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Update version numbers in preparation for new release.
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Richard Barry
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1451 changed files with 31767 additions and 11220 deletions
196
FreeRTOS-Plus/Source/Reliance-Edge/include/redposix.h
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FreeRTOS-Plus/Source/Reliance-Edge/include/redposix.h
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/* ----> DO NOT REMOVE THE FOLLOWING NOTICE <----
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Copyright (c) 2014-2015 Datalight, Inc.
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All Rights Reserved Worldwide.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; use version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Businesses and individuals that for commercial or other reasons cannot
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comply with the terms of the GPLv2 license may obtain a commercial license
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before incorporating Reliance Edge into proprietary software for
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distribution in any form. Visit http://www.datalight.com/reliance-edge for
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more information.
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*/
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/** @file
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@brief Interface for the Reliance Edge POSIX-like API.
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The POSIX-like file system API is the primary file system API for
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Reliance Edge, which supports the full functionality of the file system.
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This API aims to be compatible with POSIX where reasonable, but it is
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simplified considerably to meet the needs of resource-constrained embedded
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systems. The API has also been extended to provide access to the unique
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features of Reliance Edge, and to cover areas (like mountins and formatting)
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which do not have APIs in the POSIX specification.
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*/
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#ifndef REDPOSIX_H
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#define REDPOSIX_H
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/* This header is intended for application use; some applications are written
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in C++.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <redconf.h>
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#if REDCONF_API_POSIX == 1
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#include <redtypes.h>
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#include "redapimacs.h"
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#include "rederrno.h"
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#include "redstat.h"
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/** Open for reading only. */
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#define RED_O_RDONLY 0x00000001U
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/** Open for writing only. */
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#define RED_O_WRONLY 0x00000002U
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/** Open for reading and writing. */
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#define RED_O_RDWR 0x00000004U
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/** File offset for all writes is end-of-file. */
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#define RED_O_APPEND 0x00000008U
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/** Create the file. */
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#define RED_O_CREAT 0x00000010U
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/** Error if path already exists. */
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#define RED_O_EXCL 0x00000020U
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/** Truncate file to size zero. */
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#define RED_O_TRUNC 0x00000040U
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/** @brief Last file system error (errno).
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Under normal circumstances, each task using the file system has an
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independent `red_errno` value. Applications do not need to worry about
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one task obliterating an error value that another task needed to read. The
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value is initially zero. When one of the POSIX-like APIs return an
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indication of error, `red_errno` is set to an error value.
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In some circumstances, `red_errno` will be a global errno location which
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is shared by multiple tasks. If the calling task is not registered as a
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file system user and all of the task slots are full, there can be no
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task-specific errno, so the global errno is used. Likewise, if the file
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system driver is uninitialized, there are no registered file system users
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and `red_errno` always refers to the global errno. Under these
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circumstances, multiple tasks manipulating `red_errno` could be
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problematic. When the task count is set to one, `red_errno` always refers
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to the global errno.
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Note that `red_errno` is usable as an lvalue; i.e., in addition to reading
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the error value, the error value can be set:
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~~~{.c}
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red_errno = 0;
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~~~
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*/
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#define red_errno (*red_errnoptr())
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/** @brief Positions from which to seek within a file.
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*/
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typedef enum
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{
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/* 0/1/2 are the traditional values for SET/CUR/END, respectively. Prior
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to the release of Unix System V in 1983, the SEEK_* symbols did not
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exist and C programs hard-coded the 0/1/2 values with those meanings.
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*/
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RED_SEEK_SET = 0, /**< Set file offset to given offset. */
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RED_SEEK_CUR = 1, /**< Set file offset to current offset plus signed offset. */
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RED_SEEK_END = 2 /**< Set file offset to EOF plus signed offset. */
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} REDWHENCE;
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#if REDCONF_API_POSIX_READDIR == 1
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/** @brief Opaque directory handle.
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*/
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typedef struct sREDHANDLE REDDIR;
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/** @brief Directory entry information.
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*/
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typedef struct
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{
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uint32_t d_ino; /**< File serial number (inode number). */
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char d_name[REDCONF_NAME_MAX+1U]; /**< Name of entry. */
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REDSTAT d_stat; /**< File information (POSIX extension). */
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} REDDIRENT;
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#endif
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int32_t red_init(void);
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int32_t red_uninit(void);
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int32_t red_mount(const char *pszVolume);
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int32_t red_umount(const char *pszVolume);
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_FORMAT == 1)
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int32_t red_format(const char *pszVolume);
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#endif
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#if REDCONF_READ_ONLY == 0
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int32_t red_transact(const char *pszVolume);
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#endif
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#if REDCONF_READ_ONLY == 0
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int32_t red_settransmask(const char *pszVolume, uint32_t ulEventMask);
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#endif
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int32_t red_gettransmask(const char *pszVolume, uint32_t *pulEventMask);
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int32_t red_statvfs(const char *pszVolume, REDSTATFS *pStatvfs);
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int32_t red_open(const char *pszPath, uint32_t ulOpenMode);
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_UNLINK == 1)
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int32_t red_unlink(const char *pszPath);
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#endif
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_MKDIR == 1)
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int32_t red_mkdir(const char *pszPath);
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#endif
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_RMDIR == 1)
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int32_t red_rmdir(const char *pszPath);
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#endif
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_RENAME == 1)
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int32_t red_rename(const char *pszOldPath, const char *pszNewPath);
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#endif
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_LINK == 1)
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int32_t red_link(const char *pszPath, const char *pszHardLink);
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#endif
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int32_t red_close(int32_t iFildes);
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int32_t red_read(int32_t iFildes, void *pBuffer, uint32_t ulLength);
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#if REDCONF_READ_ONLY == 0
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int32_t red_write(int32_t iFildes, const void *pBuffer, uint32_t ulLength);
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#endif
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#if REDCONF_READ_ONLY == 0
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int32_t red_fsync(int32_t iFildes);
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#endif
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int64_t red_lseek(int32_t iFildes, int64_t llOffset, REDWHENCE whence);
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#if (REDCONF_READ_ONLY == 0) && (REDCONF_API_POSIX_FTRUNCATE == 1)
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int32_t red_ftruncate(int32_t iFildes, uint64_t ullSize);
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#endif
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int32_t red_fstat(int32_t iFildes, REDSTAT *pStat);
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#if REDCONF_API_POSIX_READDIR == 1
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REDDIR *red_opendir(const char *pszPath);
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REDDIRENT *red_readdir(REDDIR *pDirStream);
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void red_rewinddir(REDDIR *pDirStream);
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int32_t red_closedir(REDDIR *pDirStream);
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#endif
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REDSTATUS *red_errnoptr(void);
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#endif /* REDCONF_API_POSIX */
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#ifdef __cplusplus
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}
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#endif
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#endif
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