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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
};