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Use futex instead of pthread_mutex on Linux

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This commit is contained in:
z3APA3A 2018-12-28 18:49:45 +03:00
parent 6fe36b01d1
commit 930d9823ea
3 changed files with 52 additions and 1 deletions
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33
src/common.c
View File

@ -34,6 +34,35 @@ int havelog = 0;
unsigned char **stringtable = NULL;
#ifdef WITH_LINUX_FUTEX
int sys_futex(void *addr1, int op, int val1, struct timespec *timeout, void *addr2, int val3)
{
return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3);
}
int mutex_lock(int *val)
{
int c;
if ((c = __sync_val_compare_and_swap(val, 0, 1)) != 0)
do {
if(c == 2 || __sync_val_compare_and_swap(val, 1, 2) != 0)
sys_futex(val, FUTEX_WAIT_PRIVATE, 2, NULL, NULL, 0);
} while ((c = __sync_val_compare_and_swap(val, 0, 2)) != 0);
return 0;
}
int mutex_unlock(int *val)
{
if(__sync_fetch_and_sub (val, 1) != 1){
*val = 0;
sys_futex(val, FUTEX_WAKE_PRIVATE, 1, NULL, NULL, 0);
}
return 0;
}
#endif
int myinet_ntop(int af, void *src, char *dst, socklen_t size){
#ifndef NOIPV6
if(af != AF_INET6){
@ -546,6 +575,10 @@ int dobuf2(struct clientparam * param, unsigned char * buf, const unsigned char
sprintf((char *)buf+i, "%hu", ntohs(*SAPORT(&param->req)));
i += (int)strlen((char *)buf+i);
break;
case 'L':
sprintf((char *)buf+i, "%"PRINTF_INT64_MODIFIER"u", param->cycles);
i += (int)strlen((char *)buf+i);
break;
case 'I':
sprintf((char *)buf+i, "%"PRINTF_INT64_MODIFIER"u", param->statssrv64);
i += (int)strlen((char *)buf+i);

2
src/sockmap.c
View File

@ -107,6 +107,7 @@ int splicemap(struct clientparam * param, int timeo){
while((!stop || (inclipipe && param->remsock != INVALID_SOCKET) || (insrvpipe && param->clisock != INVALID_SOCKET)) && !conf.timetoexit){
param->cycles++;
#ifdef NOIPV6
sasize = sizeof(struct sockaddr_in);
#else
@ -367,6 +368,7 @@ int sockmap(struct clientparam * param, int timeo){
while (!stop&&!conf.timetoexit){
param->cycles++;
#ifdef NOIPV6
sasize = sizeof(struct sockaddr_in);
#else

18
src/structures.h
View File

@ -34,6 +34,21 @@ extern "C" {
#define SASIZETYPE socklen_t
#define SOCKET int
#define INVALID_SOCKET (-1)
#ifdef WITH_LINUX_FUTEX
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <linux/kernel.h>
#include <linux/futex.h>
#define pthread_mutex_t int
#define pthread_mutex_init(x, y) (*(x)=0)
#define pthread_mutex_destroy(x) (*(x)=0)
#define pthread_mutex_lock(x) mutex_lock(x)
#define pthread_mutex_unlock(x) mutex_unlock(x)
int mutex_lock(int *val);
int mutex_unlock(int *val);
#else
#endif
#else
#include <winsock2.h>
#include <Ws2tcpip.h>
@ -477,7 +492,8 @@ struct clientparam {
REDIRTYPE redirtype;
uint64_t waitclient64,
waitserver64;
waitserver64,
cycles;
int redirected,
operation,