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fixed some possible segfaults. also fixed an very important bug which occurs on high load (when calls are very fast generated)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@52843 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Christian Richter
2007-01-30 14:38:08 +00:00
parent 3d12e45f06
commit ec4c828386
2 changed files with 27 additions and 43 deletions
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37
channels/misdn/isdn_lib.c
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@@ -2857,23 +2857,12 @@ msg_t *fetch_msg(int midev)
{
msg_t *msg=alloc_msg(MAX_MSG_SIZE);
int r;
/* fd_set rdfs; */
if (!msg) {
cb_log(0, 0, "fetch_msg: alloc msg failed !!");
return NULL;
}
#if 0
FD_ZERO(&rdfs);
FD_SET(midev,&rdfs);
mISDN_select(FD_SETSIZE, &rdfs, NULL, NULL, NULL);
//select(FD_SETSIZE, &rdfs, NULL, NULL, NULL);
if (FD_ISSET(midev, &rdfs)) {
#endif
AGAIN:
r=mISDN_read(midev,msg->data,MAX_MSG_SIZE, TIMEOUT_10SEC);
msg->len=r;
@@ -2895,15 +2884,11 @@ msg_t *fetch_msg(int midev)
cb_log(0,0,"mISDN_read returned :%d error:%s (%d)\n",r,strerror(errno),errno);
}
return msg;
#if 0
} else {
printf ("Select timeout\n");
}
if (!(frm->prim == (DL_DATA|INDICATION) )|| (frm->prim == (PH_DATA|INDICATION)))
cb_log(0,0,"prim: %x dinfo:%x addr:%x msglen:%d frm->len:%d\n",frm->prim, frm->dinfo, frm->addr, msg->len,frm->len );
#endif
return NULL;
return msg;
}
@@ -3942,8 +3927,6 @@ char *manager_isdn_get_info(enum event_e event)
void manager_bchannel_activate(struct misdn_bchannel *bc)
{
char buf[128];
iframe_t *ifrm;
int ret;
struct misdn_stack *stack=get_stack_by_bc(bc);
@@ -3959,19 +3942,7 @@ void manager_bchannel_activate(struct misdn_bchannel *bc)
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_DOWN, DL_ESTABLISH | REQUEST, 0,0, NULL, TIMEOUT_1SEC);
ret=mISDN_read(stack->midev,buf,128,TIMEOUT_10SEC);
ifrm=(iframe_t*)buf;
if (ret>0) {
if (ifrm->prim== (DL_ESTABLISH|CONFIRM)) {
cb_log(2,stack->port,"bchan: DL_ESTABLISH|CNF\n");
}
}
return ;
}
@@ -4005,8 +3976,6 @@ void manager_bchannel_deactivate(struct misdn_bchannel * bc)
char buf[128];
mISDN_write_frame(stack->midev, buf, bc->addr | FLG_MSG_DOWN, DL_RELEASE|REQUEST,0,0,NULL, TIMEOUT_1SEC);
mISDN_read(stack->midev, buf, 128, TIMEOUT_1SEC);
clear_ibuffer(bc->astbuf);
bc_state_change(bc,BCHAN_RELEASE);