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From r..@locus.apache.org
Subject cvs commit: apache-2.0/src/lib/apr/misc/unix otherchild.c
Date Tue, 04 Apr 2000 21:48:56 GMT
rbb         00/04/04 14:48:56

  Modified:    src/lib/apr/include apr_thread_proc.h
               src/lib/apr/misc/unix otherchild.c
  Log:
  Update the other_child stuff with docs and a couple of minor changes.
  There is other stuff that is necessary to make this a portable API, but
  this is a start.  The rest will have to wait until tomorrow.
  
  Revision  Changes    Path
  1.19      +2 -1      apache-2.0/src/lib/apr/include/apr_thread_proc.h
  
  Index: apr_thread_proc.h
  ===================================================================
  RCS file: /home/cvs/apache-2.0/src/lib/apr/include/apr_thread_proc.h,v
  retrieving revision 1.18
  retrieving revision 1.19
  diff -u -r1.18 -r1.19
  --- apr_thread_proc.h	2000/04/04 20:26:33	1.18
  +++ apr_thread_proc.h	2000/04/04 21:48:55	1.19
  @@ -163,7 +163,8 @@
                                void (*maintenance) (int reason, void *),
                                void *data, int write_fd, ap_context_t *p);
   void ap_unregister_other_children(void *data);
  -ap_status_t reap_other_child(ap_proc_t *pid); 
  +ap_status_t ap_reap_other_child(ap_proc_t *pid); 
  +void ap_check_other_child(void); 
   
   ap_status_t ap_kill(ap_proc_t *proc, int sig);
   #ifdef __cplusplus
  
  
  
  1.3       +35 -5     apache-2.0/src/lib/apr/misc/unix/otherchild.c
  
  Index: otherchild.c
  ===================================================================
  RCS file: /home/cvs/apache-2.0/src/lib/apr/misc/unix/otherchild.c,v
  retrieving revision 1.2
  retrieving revision 1.3
  diff -u -r1.2 -r1.3
  --- otherchild.c	2000/04/04 20:26:35	1.2
  +++ otherchild.c	2000/04/04 21:48:56	1.3
  @@ -57,6 +57,20 @@
   
   static ap_other_child_rec_t *other_children = NULL;
   
  +/* ***APRDOC********************************************************
  + * void ap_register_other_child(ap_proc_t *pid, 
  + *                    void (*maintenance) (int reason, void *data),
  + *                    void *data, int write_fd, ap_context_t *p)
  + *    Register an other_child -- a child which must be kept track of so
  + *    that the program knows when it has dies or disappeared.
  + * arg 1)  pid is the pid of the child.
  + * arg 2)  maintenance is a function that is invoked with a reason and the
  + *         data pointer passed here.
  + * arg 3)  The data to pass to the maintenance function.
  + * arg 4)  An fd that is probed for writing.  If it is ever unwritable
  + *         then the maintenance is invoked with reason OC_REASON_UNWRITABLE.
  + * arg 5)  The context to use for allocating memory.
  + */
   API_EXPORT(void) ap_register_other_child(ap_proc_t *pid,
                        void (*maintenance) (int reason, void *),
                        void *data, int write_fd, ap_context_t *p)
  @@ -72,9 +86,15 @@
       other_children = ocr;
   }
   
  -/* note that since this can be called by a maintenance function while we're
  - * scanning the other_children list, all scanners should protect themself
  - * by loading ocr->next before calling any maintenance function.
  +/* ***APRDOC********************************************************
  + * void ap_unregister_other_child(void *data)
  + *    Stop watching the specified process.
  + * arg 1) The data to pass to the maintenance function.  This is
  + *        used to find the process to unregister.
  + * NOTE:  Since this can be called by a maintenance function while we're
  + *        scanning the other_children list, all scanners should protect 
  + *        themself by loading ocr->next before calling any maintenance 
  + *        function.
    */
   API_EXPORT(void) ap_unregister_other_child(void *data)
   {
  @@ -141,7 +161,12 @@
       }
   }
   
  -/* possibly reap an other_child, return 0 if yes, -1 if not */
  +/* ***APRDOC********************************************************
  + * ap_status_t ap_reap_other_child(ap_proc_t *piod)
  + *    Check on the specified process.  If it is gone, call the
  + *    maintenance function.
  + * arg 1) The process to check.
  + */
   API_EXPORT(ap_status_t) reap_other_child(ap_proc_t *pid)
   {
       ap_other_child_rec_t *ocr, *nocr;
  @@ -154,9 +179,14 @@
           (*ocr->maintenance) (APR_OC_REASON_DEATH, ocr->data);
           return 0;
       }
  -    return -1;
  +    return APR_CHILD_NOTDONE;
   }
   
  +/* ***APRDOC********************************************************
  + * void ap_check_other_child(void)
  + *    Loop through all registered other_children and call the
  + *    appropriate maintenance function when necessary.
  + */
   API_EXPORT(void) check_other_child(void)
   {
       ap_other_child_rec_t *ocr, *nocr;
  
  
  

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