#include <px4_platform_common/posix.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <systemlib/err.h>
#include "tinybson.h"

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Macros
#define	debug(fmt, args...) do { } while(0)

#define	CODER_CHECK(_c) do { if (_c->dead) { debug("coder dead"); return -1; }} while(0)

#define	CODER_KILL(_c, _reason) do { debug("killed: %s", _reason); _c->dead = true; return -1; } while(0)

#define	BSON_READ read

#define	BSON_WRITE write

#define	BSON_FSYNC fsync

Functions
static int	read_x (bson_decoder_t decoder, void *p, size_t s)

static int	read_int8 (bson_decoder_t decoder, int8_t *b)

static int	read_int32 (bson_decoder_t decoder, int32_t *i)

static int	read_int64 (bson_decoder_t decoder, int64_t *i)

static int	read_double (bson_decoder_t decoder, double *d)

int	bson_decoder_init_file (bson_decoder_t decoder, int fd, bson_decoder_callback callback, void *priv)
	Initialise the decoder to read from a file. More...

int	bson_decoder_init_buf (bson_decoder_t decoder, void buf, unsigned bufsize, bson_decoder_callback callback, void priv)
	Initialise the decoder to read from a buffer in memory. More...

int	bson_decoder_next (bson_decoder_t decoder)
	Process the next node from the stream and invoke the callback. More...

int	bson_decoder_copy_data (bson_decoder_t decoder, void *buf)
	Copy node data. More...

size_t	bson_decoder_data_pending (bson_decoder_t decoder)
	Report copyable data size. More...

static int	write_x (bson_encoder_t encoder, const void *p, size_t s)

static int	write_int8 (bson_encoder_t encoder, int8_t b)

static int	write_int32 (bson_encoder_t encoder, int32_t i)

static int	write_int64 (bson_encoder_t encoder, int64_t i)

static int	write_double (bson_encoder_t encoder, double d)

static int	write_name (bson_encoder_t encoder, const char *name)

int	bson_encoder_init_file (bson_encoder_t encoder, int fd)
	Initialze the encoder for writing to a file. More...

int	bson_encoder_init_buf_file (bson_encoder_t encoder, int fd, void *buf, unsigned bufsize)
	Initialze the encoder for writing to a file. More...

int	bson_encoder_init_buf (bson_encoder_t encoder, void *buf, unsigned bufsize)
	Initialze the encoder for writing to a buffer. More...

int	bson_encoder_fini (bson_encoder_t encoder)
	Finalise the encoded stream. More...

int	bson_encoder_buf_size (bson_encoder_t encoder)
	Fetch the size of the encoded object; only valid for buffer operations. More...

void *	bson_encoder_buf_data (bson_encoder_t encoder)
	Get a pointer to the encoded object buffer. More...

int	bson_encoder_append_bool (bson_encoder_t encoder, const char *name, bool value)
	Append a boolean to the encoded stream. More...

int	bson_encoder_append_int (bson_encoder_t encoder, const char *name, int64_t value)
	Append an integer to the encoded stream. More...

int	bson_encoder_append_double (bson_encoder_t encoder, const char *name, double value)
	Append a double to the encoded stream. More...

int	bson_encoder_append_string (bson_encoder_t encoder, const char name, const char string)
	Append a string to the encoded stream. More...

int	bson_encoder_append_binary (bson_encoder_t encoder, const char name, bson_binary_subtype_t subtype, size_t size, const void data)
	Append a binary blob to the encoded stream. More...

Macro Definition Documentation

◆ BSON_FSYNC

#define BSON_FSYNC fsync

Definition at line 59 of file tinybson.cpp.

Referenced by bson_encoder_fini().

◆ BSON_READ

#define BSON_READ read

Definition at line 57 of file tinybson.cpp.

Referenced by read_x().

◆ BSON_WRITE

#define BSON_WRITE write

Definition at line 58 of file tinybson.cpp.

Referenced by bson_encoder_fini(), and write_x().

◆ CODER_CHECK

#define CODER_CHECK ( _c ) do { if (_c->dead) { debug("coder dead"); return -1; }} while(0)

Definition at line 54 of file tinybson.cpp.

Referenced by bson_decoder_copy_data(), bson_decoder_next(), bson_encoder_append_binary(), bson_encoder_append_bool(), bson_encoder_append_double(), bson_encoder_append_int(), bson_encoder_append_string(), bson_encoder_buf_size(), bson_encoder_fini(), read_x(), and write_x().

◆ CODER_KILL

#define CODER_KILL	(	_c,
		_reason
	)	do { debug("killed: %s", _reason); _c->dead = true; return -1; } while(0)

Definition at line 55 of file tinybson.cpp.

Referenced by bson_decoder_copy_data(), bson_decoder_init_buf(), bson_decoder_init_file(), bson_decoder_next(), bson_encoder_append_binary(), bson_encoder_append_bool(), bson_encoder_append_double(), bson_encoder_append_int(), bson_encoder_append_string(), bson_encoder_fini(), bson_encoder_init_buf(), bson_encoder_init_buf_file(), bson_encoder_init_file(), read_x(), write_name(), and write_x().

◆ debug

#define debug	(	fmt,
		args...
	)	do { } while(0)

Definition at line 51 of file tinybson.cpp.

Referenced by bson_decoder_init_buf(), bson_decoder_next(), bson_encoder_append_int(), read_x(), and write_x().

Function Documentation

◆ bson_decoder_copy_data()

int bson_decoder_copy_data	(	bson_decoder_t	decoder,
		void *	buf
	)

Copy node data.

Parameters

decoder Decoder state, must have been initialised with bson_decoder_init.

Definition at line 312 of file tinybson.cpp.

References CODER_CHECK, CODER_KILL, bson_decoder_s::pending, and read_x().

Referenced by decode_callback(), and param_import_callback().

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◆ bson_decoder_data_pending()

size_t bson_decoder_data_pending ( bson_decoder_t decoder )

Report copyable data size.

Parameters

decoder Decoder state, must have been initialised with bson_decoder_init.

Definition at line 331 of file tinybson.cpp.

References bson_decoder_s::pending.

Referenced by decode_callback(), and param_import_callback().

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◆ bson_decoder_init_buf()

int bson_decoder_init_buf	(	bson_decoder_t	decoder,
		void *	buf,
		unsigned	bufsize,
		bson_decoder_callback	callback,
		void *	priv
	)

Initialise the decoder to read from a buffer in memory.

Parameters

decoder	Decoder state structure to be initialised.
buf	Buffer to read from.
bufsize	Size of the buffer (BSON object may be smaller). May be passed as zero if the buffer size should be extracted from the BSON header only.
callback	Callback to be invoked by bson_decoder_next
priv	Callback private data, stored in node.

Returns: Zero on success.

Definition at line 137 of file tinybson.cpp.

References BSON_UNDEFINED, bson_decoder_s::buf, bson_decoder_s::bufpos, bson_decoder_s::bufsize, bson_decoder_s::callback, CODER_KILL, bson_decoder_s::dead, debug, bson_decoder_s::fd, bson_decoder_s::nesting, bson_decoder_s::node, bson_decoder_s::pending, bson_decoder_s::priv, read_int32(), and bson_node_s::type.

Referenced by param_import_internal(), and test_bson().

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◆ bson_decoder_init_file()

int bson_decoder_init_file	(	bson_decoder_t	decoder,
		int	fd,
		bson_decoder_callback	callback,
		void *	priv
	)

Initialise the decoder to read from a file.

Parameters

decoder	Decoder state structure to be initialised.
fd	File to read BSON data from.
callback	Callback to be invoked by bson_decoder_next
priv	Callback private data, stored in node.

Returns: Zero on success.

Definition at line 114 of file tinybson.cpp.

References BSON_UNDEFINED, bson_decoder_s::buf, bson_decoder_s::callback, CODER_KILL, bson_decoder_s::dead, bson_decoder_s::fd, fd, bson_decoder_s::nesting, bson_decoder_s::node, bson_decoder_s::pending, bson_decoder_s::priv, read_int32(), and bson_node_s::type.

Referenced by param_import_internal().

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◆ bson_decoder_next()

int bson_decoder_next ( bson_decoder_t decoder )

Process the next node from the stream and invoke the callback.

Parameters

decoder Decoder state, must have been initialised with bson_decoder_init.

Returns: -1 if parsing encountered an error, 0 if the BSON stream has ended, otherwise the return value from the callback.

Definition at line 180 of file tinybson.cpp.

References bson_node_s::b, BSON_BINDATA, BSON_BOOL, BSON_DOUBLE, BSON_EOO, BSON_INT32, BSON_INT64, BSON_MAXNAME, BSON_STRING, bson_decoder_s::callback, CODER_CHECK, CODER_KILL, bson_node_s::d, debug, bson_decoder_s::fd, bson_node_s::i, bson_node_s::name, bson_decoder_s::nesting, bson_decoder_s::node, bson_decoder_s::pending, bson_decoder_s::priv, read_double(), read_int32(), read_int64(), read_int8(), bson_node_s::subtype, and bson_node_s::type.

Referenced by decode(), and param_import_internal().

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◆ bson_encoder_append_binary()

int bson_encoder_append_binary	(	bson_encoder_t	encoder,
		const char *	name,
		bson_binary_subtype_t	subtype,
		size_t	size,
		const void *	data
	)

Append a binary blob to the encoded stream.

Parameters

encoder	Encoder state.
name	Node name.
subtype	Binary data subtype.
size	Data size.
data	Buffer containing data to be encoded.

Definition at line 614 of file tinybson.cpp.

References BSON_BINDATA, CODER_CHECK, CODER_KILL, write_int32(), write_int8(), write_name(), and write_x().

Referenced by encode(), param_export(), and param_export_internal().

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◆ bson_encoder_append_bool()

int bson_encoder_append_bool	(	bson_encoder_t	encoder,
		const char *	name,
		bool	value
	)

Append a boolean to the encoded stream.

Parameters

encoder	Encoder state.
name	Node name.
value	Value to be encoded.

Definition at line 538 of file tinybson.cpp.

References BSON_BOOL, CODER_CHECK, CODER_KILL, write_int8(), and write_name().

Referenced by encode().

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◆ bson_encoder_append_double()

int bson_encoder_append_double	(	bson_encoder_t	encoder,
		const char *	name,
		double	value
	)

Append a double to the encoded stream.

Parameters

encoder	Encoder state.
name	Node name.
value	Value to be encoded.

Definition at line 580 of file tinybson.cpp.

References BSON_DOUBLE, CODER_CHECK, CODER_KILL, write_double(), write_int8(), and write_name().

Referenced by encode(), param_export(), and param_export_internal().

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◆ bson_encoder_append_int()

int bson_encoder_append_int	(	bson_encoder_t	encoder,
		const char *	name,
		int64_t	value
	)

Append an integer to the encoded stream.

Parameters

encoder	Encoder state.
name	Node name.
value	Value to be encoded.

Definition at line 552 of file tinybson.cpp.

References BSON_INT32, BSON_INT64, CODER_CHECK, CODER_KILL, debug, write_int32(), write_int64(), write_int8(), and write_name().

Referenced by encode(), param_export(), and param_export_internal().

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◆ bson_encoder_append_string()

int bson_encoder_append_string	(	bson_encoder_t	encoder,
		const char *	name,
		const char *	string
	)

Append a string to the encoded stream.

Parameters

encoder	Encoder state.
name	Node name.
string	Nul-terminated C string.

Definition at line 595 of file tinybson.cpp.

References BSON_STRING, CODER_CHECK, CODER_KILL, write_int32(), write_int8(), write_name(), and write_x().

Referenced by encode().

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◆ bson_encoder_buf_data()

void* bson_encoder_buf_data ( bson_encoder_t encoder )

Get a pointer to the encoded object buffer.

Note that if the buffer was allocated by the encoder, it is the caller's responsibility to free this buffer.

Definition at line 527 of file tinybson.cpp.

References bson_encoder_s::buf, and bson_encoder_s::fd.

Referenced by param_export_internal(), and test_bson().

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◆ bson_encoder_buf_size()

int bson_encoder_buf_size ( bson_encoder_t encoder )

Fetch the size of the encoded object; only valid for buffer operations.

Definition at line 515 of file tinybson.cpp.

References bson_encoder_s::bufpos, CODER_CHECK, and bson_encoder_s::fd.

Referenced by bson_encoder_fini(), param_export_internal(), and test_bson().

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◆ bson_encoder_fini()

int bson_encoder_fini ( bson_encoder_t encoder )

Finalise the encoded stream.

Parameters

encoder The encoder to finalise.

Definition at line 484 of file tinybson.cpp.

References bson_encoder_buf_size(), BSON_EOO, BSON_FSYNC, BSON_WRITE, bson_encoder_s::buf, bson_encoder_s::bufpos, CODER_CHECK, CODER_KILL, bson_encoder_s::fd, and write_int8().

Referenced by encode(), param_export(), and param_export_internal().

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◆ bson_encoder_init_buf()

int bson_encoder_init_buf	(	bson_encoder_t	encoder,
		void *	buf,
		unsigned	bufsize
	)

Initialze the encoder for writing to a buffer.

Parameters

encoder	Encoder state structure to be initialised.
buf	Buffer pointer to use, or nullptr if the buffer should be allocated by the encoder.
bufsize	Maximum buffer size, or zero for no limit. If the buffer is supplied, the size of the supplied buffer.

Returns: Zero on success.

Definition at line 460 of file tinybson.cpp.

References bson_encoder_s::buf, bson_encoder_s::bufpos, bson_encoder_s::bufsize, CODER_KILL, bson_encoder_s::dead, bson_encoder_s::fd, bson_encoder_s::realloc_ok, and write_int32().

Referenced by param_export_internal(), and test_bson().

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◆ bson_encoder_init_buf_file()

int bson_encoder_init_buf_file	(	bson_encoder_t	encoder,
		int	fd,
		void *	buf,
		unsigned	bufsize
	)

Initialze the encoder for writing to a file.

Parameters

encoder	Encoder state structure to be initialised.
fd	File to write to.
buf	Buffer pointer to use, can't be nullptr
bufsize	Supplied buffer size

Returns: Zero on success.

Definition at line 443 of file tinybson.cpp.

References bson_encoder_s::buf, bson_encoder_s::bufpos, bson_encoder_s::bufsize, CODER_KILL, bson_encoder_s::dead, fd, bson_encoder_s::fd, bson_encoder_s::realloc_ok, and write_int32().

Referenced by param_export().

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◆ bson_encoder_init_file()

int bson_encoder_init_file	(	bson_encoder_t	encoder,
		int	fd
	)

Initialze the encoder for writing to a file.

Parameters

encoder	Encoder state structure to be initialised.
fd	File to write to.

Returns: Zero on success.

Definition at line 429 of file tinybson.cpp.

References bson_encoder_s::buf, CODER_KILL, bson_encoder_s::dead, fd, bson_encoder_s::fd, and write_int32().

Referenced by param_export().

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◆ read_double()

static int read_double	(	bson_decoder_t	decoder,
		double *	d
	)

static

Definition at line 108 of file tinybson.cpp.

References read_x().

Referenced by bson_decoder_next().

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◆ read_int32()

static int read_int32	(	bson_decoder_t	decoder,
		int32_t *	i
	)

static

Definition at line 96 of file tinybson.cpp.

References read_x().

Referenced by bson_decoder_init_buf(), bson_decoder_init_file(), and bson_decoder_next().

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◆ read_int64()

static int read_int64	(	bson_decoder_t	decoder,
		int64_t *	i
	)

static

Definition at line 102 of file tinybson.cpp.

References read_x().

Referenced by bson_decoder_next().

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◆ read_int8()

static int read_int8	(	bson_decoder_t	decoder,
		int8_t *	b
	)

static

Definition at line 90 of file tinybson.cpp.

References read_x().

Referenced by bson_decoder_next().

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◆ read_x()

static int read_x	(	bson_decoder_t	decoder,
		void *	p,
		size_t	s
	)

static

Definition at line 62 of file tinybson.cpp.

References BSON_READ, bson_decoder_s::buf, bson_decoder_s::bufpos, bson_decoder_s::bufsize, CODER_CHECK, CODER_KILL, debug, and bson_decoder_s::fd.

Referenced by bson_decoder_copy_data(), read_double(), read_int32(), read_int64(), and read_int8().

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◆ write_double()

static int write_double	(	bson_encoder_t	encoder,
		double	d
	)

static

Definition at line 411 of file tinybson.cpp.

References write_x().

Referenced by bson_encoder_append_double().

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◆ write_int32()

static int write_int32	(	bson_encoder_t	encoder,
		int32_t	i
	)

static

Definition at line 399 of file tinybson.cpp.

References write_x().

Referenced by bson_encoder_append_binary(), bson_encoder_append_int(), bson_encoder_append_string(), bson_encoder_init_buf(), bson_encoder_init_buf_file(), and bson_encoder_init_file().

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◆ write_int64()

static int write_int64	(	bson_encoder_t	encoder,
		int64_t	i
	)

static

Definition at line 405 of file tinybson.cpp.

References write_x().

Referenced by bson_encoder_append_int().

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◆ write_int8()

static int write_int8	(	bson_encoder_t	encoder,
		int8_t	b
	)

static

Definition at line 393 of file tinybson.cpp.

References write_x().

Referenced by bson_encoder_append_binary(), bson_encoder_append_bool(), bson_encoder_append_double(), bson_encoder_append_int(), bson_encoder_append_string(), and bson_encoder_fini().

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◆ write_name()

static int write_name	(	bson_encoder_t	encoder,
		const char *	name
	)

static

Definition at line 417 of file tinybson.cpp.

References BSON_MAXNAME, CODER_KILL, and write_x().

Referenced by bson_encoder_append_binary(), bson_encoder_append_bool(), bson_encoder_append_double(), bson_encoder_append_int(), and bson_encoder_append_string().

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◆ write_x()

static int write_x	(	bson_encoder_t	encoder,
		const void *	p,
		size_t	s
	)

static

Definition at line 337 of file tinybson.cpp.

References BSON_BUF_INCREMENT, BSON_WRITE, bson_encoder_s::buf, bson_encoder_s::bufpos, bson_encoder_s::bufsize, CODER_CHECK, CODER_KILL, debug, bson_encoder_s::fd, and bson_encoder_s::realloc_ok.

Referenced by bson_encoder_append_binary(), bson_encoder_append_string(), write_double(), write_int32(), write_int64(), write_int8(), and write_name().

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Macros

Functions

Macro Definition Documentation

◆ BSON_FSYNC

◆ BSON_READ

◆ BSON_WRITE

◆ CODER_CHECK

◆ CODER_KILL

◆ debug

Function Documentation

◆ bson_decoder_copy_data()

◆ bson_decoder_data_pending()

◆ bson_decoder_init_buf()

◆ bson_decoder_init_file()

◆ bson_decoder_next()

◆ bson_encoder_append_binary()

◆ bson_encoder_append_bool()

◆ bson_encoder_append_double()

◆ bson_encoder_append_int()

◆ bson_encoder_append_string()

◆ bson_encoder_buf_data()

◆ bson_encoder_buf_size()

◆ bson_encoder_fini()

◆ bson_encoder_init_buf()

◆ bson_encoder_init_buf_file()

◆ bson_encoder_init_file()

◆ read_double()

◆ read_int32()

◆ read_int64()

◆ read_int8()

◆ read_x()

◆ write_double()

◆ write_int32()

◆ write_int64()

◆ write_int8()

◆ write_name()

◆ write_x()