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authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2018-02-27 13:03:44 +0100
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2018-02-27 13:03:44 +0100
commitd82ea2ba8f9486d338b3aefe161afd4f77ce7a86 (patch)
treeb07fd8b2e617dd973f2ea39c448c1fd079bd5677 /networking/tcpudp_perhost.c
parent0e0209ac5312fb0a4cf740f59e3564c6549f4d77 (diff)
downloadbusybox-d82ea2ba8f9486d338b3aefe161afd4f77ce7a86.tar.gz
busybox-d82ea2ba8f9486d338b3aefe161afd4f77ce7a86.tar.bz2
tcpudp: shrink per-host rate-limiting code
function old new delta tcpudpsvd_main 1775 1780 +5 ipsvd_perhost_add 108 107 -1 cclen 4 - -4 cc 4 - -4 ipsvd_perhost_init 30 25 -5 ipsvd_perhost_remove 80 44 -36 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 1/3 up/down: 5/-50) Total: -45 bytes text data bss dec hex filename 933358 473 6852 940683 e5a8b busybox_old 933326 473 6844 940643 e5a63 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/tcpudp_perhost.c')
-rw-r--r--networking/tcpudp_perhost.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/networking/tcpudp_perhost.c b/networking/tcpudp_perhost.c
index 105410883..2643f8d16 100644
--- a/networking/tcpudp_perhost.c
+++ b/networking/tcpudp_perhost.c
@@ -10,25 +10,21 @@
#include "libbb.h"
#include "tcpudp_perhost.h"
-static struct hcc *cc;
-static unsigned cclen;
-
-/* to be optimized */
-
-void ipsvd_perhost_init(unsigned c)
+struct hcc* FAST_FUNC ipsvd_perhost_init(unsigned c)
{
// free(cc);
- cc = xzalloc(c * sizeof(*cc));
- cclen = c;
+ struct hcc *cc = xzalloc((c + 1) * sizeof(*cc));
+ cc[c].pid = -1; /* "end" marker */
+ return cc;
}
-unsigned ipsvd_perhost_add(char *ip, unsigned maxconn, struct hcc **hccpp)
+unsigned FAST_FUNC ipsvd_perhost_add(struct hcc *cc, char *ip, unsigned maxconn, struct hcc **hccpp)
{
unsigned i;
unsigned conn = 1;
int freepos = -1;
- for (i = 0; i < cclen; ++i) {
+ for (i = 0; cc[i].pid >= 0; ++i) {
if (!cc[i].ip) {
freepos = i;
continue;
@@ -46,10 +42,10 @@ unsigned ipsvd_perhost_add(char *ip, unsigned maxconn, struct hcc **hccpp)
return conn;
}
-void ipsvd_perhost_remove(int pid)
+void FAST_FUNC ipsvd_perhost_remove(struct hcc *cc, int pid)
{
unsigned i;
- for (i = 0; i < cclen; ++i) {
+ for (i = 0; cc[i].pid >= 0; ++i) {
if (cc[i].pid == pid) {
free(cc[i].ip);
cc[i].ip = NULL;
@@ -59,7 +55,7 @@ void ipsvd_perhost_remove(int pid)
}
}
-//void ipsvd_perhost_free(void)
+//void ipsvd_perhost_free(struct hcc *cc)
//{
// free(cc);
//}