MRTKLIB Stream Module — stream I/O abstraction layer. More...

#include "mrtklib/mrtk_foundation.h"
#include "mrtklib/mrtk_rcvraw.h"
#include "mrtklib/mrtk_rtcm.h"
#include "mrtklib/mrtk_sol.h"
#include "mrtklib/mrtk_time.h"

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Classes
struct	stream_tag
struct	strconv_t
struct	strsvr_t

Macros
#define	STR_NONE 0 /* stream type: none */
#define	STR_SERIAL 1 /* stream type: serial */
#define	STR_FILE 2 /* stream type: file */
#define	STR_TCPSVR 3 /* stream type: TCP server */
#define	STR_TCPCLI 4 /* stream type: TCP client */
#define	STR_NTRIPSVR 5 /* stream type: NTRIP server */
#define	STR_NTRIPCLI 6 /* stream type: NTRIP client */
#define	STR_FTP 7 /* stream type: ftp */
#define	STR_HTTP 8 /* stream type: http */
#define	STR_NTRIPCAS 9 /* stream type: NTRIP caster */
#define	STR_UDPSVR 10 /* stream type: UDP server */
#define	STR_UDPCLI 11 /* stream type: UDP client */
#define	STR_MEMBUF 12 /* stream type: memory buffer */
#define	MAXRCVFMT 12 /* max number of receiver format */
#define	STR_MODE_R 0x1 /* stream mode: read */
#define	STR_MODE_W 0x2 /* stream mode: write */
#define	STR_MODE_RW 0x3 /* stream mode: read/write */
#define	MSG_DISCONN "$_DISCONNECT\r\n" /* disconnect message */

Typedefs
typedef struct stream_tag	stream_t

Functions
void	strinitcom (void)
	Initialize stream communication system.
void	strinit (stream_t *stream)
	Initialize stream structure.
void	strlock (stream_t *stream)
	Lock stream.
void	strunlock (stream_t *stream)
	Unlock stream.
int	stropen (stream_t stream, int type, int mode, const char path)
	Open stream.
void	strclose (stream_t *stream)
	Close stream.
int	strread (stream_t stream, uint8_t buff, int n)
	Read data from stream.
int	strwrite (stream_t stream, uint8_t buff, int n)
	Write data to stream.
void	strsync (stream_t stream1, stream_t stream2)
	Sync streams.
int	strstat (stream_t stream, char msg)
	Get stream status.
int	strstatx (stream_t stream, char msg)
	Get stream extended status.
void	strsum (stream_t stream, uint64_t inb, int inr, uint64_t outb, int *outr)
	Get stream statistics summary.
void	strsetopt (const int *opt)
	Set stream options.
gtime_t	strgettime (stream_t *stream)
	Get stream time.
void	strsendnmea (stream_t stream, const sol_t sol)
	Send NMEA request to stream.
void	strsendcmd (stream_t stream, const char cmd)
	Send receiver command to stream.
void	strsettimeout (stream_t *stream, int toinact, int tirecon)
	Set stream timeout.
void	strsetdir (const char *dir)
	Set FTP/HTTP local directory.
void	strsetproxy (const char *addr)
	Set HTTP/NTRIP proxy address.
void	strsetntripver (int ver)
	Set default NTRIP version for new connections.
void	strsvrinit (strsvr_t *svr, int nout)
int	strsvrstart (strsvr_t svr, int opts, int strs, char paths, char logs, strconv_t conv, char cmds, char cmds_priodic, const double nmeapos)
void	strsvrstop (strsvr_t svr, char *cmds)
void	strsvrstat (strsvr_t svr, int stat, int log_stat, uint64_t byte, int bps, char msg)
	Get stream server status.
strconv_t *	strconvnew (int itype, int otype, const char msgs, int staid, int stasel, const char opt)
void	strconvfree (strconv_t *conv)

Variables
const char *	formatstrs []

Detailed Description

MRTKLIB Stream Module — stream I/O abstraction layer.

This header provides the stream_t type and related types (strconv_t, strsvr_t) for managing various I/O streams (file, serial, TCP, NTRIP, UDP, FTP/HTTP, memory buffer).

Note: Functions declared here are implemented in mrtk_stream.c.

Definition in file mrtk_stream.h.

Macro Definition Documentation

◆ MAXRCVFMT

#define MAXRCVFMT 12 /* max number of receiver format */

Definition at line 57 of file mrtk_stream.h.

Referenced by close_strfile(), free_strfile(), gen_strfile(), input_strfile(), and open_strfile().

◆ MSG_DISCONN

#define MSG_DISCONN "$_DISCONNECT\r\n" /* disconnect message */

Definition at line 63 of file mrtk_stream.h.

◆ STR_FILE

#define STR_FILE 2 /* stream type: file */

Definition at line 45 of file mrtk_stream.h.

Referenced by rtksvrstart(), strclose(), strgettime(), stropen(), strread(), strstat(), strstatx(), strsvrstart(), strsync(), and strwrite().

◆ STR_FTP

#define STR_FTP 7 /* stream type: ftp */

Definition at line 50 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_HTTP

#define STR_HTTP 8 /* stream type: http */

Definition at line 51 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_MEMBUF

#define STR_MEMBUF 12 /* stream type: memory buffer */

Definition at line 55 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_MODE_R

#define STR_MODE_R 0x1 /* stream mode: read */

Definition at line 59 of file mrtk_stream.h.

Referenced by openfile(), openfile_(), openserial(), rtksvrstart(), strgettime(), strread(), and strsvrstart().

◆ STR_MODE_RW

#define STR_MODE_RW 0x3 /* stream mode: read/write */

Definition at line 61 of file mrtk_stream.h.

Referenced by strsvrstart().

◆ STR_MODE_W

#define STR_MODE_W 0x2 /* stream mode: write */

Definition at line 60 of file mrtk_stream.h.

Referenced by openfile(), openfile_(), openserial(), rtksvropenstr(), rtksvrstart(), strsvrstart(), and strwrite().

◆ STR_NONE

#define STR_NONE 0 /* stream type: none */

Definition at line 43 of file mrtk_stream.h.

Referenced by strsvrstart().

◆ STR_NTRIPCAS

#define STR_NTRIPCAS 9 /* stream type: NTRIP caster */

Definition at line 52 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_NTRIPCLI

#define STR_NTRIPCLI 6 /* stream type: NTRIP client */

Definition at line 49 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strsettimeout(), strstat(), strstatx(), and strwrite().

◆ STR_NTRIPSVR

#define STR_NTRIPSVR 5 /* stream type: NTRIP server */

Definition at line 48 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strsettimeout(), strstat(), strstatx(), and strwrite().

◆ STR_SERIAL

#define STR_SERIAL 1 /* stream type: serial */

Definition at line 44 of file mrtk_stream.h.

Referenced by set_brate(), strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_TCPCLI

#define STR_TCPCLI 4 /* stream type: TCP client */

Definition at line 47 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strsettimeout(), strstat(), strstatx(), and strwrite().

◆ STR_TCPSVR

#define STR_TCPSVR 3 /* stream type: TCP server */

Definition at line 46 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), strstatx(), and strwrite().

◆ STR_UDPCLI

#define STR_UDPCLI 11 /* stream type: UDP client */

Definition at line 54 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strstat(), strstatx(), and strwrite().

◆ STR_UDPSVR

#define STR_UDPSVR 10 /* stream type: UDP server */

Definition at line 53 of file mrtk_stream.h.

Referenced by strclose(), stropen(), strread(), strstat(), and strstatx().

Typedef Documentation

◆ stream_t

typedef struct stream_tag stream_t

Function Documentation

◆ strclose()

void strclose ( stream_t * stream )

Close stream.

Parameters

[in,out] stream stream struct

Definition at line 3233 of file mrtk_stream.c.

References closefile(), closeftp(), closemembuf(), closentrip(), closentripc(), closeserial(), closetcpcli(), closetcpsvr(), closeudpcli(), closeudpsvr(), stream_tag::inr, stream_tag::mode, stream_tag::msg, stream_tag::outr, stream_tag::path, stream_tag::port, stream_tag::state, STR_FILE, STR_FTP, STR_HTTP, STR_MEMBUF, STR_NTRIPCAS, STR_NTRIPCLI, STR_NTRIPSVR, STR_SERIAL, STR_TCPCLI, STR_TCPSVR, STR_UDPCLI, STR_UDPSVR, strlock(), strunlock(), trace(), tracet(), and stream_tag::type.

Referenced by rtksvrclosestr(), rtksvrstart(), rtksvrthread(), set_brate(), strsvrstart(), and strsvrthread().

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◆ strconvfree()

void strconvfree ( strconv_t * conv )

Definition at line 123 of file mrtk_streamsvr.c.

References free, free_raw(), free_rtcm(), strconv_t::out, strconv_t::raw, and strconv_t::rtcm.

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◆ strconvnew()

strconv_t * strconvnew	(	int	itype,
		int	otype,
		const char *	msgs,
		int	staid,
		int	stasel,
		const char *	opt )

Definition at line 72 of file mrtk_streamsvr.c.

References calloc, strconv_t::ephsat, free, free_rtcm(), init_raw(), init_rtcm(), strconv_t::itype, strconv_t::msgs, strconv_t::nmsg, raw_t::opt, rtcm_t::opt, strconv_t::otype, strconv_t::out, strconv_t::raw, strconv_t::rtcm, rtcm_t::staid, strconv_t::stasel, strconv_t::tick, tickget(), and strconv_t::tint.

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◆ strgettime()

gtime_t strgettime ( stream_t * stream )

Get stream time.

Parameters

[in] stream stream struct

Returns: stream time

Definition at line 3690 of file mrtk_stream.c.

References stream_tag::mode, stream_tag::port, file_t::start, STR_FILE, STR_MODE_R, file_t::time, timeadd(), timeget(), stream_tag::type, and utc2gpst().

Referenced by rtksvrstart().

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◆ strinit()

void strinit ( stream_t * stream )

Initialize stream structure.

Parameters

[in,out] stream stream struct

Definition at line 3049 of file mrtk_stream.c.

References stream_tag::inb, stream_tag::inbt, stream_tag::inr, stream_tag::lock, stream_tag::mode, stream_tag::msg, stream_tag::outb, stream_tag::outbt, stream_tag::outr, stream_tag::path, stream_tag::port, rtk_initlock, stream_tag::state, stream_tag::tact, stream_tag::tick_i, stream_tag::tick_o, tracet(), and stream_tag::type.

Referenced by rtksvrinit(), and strsvrinit().

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◆ strinitcom()

void strinitcom ( void )

Initialize stream communication system.

Definition at line 3043 of file mrtk_stream.c.

References tracet().

Referenced by rtksvrstart(), and strsvrstart().

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◆ strlock()

void strlock ( stream_t * stream )

Lock stream.

Parameters

[in,out] stream stream struct

Definition at line 3313 of file mrtk_stream.c.

References stream_tag::lock, and rtk_lock.

Referenced by strclose(), strread(), strstat(), strstatx(), strsum(), and strwrite().

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◆ stropen()

int stropen	(	stream_t *	stream,
		int	type,
		int	mode,
		const char *	path )

Open stream.

Parameters

[in,out]	stream	stream struct
[in]	type	stream type (STR_???)
[in]	mode	stream mode (STR_MODE_?)
[in]	path	stream path

Returns: status (0:error,1:ok)

Definition at line 3173 of file mrtk_stream.c.

References stream_tag::inb, stream_tag::inbt, stream_tag::inr, stream_tag::mode, stream_tag::msg, openfile(), openftp(), openmembuf(), openntrip(), openntripc(), openserial(), opentcpcli(), opentcpsvr(), openudpcli(), openudpsvr(), stream_tag::outb, stream_tag::outbt, stream_tag::outr, stream_tag::path, stream_tag::port, stream_tag::state, STR_FILE, STR_FTP, STR_HTTP, STR_MEMBUF, STR_NTRIPCAS, STR_NTRIPCLI, STR_NTRIPSVR, STR_SERIAL, STR_TCPCLI, STR_TCPSVR, STR_UDPCLI, STR_UDPSVR, stream_tag::tick_i, stream_tag::tick_o, tickget(), tracet(), and stream_tag::type.

Referenced by rtksvropenstr(), rtksvrstart(), set_brate(), and strsvrstart().

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◆ strread()

int strread	(	stream_t *	stream,
		uint8_t *	buff,
		int	n )

Read data from stream.

Parameters

[in,out]	stream	stream struct
[out]	buff	data buffer
[in]	n	max data length (bytes)

Returns: data length (bytes)

Definition at line 3324 of file mrtk_stream.c.

References stream_tag::inb, stream_tag::inbt, stream_tag::inr, stream_tag::mode, stream_tag::msg, stream_tag::port, readfile(), readftp(), readmembuf(), readntrip(), readntripc(), readserial(), readtcpcli(), readtcpsvr(), readudpsvr(), STR_FILE, STR_FTP, STR_HTTP, STR_MEMBUF, STR_MODE_R, STR_NTRIPCAS, STR_NTRIPCLI, STR_NTRIPSVR, STR_SERIAL, STR_TCPCLI, STR_TCPSVR, STR_UDPSVR, strlock(), strunlock(), stream_tag::tact, stream_tag::tick_i, tickget(), tirate, tracet(), and stream_tag::type.

Referenced by rtksvrthread(), and strsvrthread().

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◆ strsendcmd()

void strsendcmd	(	stream_t *	stream,
		const char *	cmd )

Send receiver command to stream.

Parameters

[in,out]	stream	stream struct
[in]	cmd	receiver command

Definition at line 3760 of file mrtk_stream.c.

References gen_hex(), gen_nvs(), gen_stq(), gen_ubx(), set_brate(), sleepms(), strwrite(), and tracet().

Referenced by periodic_cmd(), periodic_cmd(), rtksvrstart(), rtksvrstop(), send_nmea(), strsvrstart(), and strsvrstop().

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◆ strsendnmea()

void strsendnmea	(	stream_t *	stream,
		const sol_t *	sol )

Send NMEA request to stream.

Parameters

[in,out]	stream	stream struct
[in]	sol	solution data

Definition at line 3703 of file mrtk_stream.c.

References outnmea_gga(), sol_t::rr, strwrite(), and tracet().

Referenced by send_nmea(), and strsvrthread().

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◆ strsetdir()

void strsetdir ( const char * dir )

Set FTP/HTTP local directory.

Parameters

[in] dir local directory

Definition at line 3658 of file mrtk_stream.c.

References localdir, and tracet().

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◆ strsetntripver()

void strsetntripver ( int ver )

Set default NTRIP version for new connections.

Parameters

[in] ver NTRIP version (0:auto, 1:v1, 2:v2)

When set to auto (0), the client tries NTRIP v2 first and falls back to v1 if the caster does not support it. Per-stream override is available via the ?ver=N query parameter in the stream path.

Definition at line 3678 of file mrtk_stream.c.

References ntrip_ver_default, and tracet().

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◆ strsetopt()

void strsetopt ( const int * opt )

Set stream options.

Parameters

[in] opt stream options (timeout/reconnect/rate/buffsize/fswapmargin)

Definition at line 3620 of file mrtk_stream.c.

References buffsize, fswapmargin, ticonnect, tirate, toinact, and tracet().

Referenced by strsvrstart().

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◆ strsetproxy()

void strsetproxy ( const char * addr )

Set HTTP/NTRIP proxy address.

Parameters

[in] addr proxy address

Definition at line 3668 of file mrtk_stream.c.

References proxyaddr, and tracet().

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◆ strsettimeout()

void strsettimeout	(	stream_t *	stream,
		int	toinact,
		int	tirecon )

Set stream timeout.

Parameters

[in,out]	stream	stream struct
[in]	toinact	inactive timeout (ms) (0:no timeout)
[in]	tirecon	reconnect interval (ms)

Definition at line 3637 of file mrtk_stream.c.

References stream_tag::port, STR_NTRIPCLI, STR_NTRIPSVR, STR_TCPCLI, tcpcli_t::tirecon, tcpcli_t::toinact, toinact, tracet(), and stream_tag::type.

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◆ strstat()

int strstat	(	stream_t *	stream,
		char *	msg )

Get stream status.

Parameters

[in]	stream	stream struct
[out]	msg	status message (NULL: no output)

Returns: stream status (-1:error,0:close,1:wait,2:connect,3:active)

Definition at line 3458 of file mrtk_stream.c.

References MAXSTRMSG, stream_tag::msg, stream_tag::port, stream_tag::state, statefile(), stateftp(), statemembuf(), statentrip(), statentripc(), stateserial(), statetcpcli(), statetcpsvr(), stateudpcli(), stateudpsvr(), STR_FILE, STR_FTP, STR_HTTP, STR_MEMBUF, STR_NTRIPCAS, STR_NTRIPCLI, STR_NTRIPSVR, STR_SERIAL, STR_TCPCLI, STR_TCPSVR, STR_UDPCLI, STR_UDPSVR, strlock(), strunlock(), stream_tag::tact, tickget(), TINTACT, tracet(), and stream_tag::type.

Referenced by rtksvrsstat(), and strsvrstat().

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◆ strstatx()

int strstatx	(	stream_t *	stream,
		char *	msg )

Get stream extended status.

Parameters

[in]	stream	stream struct
[out]	msg	status message (NULL: no output)

Returns: stream status

Definition at line 3523 of file mrtk_stream.c.

References stream_tag::port, stream_tag::state, statexfile(), statexftp(), statexmembuf(), statexntrip(), statexntripc(), statexserial(), statextcpcli(), statextcpsvr(), statexudpcli(), statexudpsvr(), STR_FILE, STR_FTP, STR_HTTP, STR_MEMBUF, STR_NTRIPCAS, STR_NTRIPCLI, STR_NTRIPSVR, STR_SERIAL, STR_TCPCLI, STR_TCPSVR, STR_UDPCLI, STR_UDPSVR, strlock(), strunlock(), stream_tag::tact, tickget(), TINTACT, tracet(), and stream_tag::type.

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◆ strsum()

void strsum	(	stream_t *	stream,
		uint64_t *	inb,
		int *	inr,
		uint64_t *	outb,
		int *	outr )

Get stream statistics summary.

Parameters

[in]	stream	stream struct
[out]	inb	input bytes (NULL: not output)
[out]	inr	input rate (bps) (NULL: not output)
[out]	outb	output bytes (NULL: not output)
[out]	outr	output rate (bps) (NULL: not output)

Definition at line 3589 of file mrtk_stream.c.

References stream_tag::inb, stream_tag::inr, stream_tag::outb, stream_tag::outr, strlock(), strunlock(), and tracet().

Referenced by strsvrstat().

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◆ strsvrinit()

void strsvrinit	(	strsvr_t *	svr,
		int	nout )

Definition at line 584 of file mrtk_streamsvr.c.

References strsvr_t::buff, strsvr_t::buffsize, strsvr_t::cmds_periodic, strsvr_t::conv, strsvr_t::cycle, strsvr_t::lock, strsvr_t::nmeacycle, strsvr_t::nmeapos, strsvr_t::npb, strsvr_t::nstr, strsvr_t::pbuf, strsvr_t::relayback, rtk_initlock, strsvr_t::state, strsvr_t::stream, strinit(), strsvr_t::strlog, strsvr_t::thread, strsvr_t::tick, and tracet().

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◆ strsvrstart()

int strsvrstart	(	strsvr_t *	svr,
		int *	opts,
		int *	strs,
		char **	paths,
		char **	logs,
		strconv_t **	conv,
		char **	cmds,
		char **	cmds_priodic,
		const double *	nmeapos )

Definition at line 656 of file mrtk_streamsvr.c.

References strsvr_t::buff, strsvr_t::buffsize, strsvr_t::cmds_periodic, strsvr_t::conv, strsvr_t::cycle, free, malloc, MAXSTRPATH, stream_tag::msg, strsvr_t::nmeacycle, strsvr_t::nmeapos, strsvr_t::nstr, strsvr_t::pbuf, strsvr_t::relayback, sleepms(), strsvr_t::state, STR_FILE, STR_MODE_R, STR_MODE_RW, STR_MODE_W, STR_NONE, strclose(), strsvr_t::stream, strinitcom(), strsvr_t::strlog, stropen(), strsendcmd(), strsetopt(), strsvrthread(), strwrite(), strsvr_t::thread, and tracet().

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◆ strsvrstat()

void strsvrstat	(	strsvr_t *	svr,
		int *	stat,
		int *	log_stat,
		uint64_t *	byte,
		int *	bps,
		char *	msg )

Get stream server status.

Parameters

[in]	svr	stream server
[out]	stat	status of each stream [svr->nstr]
[out]	log_stat	status of each stream log [svr->nstr]
[out]	byte	bytes received (stream 0) / sent (others) [svr->nstr]
[out]	bps	bit rate received / sent [svr->nstr]
[out]	msg	status messages

Definition at line 760 of file mrtk_streamsvr.c.

References MAXSTRMSG, strsvr_t::nstr, strsvr_t::stream, strsvr_t::strlog, strstat(), strsum(), and tracet().

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◆ strsvrstop()

void strsvrstop	(	strsvr_t *	svr,
		char **	cmds )

Definition at line 738 of file mrtk_streamsvr.c.

References strsvr_t::nstr, strsvr_t::state, strsvr_t::stream, strsendcmd(), strsvr_t::thread, and tracet().

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◆ strsync()

void strsync	(	stream_t *	stream1,
		stream_t *	stream2 )

Sync streams.

Parameters

[in,out]	stream1	stream struct 1
[in,out]	stream2	stream struct 2

Definition at line 3297 of file mrtk_stream.c.

References stream_tag::port, STR_FILE, syncfile(), and stream_tag::type.

Referenced by rtksvrstart().

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◆ strunlock()

void strunlock ( stream_t * stream )

Unlock stream.

Parameters

[in,out] stream stream struct

Definition at line 3314 of file mrtk_stream.c.

References stream_tag::lock, and rtk_unlock.

Referenced by strclose(), strread(), strstat(), strstatx(), strsum(), and strwrite().

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◆ strwrite()

int strwrite	(	stream_t *	stream,
		uint8_t *	buff,
		int	n )

Write data to stream.

Parameters

[in,out]	stream	stream struct
[in]	buff	data buffer
[in]	n	data length (bytes)

Returns: bytes written (0: nothing written or error; some stream types return -1 on error)

Definition at line 3394 of file mrtk_stream.c.

Referenced by strsendcmd(), and strsendnmea().

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Variable Documentation

◆ formatstrs

const char* formatstrs[]

extern

Definition at line 80 of file mrtk_stream.c.

Referenced by setopt_file().

Classes

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ MAXRCVFMT

◆ MSG_DISCONN

◆ STR_FILE

◆ STR_FTP

◆ STR_HTTP

◆ STR_MEMBUF

◆ STR_MODE_R

◆ STR_MODE_RW

◆ STR_MODE_W

◆ STR_NONE

◆ STR_NTRIPCAS

◆ STR_NTRIPCLI

◆ STR_NTRIPSVR

◆ STR_SERIAL

◆ STR_TCPCLI

◆ STR_TCPSVR

◆ STR_UDPCLI

◆ STR_UDPSVR

Typedef Documentation

◆ stream_t

Function Documentation

◆ strclose()

◆ strconvfree()

◆ strconvnew()

◆ strgettime()

◆ strinit()

◆ strinitcom()

◆ strlock()

◆ stropen()

◆ strread()

◆ strsendcmd()

◆ strsendnmea()

◆ strsetdir()

◆ strsetntripver()

◆ strsetopt()

◆ strsetproxy()

◆ strsettimeout()

◆ strstat()

◆ strstatx()

◆ strsum()

◆ strsvrinit()

◆ strsvrstart()

◆ strsvrstat()

◆ strsvrstop()

◆ strsync()

◆ strunlock()

◆ strwrite()

Variable Documentation

◆ formatstrs