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 29 
 
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/** @addtogroup libc
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/** @addtogroup libc
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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 */
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 */
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 35 
 
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#include <task.h>
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#include <task.h>
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#include <libc.h>
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#include <libc.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <errno.h>
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#include <loader/loader.h>
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#include <loader/loader.h>
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#include <string.h>
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#include <string.h>
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 42 
#include <ipc/ns.h>
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 43 
#include <macros.h>
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#include <async.h>
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 45 
 
43 
task_id_t task_get_id(void)
 46 
task_id_t task_get_id(void)
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{
 47 
{
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    task_id_t task_id;
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    task_id_t task_id;
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 - 
 
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    (void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id);
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    (void) __SYSCALL1(SYS_TASK_GET_ID, (sysarg_t) &task_id);
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 50 
   
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    return task_id;
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    return task_id;
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}
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}
51 
 
 53 
 
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/** Set the task name.
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/** Set the task name.
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 *
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 *
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 * @param name  The new name, typically the command used to execute the
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 * @param name The new name, typically the command used to execute the
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 *      program.
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 *             program.
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 *
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 * @return  Zero on success or negative error code.
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 * @return Zero on success or negative error code.
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 *
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 */
 61 
 */
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int task_set_name(const char *name)
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int task_set_name(const char *name)
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{
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{
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    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));
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}
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}
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63 
/** Create a new task by running an executable from the filesystem.
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/** Create a new task by running an executable from the filesystem.
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 *
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 *
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 * This is really just a convenience wrapper over the more complicated
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 * This is really just a convenience wrapper over the more complicated
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 * loader API.
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 * loader API.
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 *
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 *
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 * @param path  pathname of the binary to execute
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 * @param path pathname of the binary to execute
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 * @param argv  command-line arguments
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 * @param argv command-line arguments
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 *
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 * @return  ID of the newly created task or zero on error.
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 * @return ID of the newly created task or zero on error.
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 76 
 *
71 
 */
 77 
 */
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task_id_t task_spawn(const char *path, char *const argv[])
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task_id_t task_spawn(const char *path, char *const args[])
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{
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{
74 
    loader_t *ldr;
 - 
 
75 
    task_id_t task_id;
 - 
 
76 
    int rc;
 - 
 
77 
 
 - 
 
78 
    /* Connect to a program loader. */
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    /* Connect to a program loader. */
79 
    ldr = loader_connect();
 81 
    loader_t *ldr = loader_connect();
80 
    if (ldr == NULL)
 82 
    if (ldr == NULL)
81 
        return 0;
 83 
        return 0;
82 
 
 84 
   
83 
    /* Get task ID. */
 85 
    /* Get task ID. */
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 86 
    task_id_t task_id;
84 
    rc = loader_get_task_id(ldr, &task_id);
 87 
    int rc = loader_get_task_id(ldr, &task_id);
85 
    if (rc != EOK)
 88 
    if (rc != EOK)
86 
        goto error;
 89 
        goto error;
87 
 
 90 
   
88 
    /* Send program pathname. */
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    /* Send program pathname. */
89 
    rc = loader_set_pathname(ldr, path);
 92 
    rc = loader_set_pathname(ldr, path);
90 
    if (rc != EOK)
 93 
    if (rc != EOK)
91 
        goto error;
 94 
        goto error;
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 95 
   
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    /* Send arguments. */
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    /* Send arguments. */
94 
    rc = loader_set_args(ldr, argv);
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    rc = loader_set_args(ldr, args);
95 
    if (rc != EOK)
 98 
    if (rc != EOK)
96 
        goto error;
 99 
        goto error;
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 100 
   
97 
 
 101 
   
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 102 
    /* Send default files */
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 103 
    fs_node_t *files[4];
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 104 
    fs_node_t stdin_node;
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 105 
    fs_node_t stdout_node;
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 106 
    fs_node_t stderr_node;
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 107 
   
- 
 
 108 
    if ((stdin != NULL) && (stdin != &stdin_null)) {
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 109 
        fnode(stdin, &stdin_node);
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 110 
        files[0] = &stdin_node;
- 
 
 111 
    } else
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 112 
        files[0] = NULL;
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 113 
   
- 
 
 114 
    if ((stdout != NULL) && (stdout != &stdout_klog)) {
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 115 
        fnode(stdout, &stdout_node);
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 116 
        files[1] = &stdout_node;
- 
 
 117 
    } else
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 118 
        files[1] = NULL;
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 119 
   
- 
 
 120 
    if ((stderr != NULL) && (stderr != &stdout_klog)) {
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 121 
        fnode(stderr, &stderr_node);
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        files[2] = &stderr_node;
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 123 
    } else
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 124 
        files[2] = NULL;
- 
 
 125 
   
- 
 
 126 
    files[3] = NULL;
- 
 
 127 
   
- 
 
 128 
    rc = loader_set_files(ldr, files);
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 129 
    if (rc != EOK)
- 
 
 130 
        goto error;
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 131 
   
98 
    /* Load the program. */
 132 
    /* Load the program. */
99 
    rc = loader_load_program(ldr);
 133 
    rc = loader_load_program(ldr);
100 
    if (rc != EOK)
 134 
    if (rc != EOK)
101 
        goto error;
 135 
        goto error;
102 
 
 136 
   
103 
    /* Run it. */
 137 
    /* Run it. */
104 
    rc = loader_run(ldr);
 138 
    rc = loader_run(ldr);
105 
    if (rc != EOK)
 139 
    if (rc != EOK)
106 
        goto error;
 140 
        goto error;
107 
 
 141 
   
108 
    /* Success */
 142 
    /* Success */
109 
 
 - 
 
110 
    free(ldr);
 143 
    free(ldr);
111 
    return task_id;
 144 
    return task_id;
112 
 
 145 
   
113 
    /* Error exit */
 - 
 
114 
error:
 146 
error:
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 147 
    /* Error exit */
115 
    loader_abort(ldr);
 148 
    loader_abort(ldr);
116 
    free(ldr);
 149 
    free(ldr);
117 
 
 150 
   
118 
    return 0;
 151 
    return 0;
119 
}
 152 
}
120 
 
 153 
 
- 
 
 154 
int task_wait(task_id_t id)
- 
 
 155 
{
- 
 
 156 
    return (int) async_req_2_0(PHONE_NS, NS_TASK_WAIT, LOWER32(id), UPPER32(id));
- 
 
 157 
}
- 
 
 158 
 
121 
/** @}
 159 
/** @}
122 
 */
 160 
 */