1 /*
2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19 FILE_LICENCE ( GPL2_OR_LATER );
20
21 #include <string.h>
22 #include <stdio.h>
23 #include <errno.h>
24 #include <gpxe/process.h>
25 #include <console.h>
26 #include <gpxe/keys.h>
27 #include <gpxe/job.h>
28 #include <gpxe/monojob.h>
29 #include <gpxe/timer.h>
30
31 /** @file
32 *
33 * Single foreground job
34 *
35 */
36
37 static int monojob_rc;
38
monojob_done(struct job_interface * job __unused,int rc)39 static void monojob_done ( struct job_interface *job __unused, int rc ) {
40 monojob_rc = rc;
41 }
42
43 /** Single foreground job operations */
44 static struct job_interface_operations monojob_operations = {
45 .done = monojob_done,
46 .kill = ignore_job_kill,
47 .progress = ignore_job_progress,
48 };
49
50 /** Single foreground job */
51 struct job_interface monojob = {
52 .intf = {
53 .dest = &null_job.intf,
54 .refcnt = NULL,
55 },
56 .op = &monojob_operations,
57 };
58
59 /**
60 * Wait for single foreground job to complete
61 *
62 * @v string Job description to display
63 * @ret rc Job final status code
64 */
monojob_wait(const char * string)65 int monojob_wait ( const char *string ) {
66 int key;
67 int rc;
68 unsigned long last_progress_dot;
69 unsigned long elapsed;
70
71 printf ( "%s.", string );
72 monojob_rc = -EINPROGRESS;
73 last_progress_dot = currticks();
74 while ( monojob_rc == -EINPROGRESS ) {
75 step();
76 if ( iskey() ) {
77 key = getchar();
78 switch ( key ) {
79 case CTRL_C:
80 job_kill ( &monojob );
81 rc = -ECANCELED;
82 goto done;
83 default:
84 break;
85 }
86 }
87 elapsed = ( currticks() - last_progress_dot );
88 if ( elapsed >= TICKS_PER_SEC ) {
89 printf ( "." );
90 last_progress_dot = currticks();
91 }
92 }
93 rc = monojob_rc;
94
95 done:
96 job_done ( &monojob, rc );
97 if ( rc ) {
98 printf ( " %s\n", strerror ( rc ) );
99 } else {
100 printf ( " ok\n" );
101 }
102 return rc;
103 }
104