* Copyright 2022, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef FS_OPS_SUPPORT_H
#define FS_OPS_SUPPORT_H
#ifndef FS_SHELL
# include <kernel.h>
# include <kernel/debug.h>
# include <dirent.h>
#else
# include "fssh_kernel_priv.h"
#endif
*/
static inline int
open_mode_to_access(int openMode)
{
openMode &= O_RWMASK;
if (openMode == O_RDONLY)
return R_OK;
if (openMode == O_WRONLY)
return W_OK;
if (openMode == O_RDWR)
return R_OK | W_OK;
return 0;
}
* and either advances to the next buffer, or returns NULL if no space remains.
*/
static inline struct dirent*
next_dirent(struct dirent* dirent, size_t nameLength, size_t& bufferRemaining)
{
const size_t reclen = offsetof(struct dirent, d_name) + nameLength + 1;
#ifdef ASSERT
ASSERT(reclen <= bufferRemaining);
#endif
dirent->d_reclen = reclen;
const size_t roundedReclen = ROUNDUP(reclen, alignof(struct dirent));
if (roundedReclen >= bufferRemaining) {
bufferRemaining -= reclen;
return NULL;
}
dirent->d_reclen = roundedReclen;
bufferRemaining -= roundedReclen;
return (struct dirent*)((uint8*)dirent + roundedReclen);
}
#endif
