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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1175 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
| 3148 | svoboda | 3 | * Copyright (c) 2008 Jiri Svoboda |
| 1175 | jermar | 4 | * All rights reserved. |
| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * - Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * - Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * - The name of the author may not be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 1653 | cejka | 28 | */ |
| 29 | |||
| 1866 | jermar | 30 | /** @addtogroup libc |
| 1653 | cejka | 31 | * @{ |
| 32 | */ |
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| 33 | /** @file |
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| 1175 | jermar | 34 | */ |
| 35 | |||
| 36 | #include <task.h> |
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| 3004 | svoboda | 37 | #include <ipc/ipc.h> |
| 3148 | svoboda | 38 | #include <ipc/loader.h> |
| 3102 | svoboda | 39 | #include <libc.h> |
| 3148 | svoboda | 40 | #include <string.h> |
| 3004 | svoboda | 41 | #include <async.h> |
| 42 | #include <errno.h> |
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| 1175 | jermar | 43 | |
| 1228 | jermar | 44 | task_id_t task_get_id(void) |
| 1175 | jermar | 45 | { |
| 46 | task_id_t task_id; |
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| 47 | |||
| 1228 | jermar | 48 | (void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id); |
| 1175 | jermar | 49 | |
| 50 | return task_id; |
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| 51 | } |
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| 1653 | cejka | 52 | |
| 3004 | svoboda | 53 | static int task_spawn_loader(void) |
| 54 | { |
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| 55 | int phone_id, rc; |
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| 56 | |||
| 57 | rc = __SYSCALL1(SYS_TASK_SPAWN, (sysarg_t) &phone_id); |
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| 58 | if (rc != 0) |
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| 59 | return rc; |
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| 60 | |||
| 61 | return phone_id; |
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| 62 | } |
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| 3148 | svoboda | 63 | |
| 64 | /** Create a new task by running an executable from VFS. |
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| 65 | * |
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| 66 | * @param path pathname of the binary to execute |
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| 67 | * @param argv command-line arguments |
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| 68 | * @return ID of the newly created task or zero on error. |
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| 69 | */ |
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| 3004 | svoboda | 70 | task_id_t task_spawn(const char *path, const char *argv[]) |
| 71 | { |
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| 72 | int phone_id; |
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| 73 | ipc_call_t answer; |
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| 74 | aid_t req; |
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| 75 | int rc; |
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| 3148 | svoboda | 76 | |
| 77 | /* Spawn a program loader */ |
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| 3004 | svoboda | 78 | phone_id = task_spawn_loader(); |
| 79 | if (phone_id < 0) return 0; |
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| 80 | |||
| 3148 | svoboda | 81 | /* |
| 82 | * Say hello so that the loader knows the incoming connection's |
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| 83 | * phone hash. |
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| 84 | */ |
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| 85 | rc = async_req_0_0(phone_id, LOADER_HELLO); |
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| 86 | if (rc != EOK) return 0; |
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| 3004 | svoboda | 87 | |
| 3148 | svoboda | 88 | /* Send program pathname */ |
| 89 | req = async_send_0(phone_id, LOADER_SET_PATHNAME, &answer); |
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| 3004 | svoboda | 90 | rc = ipc_data_write_start(phone_id, (void *)path, strlen(path)); |
| 91 | if (rc != EOK) { |
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| 3148 | svoboda | 92 | async_wait_for(req, NULL); |
| 3004 | svoboda | 93 | return 1; |
| 94 | } |
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| 95 | |||
| 3148 | svoboda | 96 | async_wait_for(req, &rc); |
| 3004 | svoboda | 97 | if (rc != EOK) return 0; |
| 98 | |||
| 3148 | svoboda | 99 | /* Request loader to start the program */ |
| 100 | rc = async_req_0_0(phone_id, LOADER_RUN); |
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| 101 | if (rc != EOK) return 0; |
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| 3004 | svoboda | 102 | |
| 3148 | svoboda | 103 | ipc_hangup(phone_id); |
| 104 | |||
| 3004 | svoboda | 105 | return 1; |
| 106 | } |
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| 107 | |||
| 1866 | jermar | 108 | /** @} |
| 1653 | cejka | 109 | */ |