asyncburp: boilerplate

.gitignore

@@ -21,5 +21,6 @@ tools/udp-dumper
 tools/*.o
 
 specific/joy2laser
+specific/asyncburp
 specific/*.o
 

specific/Makefile

@@ -2,8 +2,9 @@
 
 OPTS = -Wall -g -DDEBUG_LEVEL=0
 
+all:	joy2laser asyncburp
 
-all:	joy2laser
+#			--------------------------------------------
 
 laserblast.o:	laserblast.c Makefile
 	gcc -c ${OPTS} $< 
@@ -11,4 +12,17 @@ laserblast.o:	laserblast.c Makefile
 joy2laser:	joy2laser.c Makefile laserblast.o
 	gcc ${OPTS} $< laserblast.o ../functions/libpocosc.a -llo -o $@
 
+#			--------------------------------------------
+
+asyncburp.o:	asyncburp.c burpmsg.h Makefile
+	gcc -c ${OPTS} $<
+
+burpmsg.o:	burpmsg.c burpmsg.h Makefile
+	gcc -c ${OPTS} $<
+
+asyncburp:	asyncburp.o burpmsg.o
+	gcc ${OPTS} $< burpmsg.o -llo -o $@
+
+#			--------------------------------------------
+
 

specific/asyncburp.c

@@ -0,0 +1,96 @@
+/*
+ *		Joystick to Laser
+ *		async version, with continuous refresh
+ *				post Sonoptic 2020
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <unistd.h>
+
+#include  <lo/lo.h>			/* OSC library */
+
+#include  "laserblast.h"
+
+#include  "burpmsg.h"
+
+/* ------------------------------------------------------------------- */
+
+#define	LOCAL_PORT	"9000"
+#define REMOTE_HOST	"localhost"			/* just loling */
+#define REMOTE_PORT	"9999"
+
+/* ------------------------------------------------------------------- */
+
+int		verbosity;		/* global variable */
+
+/* ------------------------------------------------------------------- */
+static int bloub(void)
+{
+BurpMsg			message;
+
+
+message.magic = BURP_MAGIC;
+
+display_burp_msg(&message, NULL);
+
+return 0;
+}
+/* ------------------------------------------------------------------- */
+static int help(int krkrkr)
+{
+puts("HELP ME !");
+puts("\t-p NNN\t\tlocal listening port");
+puts("\t-R a.b.c.d\tremote host");
+puts("\t-P NNN\t\tremote port");
+puts("\t-L N\t\tlaser number");
+puts("\t-S N\t\tscene number");
+puts("\t-v\t\tincrease verbosity");
+return 1;
+}
+/* ------------------------------------------------------------------- */
+
+int main(int argc, char *argv[])
+{
+char			*local_port  = LOCAL_PORT;
+char			*remote_host = REMOTE_HOST;
+char			*remote_port = REMOTE_PORT;
+
+int			lasernumber, scenenumber;
+
+int			opt;
+
+fprintf(stderr, "%s compiled %s at %s\n",argv[0],  __DATE__, __TIME__);
+
+/* set some default values */
+
+lasernumber = scenenumber = 0;
+
+/* parsing command line options */
+while ((opt = getopt(argc, argv, "hp:vL:S:R:P:")) != -1) {
+	switch (opt) {
+		case 'h':	if (help(0)) exit(1);		break;
+		case 'p':	local_port = optarg;		break;
+		case 'R':	remote_host = optarg;		break;
+		case 'P':	remote_port = optarg;		break;
+		case 'L':	lasernumber = atoi(optarg);	break;
+		case 'S':	scenenumber = atoi(optarg);	break;
+		case 'v':	verbosity++;			break;
+		}
+	}
+
+if (verbosity) {
+	fprintf(stderr, "-------------: %s\n", argv[0]);
+	fprintf(stderr, "pid          : %d\n", getpid());
+	fprintf(stderr, "local port   : %s\n", local_port);
+	fprintf(stderr, "remote       : %s %s\n", remote_host, remote_port);
+	fprintf(stderr, "scn/laser    : %d %d\n", scenenumber, lasernumber);
+	}
+
+			bloub();
+
+return 2;
+}
+/* ------------------------------------------------------------------- */
+
+

specific/burpmsg.c

@@ -0,0 +1,95 @@
+/*
+ *		BURPMSG.C
+ */
+
+#include  <stdio.h>
+#include  <stdint.h>
+#include  <sys/select.h>
+#include  <unistd.h>
+
+
+#include  "burpmsg.h"
+
+/* ------------------------------------------------------------------- */
+int display_burp_msg(BurpMsg *header, void *data)
+{
+char			*txt_type;
+
+if (BURP_MAGIC != header->magic) {
+	fprintf(stderr, "burpmsg at %p : invalid magic %08X\n",
+				header,		header->magic);
+	return -1;
+	}
+
+txt_type = "wtf?";			/* nice default value */
+
+switch(header->msgtype) {
+
+	case BURP_RESET:
+		txt_type = "reset";
+		break;
+	case BURP_SETSIZE:
+		txt_type = "setsize";
+		break;
+	case BURP_LASER:
+		txt_type = "laser";
+		break;
+	case BURP_SCENE:
+		txt_type = "scene";
+		break;
+
+	default:
+		fprintf(stderr, "burpmsg at %p : invalid msgtype %d\n",
+				header,		header->msgtype);
+	return -1;
+	}
+
+fprintf(stderr, "%4d %12s   %9d   %3d\n", 
+		header->msgtype, txt_type, header->serial, header->szdata);
+
+return 0;
+}
+/* ------------------------------------------------------------------- */
+void la_grande_boucle( int fromfifo )
+{
+struct timeval		tv;
+fd_set			fds;
+int			resval, foo;
+BurpMsg			message;
+
+for(;;)	{			/* start of infinite loop */
+
+	FD_ZERO(&fds);
+	FD_SET(fromfifo, &fds);
+	tv.tv_sec  = 1;
+	tv.tv_usec = 0;
+
+	resval = select(1, &fds, NULL, NULL, &tv);
+
+	if (-1 == resval) {
+		perror("select()");
+		/* ABORTING HERE ? */
+		continue;
+		}
+
+	if (resval) {
+		/* message available */
+		foo = read(fromfifo, &message, sizeof(BurpMsg));
+		if (sizeof(BurpMsg) != foo) {
+			fprintf(stderr, "err: %d read, %lu expected\n",
+						foo,	sizeof(BurpMsg));
+			}
+		display_burp_msg(&message, NULL);
+		}
+	else	{
+		/* got a time out */
+		fprintf(stderr, "TIMEOUT\n");
+		}
+
+	}
+
+/* NOT REACHED */
+
+}
+/* ------------------------------------------------------------------- */
+

specific/burpmsg.h

@@ -0,0 +1,30 @@
+/*
+ *		BURPMSG.H
+ */
+
+
+/* ------------------------------------------------------------------- */
+
+typedef struct	{
+	uint32_t		magic;
+	uint32_t		serial;
+	uint16_t		msgtype;
+	uint16_t		szdata;
+	} BurpMsg;
+
+#define		BURP_MAGIC	0x98769876
+
+/*	message type		*/
+#define		BURP_RESET	1
+#define		BURP_SETSIZE	2
+#define		BURP_LASER	3
+#define		BURP_SCENE	4
+#define		BURP_COLOR	5
+
+/* ------------------------------------------------------------------- */
+
+int display_burp_msg(BurpMsg *header, void *data);
+
+/* ------------------------------------------------------------------- */
+
+

specific/laserblast.c

@@ -24,6 +24,9 @@ static int		x_scale, y_scale;
 extern int		verbosity;
 
 /* ------------------------------------------------------------------- */
+/*
+ *	- prepare OSC transmission
+ */
 int	blast_init(char *host, char *port, int scene, int laser)
 {
 #if DEBUG_LEVEL
@@ -31,7 +34,6 @@ fprintf(stderr, ">>> %s ( '%s:%p' %d %d )\n", __func__, host, port,
 							scene, laser);
 #endif
 
-/* prepare OSC transmission */
 lo_addr =  lo_address_new(host, port);
 if (verbosity) {
 	fprintf(stderr, "%s is sending to %s:%s\n", __FILE__, host, port);
@@ -118,6 +120,3 @@ return 0;
 /* ------------------------------------------------------------------- */
 /* ------------------------------------------------------------------- */
 
-	
-
-