2 * Amazon FreeRTOS POSIX V1.1.0
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3 * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://aws.amazon.com/freertos
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23 * http://www.FreeRTOS.org
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28 * @brief Execution scheduling.
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30 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sched.h.html
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33 #ifndef _FREERTOS_POSIX_SCHED_H_
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34 #define _FREERTOS_POSIX_SCHED_H_
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37 * @name Scheduling Policies
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40 #define SCHED_OTHER 0 /**< Another scheduling policy. */
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44 * @brief Scheduling parameters required for implementation of each supported
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45 * scheduling policy.
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49 int sched_priority; /**< Process or thread execution scheduling priority. */
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53 * @brief Get priority limit (max).
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55 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_max.html
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57 * @note policy is ignored.
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59 * @return the maximum priority value (0-based) system configuration allows.
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61 * e.g. if configMAX_PRIORITIES == 7, this function returns (configMAX_PRIORITIES - 1).
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62 * configMAX_PRIORITIES is configured in application FreeRTOSConfig.h file.
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64 int sched_get_priority_max( int policy );
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67 * @brief Get priority limit (min).
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69 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_min.html
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71 * @note policy is ignored.
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73 int sched_get_priority_min( int policy );
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76 * @brief Yield the processor.
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78 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_yield.html
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80 * @retval 0 - Upon successful completion
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82 int sched_yield( void );
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84 #endif /* ifndef _FREERTOS_POSIX_SCHED_H_ */
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