299bc62586
The code conventions suggest using header guards, but do not define how those should look like and instead point to existing files. However, not all existing files follow the same scheme, sometimes omitting header guards altogether, sometimes using non-standard names, making it easy to accidentally pick a "wrong" example. This commit ensures that all header files of the MicroPython project (that were not simply copied from somewhere else) follow the same pattern, that was already present in the majority of files, especially in the py folder. The rules are as follows. Naming convention: * start with the words MICROPY_INCLUDED * contain the full path to the file * replace special characters with _ In addition, there are no empty lines before #ifndef, between #ifndef and one empty line before #endif. #endif is followed by a comment containing the name of the guard macro. py/grammar.h cannot use header guards by design, since it has to be included multiple times in a single C file. Several other files also do not need header guards as they are only used internally and guaranteed to be included only once: * MICROPY_MPHALPORT_H * mpconfigboard.h * mpconfigport.h * mpthreadport.h * pin_defs_*.h * qstrdefs*.h
107 lines
4.3 KiB
C
107 lines
4.3 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_PY_STREAM_H
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#define MICROPY_INCLUDED_PY_STREAM_H
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#include "py/obj.h"
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#include "py/mperrno.h"
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#define MP_STREAM_ERROR ((mp_uint_t)-1)
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// Stream ioctl request codes
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#define MP_STREAM_FLUSH (1)
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#define MP_STREAM_SEEK (2)
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#define MP_STREAM_POLL (3)
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//#define MP_STREAM_CLOSE (4) // Not yet implemented
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#define MP_STREAM_TIMEOUT (5) // Get/set timeout (single op)
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#define MP_STREAM_GET_OPTS (6) // Get stream options
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#define MP_STREAM_SET_OPTS (7) // Set stream options
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#define MP_STREAM_GET_DATA_OPTS (8) // Get data/message options
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#define MP_STREAM_SET_DATA_OPTS (9) // Set data/message options
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// These poll ioctl values are compatible with Linux
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#define MP_STREAM_POLL_RD (0x0001)
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#define MP_STREAM_POLL_WR (0x0004)
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#define MP_STREAM_POLL_ERR (0x0008)
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#define MP_STREAM_POLL_HUP (0x0010)
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// Argument structure for MP_STREAM_SEEK
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struct mp_stream_seek_t {
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mp_off_t offset;
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int whence;
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};
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_read_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_read1_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_readinto_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_unbuffered_readline_obj);
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MP_DECLARE_CONST_FUN_OBJ_1(mp_stream_unbuffered_readlines_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_write_obj);
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MP_DECLARE_CONST_FUN_OBJ_2(mp_stream_write1_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_seek_obj);
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MP_DECLARE_CONST_FUN_OBJ_1(mp_stream_tell_obj);
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MP_DECLARE_CONST_FUN_OBJ_1(mp_stream_flush_obj);
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MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_ioctl_obj);
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// these are for mp_get_stream_raise and can be or'd together
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#define MP_STREAM_OP_READ (1)
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#define MP_STREAM_OP_WRITE (2)
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#define MP_STREAM_OP_IOCTL (4)
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const mp_stream_p_t *mp_get_stream_raise(mp_obj_t self_in, int flags);
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mp_obj_t mp_stream_close(mp_obj_t stream);
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// Iterator which uses mp_stream_unbuffered_readline_obj
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mp_obj_t mp_stream_unbuffered_iter(mp_obj_t self);
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mp_obj_t mp_stream_write(mp_obj_t self_in, const void *buf, size_t len, byte flags);
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// C-level helper functions
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#define MP_STREAM_RW_READ 0
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#define MP_STREAM_RW_WRITE 2
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#define MP_STREAM_RW_ONCE 1
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mp_uint_t mp_stream_rw(mp_obj_t stream, void *buf, mp_uint_t size, int *errcode, byte flags);
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#define mp_stream_write_exactly(stream, buf, size, err) mp_stream_rw(stream, (byte*)buf, size, err, MP_STREAM_RW_WRITE)
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#define mp_stream_read_exactly(stream, buf, size, err) mp_stream_rw(stream, buf, size, err, MP_STREAM_RW_READ)
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void mp_stream_write_adaptor(void *self, const char *buf, size_t len);
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#if MICROPY_STREAMS_POSIX_API
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// Functions with POSIX-compatible signatures
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ssize_t mp_stream_posix_write(mp_obj_t stream, const void *buf, size_t len);
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ssize_t mp_stream_posix_read(mp_obj_t stream, void *buf, size_t len);
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off_t mp_stream_posix_lseek(mp_obj_t stream, off_t offset, int whence);
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int mp_stream_posix_fsync(mp_obj_t stream);
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#endif
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#if MICROPY_STREAMS_NON_BLOCK
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#define mp_is_nonblocking_error(errno) ((errno) == EAGAIN || (errno) == EWOULDBLOCK)
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#else
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#define mp_is_nonblocking_error(errno) (0)
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#endif
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#endif // MICROPY_INCLUDED_PY_STREAM_H
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