| 0,0 → 1,106 |
|---|
| /* |
| * Copyright (c) 2007 Jan Hudecek |
| * Copyright (c) 2006 Jakub Jermar |
| * 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 genericddi |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef KERN_TASKLET_H_ |
| #define KERN_TASKLET_H_ |
| |
| #include <arch/types.h> |
| #include <proc/task.h> |
| |
| |
| |
| /** Structure describing a tasklet*/ |
| typedef struct tasklet_descriptor { |
| /** callback to call */ |
| void (*func)(void* data); |
| /** parameters to pass to func */ |
| void* data; |
| /** state of the tasklet one of tasklet_state_enum */ |
| uint32_t state; |
| struct tasklet_descriptor *next; |
| } tasklet_descriptor_t; |
| |
| /** Initializes tasklets - except for the tasklet thread */ |
| void tasklet_init(void); |
| |
| /** |
| * Creates and runs the tasklet thread |
| * |
| * @param kernel_task Pointer to the kernel task - for create_thread |
| */ |
| void tasklet_run_tasklet_thread(task_t * kernel_task); |
| |
| /** Thread which keeps executing scheduled enabled tasklets |
| * @param data not used |
| */ |
| void tasklet_thread(void* data); |
| |
| |
| /** Executes scheduled enabled tasklets */ |
| void tasklet_do(void); |
| |
| /** Initializes tasklet structure |
| * @param func tasklet callback function to be called |
| * @param data pointer to be passed to the tasklet function |
| */ |
| tasklet_descriptor_t* tasklet_register(void (*func)(void* data), void* data); |
| |
| /** Schedules the tasklet for execution on current CPU |
| * @param t tasklet to be scheduled |
| */ |
| void tasklet_schedule(tasklet_descriptor_t* t); |
| |
| /** Tasklet will not be run, even if scheduled |
| * @param t tasklet to be disabled |
| */ |
| void tasklet_disable(tasklet_descriptor_t* t); |
| |
| /** Tasklet will be run if scheduled |
| * @param t tasklet to be enabled |
| */ |
| void tasklet_enable(tasklet_descriptor_t* t); |
| |
| /** Frees the tasklet structure when no longer needed. The function doesn't provide |
| * any synchronization, the caller must be sure, the tasklet is not scheduled. |
| * |
| * @param tasklet to be freed |
| */ |
| void tasklet_free(tasklet_descriptor_t* t); |
| |
| |
| #endif |
| |
| /** @} |
| */ |