welterde/l2tpns
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

make number of throttle buckets configurable

Browse source
This commit is contained in:
bodea 2004-10-29 04:01:11 +00:00
parent cc4a4a430e
commit 2f1b71cd74
4 changed files with 38 additions and 54 deletions
Download patch file Download diff file Expand all files Collapse all files

42
tbf.c
View file

@ -1,13 +1,8 @@
// L2TPNS: token bucket filters
char const *cvs_id_tbf = "$Id: tbf.c,v 1.7 2004/10/28 03:26:41 bodea Exp $";
#define _GNU_SOURCE
char const *cvs_id_tbf = "$Id: tbf.c,v 1.8 2004/10/29 04:01:11 bodea Exp $";
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include "l2tpns.h"
#include "util.h"
#include "tbf.h"
@ -19,12 +14,12 @@ static int timer_chain = -1; // Head of timer chain.
static void tbf_run_queue(int tbf_id);
void init_tbf(void)
void init_tbf(int num_tbfs)
{
if (!(filter_list = shared_malloc(sizeof(*filter_list) * MAXTBFS)))
if (!(filter_list = shared_malloc(sizeof(*filter_list) * num_tbfs)))
return;
filter_list_size = MAXTBFS;
filter_list_size = num_tbfs;
filter_list[0].sid = -1; // Reserved.
}
//
@ -101,13 +96,11 @@ int new_tbf(int sid, int max_credit, int rate, void (*f)(sessionidt, u8 *, int))
int i;
static int p = 0;
log(3,0,0,0, "Allocating new TBF (sess %d, rate %d, helper %p)\n", sid, rate, f);
log(4,0,0,0, "Allocating new TBF (sess %d, rate %d, helper %p)\n", sid, rate, f);
if (!filter_list)
return 0; // Couldn't alloc memory!
// again:
for (i = 0 ; i < filter_list_size ; ++i, p = (p+1)%filter_list_size ) {
if (filter_list[p].sid)
continue;
@ -123,33 +116,8 @@ int new_tbf(int sid, int max_credit, int rate, void (*f)(sessionidt, u8 *, int))
return p;
}
#if 0
// All allocated filters are used! Increase the size of the allocated
// filters.
{
int new_size = filter_list_size * 2;
tbft *new = mremap(filter_list, filter_list_size * sizeof(*new), new_size * sizeof(*new), MREMAP_MAYMOVE);
if (new == MAP_FAILED)
{
log(0,0,0,0, "Ran out of token bucket filters and mremap failed! Sess %d will be un-throttled\n", sid);
return 0;
}
i = filter_list_size;
filter_list_size = new_size;
filter_list = new;
}
for (; i < filter_list_size; ++i)
filter_list[i].sid = 0;
goto again;
#else
log(0,0,0,0, "Ran out of token bucket filters! Sess %d will be un-throttled\n", sid);
return 0;
#endif
}
//