etherlabmaster: examples/user/main.c@d64ed42e0d11 (annotated)

1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	1	/*****************************************************************************
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	2	*
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	3	* $Id$
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	4	*
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	5	****************************************************************************/
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	6
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	7	#include <errno.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	8	#include <signal.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	9	#include <stdio.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	10	#include <string.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	11	#include <sys/resource.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	12	#include <sys/time.h>
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	13	#include <sys/types.h>
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	14	#include <unistd.h>
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	15
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	16	#include "ecrt.h"
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	17
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	18	#define PRIORITY 1
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	19
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	20	/****************************************************************************/
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	21
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	22	static unsigned int sig_alarms = 0;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	23	static unsigned int user_alarms = 0;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	24
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	25	/****************************************************************************/
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	26
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	27	void signal_handler(int signum) {
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	28	switch (signum) {
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	29	case SIGALRM:
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	30	sig_alarms++;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	31	break;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	32	}
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	33	}
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	34
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	35	/****************************************************************************/
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	36
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	37	int main(int argc, char **argv)
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	38	{
1244 0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	39	ec_master_t *master;
0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	40	ec_domain_t *domain;
1246 4042bda8c980 Creating slave configurations. Florian Pose <fp@igh-essen.com> parents: 1244 diff changeset	41	ec_slave_config_t *sc;
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	42	struct sigaction sa;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	43	struct itimerval tv;
1244 0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	44
0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	45	master = ecrt_request_master(0);
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	46	if (!master)
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	47	return -1;
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	48
1244 0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	49	domain = ecrt_master_create_domain(master);
0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	50	if (!domain)
0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	51	return -1;
0b70040d3daa No kernel handles in userspace; Domain creation. Florian Pose <fp@igh-essen.com> parents: 1242 diff changeset	52
1246 4042bda8c980 Creating slave configurations. Florian Pose <fp@igh-essen.com> parents: 1244 diff changeset	53	sc = ecrt_master_slave_config(master, 0, 0, 0x00000002, 0x044C2C52);
4042bda8c980 Creating slave configurations. Florian Pose <fp@igh-essen.com> parents: 1244 diff changeset	54	if (!sc)
4042bda8c980 Creating slave configurations. Florian Pose <fp@igh-essen.com> parents: 1244 diff changeset	55	return -1;
4042bda8c980 Creating slave configurations. Florian Pose <fp@igh-essen.com> parents: 1244 diff changeset	56
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	57	printf("Activating master...\n");
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	58	if (ecrt_master_activate(master))
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	59	return -1;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	60
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	61	#if PRIORITY
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	62	pid_t pid = getpid();
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	63	if (setpriority(PRIO_PROCESS, pid, -19))
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	64	fprintf(stderr, "Warning: Failed to set priority: %s\n",
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	65	strerror(errno));
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	66	#endif
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	67
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	68	sa.sa_handler = signal_handler;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	69	sigemptyset(&sa.sa_mask);
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	70	sa.sa_flags = 0;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	71	if (sigaction(SIGALRM, &sa, 0)) {
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	72	fprintf(stderr, "Failed to install signal handler!\n");
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	73	return -1;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	74	}
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	75
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	76	printf("Starting timer...\n");
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	77	tv.it_interval.tv_sec = 0;
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	78	tv.it_interval.tv_usec = 100000;
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	79	tv.it_value.tv_sec = 0;
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	80	tv.it_value.tv_usec = 1000;
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	81	if (setitimer(ITIMER_REAL, &tv, NULL)) {
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	82	fprintf(stderr, "Failed to start timer: %s\n", strerror(errno));
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	83	return 1;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	84	}
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	85
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	86	printf("Started.\n");
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	87	while (1) {
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	88	sleep(1);
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	89
1249 d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	90	#if 1
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	91	struct timeval t;
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	92	gettimeofday(&t, NULL);
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	93	printf("%u.%06u\n", t.tv_sec, t.tv_usec);
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	94	#endif
d64ed42e0d11 Userspace example with priority. Florian Pose <fp@igh-essen.com> parents: 1247 diff changeset	95
1247 5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	96	while (sig_alarms != user_alarms) {
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	97	ecrt_master_receive(master);
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	98	ecrt_master_send(master);
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	99
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	100	user_alarms++;
5f1f1a3e6636 Activate, Send and received; cyclic timer with setitimer(). Florian Pose <fp@igh-essen.com> parents: 1246 diff changeset	101	}
1242 632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	102	}
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	103
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	104	return 0;
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	105	}
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	106
632a6b91f8e4 First version of userspace library with requesting/releasing. Florian Pose <fp@igh-essen.com> parents: diff changeset	107	/****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Thu, 02 Oct 2008 15:38:35 +0000
changeset 1249	d64ed42e0d11
parent 1247	5f1f1a3e6636
child 1255	38b7e05b20c1
permissions	-rw-r--r--