source: mainline/uspace/app/sbi/src/builtin/bi_task.c

Last change on this file was 1433ecda, checked in by Jiri Svoboda <jiri@…>, 7 years ago

Fix cstyle: make ccheck-fix and commit only files where all the changes are good.

  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 * Copyright (c) 2010 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @file Task builtin binding. */
30
31#include <stdio.h>
32#include <stdlib.h>
33#include <assert.h>
34#include "../builtin.h"
35#include "../list.h"
36#include "../mytypes.h"
37#include "../os/os.h"
38#include "../run.h"
39#include "../strtab.h"
40
41#include "bi_task.h"
42
43static void bi_task_exec(run_t *run);
44
45/** Declare task builtin.
46 *
47 * @param bi Builtin object
48 */
49void bi_task_declare(builtin_t *bi)
50{
51 builtin_code_snippet(bi,
52 "class Task is\n"
53 "fun Exec(args : string[], packed), static, builtin;\n"
54 "end\n");
55}
56
57/** Bind builtin functions.
58 *
59 * @param bi Builtin object
60 */
61void bi_task_bind(builtin_t *bi)
62{
63 builtin_fun_bind(bi, "Task", "Exec", bi_task_exec);
64}
65
66/** Start an executable and wait for it to finish.
67 *
68 * @param run Runner object
69 */
70static void bi_task_exec(run_t *run)
71{
72 rdata_var_t *args;
73 rdata_var_t *var;
74 rdata_array_t *array;
75 rdata_var_t *arg;
76 int idx, dim;
77 const char **cmd;
78
79#ifdef DEBUG_RUN_TRACE
80 printf("Called Task.Exec()\n");
81#endif
82 args = run_local_vars_lookup(run, strtab_get_sid("args"));
83
84 assert(args);
85 assert(args->vc == vc_ref);
86
87 var = args->u.ref_v->vref;
88 assert(var->vc == vc_array);
89
90 array = var->u.array_v;
91 assert(array->rank == 1);
92 dim = array->extent[0];
93
94 if (dim == 0) {
95 printf("Error: Builtin.Exec() expects at least one argument.\n");
96 exit(1);
97 }
98
99 cmd = calloc(dim + 1, sizeof(char *));
100 if (cmd == NULL) {
101 printf("Memory allocation failed.\n");
102 exit(1);
103 }
104
105 for (idx = 0; idx < dim; ++idx) {
106 arg = array->element[idx];
107 if (arg->vc != vc_string) {
108 printf("Error: Argument to Builtin.Exec() must be "
109 "string (found %d).\n", arg->vc);
110 exit(1);
111 }
112
113 cmd[idx] = arg->u.string_v->value;
114 }
115
116 cmd[dim] = NULL;
117
118 if (os_exec((char *const *)cmd) != EOK) {
119 printf("Error: Exec failed.\n");
120 exit(1);
121 }
122}
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