0,0 → 1,170 |
/* |
* Copyright (c) 2006 Jakub Jermar |
* Copyright (c) 2008 Jiri Svoboda |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup libc |
* @{ |
*/ |
/** @file |
*/ |
|
#include <task.h> |
#include <libc.h> |
#include <stdlib.h> |
#include <errno.h> |
#include <loader/loader.h> |
#include <string.h> |
#include <ipc/ns.h> |
#include <macros.h> |
#include <async.h> |
|
task_id_t task_get_id(void) |
{ |
task_id_t task_id; |
(void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id); |
|
return task_id; |
} |
|
/** Set the task name. |
* |
* @param name The new name, typically the command used to execute the |
* program. |
* |
* @return Zero on success or negative error code. |
* |
*/ |
int task_set_name(const char *name) |
{ |
return __SYSCALL2(SYS_TASK_SET_NAME, (sysarg_t) name, str_size(name)); |
} |
|
/** Create a new task by running an executable from the filesystem. |
* |
* This is really just a convenience wrapper over the more complicated |
* loader API. |
* |
* @param path pathname of the binary to execute |
* @param argv command-line arguments |
* |
* @return ID of the newly created task or zero on error. |
* |
*/ |
task_id_t task_spawn(const char *path, char *const args[]) |
{ |
/* Connect to a program loader. */ |
loader_t *ldr = loader_connect(); |
if (ldr == NULL) |
return 0; |
|
/* Get task ID. */ |
task_id_t task_id; |
int rc = loader_get_task_id(ldr, &task_id); |
if (rc != EOK) |
goto error; |
|
/* Send program pathname. */ |
rc = loader_set_pathname(ldr, path); |
if (rc != EOK) |
goto error; |
|
/* Send arguments. */ |
rc = loader_set_args(ldr, args); |
if (rc != EOK) |
goto error; |
|
|
/* Send default files */ |
fdi_node_t *files[4]; |
fdi_node_t stdin_node; |
fdi_node_t stdout_node; |
fdi_node_t stderr_node; |
|
if ((stdin != NULL) && (fnode(stdin, &stdin_node) == EOK)) |
files[0] = &stdin_node; |
else |
files[0] = NULL; |
|
if ((stdout != NULL) && (fnode(stdout, &stdout_node) == EOK)) |
files[1] = &stdout_node; |
else |
files[1] = NULL; |
|
if ((stderr != NULL) && (fnode(stderr, &stderr_node) == EOK)) |
files[2] = &stderr_node; |
else |
files[2] = NULL; |
|
files[3] = NULL; |
|
rc = loader_set_files(ldr, files); |
if (rc != EOK) |
goto error; |
|
/* Load the program. */ |
rc = loader_load_program(ldr); |
if (rc != EOK) |
goto error; |
|
/* Run it. */ |
rc = loader_run(ldr); |
if (rc != EOK) |
goto error; |
|
/* Success */ |
free(ldr); |
return task_id; |
|
error: |
/* Error exit */ |
loader_abort(ldr); |
free(ldr); |
|
return 0; |
} |
|
int task_wait(task_id_t id, task_exit_t *texit, int *retval) |
{ |
ipcarg_t te, rv; |
int rc; |
|
rc = (int) async_req_2_2(PHONE_NS, NS_TASK_WAIT, LOWER32(id), |
UPPER32(id), &te, &rv); |
*texit = te; |
*retval = rv; |
|
return rc; |
} |
|
int task_retval(int val) |
{ |
return (int) async_req_1_0(PHONE_NS, NS_RETVAL, val); |
} |
|
/** @} |
*/ |