root/opal/util/daemon_init.h

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INCLUDED FROM

   1 /*
   2  * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2006 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * $COPYRIGHT$
  13  *
  14  * Additional copyrights may follow
  15  *
  16  * $HEADER$
  17  */
  18 /** @file **/
  19 
  20 #ifndef OPAL_DAEMON_INIT_H
  21 #define OPAL_DAEMON_INIT_H
  22 
  23 #include "opal_config.h"
  24 
  25 BEGIN_C_DECLS
  26 
  27 /*
  28  * Turn a process into a daemon.
  29  *
  30  * This function converts a process into a daemon in an orderly manner. It first forks a child process,
  31  * then the parent exits. The child continues on to become a session leader, reset the file mode creation
  32  * mask, and changes working directories to the one specified.
  33  *
  34  * @param working_dir Pointer to a character string containing the desired working directory. Providing
  35  * a value of NULL will cause the function to leave the program in the current working directory.
  36  *
  37  * @retval OPAL_SUCCESS Indicates that the conversion was successful
  38  * @retval OPAL_ERROR Indicates that the conversion was not successful - a fork could not be completed.
  39  */
  40 OPAL_DECLSPEC int opal_daemon_init(char *working_dir);
  41 
  42 END_C_DECLS
  43 
  44 #endif /* OPAL_DAEMON_INIT_H */
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