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Maintenance: js_server

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Fix memory leaks.
Better use of whitespace.
This commit is contained in:
Scott Giese 2021-02-26 20:59:06 -06:00
parent 21330d2f31
commit 0ee3fd4ab6
1 changed files with 71 additions and 79 deletions
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78
utils/js_server/js_server.cxx
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@ -26,119 +26,111 @@
*/ */
#include <math.h> #include <math.h>
#include <stdio.h> #include <memory>
#include <stdint.h> #include <stdint.h>
#include <stdio.h>
#include <plib/netSocket.h> #include <plib/netSocket.h>
#include "FlightGear_js.h" #include "FlightGear_js.h"
void usage(char * progname) void usage(char* progname)
{ {
printf("This is an UDP based remote joystick server.\n"); printf("This is an UDP based remote joystick server.\n");
printf("usage: %s <hostname> <port>\n", progname); printf("usage: %s <hostname> <port>\n", progname);
} }
int main ( int argc, char ** argv ) int main(int argc, char** argv)
{ {
jsJoystick * js ;
float * ax;
int port = 16759; int port = 16759;
char * host; /* = "192.168.1.7"; */ char* host; /* = "192.168.1.7"; */
int activeaxes = 4; int activeaxes = 4;
if( argc != 3 ) if (argc != 3) {
{
usage(argv[0]); usage(argv[0]);
exit(1); exit(1);
} }
host = argv[1]; host = argv[1];
port = atoi(argv[2]); port = atoi(argv[2]);
jsInit () ; jsInit();
js = new jsJoystick ( 0 ) ; auto js = std::make_unique<jsJoystick>(0);
if ( js->notWorking () ) if (js->notWorking()) {
{ printf("no Joystick detected... exitting\n");
printf ( "no Joystick detected... exitting\n" ) ;
exit(1); exit(1);
} }
printf ( "Joystick is \"%s\"\n", js->getName() ) ; printf("Joystick is \"%s\"\n", js->getName());
int numaxes = js->getNumAxes(); int numaxes = js->getNumAxes();
ax = new float [ numaxes ] ; auto ax = std::make_unique<float[]>(numaxes);
activeaxes = numaxes; activeaxes = numaxes;
if( numaxes > 4 ) if (numaxes > 4) {
{
printf("max 4 axes joysticks supported at the moment, however %i axes were detected\nWill only use the first 4 axes!\n", numaxes); printf("max 4 axes joysticks supported at the moment, however %i axes were detected\nWill only use the first 4 axes!\n", numaxes);
activeaxes = 4; activeaxes = 4;
} }
// Must call this before any other net stuff // Must call this before any other net stuff
netInit( &argc,argv ); netInit(&argc, argv);
netSocket c; netSocket c;
if ( ! c.open( false ) ) { // open a UDP socket if (!c.open(false)) { // open a UDP socket
printf("error opening socket\n"); printf("error opening socket\n");
return -1; return -1;
} }
c.setBlocking( false ); c.setBlocking(false);
if ( c.connect( host, port ) == -1 ) { if (c.connect(host, port) == -1) {
printf("error connecting to %s:%d\n", host, port); printf("error connecting to %s:%d\n", host, port);
return -1; return -1;
} }
char packet[256] = "Hello world!"; char packet[256] = "Hello world!";
while(1) while (1) {
{
int b; int b;
int len = 0; int len = 0;
int axis = 0; int axis = 0;
js->read( &b, ax ); js->read(&b, ax.get());
for ( axis = 0 ; axis < activeaxes ; axis++ ) for (axis = 0; axis < activeaxes; axis++) {
{ int32_t axisvalue = (int32_t)(ax[axis] * 2147483647.0);
int32_t axisvalue = (int32_t)(ax[axis]*2147483647.0);
printf("axisval=%li\n", (long)axisvalue); printf("axisval=%li\n", (long)axisvalue);
memcpy(packet+len, &axisvalue, sizeof(axisvalue)); memcpy(packet + len, &axisvalue, sizeof(axisvalue));
len+=sizeof(axisvalue); len += sizeof(axisvalue);
} }
// fill emtpy values into packes when less than 4 axes // fill emtpy values into packes when less than 4 axes
for( ; axis < 4; axis++ ) for (; axis < 4; axis++) {
{
int32_t axisvalue = 0; int32_t axisvalue = 0;
memcpy(packet+len, &axisvalue, sizeof(axisvalue)); memcpy(packet + len, &axisvalue, sizeof(axisvalue));
len+=sizeof(axisvalue); len += sizeof(axisvalue);
} }
int32_t b_l = b; int32_t b_l = b;
memcpy(packet+len, &b_l, sizeof(b_l)); memcpy(packet + len, &b_l, sizeof(b_l));
len+=sizeof(b_l); len += sizeof(b_l);
const char * termstr = "\0\0\r\n"; const char* termstr = "\0\0\r\n";
memcpy(packet+len, termstr, 4); memcpy(packet + len, termstr, 4);
len += 4; len += 4;
c.send( packet, len, 0 ); c.send(packet, len, 0);
/* give other processes a chance */ /* give other processes a chance */
#ifdef _WIN32 #ifdef _WIN32
Sleep ( 1 ) ; Sleep(1);
#elif defined(sgi) #elif defined(sgi)
sginap ( 1 ) ; sginap(1);
#else #else
usleep ( 200 ) ; usleep(200);
#endif #endif
printf("."); printf(".");
fflush(stdout); fflush(stdout);
} }
return 0 ; return 0;
} }