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Replaced SELECT_CALLBACK with an API that supports multiple select callbacks

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This commit is contained in:
Niclas Finne 2012-01-18 17:44:31 +01:00
parent c67954c773
commit aceb36c66b
5 changed files with 138 additions and 94 deletions
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4
examples/ipv6/native-border-router/project-conf.h
View file

@ -50,7 +50,7 @@
#undef NETSTACK_CONF_RDC
#define NETSTACK_CONF_RDC border_router_rdc_driver
#define SELECT_CALLBACK (&tun_select_callback)
extern struct select_callback tun_select_callback;
/* used by wpcap (see /cpu/native/net/wpcap-drv.c) */
#define SELECT_CALLBACK 1
#endif /* __PROJECT_ROUTER_CONF_H__ */

52
examples/ipv6/native-border-router/slip-dev.c
View file

@ -368,6 +368,31 @@ stty_telos(int fd)
if(tcflush(fd, TCIOFLUSH) == -1) err(1, "tcflush");
}
/*---------------------------------------------------------------------------*/
static int
set_fd(fd_set *rset, fd_set *wset)
{
if(!slip_empty()) { /* Anything to flush? */
FD_SET(slipfd, wset);
}
FD_SET(slipfd, rset); /* Read from slip ASAP! */
return 1;
}
/*---------------------------------------------------------------------------*/
static void
handle_fd(fd_set *rset, fd_set *wset)
{
if(FD_ISSET(slipfd, rset)) {
serial_input(inslip);
}
if(FD_ISSET(slipfd, wset)) {
slip_flushbuf(slipfd);
}
}
/*---------------------------------------------------------------------------*/
static const struct select_callback slip_callback = { set_fd, handle_fd };
/*---------------------------------------------------------------------------*/
void
slip_init(void)
{
@ -395,6 +420,8 @@ slip_init(void)
}
}
select_set_callback(slipfd, &slip_callback);
fprintf(stderr, "********SLIP started on ``/dev/%s''\n", slip_config_siodev);
stty_telos(slipfd);
@ -402,28 +429,3 @@ slip_init(void)
inslip = fdopen(slipfd, "r");
if(inslip == NULL) err(1, "main: fdopen");
}
/*---------------------------------------------------------------------------*/
int
slip_set_fd(int maxfd, fd_set *rset, fd_set *wset)
{
if(!slip_empty()) { /* Anything to flush? */
FD_SET(slipfd, wset);
}
FD_SET(slipfd, rset); /* Read from slip ASAP! */
if(slipfd > maxfd) maxfd = slipfd;
return maxfd;
}
/*---------------------------------------------------------------------------*/
void
slip_handle_fd(fd_set *rset, fd_set *wset)
{
if(FD_ISSET(slipfd, rset)) {
serial_input(inslip);
}
if(FD_ISSET(slipfd, wset)) {
slip_flushbuf(slipfd);
}
}

48
examples/ipv6/native-border-router/tun-bridge.c
View file

@ -51,7 +51,7 @@
#include <sys/socket.h>
#define DEBUG DEBUG_PRINT
#define DEBUG DEBUG_NONE
#include "net/uip-debug.h"
#ifdef linux
@ -65,14 +65,20 @@
#include "cmd.h"
#include "border-router.h"
extern int slip_config_verbose;
extern const char *slip_config_ipaddr;
extern int slip_config_flowcontrol;
extern char slip_config_tundev[32];
extern uint16_t slip_config_basedelay;
#ifndef __CYGWIN__
static int tunfd;
static int initialized = 0;
static int set_fd(fd_set *rset, fd_set *wset);
static void handle_fd(fd_set *rset, fd_set *wset);
static const struct select_callback tun_select_callback = {
set_fd,
handle_fd
};
#endif /* __CYGWIN__ */
int ssystem(const char *fmt, ...)
__attribute__((__format__ (__printf__, 1, 2)));
@ -181,8 +187,6 @@ tun_init()
setvbuf(stdout, NULL, _IOLBF, 0); /* Line buffered output. */
slip_init();
initialized = 1;
}
#else
@ -200,6 +204,9 @@ tun_init()
tunfd = tun_alloc(slip_config_tundev);
if(tunfd == -1) err(1, "main: open");
select_set_callback(tunfd, &tun_select_callback);
fprintf(stderr, "opened %s device ``/dev/%s''\n",
"tun", slip_config_tundev);
@ -208,8 +215,6 @@ tun_init()
signal(SIGTERM, sigcleanup);
signal(SIGINT, sigcleanup);
ifconf(slip_config_tundev, slip_config_ipaddr);
initialized = 1;
}
/*---------------------------------------------------------------------------*/
@ -251,22 +256,14 @@ const struct uip_fallback_interface rpl_interface = {
init, output
};
#endif /* __CYGWIN_ */
/*---------------------------------------------------------------------------*/
/* tun and slip select callback */
/*---------------------------------------------------------------------------*/
static int
set_fd(int maxfd, fd_set *rset, fd_set *wset)
set_fd(fd_set *rset, fd_set *wset)
{
if(!initialized) return maxfd;
maxfd = slip_set_fd(maxfd, rset, wset);
FD_SET(tunfd, rset);
if(tunfd > maxfd) maxfd = tunfd;
return maxfd;
return 1;
}
/*---------------------------------------------------------------------------*/
@ -274,14 +271,6 @@ set_fd(int maxfd, fd_set *rset, fd_set *wset)
static void
handle_fd(fd_set *rset, fd_set *wset)
{
if(!initialized) return;
slip_handle_fd(rset, wset);
#ifdef __CYGWIN__
/* Packets from host interface are handled by wpcap process */
#else
/* Optional delay between outgoing packets */
/* Base delay times number of 6lowpan fragments to be sent */
/* delaymsec = 10; */
@ -312,12 +301,7 @@ handle_fd(fd_set *rset, fd_set *wset)
}
}
}
#endif /* __CYGWIN__ */
}
#endif /* __CYGWIN_ */
/*---------------------------------------------------------------------------*/
struct select_callback tun_select_callback = {
set_fd,
handle_fd
};

5
platform/native/contiki-conf.h
View file

@ -38,10 +38,12 @@
#ifndef WIN32_LEAN_AND_MEAN
#include <sys/select.h>
#endif
struct select_callback {
int (* set_fd)(int maxfd, fd_set *fdr, fd_set *fdw);
int (* set_fd)(fd_set *fdr, fd_set *fdw);
void (* handle_fd)(fd_set *fdr, fd_set *fdw);
};
int select_set_callback(int fd, const struct select_callback *callback);
#define CC_CONF_REGISTER_ARGS 1
#define CC_CONF_FUNCTION_POINTER_ARGS 1
@ -177,5 +179,4 @@ int strcasecmp(const char*, const char*);
#include PROJECT_CONF_H
#endif /* PROJECT_CONF_H */
#endif /* __CONTIKI_CONF_H__ */

113
platform/native/contiki-main.c
View file

@ -29,8 +29,6 @@
*
* This file is part of the Contiki OS
*
* $Id: contiki-main.c,v 1.14 2011/01/21 14:19:57 nvt-se Exp $
*
*/
#include <stdio.h>
@ -59,14 +57,72 @@
#include "net/rime.h"
#ifdef SELECT_CONF_MAX
#define SELECT_MAX SELECT_CONF_MAX
#else
#define SELECT_MAX 8
#endif
PROCINIT(&etimer_process, &tcpip_process);
static const struct select_callback *select_callback[SELECT_MAX];
static int select_max = 0;
SENSORS(&pir_sensor, &vib_sensor, &button_sensor);
static uint8_t serial_id[] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
static uint16_t node_id = 0x0102;
/*---------------------------------------------------------------------------*/
int
select_set_callback(int fd, const struct select_callback *callback)
{
int i;
if(fd >= 0 && fd < SELECT_MAX) {
/* Check that the callback functions are set */
if(callback != NULL &&
(callback->set_fd == NULL || callback->handle_fd == NULL)) {
callback = NULL;
}
select_callback[fd] = callback;
/* Update fd max */
if(callback != NULL) {
if(fd > select_max) {
select_max = fd;
}
} else {
select_max = 0;
for(i = SELECT_MAX - 1; i > 0; i--) {
if(select_callback[i] != NULL) {
select_max = i;
break;
}
}
}
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
stdin_set_fd(fd_set *rset, fd_set *wset)
{
FD_SET(STDIN_FILENO, rset);
return 1;
}
static void
stdin_handle_fd(fd_set *rset, fd_set *wset)
{
char c;
if(FD_ISSET(STDIN_FILENO, rset)) {
if(read(STDIN_FILENO, &c, 1) > 0) {
serial_line_input_byte(c);
}
}
}
const static struct select_callback stdin_fd = {
stdin_set_fd, stdin_handle_fd
};
/*---------------------------------------------------------------------------*/
static void
set_rime_addr(void)
{
@ -104,12 +160,12 @@ main(int argc, char **argv)
{
#if UIP_CONF_IPV6
#if UIP_CONF_IPV6_RPL
printf("Starting Contiki IPV6, RPL\n");
printf(CONTIKI_VERSION_STRING " started with IPV6, RPL\n");
#else
printf("Starting Contiki IPV6\n");
printf(CONTIKI_VERSION_STRING " started with IPV6\n");
#endif
#else
printf("Starting Contiki IPV4\n");
printf(CONTIKI_VERSION_STRING " started\n");
#endif
/* crappy way of remembering and accessing argc/v */
@ -117,10 +173,16 @@ main(int argc, char **argv)
contiki_argv = argv;
process_init();
process_start(&etimer_process, NULL);
ctimer_init();
set_rime_addr();
queuebuf_init();
netstack_init();
printf("MAC %s RDC %s NETWORK %s\n", NETSTACK_MAC.name, NETSTACK_RDC.name, NETSTACK_NETWORK.name);
#if WITH_UIP6
memcpy(&uip_lladdr.addr, serial_id, sizeof(uip_lladdr.addr));
@ -142,15 +204,10 @@ main(int argc, char **argv)
printf("%02x%02x\n", lladdr->ipaddr.u8[14], lladdr->ipaddr.u8[15]);
}
#else
process_start(&tcpip_process, NULL);
#endif
queuebuf_init();
netstack_init();
procinit_init();
serial_line_init();
autostart_start(autostart_processes);
@ -158,39 +215,39 @@ main(int argc, char **argv)
/* Make standard output unbuffered. */
setvbuf(stdout, (char *)NULL, _IONBF, 0);
select_set_callback(STDIN_FILENO, &stdin_fd);
while(1) {
fd_set fdr;
fd_set fdw;
int maxfd;
int i;
int retval;
struct timeval tv;
process_run();
retval = process_run();
tv.tv_sec = 0;
tv.tv_usec = 1000;
tv.tv_usec = retval ? 1 : 1000;
FD_ZERO(&fdr);
FD_ZERO(&fdw);
FD_SET(STDIN_FILENO, &fdr);
maxfd = STDIN_FILENO;
maxfd = 0;
for(i = 0; i <= select_max; i++) {
if(select_callback[i] != NULL && select_callback[i]->set_fd(&fdr, &fdw)) {
maxfd = i;
}
}
#ifdef SELECT_CALLBACK
maxfd = SELECT_CALLBACK->set_fd(maxfd, &fdr, &fdw);
#endif
if((retval = select(maxfd + 1, &fdr, &fdw, NULL, &tv)) < 0) {
retval = select(maxfd + 1, &fdr, &fdw, NULL, &tv);
if(retval < 0) {
perror("select");
} else if(retval > 0) {
/* timeout => retval == 0 */
if(FD_ISSET(STDIN_FILENO, &fdr)) {
char c;
if(read(STDIN_FILENO, &c, 1) > 0) {
serial_line_input_byte(c);
for(i = 0; i <= maxfd; i++) {
if(select_callback[i] != NULL) {
select_callback[i]->handle_fd(&fdr, &fdw);
}
}
#ifdef SELECT_CALLBACK
SELECT_CALLBACK->handle_fd(&fdr, &fdw);
#endif
}
etimer_request_poll();