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Release 6.1.7

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This commit is contained in:
Bo Chen
2021-06-02 06:45:05 +00:00
parent d759e6bb9e
commit f5056f4923
1269 changed files with 57325 additions and 55178 deletions
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100
utility/rtos_compatibility_layers/posix/px_memory_allocate.c Normal file
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/**************************************************************************/
/* */
/* 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. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** POSIX wrapper for THREADX */
/** */
/** */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#include "tx_api.h" /* Threadx API */
#include "pthread.h" /* Posix API */
#include "px_int.h" /* Posix helper functions */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* posix_memory_allocate PORTABLE C */
/* 6.x */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function attempts to obtain the specified amount of memory */
/* from the POSIX heap. */
/* */
/* INPUT */
/* */
/* size Number of bytes in the pool */
/* memory_ptr Pointer to memory ptr variable*/
/* */
/* OUTPUT */
/* */
/* ERROR If error occurs */
/* retval Return value */
/* */
/* CALLS */
/* */
/* tx_byte_allocate Allocate from the pool */
/* posix_internal_error Generic posix error */
/* */
/* CALLED BY */
/* */
/* POSIX internal code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* xx-xx-xxxx William E. Lamie Initial Version 6.x */
/* */
/**************************************************************************/
INT posix_memory_allocate(ULONG size, VOID **memory_ptr)
{
INT retval;
/* Init in case we fail. */
*memory_ptr = (VOID *)0;
/* Force all alignments to long word boundaries to be safe. */
if (size & 0x03)
{
/* Bump size up to next 4 byte boundary. */
size = ((size + 0x03) & ~0x03);
}
/* Attempt to allocate the desired memory from the POSIX heap.
Do not wait - if memory isn't available, flag an error. */
retval = tx_byte_allocate((TX_BYTE_POOL *)&posix_heap_byte_pool, memory_ptr,
size, TX_NO_WAIT);
/* Make sure the memory was obtained successfully. */
if (retval)
{
/* Error obtaining memory. */
posix_internal_error(555);
/* return error. */
return(ERROR);
}
/* Return to caller. */
return(retval);
}