ubgpsuite/lonetix/stm.c

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2021-06-07 16:55:13 +02:00
// SPDX-License-Identifier: LGPL-3.0-or-later
/**
* \file stm.c
*
* Common `StmOps`implementation over `Fildes`.
*
* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved
* \author Lorenzo Cogotti
*/
#include "stm.h"
#include "sys/fs.h"
#define STM_TOFILDES(fd) ((Fildes) ((Sintptr) (fd)))
static Sint64 Stm_Fread(void *streamp, void *buf, size_t nbytes)
{
return Sys_Fread(STM_TOFILDES(streamp), buf, nbytes);
}
static Sint64 Stm_Fwrite(void *streamp, const void *buf, size_t nbytes)
{
return Sys_Fwrite(STM_TOFILDES(streamp), buf, nbytes);
}
static Sint64 Stm_Fseek(void *streamp, Sint64 off, SeekMode whence)
{
return Sys_Fseek(STM_TOFILDES(streamp), off, whence);
}
static Sint64 Stm_Ftell(void *streamp)
{
return Sys_Ftell(STM_TOFILDES(streamp));
}
static Judgement Stm_Fsync(void *streamp)
{
return Sys_Fsync(STM_TOFILDES(streamp), /*fullSync=*/TRUE);
}
static void Stm_Fclose(void *streamp)
{
Sys_Fclose(STM_TOFILDES(streamp));
}
static const StmOps fildes_ops = {
Stm_Fread,
Stm_Fwrite,
Stm_Fseek,
Stm_Ftell,
Stm_Fsync,
Stm_Fclose
};
static const StmOps nc_fildes_ops = {
Stm_Fread,
Stm_Fwrite,
Stm_Fseek,
Stm_Ftell,
Stm_Fsync,
NULL
};
const StmOps *const Stm_FildesOps = &fildes_ops;
const StmOps *const Stm_NcFildesOps = &nc_fildes_ops;