diff options
| author | PProvost <[email protected]> | 2020-05-11 08:55:07 -0600 |
|---|---|---|
| committer | PProvost <[email protected]> | 2020-05-11 08:55:07 -0600 |
| commit | 852421fda03a7722d7adb45b187235cd66fa264e (patch) | |
| tree | b117e1339a047347a3d7ebf3eeb1891168cc9b9b /common/src/txe_semaphore_ceiling_put.c | |
Initial commit
Diffstat (limited to 'common/src/txe_semaphore_ceiling_put.c')
| -rw-r--r-- | common/src/txe_semaphore_ceiling_put.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/common/src/txe_semaphore_ceiling_put.c b/common/src/txe_semaphore_ceiling_put.c new file mode 100644 index 00000000..e404d4c7 --- /dev/null +++ b/common/src/txe_semaphore_ceiling_put.c @@ -0,0 +1,113 @@ +/**************************************************************************/ +/* */ +/* 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 */ +/** */ +/** Semaphore */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#define TX_SOURCE_CODE + + +/* Include necessary system files. */ + +#include "tx_api.h" +#include "tx_semaphore.h" + + +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _txe_semaphore_ceiling_put PORTABLE C */ +/* 6.0 */ +/* AUTHOR */ +/* */ +/* William E. Lamie, Microsoft Corporation */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function checks for errors in the semaphore ceiling put */ +/* function call. */ +/* */ +/* INPUT */ +/* */ +/* semaphore_ptr Pointer to semaphore */ +/* ceiling Maximum value of semaphore */ +/* */ +/* OUTPUT */ +/* */ +/* TX_SEMAPHORE_ERROR Invalid semaphore pointer */ +/* TX_INVALID_CEILING Invalid semaphore ceiling */ +/* status Actual completion status */ +/* */ +/* CALLS */ +/* */ +/* _tx_semaphore_ceiling_put Actual semaphore ceiling put */ +/* function */ +/* */ +/* CALLED BY */ +/* */ +/* Application Code */ +/* */ +/* RELEASE HISTORY */ +/* */ +/* DATE NAME DESCRIPTION */ +/* */ +/* 05-19-2020 William E. Lamie Initial Version 6.0 */ +/* */ +/**************************************************************************/ +UINT _txe_semaphore_ceiling_put(TX_SEMAPHORE *semaphore_ptr, ULONG ceiling) +{ + +UINT status; + + + /* Check for an invalid semaphore pointer. */ + if (semaphore_ptr == TX_NULL) + { + + /* Semaphore pointer is invalid, return appropriate error code. */ + status = TX_SEMAPHORE_ERROR; + } + + /* Now check for a valid semaphore ID. */ + else if (semaphore_ptr -> tx_semaphore_id != TX_SEMAPHORE_ID) + { + + /* Semaphore pointer is invalid, return appropriate error code. */ + status = TX_SEMAPHORE_ERROR; + } + + /* Determine if the ceiling is valid - must be greater than 1. */ + else if (ceiling == ((ULONG) 0)) + { + + /* Invalid ceiling, return error. */ + status = TX_INVALID_CEILING; + } + else + { + + /* Call actual semaphore ceiling put function. */ + status = _tx_semaphore_ceiling_put(semaphore_ptr, ceiling); + } + + /* Return completion status. */ + return(status); +} + |