Release 6.1.9
This commit is contained in:
@@ -12,8 +12,8 @@
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** ThreadX Component */
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/** */
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/** ThreadX Component */
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/** */
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/** Byte Memory */
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/** */
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@@ -31,45 +31,47 @@
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#include "tx_byte_pool.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_byte_release PORTABLE C */
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_byte_release PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function returns previously allocated memory to its */
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/* associated memory byte pool. */
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/* */
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/* INPUT */
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/* */
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/* memory_ptr Pointer to allocated memory */
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/* */
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/* OUTPUT */
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/* */
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/* [TX_PTR_ERROR | TX_SUCCESS] Completion status */
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/* */
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/* CALLS */
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/* */
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/* _tx_thread_system_preempt_check Check for preemption */
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/* _tx_thread_system_resume Resume thread service */
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/* _tx_thread_system_ni_resume Non-interruptable resume thread */
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/* _tx_byte_pool_search Search the byte pool for memory */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* */
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/* This function returns previously allocated memory to its */
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/* associated memory byte pool. */
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/* */
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/* INPUT */
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/* */
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/* memory_ptr Pointer to allocated memory */
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/* */
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/* OUTPUT */
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/* */
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/* [TX_PTR_ERROR | TX_SUCCESS] Completion status */
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/* */
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/* CALLS */
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/* */
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/* _tx_thread_system_preempt_check Check for preemption */
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/* _tx_thread_system_resume Resume thread service */
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/* _tx_thread_system_ni_resume Non-interruptable resume thread */
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/* _tx_byte_pool_search Search the byte pool for memory */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 09-30-2020 William E. Lamie Initial Version 6.1 */
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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 Yuxin Zhou Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _tx_byte_release(VOID *memory_ptr)
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@@ -78,12 +80,12 @@ UINT _tx_byte_release(VOID *memory_ptr)
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TX_INTERRUPT_SAVE_AREA
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UINT status;
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TX_BYTE_POOL *pool_ptr;
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TX_THREAD *thread_ptr;
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UCHAR *work_ptr;
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TX_BYTE_POOL *pool_ptr;
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TX_THREAD *thread_ptr;
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UCHAR *work_ptr;
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UCHAR *temp_ptr;
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UCHAR *next_block_ptr;
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TX_THREAD *susp_thread_ptr;
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TX_THREAD *susp_thread_ptr;
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UINT suspended_count;
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TX_THREAD *next_thread;
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TX_THREAD *previous_thread;
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@@ -96,7 +98,7 @@ UCHAR **suspend_info_ptr;
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/* Default to successful status. */
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status = TX_SUCCESS;
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/* Set the pool pointer to NULL. */
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pool_ptr = TX_NULL;
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@@ -107,7 +109,7 @@ UCHAR **suspend_info_ptr;
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work_ptr = TX_VOID_TO_UCHAR_POINTER_CONVERT(memory_ptr);
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if (work_ptr != TX_NULL)
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{
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/* Back off the memory pointer to pickup its header. */
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work_ptr = TX_UCHAR_POINTER_SUB(work_ptr, ((sizeof(UCHAR *)) + (sizeof(ALIGN_TYPE))));
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@@ -125,20 +127,20 @@ UCHAR **suspend_info_ptr;
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/* See if we have a valid pool pointer. */
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if (pool_ptr == TX_NULL)
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{
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/* Return pointer error. */
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status = TX_PTR_ERROR;
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}
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else
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else
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{
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/* See if we have a valid pool. */
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if (pool_ptr -> tx_byte_pool_id != TX_BYTE_POOL_ID)
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{
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/* Return pointer error. */
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status = TX_PTR_ERROR;
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/* Reset the pool pointer is NULL. */
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pool_ptr = TX_NULL;
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}
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@@ -161,13 +163,13 @@ UCHAR **suspend_info_ptr;
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/* Determine if the pointer is valid. */
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if (pool_ptr == TX_NULL)
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{
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/* Restore interrupts. */
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TX_RESTORE
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}
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else
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{
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/* At this point, we know that the pointer is valid. */
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/* Pickup thread pointer. */
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@@ -199,7 +201,7 @@ UCHAR **suspend_info_ptr;
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/* Update the number of available bytes in the pool. */
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block_link_ptr = TX_UCHAR_TO_INDIRECT_UCHAR_POINTER_CONVERT(work_ptr);
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next_block_ptr = *block_link_ptr;
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pool_ptr -> tx_byte_pool_available =
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pool_ptr -> tx_byte_pool_available =
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pool_ptr -> tx_byte_pool_available + TX_UCHAR_POINTER_DIF(next_block_ptr, work_ptr);
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/* Determine if the free block is prior to current search pointer. */
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@@ -213,8 +215,8 @@ UCHAR **suspend_info_ptr;
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/* Determine if there are threads suspended on this byte pool. */
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if (pool_ptr -> tx_byte_pool_suspended_count != TX_NO_SUSPENSIONS)
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{
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/* Now examine the suspension list to find threads waiting for
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/* Now examine the suspension list to find threads waiting for
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memory. Maybe it is now available! */
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while (pool_ptr -> tx_byte_pool_suspended_count != TX_NO_SUSPENSIONS)
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{
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@@ -229,7 +231,7 @@ UCHAR **suspend_info_ptr;
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TX_RESTORE
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/* See if the request can be satisfied. */
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work_ptr = _tx_byte_pool_search(pool_ptr, memory_size);
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work_ptr = _tx_byte_pool_search(pool_ptr, memory_size);
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/* Optional processing extension. */
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TX_BYTE_RELEASE_EXTENSION
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@@ -243,7 +245,7 @@ UCHAR **suspend_info_ptr;
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/* If there is not enough memory, break this loop! */
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if (work_ptr == TX_NULL)
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{
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/* Break out of the loop. */
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break;
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}
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@@ -255,7 +257,7 @@ UCHAR **suspend_info_ptr;
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/* Also, makes sure the memory size is the same. */
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if (susp_thread_ptr -> tx_thread_suspend_info == memory_size)
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{
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/* Remove the suspended thread from the list. */
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/* Decrement the number of threads suspended. */
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@@ -286,8 +288,8 @@ UCHAR **suspend_info_ptr;
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previous_thread = susp_thread_ptr -> tx_thread_suspended_previous;
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next_thread -> tx_thread_suspended_previous = previous_thread;
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previous_thread -> tx_thread_suspended_next = next_thread;
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}
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}
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/* Prepare for resumption of the thread. */
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/* Clear cleanup routine to avoid timeout. */
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@@ -300,7 +302,7 @@ UCHAR **suspend_info_ptr;
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/* Clear the memory pointer to indicate that it was given to the suspended thread. */
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work_ptr = TX_NULL;
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/* Put return status into the thread control block. */
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susp_thread_ptr -> tx_thread_suspend_status = TX_SUCCESS;
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@@ -326,11 +328,11 @@ UCHAR **suspend_info_ptr;
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TX_DISABLE
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}
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}
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/* Determine if the memory was given to the suspended thread. */
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if (work_ptr != TX_NULL)
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{
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/* No, it wasn't given to the suspended thread. */
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/* Put the memory back on the available list since this thread is no longer
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@@ -343,19 +345,19 @@ UCHAR **suspend_info_ptr;
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/* Update the number of available bytes in the pool. */
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block_link_ptr = TX_UCHAR_TO_INDIRECT_UCHAR_POINTER_CONVERT(work_ptr);
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next_block_ptr = *block_link_ptr;
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pool_ptr -> tx_byte_pool_available =
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pool_ptr -> tx_byte_pool_available =
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pool_ptr -> tx_byte_pool_available + TX_UCHAR_POINTER_DIF(next_block_ptr, work_ptr);
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/* Determine if the current pointer is before the search pointer. */
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if (work_ptr < (pool_ptr -> tx_byte_pool_search))
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{
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{
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/* Yes, update the search pointer. */
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pool_ptr -> tx_byte_pool_search = work_ptr;
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}
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}
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}
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/* Restore interrupts. */
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TX_RESTORE
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@@ -364,7 +366,7 @@ UCHAR **suspend_info_ptr;
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}
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else
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{
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/* No, threads suspended, restore interrupts. */
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TX_RESTORE
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}
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