filesystem function related
PHP Version: 4.0.3pl1 OS: RedHat 6.2
Private report: No CVE-ID: None
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 [2000-10-31 14:50 UTC] php at develnet dot org
A 2nd exclusive flock() - or a try to do so - causes a kind of infinite loop. Browser(s) are not responding. The Apache-process is allowed to write to /tmp.

    $fp1 = fopen("/tmp/test.txt","a");
    if (!$fp1)          die("cant open file 1");
    if (!flock($fp1,2)) die("cant lock file 1");
    $fp2 = fopen("/tmp/test.txt","a");
    if (!$fp2)          die("cant open file 2");

    // causes troubles
    if (!flock($fp2,2)) die("cant lock file 2");

My configure:

'./configure' '--with-apxs=/usr/local/httpd/bin/apxs' '--with-config-file-path=/usr/local/httpd/conf' '--enable-track-vars' '--with-gdbm' '--enable-ftp' '--with-gd' '--with-ttf=/usr/include/freetype' '--enable-sysvshm' '--enable-sysvsem' '--with-openssl=../openssl-0.9.5a' '--with-imap=../imap-4.7c' '--with-pdflib' '--enable-sockets' '--with-mysql=/usr/local/mysql' '--with-oci8=/opt/oracle/product/8.1.5' '--with-sablot'


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 [2000-11-01 07:54 UTC]
closed on user request
 [2022-03-26 05:05 UTC] giw42161 at uooos dot com

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