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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, Xmake Open Source Community.
*
* @author ruki
* @file prefix.h
*
*/
#ifndef XM_IO_PREFIX_H
#define XM_IO_PREFIX_H
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "../prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* macros
*/
#define XM_IO_BLOCK_MAXN (TB_STREAM_BLOCK_MAXN * 10)
// return io error
#define xm_io_return_error(lua, error) \
do { \
lua_pushnil(lua); \
lua_pushliteral(lua, error); \
return 2; \
} while (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* types
*/
typedef enum __xm_io_file_type_e {
XM_IO_FILE_TYPE_FILE = 0 //!< disk file
,
XM_IO_FILE_TYPE_STDIN = 1,
XM_IO_FILE_TYPE_STDOUT = 2,
XM_IO_FILE_TYPE_STDERR = 3
,
XM_IO_FILE_FLAG_TTY = 0x10 //!< mark tty std stream
} xm_io_file_type_e;
/* use negetive numbers for this enum, its a extension for tb_charset_type_e
* before adding new values, make sure they have not conflicts with values in tb_charset_type_e
*/
typedef enum __xm_io_file_encoding_e {
XM_IO_FILE_ENCODING_UNKNOWN = -1,
XM_IO_FILE_ENCODING_BINARY = -2
} xm_io_file_encoding_e;
// the file type
typedef struct __xm_io_file_t {
union {
/* the normal file for XM_IO_FILE_TYPE_FILE
*
* direct: file_ref -> stream -> file
* transcode: file_ref -> fstream -> stream -> file
*/
tb_stream_ref_t file_ref;
// the standard io file
tb_stdfile_ref_t std_ref;
} u;
tb_stream_ref_t stream; // the file stream for XM_IO_FILE_TYPE_FILE
tb_stream_ref_t fstream; // the file charset stream filter
tb_size_t mode; // tb_file_mode_t
tb_size_t type; // xm_io_file_type_e
tb_size_t encoding; // value of xm_io_file_encoding_e or tb_charset_type_e
tb_bool_t utfbom; // write utf-bom for utf encoding?
tb_buffer_t rcache; // the read line cache buffer
tb_buffer_t wcache; // the write line cache buffer
} xm_io_file_t;
static __tb_inline__ tb_bool_t xm_io_file_is_file(xm_io_file_t const *file) {
return file && file->type == XM_IO_FILE_TYPE_FILE;
}
static __tb_inline__ tb_bool_t xm_io_file_is_std(xm_io_file_t const *file) {
return file && file->type != XM_IO_FILE_TYPE_FILE;
}
static __tb_inline__ tb_bool_t xm_io_file_is_tty(xm_io_file_t const *file) {
return file && (file->type & XM_IO_FILE_FLAG_TTY);
}
// check pipe file
static __tb_inline__ tb_bool_t xm_pipe_file_is_valid(lua_State *lua, tb_int_t index) {
return xm_lua_ispointer(lua, index) || xm_lua_isinteger(lua, index);
}
// get the pipe file from arguments
static __tb_inline__ tb_pipe_file_ref_t xm_pipe_file_get(lua_State *lua, tb_int_t index) {
tb_pipe_file_ref_t pipe_file = tb_null;
if (xm_lua_isinteger(lua, index))
pipe_file = (tb_pipe_file_ref_t)(tb_size_t)(tb_long_t)lua_tointeger(lua, index);
else if (xm_lua_ispointer(lua, index))
pipe_file = (tb_pipe_file_ref_t)xm_lua_topointer(lua, index);
return pipe_file;
}
#endif
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