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| <h2 id="shell_task_init"><font color="F2853F" style="font-size:24pt"> shell_task_init</font></h2> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code>int shell_task_init(uint8_t prio, os_stack_t *stack, uint16_t stack_size, |
| int max_input_length); |
| </code></pre></div> |
| |
| <p>Initializes the shell package. This creates a task for shell, and registers few commands on its own (<em>echo</em>, <em>?</em>, for example). It also allocates memory for buffering console input.</p> |
| <h4 id="arguments">Arguments</h4> |
| <table> |
| <thead> |
| <tr> |
| <th>Arguments</th> |
| <th>Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td>prio</td> |
| <td>Priority of the shell task</td> |
| </tr> |
| <tr> |
| <td>stack</td> |
| <td>Pointer to shell tasks's stack</td> |
| </tr> |
| <tr> |
| <td>stack_size</td> |
| <td>Size of the aforementioned stack (in units of os_stack_t)</td> |
| </tr> |
| <tr> |
| <td>max_input_length</td> |
| <td>the maximum expected length of line for input</td> |
| </tr> |
| </tbody> |
| </table> |
| <h4 id="returned-values">Returned values</h4> |
| <p>Returns 0 on success; nonzero on failure.</p> |
| <h4 id="notes">Notes</h4> |
| <p>You can register commands before calling this, but only if OS has not been started.</p> |
| <h4 id="example">Example</h4> |
| <p>Here's an example of stand-alone code which allows the user to execute regression tests for sys/config package only.</p> |
| <div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code>#define SHELL_TASK_PRIO (3) |
| #define SHELL_MAX_INPUT_LEN (256) |
| #define SHELL_TASK_STACK_SIZE (OS_STACK_ALIGN(384)) |
| os_stack_t shell_stack[SHELL_TASK_STACK_SIZE]; |
| |
| int |
| main(int argc, char **argv) |
| { |
| .... |
| shell_task_init(SHELL_TASK_PRIO, shell_stack, SHELL_TASK_STACK_SIZE, |
| SHELL_MAX_INPUT_LEN); |
| .... |
| } |
| </code></pre></div> |
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