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Diffstat (limited to 'spec/rtems/task/if/create.yml')
| -rw-r--r-- | spec/rtems/task/if/create.yml | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/spec/rtems/task/if/create.yml b/spec/rtems/task/if/create.yml new file mode 100644 index 00000000..7baea120 --- /dev/null +++ b/spec/rtems/task/if/create.yml @@ -0,0 +1,101 @@ +SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause +brief: | + Creates a task object. +copyrights: +- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) +- Copyright (C) 1988, 2017 On-Line Applications Research Corporation (OAR) +definition: + default: + body: null + params: + - ${../../type/if/name:/name} ${.:/params[0]/name} + - ${priority:/name} ${.:/params[1]/name} + - ${/c/if/size_t:/name} ${.:/params[2]/name} + - ${../../mode/if/mode:/name} ${.:/params[3]/name} + - ${../../attr/if/attribute:/name} ${.:/params[4]/name} + - ${../../type/if/id:/name} *${.:/params[5]/name} + return: ${../../status/if/code:/name} + variants: [] +description: | + This directive creates a task which resides on the local node. It allocates + and initializes a TCB, a stack, and an optional floating point context area. + The mode parameter contains values which sets the task’s initial execution + mode. The RTEMS_FLOATING_POINT attribute should be specified if the created + task is to use a numeric coprocessor. For performance reasons, it is + recommended that tasks not using the numeric coprocessor should specify the + RTEMS_NO_FLOATING_POINT attribute. If the RTEMS_GLOBAL attribute is + specified, the task can be accessed from remote nodes. The task id, returned + in id, is used in other task related directives to access the task. When + created, a task is placed in the dormant state and can only be made ready to + execute using the directive rtems_task_start(). +enabled-by: true +interface-type: function +links: +- role: interface-placement + uid: header +- role: interface-ingroup + uid: group +name: rtems_task_create +notes: null +params: +- description: is the user-defined task name. + dir: null + name: name +- description: is the initial task priority. + dir: null + name: initial_priority +- description: is the task stack size in bytes. + dir: null + name: stack_size +- description: is the initial task mode. + dir: null + name: initial_modes +- description: is the task attribute set. + dir: null + name: attribute_set +- description: | + is the pointer to an object identifier variable. The object identifier of + the new task will be stored in this variable, in case of a successful + operation. + dir: out + name: id +return: + return: null + return-values: + - description: | + The requested operation was successful. + value: ${../../status/if/successful:/name} + - description: | + The ${.:/params[5]/name} parameter was ${/c/if/null:/name}. + value: ${../../status/if/invalid-address:/name} + - description: | + The task name was invalid. + value: ${../../status/if/invalid-name:/name} + - description: | + The initial task priority was invalid. + value: ${../../status/if/invalid-priority:/name} + - description: | + The multiprocessing support was not configured. + value: ${../../status/if/mp-not-configured:/name} + - description: | + There was no inactive task object available to create a new task. + value: ${../../status/if/too-many:/name} + - description: | + In multiprocessing configurations, there was no inactive global object + available to create a new global task. + value: ${../../status/if/too-many:/name} + - description: | + There was not enough memory to allocate the task storage area. The task + storage area contains the task stack, the thread-local storage, and the + floating point context. + value: ${../../status/if/unsatisfied:/name} + - description: | + One of the task create extensions failed to create the new task. + value: ${../../status/if/unsatisfied:/name} + - description: | + In SMP configurations, the non-preemption mode was not supported. + value: ${../../status/if/unsatisfied:/name} + - description: | + In SMP configurations, the interrupt level mode was not supported. + value: ${../../status/if/unsatisfied:/name} +type: interface |