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Merge branch 'docs/freertos_words_to_bytes' into 'master'

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FreeRTOS: Update API reference from words to bytes

See merge request idf/esp-idf!3453
This commit is contained in:
Angus Gratton 2018-10-17 16:41:28 +08:00
parent d57132b212 6f91640690
commit 222a7118a9
1 changed files with 12 additions and 21 deletions
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33
components/freertos/include/freertos/task.h
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@ -308,9 +308,7 @@ is used in assert() statements. */
* is 16.
*
* @param usStackDepth The size of the task stack specified as the number of
* variables the stack can hold - not the number of bytes. For example, if
* the stack is 16 bits wide and usStackDepth is defined as 100, 200 bytes
* will be allocated for stack storage.
* bytes. Note that this differs from vanilla FreeRTOS.
*
* @param pvParameters Pointer that will be used as the parameter for the task
* being created.
@ -375,9 +373,7 @@ is used in assert() statements. */
* is 16.
*
* @param usStackDepth The size of the task stack specified as the number of
* variables the stack can hold - not the number of bytes. For example, if
* the stack is 16 bits wide and usStackDepth is defined as 100, 200 bytes
* will be allocated for stack storage.
* bytes. Note that this differs from vanilla FreeRTOS.
*
* @param pvParameters Pointer that will be used as the parameter for the task
* being created.
@ -463,9 +459,7 @@ is used in assert() statements. */
* configMAX_TASK_NAME_LEN in FreeRTOSConfig.h.
*
* @param ulStackDepth The size of the task stack specified as the number of
* variables the stack can hold - not the number of bytes. For example, if
* the stack is 32-bits wide and ulStackDepth is defined as 100 then 400 bytes
* will be allocated for stack storage.
* bytes. Note that this differs from vanilla FreeRTOS.
*
* @param pvParameters Pointer that will be used as the parameter for the task
* being created.
@ -525,9 +519,7 @@ is used in assert() statements. */
* configMAX_TASK_NAME_LEN in FreeRTOSConfig.h.
*
* @param ulStackDepth The size of the task stack specified as the number of
* variables the stack can hold - not the number of bytes. For example, if
* the stack is 32-bits wide and ulStackDepth is defined as 100 then 400 bytes
* will be allocated for stack storage.
* bytes. Note that this differs from vanilla FreeRTOS.
*
* @param pvParameters Pointer that will be used as the parameter for the task
* being created.
@ -554,9 +546,8 @@ is used in assert() statements. */
* @code{c}
*
* // Dimensions the buffer that the task being created will use as its stack.
* // NOTE: This is the number of words the stack will hold, not the number of
* // bytes. For example, if each stack item is 32-bits, and this is set to 100,
* // then 400 bytes (100 * 32-bits) will be allocated.
* // NOTE: This is the number of bytes the stack will hold, not the number of
* // words as found in vanilla FreeRTOS.
* #define STACK_SIZE 200
*
* // Structure that will hold the TCB of the task being created.
@ -589,7 +580,7 @@ is used in assert() statements. */
* xHandle = xTaskCreateStatic(
* vTaskCode, // Function that implements the task.
* "NAME", // Text name for the task.
* STACK_SIZE, // Stack size in words, not bytes.
* STACK_SIZE, // Stack size in bytes, not words.
* ( void * ) 1, // Parameter passed into the task.
* tskIDLE_PRIORITY,// Priority at which the task is created.
* xStack, // Array to use as the task's stack.
@ -645,7 +636,7 @@ is used in assert() statements. */
* {
* vATask, // pvTaskCode - the function that implements the task.
* "ATask", // pcName - just a text name for the task to assist debugging.
* 100, // usStackDepth - the stack size DEFINED IN WORDS.
* 100, // usStackDepth - the stack size DEFINED IN BYTES.
* NULL, // pvParameters - passed into the task function as the function parameters.
* ( 1UL | portPRIVILEGE_BIT ),// uxPriority - task priority, set the portPRIVILEGE_BIT if the task should run in a privileged state.
* cStackBuffer,// puxStackBuffer - the buffer to be used as the task stack.
@ -1342,15 +1333,15 @@ char *pcTaskGetTaskName( TaskHandle_t xTaskToQuery ) PRIVILEGED_FUNCTION; /*lint
* INCLUDE_uxTaskGetStackHighWaterMark must be set to 1 in FreeRTOSConfig.h for
* this function to be available.
*
* High water mark is the minimum free stack space there has been (in words,
* so on a 32 bit machine a value of 1 means 4 bytes) since the task started.
* High water mark is the minimum free stack space there has been (in bytes
* rather than words as found in vanilla FreeRTOS) since the task started.
* The smaller the returned number the closer the task has come to overflowing its stack.
*
* @param xTask Handle of the task associated with the stack to be checked.
* Set xTask to NULL to check the stack of the calling task.
*
* @return The smallest amount of free stack space there has been (in words, so
* actual spaces on the stack rather than bytes) since the task referenced by
* @return The smallest amount of free stack space there has been (in bytes
* rather than words as found in vanilla FreeRTOS) since the task referenced by
* xTask was created.
*/
UBaseType_t uxTaskGetStackHighWaterMark( TaskHandle_t xTask ) PRIVILEGED_FUNCTION;