DO NOT REPLY [Bug 12757] - mod_ldap cache tries to open an existing shared memory file

From: <bugzilla(at)apache.org>
Date: Fri Jan 10 2003 - 17:58:22 EST

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mod_ldap cache tries to open an existing shared memory file

• Additional Comments From scooter@gene.com 2003-01-10 22:58 ------- Actually, wouldn't it be better to just attach to the named file? I implemented something like this:

cvs diff -c util_ldap_cache.c
Index: util_ldap_cache.c

---

RCS file:
/usr/src/cvs/cvsroot/contrib/Apache/modules/experimental/util_ldap_cache.c,v retrieving revision 1.1.1.1
diff -c -r1.1.1.1 util_ldap_cache.c
*** util_ldap_cache.c 8 Oct 2002 20:49:28 -0000 1.1.1.1 --- util_ldap_cache.c 10 Jan 2003 22:55:51 -0000

---

• 296,304 **** apr_status_t result;

      result = apr_shm_create(&util_ldap_shm, reqsize, "/tmp/ldap_cache", pool);

!     if (result != APR_SUCCESS) {


          return result;
-     }
  
      /* This will create a rmm "handler" to get into the shared memory area */
      apr_rmm_init(&util_ldap_rmm, NULL,
--- 296,310 ----
      apr_status_t result;
  
      result = apr_shm_create(&util_ldap_shm, reqsize, "/tmp/ldap_cache", pool);

!     if (result == EEXIST) {

!       /*

!        * The cache could have already been created (i.e. we may be a child


process).  See

!        * if we can attach to the existing shared memory

!        */

!       result = apr_shm_attach(&util_ldap_shm, "/tmp/ldap_cache", pool);

!     } 

!     if (result != APR_SUCCESS)


          return result;
  
      /* This will create a rmm "handler" to get into the shared memory area */
      apr_rmm_init(&util_ldap_rmm, NULL,

and it seems to work for me.

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