diff options
| author | Yuxin Zhou <[email protected]> | 2021-10-14 00:51:26 +0000 |
|---|---|---|
| committer | Yuxin Zhou <[email protected]> | 2021-10-14 00:51:26 +0000 |
| commit | 1af8404c54f9c8d3caa2ac3523c2a5f014aecb1c (patch) | |
| tree | 93e4f4d64ec8c21c01b77f19b8e7326e85227e3d /common_smp/src/tx_queue_send.c | |
| parent | 215df45d4b59d4ce8606a88f566d1d426e64a84c (diff) | |
Release 6.1.9
Diffstat (limited to 'common_smp/src/tx_queue_send.c')
| -rw-r--r-- | common_smp/src/tx_queue_send.c | 106 |
1 files changed, 54 insertions, 52 deletions
diff --git a/common_smp/src/tx_queue_send.c b/common_smp/src/tx_queue_send.c index 8163350a..7cbb9b73 100644 --- a/common_smp/src/tx_queue_send.c +++ b/common_smp/src/tx_queue_send.c @@ -12,8 +12,8 @@ /**************************************************************************/ /**************************************************************************/ -/** */ -/** ThreadX Component */ +/** */ +/** ThreadX Component */ /** */ /** Queue */ /** */ @@ -31,57 +31,59 @@ #include "tx_queue.h" -/**************************************************************************/ -/* */ -/* FUNCTION RELEASE */ -/* */ -/* _tx_queue_send PORTABLE C */ +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _tx_queue_send PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* William E. Lamie, Microsoft Corporation */ /* */ /* DESCRIPTION */ -/* */ -/* This function places a message into the specified queue. If there */ -/* is no room in the queue, this function waits according to the */ -/* option specified. */ -/* */ -/* INPUT */ -/* */ -/* queue_ptr Pointer to queue control block */ -/* source_ptr Pointer to message source */ -/* wait_option Suspension option */ -/* */ -/* OUTPUT */ -/* */ -/* status Completion status */ -/* */ -/* CALLS */ -/* */ -/* _tx_thread_system_resume Resume thread routine */ -/* _tx_thread_system_ni_resume Non-interruptable resume thread */ -/* _tx_thread_system_suspend Suspend thread routine */ -/* _tx_thread_system_ni_suspend Non-interruptable suspend thread */ -/* */ -/* CALLED BY */ -/* */ -/* Application Code */ -/* */ -/* RELEASE HISTORY */ -/* */ +/* */ +/* This function places a message into the specified queue. If there */ +/* is no room in the queue, this function waits according to the */ +/* option specified. */ +/* */ +/* INPUT */ +/* */ +/* queue_ptr Pointer to queue control block */ +/* source_ptr Pointer to message source */ +/* wait_option Suspension option */ +/* */ +/* OUTPUT */ +/* */ +/* status Completion status */ +/* */ +/* CALLS */ +/* */ +/* _tx_thread_system_resume Resume thread routine */ +/* _tx_thread_system_ni_resume Non-interruptable resume thread */ +/* _tx_thread_system_suspend Suspend thread routine */ +/* _tx_thread_system_ni_suspend Non-interruptable suspend thread */ +/* */ +/* CALLED BY */ +/* */ +/* Application Code */ +/* */ +/* RELEASE HISTORY */ +/* */ /* DATE NAME DESCRIPTION */ /* */ -/* 09-30-2020 William E. Lamie Initial Version 6.1 */ +/* 05-19-2020 William E. Lamie Initial Version 6.0 */ +/* 09-30-2020 Yuxin Zhou Modified comment(s), */ +/* resulting in version 6.1 */ /* */ /**************************************************************************/ UINT _tx_queue_send(TX_QUEUE *queue_ptr, VOID *source_ptr, ULONG wait_option) { TX_INTERRUPT_SAVE_AREA - -TX_THREAD *thread_ptr; -ULONG *source; + +TX_THREAD *thread_ptr; +ULONG *source; ULONG *destination; UINT size; UINT suspended_count; @@ -126,9 +128,9 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); /* Determine if there are suspended on this queue. */ if (suspended_count == TX_NO_SUSPENSIONS) { - + /* No suspended threads, simply place the message in the queue. */ - + /* Reduce the amount of available storage. */ queue_ptr -> tx_queue_available_storage--; @@ -138,9 +140,9 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); /* Setup source and destination pointers. */ source = TX_VOID_TO_ULONG_POINTER_CONVERT(source_ptr); destination = queue_ptr -> tx_queue_write; - size = queue_ptr -> tx_queue_message_size; + size = queue_ptr -> tx_queue_message_size; - /* Copy message. Note that the source and destination pointers are + /* Copy message. Note that the source and destination pointers are incremented by the macro. */ TX_QUEUE_MESSAGE_COPY(source, destination, size) @@ -180,7 +182,7 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); else { - /* There is a thread suspended on an empty queue. Simply + /* There is a thread suspended on an empty queue. Simply copy the message to the suspended thread's destination pointer. */ @@ -213,8 +215,8 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); previous_thread = thread_ptr -> tx_thread_suspended_previous; next_thread -> tx_thread_suspended_previous = previous_thread; previous_thread -> tx_thread_suspended_next = next_thread; - } - + } + /* Decrement the suspension count. */ queue_ptr -> tx_queue_suspended_count = suspended_count; @@ -226,14 +228,14 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); /* Setup source and destination pointers. */ source = TX_VOID_TO_ULONG_POINTER_CONVERT(source_ptr); destination = TX_VOID_TO_ULONG_POINTER_CONVERT(thread_ptr -> tx_thread_additional_suspend_info); - size = queue_ptr -> tx_queue_message_size; + size = queue_ptr -> tx_queue_message_size; - /* Copy message. Note that the source and destination pointers are + /* Copy message. Note that the source and destination pointers are incremented by the macro. */ TX_QUEUE_MESSAGE_COPY(source, destination, size) /* Put return status into the thread control block. */ - thread_ptr -> tx_thread_suspend_status = TX_SUCCESS; + thread_ptr -> tx_thread_suspend_status = TX_SUCCESS; #ifndef TX_DISABLE_NOTIFY_CALLBACKS @@ -264,7 +266,7 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); /* Determine if a notify callback is required. */ if (queue_send_notify != TX_NULL) - { + { /* Call application queue send notification. */ (queue_send_notify)(queue_ptr); @@ -272,7 +274,7 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); #endif } } - + /* At this point, the queue is full. Determine if suspension is requested. */ else if (wait_option != TX_NO_WAIT) { @@ -300,7 +302,7 @@ VOID (*queue_send_notify)(struct TX_QUEUE_STRUCT *notify_queue_ptr); /* Increment the number of full suspensions on this queue. */ queue_ptr -> tx_queue_performance_full_suspension_count++; #endif - + /* Pickup thread pointer. */ TX_THREAD_GET_CURRENT(thread_ptr) |
