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122 lines
4.4 KiB
122 lines
4.4 KiB
/************************************************************************ |
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* sched/sched_addblocked.c |
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* |
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* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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************************************************************************/ |
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/************************************************************************ |
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* Included Files |
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************************************************************************/ |
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#include <nuttx/config.h> |
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#include <queue.h> |
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#include <assert.h> |
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#include "os_internal.h" |
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/************************************************************************ |
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* Definitions |
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************************************************************************/ |
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/************************************************************************ |
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* Private Type Declarations |
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************************************************************************/ |
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/************************************************************************ |
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* Global Variables |
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************************************************************************/ |
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/************************************************************************ |
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* Private Variables |
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************************************************************************/ |
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/************************************************************************ |
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* Private Function Prototypes |
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************************************************************************/ |
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/************************************************************************ |
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* Public Functions |
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************************************************************************/ |
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/************************************************************************ |
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* Name: sched_addblocked |
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* |
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* Description: |
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* This function adds a TCB to one of the blocked state task lists as |
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* inferred from task_state. |
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* |
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* Inputs: |
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* btcb - Points to the TCB that is blocked |
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* task_state - identifies the state of the blocked task |
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* |
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* Return Value: |
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* None |
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* |
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* Assumptions: |
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* - The caller has established a critical section before |
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* calling this function. |
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* |
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************************************************************************/ |
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void sched_addblocked(FAR _TCB *btcb, tstate_t task_state) |
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{ |
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/* Make sure that we received a valid blocked state */ |
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ASSERT(task_state >= FIRST_BLOCKED_STATE && |
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task_state <= LAST_BLOCKED_STATE); |
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/* Add the TCB to the blocked task list associated with this state. |
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* First, determine if the task is to be added to a prioritized task |
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* list |
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*/ |
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if (g_tasklisttable[task_state].prioritized) |
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{ |
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/* Add the task to a prioritized list */ |
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sched_addprioritized(btcb, |
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(FAR dq_queue_t*)g_tasklisttable[task_state].list); |
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} |
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else |
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{ |
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/* Add the task to a non-prioritized list */ |
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dq_addlast((FAR dq_entry_t*)btcb, |
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(FAR dq_queue_t*)g_tasklisttable[task_state].list); |
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} |
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/* Make sure the TCB's state corresponds to the list */ |
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btcb->task_state = task_state; |
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} |
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