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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 Jakub Jermar |
3 | * Copyright (c) 2008 Jiri Svoboda |
3 | * Copyright (c) 2008 Jiri Svoboda |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup libc |
30 | /** @addtogroup libc |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #include <task.h> |
36 | #include <task.h> |
37 | #include <libc.h> |
37 | #include <libc.h> |
38 | #include <stdlib.h> |
38 | #include <stdlib.h> |
39 | #include <errno.h> |
39 | #include <errno.h> |
40 | #include <loader/loader.h> |
40 | #include <loader/loader.h> |
41 | #include <string.h> |
41 | #include <string.h> |
42 | #include <ipc/ns.h> |
42 | #include <ipc/ns.h> |
43 | #include <macros.h> |
43 | #include <macros.h> |
44 | #include <async.h> |
44 | #include <async.h> |
45 | 45 | ||
46 | task_id_t task_get_id(void) |
46 | task_id_t task_get_id(void) |
47 | { |
47 | { |
48 | task_id_t task_id; |
48 | task_id_t task_id; |
49 | (void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id); |
49 | (void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id); |
50 | 50 | ||
51 | return task_id; |
51 | return task_id; |
52 | } |
52 | } |
53 | 53 | ||
54 | /** Set the task name. |
54 | /** Set the task name. |
55 | * |
55 | * |
56 | * @param name The new name, typically the command used to execute the |
56 | * @param name The new name, typically the command used to execute the |
57 | * program. |
57 | * program. |
58 | * |
58 | * |
59 | * @return Zero on success or negative error code. |
59 | * @return Zero on success or negative error code. |
60 | * |
60 | * |
61 | */ |
61 | */ |
62 | int task_set_name(const char *name) |
62 | int task_set_name(const char *name) |
63 | { |
63 | { |
64 | return __SYSCALL2(SYS_TASK_SET_NAME, (sysarg_t) name, str_size(name)); |
64 | return __SYSCALL2(SYS_TASK_SET_NAME, (sysarg_t) name, str_size(name)); |
65 | } |
65 | } |
66 | 66 | ||
67 | /** Create a new task by running an executable from the filesystem. |
67 | /** Create a new task by running an executable from the filesystem. |
68 | * |
68 | * |
69 | * This is really just a convenience wrapper over the more complicated |
69 | * This is really just a convenience wrapper over the more complicated |
70 | * loader API. |
70 | * loader API. |
71 | * |
71 | * |
72 | * @param path pathname of the binary to execute |
72 | * @param path pathname of the binary to execute |
73 | * @param argv command-line arguments |
73 | * @param argv command-line arguments |
74 | * |
74 | * |
75 | * @return ID of the newly created task or zero on error. |
75 | * @return ID of the newly created task or zero on error. |
76 | * |
76 | * |
77 | */ |
77 | */ |
78 | task_id_t task_spawn(const char *path, char *const args[]) |
78 | task_id_t task_spawn(const char *path, char *const args[]) |
79 | { |
79 | { |
80 | /* Connect to a program loader. */ |
80 | /* Connect to a program loader. */ |
81 | loader_t *ldr = loader_connect(); |
81 | loader_t *ldr = loader_connect(); |
82 | if (ldr == NULL) |
82 | if (ldr == NULL) |
83 | return 0; |
83 | return 0; |
84 | 84 | ||
85 | /* Get task ID. */ |
85 | /* Get task ID. */ |
86 | task_id_t task_id; |
86 | task_id_t task_id; |
87 | int rc = loader_get_task_id(ldr, &task_id); |
87 | int rc = loader_get_task_id(ldr, &task_id); |
88 | if (rc != EOK) |
88 | if (rc != EOK) |
89 | goto error; |
89 | goto error; |
90 | 90 | ||
91 | /* Send program pathname. */ |
91 | /* Send program pathname. */ |
92 | rc = loader_set_pathname(ldr, path); |
92 | rc = loader_set_pathname(ldr, path); |
93 | if (rc != EOK) |
93 | if (rc != EOK) |
94 | goto error; |
94 | goto error; |
95 | 95 | ||
96 | /* Send arguments. */ |
96 | /* Send arguments. */ |
97 | rc = loader_set_args(ldr, args); |
97 | rc = loader_set_args(ldr, args); |
98 | if (rc != EOK) |
98 | if (rc != EOK) |
99 | goto error; |
99 | goto error; |
100 | 100 | ||
101 | 101 | ||
102 | /* Send default files */ |
102 | /* Send default files */ |
103 | fdi_node_t *files[4]; |
103 | fdi_node_t *files[4]; |
104 | fdi_node_t stdin_node; |
104 | fdi_node_t stdin_node; |
105 | fdi_node_t stdout_node; |
105 | fdi_node_t stdout_node; |
106 | fdi_node_t stderr_node; |
106 | fdi_node_t stderr_node; |
107 | 107 | ||
108 | if ((stdin != NULL) && (fnode(stdin, &stdin_node) == EOK)) |
108 | if ((stdin != NULL) && (fnode(stdin, &stdin_node) == EOK)) |
109 | files[0] = &stdin_node; |
109 | files[0] = &stdin_node; |
110 | else |
110 | else |
111 | files[0] = NULL; |
111 | files[0] = NULL; |
112 | 112 | ||
113 | if ((stdout != NULL) && (fnode(stdout, &stdout_node) == EOK)) |
113 | if ((stdout != NULL) && (fnode(stdout, &stdout_node) == EOK)) |
114 | files[1] = &stdout_node; |
114 | files[1] = &stdout_node; |
115 | else |
115 | else |
116 | files[1] = NULL; |
116 | files[1] = NULL; |
117 | 117 | ||
118 | if ((stderr != NULL) && (fnode(stderr, &stderr_node) == EOK)) |
118 | if ((stderr != NULL) && (fnode(stderr, &stderr_node) == EOK)) |
119 | files[2] = &stderr_node; |
119 | files[2] = &stderr_node; |
120 | else |
120 | else |
121 | files[2] = NULL; |
121 | files[2] = NULL; |
122 | 122 | ||
123 | files[3] = NULL; |
123 | files[3] = NULL; |
124 | 124 | ||
125 | rc = loader_set_files(ldr, files); |
125 | rc = loader_set_files(ldr, files); |
126 | if (rc != EOK) |
126 | if (rc != EOK) |
127 | goto error; |
127 | goto error; |
128 | 128 | ||
129 | /* Load the program. */ |
129 | /* Load the program. */ |
130 | rc = loader_load_program(ldr); |
130 | rc = loader_load_program(ldr); |
131 | if (rc != EOK) |
131 | if (rc != EOK) |
132 | goto error; |
132 | goto error; |
133 | 133 | ||
134 | /* Run it. */ |
134 | /* Run it. */ |
135 | rc = loader_run(ldr); |
135 | rc = loader_run(ldr); |
136 | if (rc != EOK) |
136 | if (rc != EOK) |
137 | goto error; |
137 | goto error; |
138 | 138 | ||
139 | /* Success */ |
139 | /* Success */ |
140 | free(ldr); |
140 | free(ldr); |
141 | return task_id; |
141 | return task_id; |
142 | 142 | ||
143 | error: |
143 | error: |
144 | /* Error exit */ |
144 | /* Error exit */ |
145 | loader_abort(ldr); |
145 | loader_abort(ldr); |
146 | free(ldr); |
146 | free(ldr); |
147 | 147 | ||
148 | return 0; |
148 | return 0; |
149 | } |
149 | } |
150 | 150 | ||
151 | int task_wait(task_id_t id, int *retval) |
151 | int task_wait(task_id_t id, int *retval) |
152 | { |
152 | { |
153 | ipcarg_t rv; |
153 | ipcarg_t rv; |
154 | int rc; |
154 | int rc; |
155 | 155 | ||
156 | rc = (int) async_req_2_1(PHONE_NS, NS_TASK_WAIT, LOWER32(id), |
156 | rc = (int) async_req_2_1(PHONE_NS, NS_TASK_WAIT, LOWER32(id), |
157 | UPPER32(id), &rv); |
157 | UPPER32(id), &rv); |
158 | *retval = rv; |
158 | *retval = rv; |
159 | 159 | ||
160 | return rc; |
160 | return rc; |
161 | } |
161 | } |
162 | 162 | ||
163 | int task_retval(int val) |
163 | int task_retval(int val) |
164 | { |
164 | { |
165 | task_id_t id; |
- | |
166 | - | ||
167 | id = task_get_id(); |
- | |
168 | return (int) async_req_3_0(PHONE_NS, NS_RETVAL, LOWER32(id), |
165 | return (int) async_req_1_0(PHONE_NS, NS_RETVAL, val); |
169 | UPPER32(id), val); |
- | |
170 | } |
166 | } |
171 | 167 | ||
172 | /** @} |
168 | /** @} |
173 | */ |
169 | */ |
174 | 170 |