OpenMPI 0.1.1

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daemon_init.h
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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 */