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    • Ruediger Pluem's avatar
      * Add hint to PR in comment. No functional change. · 36ab9018
      Ruediger Pluem authored 
      
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@630350 13f79535-47bb-0310-9956-ffa450edef68
      36ab9018
    • Ruediger Pluem's avatar
      * Second part of fix for PR 44402: · 7b44f2dd
      Ruediger Pluem authored 
        - Fix the same race condition in event MPM.
  - Slightly optimize code in worker MPM by removing the need for an additional
    dereference operation.
  - Do some word smithing on the CHANGES entry.

PR: 44402
Submitted by: Basant Kumar Kukreja <basant.kukreja sun.com>
Reviewed by: rpluem


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@630348 13f79535-47bb-0310-9956-ffa450edef68
      7b44f2dd
    • Nick Kew's avatar
      Worker MPM: fix race condition · 11ebf458
      Nick Kew authored 
      PR44402: reported and fixed by Basant Kumar Kukreja


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@630335 13f79535-47bb-0310-9956-ffa450edef68
      11ebf458
    • Joe Orton's avatar
      Session cache interface redesign, Part 3: · d3e1af8b
      Joe Orton authored 
      Move provider-private context out of SSLModConfigRec and into an
opaque context pointer.  Use real error propagation in the ->init
functions rather than ssl_die().

* modules/ssl/ssl_private.h (modssl_sesscache_provider): Take a
  context out-parameter from ->init, and return an apr_status_t.
  Add context pointer as first arg for the other function types.
  (SSLModConfigRec): Remove tSessionCacheData* fields; add
  sesscache_context field.

* modules/ssl/ssl_scache.c (ssl_scache_init): Move once-per-process
  invocation check back into here.  
  (ssl_scache_*): Adjust to use context pointer.

* modules/ssl/ssl_scache_shmcb.c, modules/ssl/ssl_scache_dc.c,
  modules/ssl/ssl_scache_dbm.c: Adjust all implementations to use
  opaque context pointer.

* modules/ssl/ssl_scache_memcache.c: Move memcache context into the
  context structure rather than using global state.

* modules/ssl/ssl_engine_config.c: Remove handling of
  pSessionCacheData* fields in SSLModConfigRec.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@630323 13f79535-47bb-0310-9956-ffa450edef68
      d3e1af8b
    • Joe Orton's avatar
      Move SSL session data deserialization up out of the session cache · c55b84c7
      Joe Orton authored 
      storage providers; includes a significant change to the shmcb storage
structure:

* modules/ssl/ssl_private.h (modssl_sesscache_provider): Change
  retrieve function to take dest/destlen output buffer, to take a
  constant id paramater, and to return a BOOL.

* modules/ssl/ssl_scache.c (ssl_scache_retrieve): Update accordingly,
  perform SSL deserialization here.

* modules/ssl/ssl_scache_dc.c (ssl_scache_dc_retrieve),
  modules/ssl/ssl_scache_dbm.c (ssl_scache_dbm_retrieve),
  modules/ssl/ssl_scache_memcache.c (ssl_scache_mc_retrieve):
  Update accordingly.

* modules/ssl/ssl_scache_shmcb.c: Store the whole ID in the cache
  before the data, so that each index can be compared against the
  requested ID without deserializing the data.  This requires approx
  20% extra storage per session in the common case, though should
  reduce CPU overhead in some retrieval paths.
  (SHMCBIndex): Replace s_id2 field with id_len.
  (shmcb_cyclic_memcmp): New function.
  (ssl_scache_shmcb_init): Change the heuristics to allow for increase
  in per-session storage requirement.
  (ssl_scache_shmcb_retrieve): Drop requirement on ID length.
  (shmcb_subcache_store): Store the ID in the cyclic buffer.
  (shmcb_subcache_retrieve, shmcb_subcache_remove): Compare against
  the stored ID rather than deserializing the data.
  (ssl_scache_shmcb_retrieve, ssl_scache_shmcb_store): Update
  accordingly.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@630307 13f79535-47bb-0310-9956-ffa450edef68
      c55b84c7