// VolumeSupport.h

#ifndef NET_FS_VOLUME_SUPPORT_H
#define NET_FS_VOLUME_SUPPORT_H

#include <dirent.h>

#include "DebugSupport.h"

// set_dirent_name
static inline
status_t
set_dirent_name(struct dirent* buffer, size_t bufferSize, const char* name,
        int32 nameLen)
{
        size_t length = (buffer->d_name + nameLen + 1) - (char*)buffer;
        if (length <= bufferSize) {
                memcpy(buffer->d_name, name, nameLen);
                buffer->d_name[nameLen] = '\0';
                buffer->d_reclen = length;
                return B_OK;
        } else {
                RETURN_ERROR(B_BAD_VALUE);
        }
}

// next_dirent
static inline
bool
next_dirent(struct dirent*& buffer, size_t& bufferSize)
{
        // align
        char* nextBuffer = (char*)buffer + buffer->d_reclen;
        nextBuffer = (char*)(((addr_t)nextBuffer + 3) & ~0x3);

        // check, if the buffer is at least large enough to align the current entry
        int32 len = nextBuffer - (char*)buffer;
        if (len > (int32)bufferSize)
                return false;

        buffer->d_reclen = len;
        buffer = (dirent*)nextBuffer;
        bufferSize -= len;

        return true;
}

#endif  // NET_FS_VOLUME_SUPPORT_H