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Corrected get_ip_id() so that it uses atomic_add() instead of a semaphore.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3733 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Waldemar Kornewald 2003-06-29 15:47:40 +00:00
parent cb595db745
commit e19f10fab7
1 changed files with 2 additions and 8 deletions
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10
src/add-ons/kernel/network/protocols/ipv4/ipv4.c
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@ -38,8 +38,7 @@ static struct core_module_info *core = NULL;
static struct protosw *proto[IPPROTO_MAX]; static struct protosw *proto[IPPROTO_MAX];
static int ipforwarding = 0; static int ipforwarding = 0;
static int ipsendredirects = 1; static int ipsendredirects = 1;
static uint16 ip_id = 0; static uint32 ip_id = 0;
static sem_id id_lock = -1;
static struct in_ifaddr *ip_ifaddr = NULL; static struct in_ifaddr *ip_ifaddr = NULL;
static struct icmp_module_info *icmp = NULL; static struct icmp_module_info *icmp = NULL;
static struct ipq ipq; static struct ipq ipq;
@ -1031,14 +1030,9 @@ bad:
goto done; goto done;
} }
/* ??? - can we just use atomic_add() here? */
uint16 get_ip_id(void) uint16 get_ip_id(void)
{ {
uint16 rv = 0; return (uint16) atomic_add(&ip_id, 1);
acquire_sem_etc(id_lock, 1, B_CAN_INTERRUPT, 0);
rv = ip_id++;
release_sem_etc(id_lock, 1, B_CAN_INTERRUPT);
return rv;
} }
static int ipv4_ctloutput(int op, struct socket *so, int level, static int ipv4_ctloutput(int op, struct socket *so, int level,