#include <stdbool.h>
#include <dirent.h>
#include <errno.h>
#include <stdarg.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <limits.h>
#include <locale.h>
#include "glibwrapper.h"
#include "r3types.h"
#include "r3util.h"
#include "engine.h"
#include "grib.h"
#include "readgriball.h"
#include "polar.h"
#include "inline.h"
#include "option.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>

Include dependency graph for r3server.c:

Data Structures
struct	ClientRequest
	Client Request description. More...

struct	FileInfo
	Structure to store file information. More...

Macros
#define	SYNOPSYS "<port> \| -<option> [<parameter file>]"
	RCube is a routing software for sailing.

#define	MAX_SIZE_REQUEST 2048

#define	MAX_SIZE_RESOURCE_NAME 256

#define	PATTERN "GFS"

#define	MAX_SIZE_FEED_BACK 1024

#define	ADMIN_LEVEL 10

#define	BIG_BUFFER_SIZE (300*MILLION)

#define	MAX_SIZE_MESS 100000

#define	GPX_ROUTE_FILE_NAME "gpxroute.tmp"

Enumerations
enum	{ REQ_KILL = -1793 , REQ_TEST = 0 , REQ_ROUTING = 1 , REQ_COORD = 2 , REQ_FORBID = 3 , REQ_POLAR = 4 , REQ_GRIB = 5 , REQ_DIR = 6 , REQ_PAR_RAW = 7 , REQ_PAR_JSON = 8 , REQ_INIT = 9 , REQ_FEEDBACK = 10 , REQ_DUMP_FILE = 11 , REQ_NEAREST_PORT = 12 , REQ_MARKS = 13 , REQ_CHECK_GRIB = 14 , REQ_GPX_ROUTE = 15 , REQ_GRIB_DUMP = 16 }

Functions
static void	polygonToJson (MyPolygon po, char str, size_t maxLen)
	Generate Json array for polygon.

static bool	updateWindGrib (ClientRequest clientReq, char checkMessage, size_t maxLen)
	update Grib file if required

static bool	updateCurrentGrib (ClientRequest clientReq, char checkMessage, size_t maxLen)
	update current file if required

static double	approxSegmentLengthNm (double lat0, double lon0, double lat1, double lon1)
	Approximate great-circle segment length in nautical miles.

static bool	segmentOverSea (double lat0, double lon0, double lat1, double lon1)
	Check if the straight segment between (lat0, lon0) and (lat1, lon1) stays entirely over allowed sea areas.

static int	checkRoute (const SailRoute *route)
	Check that every consecutive segment of a route is fully over sea.

static void	forbidToJson (char *res, size_t maxLen)
	Exclusion zone is an array of polygons.

static char *	isochronesToStrCatJson (char *res, size_t maxLen)
	generate json description of isochrones.

static char *	isoDescToStrCatJson (char *res, size_t maxLen)
	generate json description of isochrones decriptor.

static char *	routeToJson (SailRoute route, bool isoc, bool isoDesc, char res, size_t maxLen)
	generate json description of track boats

static double	round4 (double x)

static void	infoCoordToJson (double lat, double lon, ClientRequest clientReq, char res, size_t maxLen)
	information associated to coord (lat lon) isSea, isSeaTolerant, grib wind and current

static bool	getRealIPAddress (const char headers, char clientAddress, size_t bufferSize)
	Retrieves the real client IP address from HTTP headers.

static char *	extractUserAgent (const char *saveBuffer)
	extract user agent

static int	extractLevel (const char *buffer)
	extract level

static bool	allowedLevel (ClientRequest *clientReq)
	compare level of authorization with request

static int	compareByName (const void a, const void b)
	Comparator to sort by name (ascending order)

static int	compareByMtime (const void a, const void b)
	Comparator to sort by modification date (most recent first)

static bool	matchFilter (const char filename, const char *filter)
	Checks if the filename matches one of the suffixes in the filter.

static char *	nearestPortToStrJson (double lat, double lon, char *out, size_t maxLen)
	return neareAst port to lat, lon

static char *	jsonEscapeStrdup (const char *s)
	Escape JSON string ; malloc(), to free()

static char *	listDirToStrJson (char root, char dir, bool sortByName, const char pattern, const char filter, char out, size_t maxLen)

static bool	initContext (const char parameterFileName, const char pattern)
	Make initialization return false if readParam or readGribAll fail.

static const char *	getCurrentDate ()
	date for logging

static void	handleFeedbackRequest (const char fileName, const char date, const char clientIPAddress, const char string)
	store feedback information

static void	logRequest (const char fileName, const char date, int serverPort, const char remote_addr, char dataReq, const char userAgent, ClientRequest client, double duration)
	log client Request side effect: dataReq is modified

static bool	decodeHttpReq (const char req, ClientRequest clientReq)
	decode request from client and fill ClientRequest structure return true if correct false if impossible to decode

static bool	checkParamAndUpdate (ClientRequest clientReq, char checkMessage, size_t maxLen)
	check validity of parameters

static const char *	getMimeType (const char *path)
	Translate extension in MIME type.

static void	serveStaticFile (int client_socket, const char *requested_path)
	serve static file

int	memoryUsage (void)
	Return the current memory usage (resident set size) in kilobytes.

static char *	testToJson (int serverPort, const char clientIP, const char userAgent, int level, char *out, size_t maxLen)
	Provide system information.

void	sendBinaryResponse (int sock, const void data, size_t len, const char shortnames)
	send over network binary data

static void	buildInitialOfShortNameList (const Zone zone, char str, size_t len)
	build list of short names.

static bool	launchAction (int serverPort, int sock, ClientRequest clientReq, const char date, const char clientIPAddress, const char userAgent, char *outBuffer, size_t maxLen)
	launch action and returns outBuffer after execution

static int	sendAll (int fd, const void *buf, size_t len)
	robust send

static bool	handleClient (int serverPort, int clientFd, struct sockaddr_in *client_addr)
	Handle client connection and launch actions.

int	main (int argc, char *argv[])
	main server first argument (mandatory): port number second argument (optionnal): parameter file

Variables
char *	bigBuffer = NULL

const char *	filter [] = {".csv", ".pol", ".grb", ".grb2", ".log", ".txt", ".par", ".yaml", ".json", NULL}

const int	typeLevel [16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}

char	parameterFileName [MAX_SIZE_FILE_NAME]

ClientRequest	clientReq

Macro Definition Documentation

◆ ADMIN_LEVEL

#define ADMIN_LEVEL 10

Definition at line 40 of file r3server.c.

◆ BIG_BUFFER_SIZE

#define BIG_BUFFER_SIZE (300*MILLION)

Definition at line 41 of file r3server.c.

◆ GPX_ROUTE_FILE_NAME

#define GPX_ROUTE_FILE_NAME "gpxroute.tmp"

Definition at line 43 of file r3server.c.

◆ MAX_SIZE_FEED_BACK

#define MAX_SIZE_FEED_BACK 1024

Definition at line 39 of file r3server.c.

◆ MAX_SIZE_MESS

#define MAX_SIZE_MESS 100000

Definition at line 42 of file r3server.c.

◆ MAX_SIZE_REQUEST

#define MAX_SIZE_REQUEST 2048

Definition at line 36 of file r3server.c.

◆ MAX_SIZE_RESOURCE_NAME

#define MAX_SIZE_RESOURCE_NAME 256

Definition at line 37 of file r3server.c.

◆ PATTERN

#define PATTERN "GFS"

Definition at line 38 of file r3server.c.

◆ SYNOPSYS

#define SYNOPSYS "<port> | -<option> [<parameter file>]"

RCube is a routing software for sailing.

It computes the optimal route from a starting point (pOr) to a destination point (pDest) at a given START_TIME, using GRIB weather data and a boat polar diagram. to launch : r3server <port number> [parameter file]

Definition at line 35 of file r3server.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
REQ_KILL
REQ_TEST
REQ_ROUTING
REQ_COORD
REQ_FORBID
REQ_POLAR
REQ_GRIB
REQ_DIR
REQ_PAR_RAW
REQ_PAR_JSON
REQ_INIT
REQ_FEEDBACK
REQ_DUMP_FILE
REQ_NEAREST_PORT
REQ_MARKS
REQ_CHECK_GRIB
REQ_GPX_ROUTE
REQ_GRIB_DUMP

Definition at line 50 of file r3server.c.

Function Documentation

◆ allowedLevel()

static bool allowedLevel ( ClientRequest * clientReq )

static

compare level of authorization with request

Definition at line 579 of file r3server.c.

References ADMIN_LEVEL, clientReq, ClientRequest::level, ClientRequest::model, REQ_KILL, ClientRequest::type, and typeLevel.

Referenced by handleClient().

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◆ approxSegmentLengthNm()

static double approxSegmentLengthNm	(	double	lat0,
		double	lon0,
		double	lat1,
		double	lon1
	)

static

Approximate great-circle segment length in nautical miles.

This function estimates the distance between two geographic points (lat0, lon0) and (lat1, lon1) in nautical miles (NM) using a local equirectangular projection. For routing validation this is accurate enough and cheaper than a full haversine.

Latitudes and longitudes are expressed in decimal degrees.

Returns: Approximate distance in nautical miles.

Definition at line 198 of file r3server.c.

References DEG_TO_RAD.

Referenced by segmentOverSea().

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◆ buildInitialOfShortNameList()

static void buildInitialOfShortNameList	(	const Zone *	zone,
		char *	str,
		size_t	len
	)

static

build list of short names.

Only initials. Result can be uv, uvg, uvw, uvwg. uv mandatory. Response is false if not u and v

Definition at line 1262 of file r3server.c.

References isPresentGrib(), uvPresentGrib(), and zone.

Referenced by launchAction().

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◆ checkParamAndUpdate()

static bool checkParamAndUpdate	(	ClientRequest *	clientReq,
		char *	checkMessage,
		size_t	maxLen
	)

static

check validity of parameters

Definition at line 973 of file r3server.c.

References Par::allwaysSea, Pp::amure, ClientRequest::boats, buildRootName(), clientReq, ClientRequest::cogStep, Par::cogStep, competitors, ClientRequest::constCurrentD, Par::constCurrentD, ClientRequest::constCurrentS, Par::constCurrentS, ClientRequest::constWave, Par::constWave, ClientRequest::constWindTwd, Par::constWindTwd, ClientRequest::constWindTws, Par::constWindTws, Zone::dataDate, Zone::dataTime, ClientRequest::dayEfficiency, Par::dayEfficiency, ClientRequest::epochStart, ClientRequest::forbid, g_path_get_basename(), g_strlcpy, gribDateTimeToEpoch(), Par::gribFileName, ClientRequest::gribName, hasSlash(), ClientRequest::initialAmure, isInZone(), isSeaTolerant(), ClientRequest::jFactor, Par::jFactor, ClientRequest::kFactor, Par::kFactor, ClientRequest::lat, Pp::lat, WayPoint::lat, Competitor::lat, Zone::latMax, Zone::latMin, ClientRequest::lon, Pp::lon, WayPoint::lon, Competitor::lon, Zone::lonLeft, Zone::lonRight, MAX, MAX_SIZE_DIR_NAME, MAX_SIZE_FILE_NAME, MAX_SIZE_NAME, ClientRequest::maxWind, Par::maxWind, ClientRequest::model, mostRecentFile(), ClientRequest::motorSpeed, Par::motorSpeed, WayPointList::n, CompetitorsList::n, ClientRequest::name, Competitor::name, name, ClientRequest::nBoats, ClientRequest::nightEfficiency, Par::nightEfficiency, ClientRequest::nSectors, Par::nSectors, Zone::nTimeStamp, ClientRequest::nWp, par, Par::pDest, ClientRequest::penalty0, Par::penalty0, ClientRequest::penalty1, Par::penalty1, ClientRequest::penalty2, Par::penalty2, Par::polarFileName, ClientRequest::polarName, polMat, Par::pOr, ClientRequest::rangeCog, Par::rangeCog, readPolar(), sailPolMat, ClientRequest::staminaVR, Par::staminaVR, Par::startTimeInHours, CompetitorsList::t, WayPointList::t, ClientRequest::threshold, Par::threshold, Zone::timeStamp, ClientRequest::timeStep, tIsSea, Par::tStep, updateCurrentGrib(), updateWindGrib(), Par::wavePolFileName, wavePolMat, ClientRequest::wavePolName, wayPoints, ClientRequest::withCurrent, Par::withCurrent, ClientRequest::withWaves, Par::withWaves, Par::workingDir, ClientRequest::wp, ClientRequest::xWind, Par::xWind, and zone.

Referenced by launchAction().

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◆ checkRoute()

static int checkRoute ( const SailRoute * route )

static

Check that every consecutive segment of a route is fully over sea.

The route is assumed to be an ordered list of waypoints. For each pair of consecutive waypoints, segmentOverSea() is called. If any segment crosses land or a forbidden area, the function returns false.

Parameters

route pointer to SailRoute.

Returns: -1 if all segments are OK (sea only); i index of the first invalid segment [i -> i+1]

Definition at line 277 of file r3server.c.

References SailPoint::lat, SailPoint::lon, SailRoute::n, route, segmentOverSea(), and SailRoute::t.

Referenced by routeToJson().

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◆ compareByMtime()

static int compareByMtime	(	const void *	a,
		const void *	b
	)

static

Comparator to sort by modification date (most recent first)

Definition at line 601 of file r3server.c.

References FileInfo::mtime, and FileInfo::name.

Referenced by listDirToStrJson().

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◆ compareByName()

static int compareByName	(	const void *	a,
		const void *	b
	)

static

Comparator to sort by name (ascending order)

Definition at line 595 of file r3server.c.

References FileInfo::name.

Referenced by listDirToStrJson().

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◆ decodeHttpReq()

static bool decodeHttpReq	(	const char *	req,
		ClientRequest *	clientReq
	)

static

decode request from client and fill ClientRequest structure return true if correct false if impossible to decode

Definition at line 858 of file r3server.c.

References ClientRequest::boats, clientReq, ClientRequest::cogStep, ClientRequest::constCurrentD, ClientRequest::constCurrentS, ClientRequest::constWave, ClientRequest::constWindTwd, ClientRequest::constWindTws, ClientRequest::currentGribName, ClientRequest::dayEfficiency, ClientRequest::dirName, ClientRequest::epochStart, ClientRequest::feedback, ClientRequest::fileName, ClientRequest::forbid, g_str_has_prefix(), g_strfreev(), g_strlcpy, g_strsplit(), g_strstrip(), ClientRequest::gribName, ClientRequest::initialAmure, ClientRequest::isoc, ClientRequest::isoDesc, ClientRequest::jFactor, ClientRequest::kFactor, ClientRequest::lat, ClientRequest::lon, MAX_N_COMPETITORS, MAX_N_WAY_POINT, MAX_SIZE_NAME, ClientRequest::maxWind, ClientRequest::model, ClientRequest::motorSpeed, ClientRequest::name, name, ClientRequest::nBoats, ClientRequest::nightEfficiency, ClientRequest::nSectors, ClientRequest::nWp, ClientRequest::penalty0, ClientRequest::penalty1, ClientRequest::penalty2, ClientRequest::polarName, ClientRequest::rangeCog, ClientRequest::sortByName, ClientRequest::staminaVR, ClientRequest::threshold, ClientRequest::timeStep, ClientRequest::type, ClientRequest::wavePolName, ClientRequest::withCurrent, ClientRequest::withWaves, ClientRequest::wp, and ClientRequest::xWind.

Referenced by handleClient().

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◆ extractLevel()

static int extractLevel ( const char * buffer )

static

extract level

Definition at line 570 of file r3server.c.

References ADMIN_LEVEL, Par::authent, and par.

Referenced by handleClient().

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◆ extractUserAgent()

static char * extractUserAgent ( const char * saveBuffer )

static

extract user agent

Definition at line 556 of file r3server.c.

Referenced by handleClient().

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◆ forbidToJson()

static void forbidToJson	(	char *	res,
		size_t	maxLen
	)

static

Exclusion zone is an array of polygons.

Definition at line 286 of file r3server.c.

References forbidZones, Par::nForbidZone, par, and polygonToJson().

Referenced by launchAction().

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◆ getCurrentDate()

static const char * getCurrentDate ( )

static

date for logging

Definition at line 813 of file r3server.c.

Referenced by handleClient().

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◆ getMimeType()

static const char * getMimeType ( const char * path )

static

Translate extension in MIME type.

Definition at line 1115 of file r3server.c.

Referenced by serveStaticFile().

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◆ getRealIPAddress()

static bool getRealIPAddress	(	const char *	headers,
		char *	clientAddress,
		size_t	bufferSize
	)

static

Retrieves the real client IP address from HTTP headers.

Parameters

headers	A string containing the HTTP headers.
clientAddress	Buffer to store the client's IP address.
bufferSize	Size of the clientAddress buffer.

Returns: true if the IP address was successfully found and stored, false if not found or error.

Definition at line 530 of file r3server.c.

References g_strlcpy, and g_strstrip().

Referenced by handleClient().

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◆ handleClient()

static bool handleClient	(	int	serverPort,
		int	clientFd,
		struct sockaddr_in *	client_addr
	)

static

Handle client connection and launch actions.

Definition at line 1466 of file r3server.c.

References allowedLevel(), BIG_BUFFER_SIZE, bigBuffer, clientReq, decodeHttpReq(), extractLevel(), extractUserAgent(), g_strlcpy, getCurrentDate(), getRealIPAddress(), launchAction(), ClientRequest::level, Par::logFileName, logRequest(), MAX_SIZE_LINE, MAX_SIZE_REQUEST, monotonic(), par, sendAll(), and serveStaticFile().

Referenced by main().

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◆ handleFeedbackRequest()

static void handleFeedbackRequest	(	const char *	fileName,
		const char *	date,
		const char *	clientIPAddress,
		const char *	string
	)

static

store feedback information

Definition at line 822 of file r3server.c.

Referenced by launchAction().

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◆ infoCoordToJson()

static void infoCoordToJson	(	double	lat,
		double	lon,
		ClientRequest *	clientReq,
		char *	res,
		size_t	maxLen
	)

static

information associated to coord (lat lon) isSea, isSeaTolerant, grib wind and current

Definition at line 485 of file r3server.c.

References clientReq, currentZone, Zone::dataDate, Zone::dataTime, findWindGrib(), gribDateTimeToEpoch(), Par::gribFileName, isInZone(), isSea(), isSeaTolerant(), MAX_SIZE_MESS, Zone::nTimeStamp, par, round4(), Zone::timeStamp, tIsSea, tMax, updateWindGrib(), and zone.

Referenced by launchAction().

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◆ initContext()

static bool initContext	(	const char *	parameterFileName,
		const char *	pattern
	)

static

Make initialization
return false if readParam or readGribAll fail.

Definition at line 760 of file r3server.c.

References Par::currentGribFileName, currentZone, Zone::dataDate, Zone::dataTime, SailRoute::destinationReached, gribDateTimeToStr(), Par::gribFileName, hasSlash(), Par::isSeaFileName, MAX_SIZE_DIR_NAME, MAX_SIZE_LINE, MAX_SIZE_TEXT, mostRecentFile(), Par::mostRecentGrib, SailRoute::n, nIsoc, par, parameterFileName, Par::polarFileName, polMat, readGribAll(), readIsSea(), readParam(), readPolar(), route, sailPolMat, updateIsSeaWithForbiddenAreas(), Par::wavePolFileName, wavePolMat, Par::web, WIND, Par::workingDir, and zone.

Referenced by launchAction(), and main().

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◆ isochronesToStrCatJson()

static char * isochronesToStrCatJson	(	char *	res,
		size_t	maxLen
	)

static

generate json description of isochrones.

Concatenate it to res

Definition at line 302 of file r3server.c.

References Pp::father, IsoDesc::first, g_strlcat, Pp::id, isocArray, isoDesc, Pp::lat, Pp::lon, MAX_SIZE_ISOC, nIsoc, and IsoDesc::size.

Referenced by routeToJson().

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◆ isoDescToStrCatJson()

static char * isoDescToStrCatJson	(	char *	res,
		size_t	maxLen
	)

static

generate json description of isochrones decriptor.

Conatenate te description to res

Definition at line 343 of file r3server.c.

References g_strlcat, isoDesc, and nIsoc.

Referenced by routeToJson().

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◆ jsonEscapeStrdup()

static char * jsonEscapeStrdup ( const char * s )

static

Escape JSON string ; malloc(), to free()

Definition at line 631 of file r3server.c.

Referenced by listDirToStrJson().

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◆ launchAction()

static bool launchAction	(	int	serverPort,
		int	sock,
		ClientRequest *	clientReq,
		const char *	date,
		const char *	clientIPAddress,
		const char *	userAgent,
		char *	outBuffer,
		size_t	maxLen
	)

static

launch action and returns outBuffer after execution

Definition at line 1275 of file r3server.c.

References bigBuffer, ClientRequest::boats, buildInitialOfShortNameList(), buildRootName(), buildUVGWarray(), checkGribToStr(), checkParamAndUpdate(), clientReq, competitors, ClientRequest::currentGribName, ClientRequest::dirName, exportRouteToGpx(), ClientRequest::feedback, Par::feedbackFileName, ClientRequest::fileName, filter, forbidToJson(), g_strlcpy, GPX_ROUTE_FILE_NAME, ClientRequest::gribName, gribToStrJson(), handleFeedbackRequest(), hasSlash(), infoCoordToJson(), initContext(), ClientRequest::isoc, ClientRequest::isoDesc, ClientRequest::lat, ClientRequest::level, listDirToStrJson(), ClientRequest::lon, Par::marksFileName, MAX_SIZE_DIR_NAME, MAX_SIZE_FILE_NAME, MAX_SIZE_NAME, MAX_SIZE_TEXT, ClientRequest::model, mostRecentFile(), SailRoute::n, ClientRequest::nBoats, nearestPortToStrJson(), normalizeSpaces(), ClientRequest::nWp, par, parameterFileName, paramToStrJson(), PATTERN, Par::polarFileName, ClientRequest::polarName, polToStrJson(), readMarkCSVToJson(), readTextFile(), REQ_CHECK_GRIB, REQ_COORD, REQ_DIR, REQ_DUMP_FILE, REQ_FEEDBACK, REQ_FORBID, REQ_GPX_ROUTE, REQ_GRIB, REQ_GRIB_DUMP, REQ_INIT, REQ_KILL, REQ_MARKS, REQ_NEAREST_PORT, REQ_PAR_JSON, REQ_PAR_RAW, REQ_POLAR, REQ_ROUTING, REQ_TEST, SailRoute::ret, route, routeToJson(), ROUTING_ERROR, routingLaunch(), CompetitorsList::runIndex, sendBinaryResponse(), ClientRequest::sortByName, TEMP_FILE_NAME, testToJson(), tGribData, ClientRequest::type, updateCurrentGrib(), updateWindGrib(), WIND, Par::workingDir, ClientRequest::wp, writeParam(), and zone.

Referenced by handleClient().

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◆ listDirToStrJson()

static char * listDirToStrJson	(	char *	root,
		char *	dir,
		bool	sortByName,
		const char *	pattern,
		const char **	filter,
		char *	out,
		size_t	maxLen
	)

static

Function: listDirToJson

Lists the regular files in the directory constructed from root/dir, applies a pattern filter ans a suffix filter if provided, sorts the list either by name or by modification date (most recent first), and generates a JSON string containing an array of arrays in the format [filename, size, modification date].

In case of an error (e.g., unable to open the directory), the error is printed to the console and a corresponding JSON error response is returned.

Definition at line 675 of file r3server.c.

References compareByMtime(), compareByName(), filter, g_str_has_prefix(), g_strlcat, jsonEscapeStrdup(), matchFilter(), MAX_SIZE_LINE, FileInfo::mtime, FileInfo::name, name, and FileInfo::size.

Referenced by launchAction().

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◆ logRequest()

static void logRequest	(	const char *	fileName,
		const char *	date,
		int	serverPort,
		const char *	remote_addr,
		char *	dataReq,
		const char *	userAgent,
		ClientRequest *	client,
		double	duration
	)

static

log client Request side effect: dataReq is modified

Definition at line 834 of file r3server.c.

References g_strdelimit(), g_strlcpy, g_strstrip(), MAX_SIZE_LINE, and ClientRequest::type.

Referenced by handleClient().

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◆ main()

int main	(	int	argc,
		char *	argv[]
	)

main server first argument (mandatory): port number second argument (optionnal): parameter file

Definition at line 1574 of file r3server.c.

References BIG_BUFFER_SIZE, bigBuffer, clientReq, CURRENT, g_strlcpy, handleClient(), initContext(), isocArray, isoDesc, monotonic(), optionManage(), parameterFileName, PARAMETERS_FILE, REQ_KILL, route, SYNOPSYS, SailRoute::t, tGribData, tIsSea, ClientRequest::type, and WIND.

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◆ matchFilter()

static bool matchFilter	(	const char *	filename,
		const char **	filter
	)

static

Checks if the filename matches one of the suffixes in the filter.

Definition at line 609 of file r3server.c.

References filter, and g_str_has_suffix().

Referenced by listDirToStrJson().

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◆ memoryUsage()

int memoryUsage ( void )

Return the current memory usage (resident set size) in kilobytes.

Returns: int Memory usage in KB, or -1 on error.

Definition at line 1187 of file r3server.c.

Referenced by testToJson().

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◆ nearestPortToStrJson()

static char * nearestPortToStrJson	(	double	lat,
		double	lon,
		char *	out,
		size_t	maxLen
	)

static

return neareAst port to lat, lon

Definition at line 620 of file r3server.c.

References MAX_SIZE_NAME, nearestPort(), par, and Par::tidesFileName.

Referenced by launchAction().

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◆ polygonToJson()

static void polygonToJson	(	MyPolygon *	po,
		char *	str,
		size_t	maxLen
	)

static

Generate Json array for polygon.

Definition at line 125 of file r3server.c.

References Point::lat, Point::lon, MyPolygon::n, and MyPolygon::points.

Referenced by forbidToJson().

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◆ round4()

static double round4 ( double x )

inlinestatic

Definition at line 477 of file r3server.c.

Referenced by infoCoordToJson().

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◆ routeToJson()

static char * routeToJson	(	SailRoute *	route,
		bool	isoc,
		bool	isoDesc,
		char *	res,
		size_t	maxLen
	)

static

generate json description of track boats

Definition at line 369 of file r3server.c.

References SailRoute::babordDist, SailRoute::calculationTime, checkRoute(), SailRoute::competitorIndex, competitors, Par::currentGribFileName, SailRoute::destinationReached, SailRoute::duration, SailPoint::father, fSailName(), fTwa(), SailPoint::g, g_path_get_basename(), g_strlcat, Par::gribFileName, SailPoint::id, isochronesToStrCatJson(), SailRoute::isocTimeStep, isoDesc, isoDescToStrCatJson(), SailRoute::lastPointInfo, SailRoute::lastStepDuration, SailRoute::lastStepWpDuration, SailPoint::lat, Zone::latMax, Zone::latMin, SailPoint::lCap, SailPoint::ld, LIMIT_SOG, SailPoint::lon, Zone::lonLeft, Zone::lonRight, MAX_SIZE_MESS, MAX_SIZE_NAME, SailPoint::motor, SailRoute::motorDist, SailRoute::n, Competitor::name, SailRoute::nAmureChange, SailRoute::nSailChange, SailRoute::nWayPoints, SailPoint::oCap, SailPoint::od, par, SailRoute::polarFileName, SailRoute::ret, route, SailPoint::sail, SailPoint::sog, SailPoint::stamina, CompetitorsList::t, SailRoute::t, SailPoint::time, SailPoint::toIndexWp, SailRoute::totDist, SailRoute::tribordDist, SailPoint::twd, SailPoint::tws, SailPoint::w, Par::wavePolFileName, and zone.

Referenced by launchAction().

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◆ segmentOverSea()

static bool segmentOverSea	(	double	lat0,
		double	lon0,
		double	lat1,
		double	lon1
	)

static

Check if the straight segment between (lat0, lon0) and (lat1, lon1) stays entirely over allowed sea areas.

The function samples intermediate points along the geodesic segment (approximated as a straight interpolation in lat/lon space) and calls isSea(lat, lon) on each sample.

Rationale:

Each endpoint is already supposed to be valid water, but in practice a straight line between two valid nodes may cross land (e.g. cutting across a headland or an island).
We discretize the segment into small steps in nautical miles (NM). Finer step -> safer, but more calls to isSea().

Assumptions:

isSea(lat, lon) is fast (array lookup).
Lat/lon variations between the two points are small enough that linear interpolation in degrees is acceptable for validation.

Parameters