Initial commit

1 files changed, 141 insertions, 0 deletions

diff --git a/common/src/tx_event_flags_create.c b/common/src/tx_event_flags_create.c
new file mode 100644
index 00000000..aa0e7269
--- /dev/null
+++ b/common/src/tx_event_flags_create.c
@@ -0,0 +1,141 @@
+/**************************************************************************/
+/*                                                                        */
+/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
+/*                                                                        */
+/*       This software is licensed under the Microsoft Software License   */
+/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
+/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
+/*       and in the root directory of this software.                      */
+/*                                                                        */
+/**************************************************************************/
+
+
+/**************************************************************************/
+/**************************************************************************/
+/**                                                                       */
+/** ThreadX Component                                                     */
+/**                                                                       */
+/**   Event Flags                                                         */
+/**                                                                       */
+/**************************************************************************/
+/**************************************************************************/
+
+#define TX_SOURCE_CODE
+
+
+/* Include necessary system files.  */
+
+#include "tx_api.h"
+#include "tx_trace.h"
+#include "tx_event_flags.h"
+
+
+/**************************************************************************/
+/*                                                                        */
+/*  FUNCTION                                               RELEASE        */
+/*                                                                        */
+/*    _tx_event_flags_create                              PORTABLE C      */
+/*                                                           6.0          */
+/*  AUTHOR                                                                */
+/*                                                                        */
+/*    William E. Lamie, Microsoft Corporation                             */
+/*                                                                        */
+/*  DESCRIPTION                                                           */
+/*                                                                        */
+/*    This function creates a group of 32 event flags.  All the flags are */
+/*    initially in a cleared state.                                       */
+/*                                                                        */
+/*  INPUT                                                                 */
+/*                                                                        */
+/*    group_ptr                         Pointer to event flags group      */
+/*                                        control block                   */
+/*    name_ptr                          Pointer to event flags name       */
+/*                                                                        */
+/*  OUTPUT                                                                */
+/*                                                                        */
+/*    TX_SUCCESS                        Successful completion status      */
+/*                                                                        */
+/*  CALLS                                                                 */
+/*                                                                        */
+/*    None                                                                */
+/*                                                                        */
+/*  CALLED BY                                                             */
+/*                                                                        */
+/*    Application Code                                                    */
+/*                                                                        */
+/*  RELEASE HISTORY                                                       */
+/*                                                                        */
+/*    DATE              NAME                      DESCRIPTION             */
+/*                                                                        */
+/*  05-19-2020     William E. Lamie         Initial Version 6.0           */
+/*                                                                        */
+/**************************************************************************/
+UINT  _tx_event_flags_create(TX_EVENT_FLAGS_GROUP *group_ptr, CHAR *name_ptr)
+{
+
+TX_INTERRUPT_SAVE_AREA
+
+TX_EVENT_FLAGS_GROUP    *next_group;
+TX_EVENT_FLAGS_GROUP    *previous_group;
+
+
+    /* Initialize event flags control block to all zeros.  */
+    TX_MEMSET(group_ptr, 0, (sizeof(TX_EVENT_FLAGS_GROUP)));
+
+    /* Setup the basic event flags group fields.  */
+    group_ptr -> tx_event_flags_group_name =             name_ptr;
+    
+    /* Disable interrupts to put the event flags group on the created list.  */
+    TX_DISABLE
+
+    /* Setup the event flags ID to make it valid.  */
+    group_ptr -> tx_event_flags_group_id =  TX_EVENT_FLAGS_ID;
+
+    /* Place the group on the list of created event flag groups.  First,
+       check for an empty list.  */
+    if (_tx_event_flags_created_count == TX_EMPTY)
+    {
+
+        /* The created event flags list is empty.  Add event flag group to empty list.  */
+        _tx_event_flags_created_ptr =                         group_ptr;
+        group_ptr -> tx_event_flags_group_created_next =      group_ptr;
+        group_ptr -> tx_event_flags_group_created_previous =  group_ptr;
+    }
+    else
+    {
+
+        /* This list is not NULL, add to the end of the list.  */
+        next_group =      _tx_event_flags_created_ptr;
+        previous_group =  next_group -> tx_event_flags_group_created_previous;
+
+        /* Place the new event flag group in the list.  */
+        next_group -> tx_event_flags_group_created_previous =  group_ptr;
+        previous_group -> tx_event_flags_group_created_next =  group_ptr;
+
+        /* Setup this group's created links.  */
+        group_ptr -> tx_event_flags_group_created_previous =  previous_group;
+        group_ptr -> tx_event_flags_group_created_next =      next_group;
+    }
+
+    /* Increment the number of created event flag groups.  */
+    _tx_event_flags_created_count++;
+    
+    /* Optional event flag group create extended processing.  */
+    TX_EVENT_FLAGS_GROUP_CREATE_EXTENSION(group_ptr)
+
+    /* If trace is enabled, register this object.  */
+    TX_TRACE_OBJECT_REGISTER(TX_TRACE_OBJECT_TYPE_EVENT_FLAGS, group_ptr, name_ptr, 0, 0)
+
+    /* If trace is enabled, insert this event into the trace buffer.  */
+    TX_TRACE_IN_LINE_INSERT(TX_TRACE_EVENT_FLAGS_CREATE, group_ptr, TX_POINTER_TO_ULONG_CONVERT(&next_group), 0, 0, TX_TRACE_EVENT_FLAGS_EVENTS)
+
+    /* Log this kernel call.  */
+    TX_EL_EVENT_FLAGS_CREATE_INSERT
+
+    /* Restore interrupts.  */
+    TX_RESTORE
+
+    /* Return TX_SUCCESS.  */
+    return(TX_SUCCESS);
+}
+