/*
** Name: CS_cp_mbx_create - mailbox creation and initialization
**
** Description:
** This subroutine is called from CSinitiate().
**
** It does the following:
** a) establishes a mailbox, with the name II_CPRES_xx_pid, where
** xx is the (optional) installation code, and pid is the
** process ID in hex.
** b) queues a read on the mailbox, with completion routine set to
** CS_cp_mbx_complete
** c) deletes the mailbox, so it'll go away when the process dies.
**
** Inputs:
** num_sessions - Number of sessions for the process.
**
** Outputs:
** sys_err - reason for error
**
** Returns:
** OK, !OK
**
** Side Effects:
** Sets cpres_mbx_chan to the mailbox's channel
** Defines the system-wide logical name II_CPRES_xx_pid
**
** History:
** Summer, 1992 (bryanp)
** Working on the new portable logging and locking system.
** 08-Nov-2007 (jonj)
** Use of "num_sessions" is totally bogus. CS_cp_mbx_create() is called
** before the startup parms are determined from config.dat (where we'd
** find "connect_limit"), so SCD hard-codes num_sessions = 32, resulting
** in CS_CP_MIN_MSGS == 5 always being used, which is way too small.
** Instead, default to the (configurable) VMS sysgen parameter
** DEFMBXBUFQUO.
** Also, create mailbox as read-only. Writers will assign write-only
** channels.
*/
STATUS
CS_cp_mbx_create(i4 num_sessions, CL_ERR_DESC *sys_err)
{
struct dsc$descriptor_s name_desc;
i4 vms_status;
char mbx_name[100];
char *inst_id;
PID pid;
CL_CLEAR_ERR(sys_err);
/*
** Build the mailbox logical name:
*/
PCpid(&pid);
NMgtAt("II_INSTALLATION", &inst_id);
if (inst_id && *inst_id)
STprintf(mbx_name, "II_CPRES_%s_%x", inst_id, (i4)pid);
else
STprintf(mbx_name, "II_CPRES_%x", (i4)pid);
name_desc.dsc$a_pointer = mbx_name;
name_desc.dsc$w_length = STlength(mbx_name);
name_desc.dsc$b_dtype = DSC$K_DTYPE_T;
name_desc.dsc$b_class = DSC$K_CLASS_S;
vms_status = sys$crembx(
1, /* Mailbox is "permanent" */
&cpres_mbx_chan, /* where to put channel */
(i4)sizeof(CS_CP_WAKEUP_MSG),
/* maximum message size */
0, /* buffer quota (DEFMBXBUFQUO) */
0, /* prot mask = all priv */
PSL$C_USER, /* acmode */
&name_desc, /* logical name descriptor */
CMB$M_READONLY, /* flags */
0); /* nullarg */
if ( vms_status != SS$_NORMAL )
{
sys_err->error = vms_status;
if (vms_status == SS$_NOPRIV)
return (E_CS00F8_CSMBXCRE_NOPRIV);
else
return (E_CS00F7_CSMBXCRE_ERROR);
}
/* Hang a read */
cpres_q_read_io();
/* Mark for deletion, so it disappears when we exit. */
sys$delmbx(cpres_mbx_chan);
cpres_channels_sem = 0;
cpres_num_channels_assigned = 0;
return (OK);
}
NamedEventImpl::NamedEventImpl(const std::string& name):
_name(name)
{
struct dsc$descriptor_s mbxDesc;
mbxDesc.dsc$w_length = _name.length();
mbxDesc.dsc$b_dtype = DSC$K_DTYPE_T;
mbxDesc.dsc$b_class = DSC$K_CLASS_S;
mbxDesc.dsc$a_pointer = _name.c_str();
if (sys$crembx(0, &_mbxChan, 0, 0, 0, 0, &mbxDesc, 0, 0) != 1)
throw SystemException("cannot create named event", _name);
}
int job_control(void *unused)
{
int sts;
struct _pcb *tsk = ctl$gl_pcb;
strcpy(tsk->pcb$t_lname, "JOB_CONTROL");
sts=exe$crembx(1,&mailbox_channel,512,512,0,0,0,0);
sys$ar_jobctlmb=ctl$gl_ccbbase[mailbox_channel].ccb$l_ucb;
do_mbx_read();
sys$hiber();
printk("job control should not get past sys$hiber\n");
}
/*
**++
** ROUTINE: sp_open
**
** FUNCTIONAL DESCRIPTION:
**
** Spawns a subprocess, possibly passing it an initial command.
**
** RETURNS: cond_value, longword (unsigned), write only, by value
**
** PROTOTYPE:
**
** sp_open(SPHANDLE *ctxpp, struct dsc$descriptor *inicmd,
** unsigned int (*rcvast)(void *), void *rcvastprm);
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES:
** SS$_NORMAL: Normal successful completion.
**
** SIDE EFFECTS: None.
**
**--
*/
unsigned int sp_open (SPHANDLE *ctxpp, void *inicmd, unsigned int (*rcvast)(void *), void *rcvastprm) {
SPHANDLE ctx;
unsigned int dvi_devnam = DVI$_DEVNAM, dvi_devbufsiz = DVI$_DEVBUFSIZ;
unsigned int spawn_flags = CLI$M_NOWAIT|CLI$M_NOKEYPAD;
unsigned int status;
struct dsc$descriptor inbox, outbox;
status = lib$get_vm(&spb_size, &ctx);
if (!OK(status)) return status;
/*
** Assign the SPHANDLE address for the caller immediately to avoid timing issues with
** WRTATTN AST that passes the ctx as rcvastprm (which sp_once does).
*/
*ctxpp = ctx;
ctx->sendque.head = ctx->sendque.tail = &ctx->sendque;
ctx->ok_to_send = 0;
/*
** Create the mailboxes we'll be using for I/O with the subprocess
*/
status = sys$crembx(0, &ctx->inchn, 1024, 1024, 0xff00, 0, 0, 0);
if (!OK(status)) {
lib$free_vm(&spb_size, &ctx);
return status;
}
status = sys$crembx(0, &ctx->outchn, 1024, 1024, 0xff00, 0, 0, 0);
if (!OK(status)) {
sys$dassgn(ctx->inchn);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Now that they're created, let's find out what they're called so we
** can tell LIB$SPAWN
*/
INIT_DYNDESC(inbox);
INIT_DYNDESC(outbox);
lib$getdvi(&dvi_devnam, &ctx->inchn, 0, 0, &inbox);
lib$getdvi(&dvi_devnam, &ctx->outchn, 0, 0, &outbox);
lib$getdvi(&dvi_devbufsiz, &ctx->outchn, 0, &ctx->bufsiz);
/*
** Create the output buffer for the subprocess.
*/
status = lib$get_vm(&ctx->bufsiz, &ctx->bufptr);
if (!OK(status)) {
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Set the "receive AST" routine to be invoked by SP_WRTATTN_AST
*/
ctx->rcvast = rcvast;
ctx->astprm = rcvastprm;
sys$qiow(0, ctx->outchn, IO$_SETMODE|IO$M_WRTATTN, 0, 0, 0,
sp_wrtattn_ast, ctx, 0, 0, 0, 0);
sys$qiow(0, ctx->inchn, IO$_SETMODE|IO$M_READATTN, 0, 0, 0,
sp_readattn_ast, ctx, 0, 0, 0, 0);
/*
** Get us a termination event flag
*/
status = lib$get_ef(&ctx->termefn);
if (OK(status)) lib$get_ef(&ctx->inefn);
if (OK(status)) lib$get_ef(&ctx->outefn);
if (!OK(status)) {
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&ctx->bufsiz, &ctx->bufptr);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Now create the subprocess
*/
status = lib$spawn(inicmd, &inbox, &outbox, &spawn_flags, 0, &ctx->pid,
0, &ctx->termefn);
if (!OK(status)) {
lib$free_ef(&ctx->termefn);
lib$free_ef(&ctx->outefn);
lib$free_ef(&ctx->inefn);
sys$dassgn(ctx->outchn);
sys$dassgn(ctx->inchn);
str$free1_dx(&inbox);
str$free1_dx(&outbox);
lib$free_vm(&ctx->bufsiz, &ctx->bufptr);
lib$free_vm(&spb_size, &ctx);
return status;
}
/*
** Set up the exit handler, if we haven't done so already
*/
status = sys$setast(0);
if (!exh_declared) {
sys$dclexh(&exhblk);
exh_declared = 1;
}
if (status == SS$_WASSET) sys$setast(1);
/*
** Save the SPB in our private queue
*/
queue_insert(ctx, spque.tail);
/*
** Clean up and return
*/
str$free1_dx(&inbox);
str$free1_dx(&outbox);
return SS$_NORMAL;
} /* sp_open */
void cce_dbdump(void)
{
uint4 channel, status, flags, pid, real_size, req_size, size, addrs[2], sec_addrs[2];
int i, j, k, l;
gds_file_id file;
m_iosb stat_blk;
sgmnt_data *sd;
unsigned char mbuff[512], *c, *cptr, *ctop;
$DESCRIPTOR(d_sec,mbuff);
static readonly $DESCRIPTOR(d_cmd,"install lis/glo");
static readonly $DESCRIPTOR(d_mnam,"CCE$DBDUMPMBX");
static readonly $DESCRIPTOR(d_pnam,"CCE$DBDUMPPRC");
char filename[]="SYS$LOGIN:CCE_DBDUMP.DMP", buff[RECORD_SIZE], id_lab[]=" FILE ID:";
struct FAB fab;
struct RAB rab;
error_def(ERR_CCEDBDUMP);
error_def(ERR_CCEDBNODUMP);
util_out_open(0);
status = sys$crembx(0, &channel, 512, 0, 0, PSL$C_USER, &d_mnam);
if (status != SS$_NORMAL)
sys$exit(status);
flags = CLI$M_NOWAIT | CLI$M_NOLOGNAM;
status = lib$spawn(&d_cmd, 0, &d_mnam, &flags, &d_pnam, &pid);
if (status != SS$_NORMAL)
{ if (status == SS$_DUPLNAM)
{ util_out_print("Spawned process CCE$DBDUMPPRC already exists, cannot continue rundown",TRUE);
}
sys$exit(status);
}
/* the following guess at the dump file size is modeled on the calculation for a section */
size = DIVIDE_ROUND_UP((SIZEOF(sgmnt_data) + (WC_MAX_BUFFS + getprime(WC_MAX_BUFFS) + 1) * SIZEOF(bt_rec)
+ (DEF_LOCK_SIZE / OS_PAGELET_SIZE)
+ (WC_MAX_BUFFS + getprime(WC_MAX_BUFFS)) * SIZEOF(cache_rec) + SIZEOF(cache_que_heads)),
OS_PAGELET_SIZE);
size += EXTRA_SPACE;
fab = cc$rms_fab;
fab.fab$b_fac = FAB$M_PUT;
fab.fab$l_fop = FAB$M_CBT | FAB$M_MXV | FAB$M_TEF;
fab.fab$l_fna = filename;
fab.fab$b_fns = SIZEOF(filename);
fab.fab$b_rfm = FAB$C_FIX;
fab.fab$w_mrs = RECORD_SIZE;
fab.fab$w_deq = size;
fab.fab$l_alq = size;
switch (status = sys$create(&fab))
{
case RMS$_NORMAL:
case RMS$_CREATED:
case RMS$_SUPERSEDE:
case RMS$_FILEPURGED:
break;
default:
util_out_print("Error: Cannot create dump file !AD.",TRUE,fab.fab$b_fns,fab.fab$l_fna);
sys$exit(status);
}
rab = cc$rms_rab;
rab.rab$l_fab = &fab;
status = sys$connect(&rab);
if (status != RMS$_NORMAL)
{ util_out_print("Error: Cannot connect to dump file !AD.",TRUE,fab.fab$b_fns,fab.fab$l_fna);
sys$exit(status);
}
rab.rab$w_rsz = SIZEOF(buff);
for (; ;)
{ status = sys$qiow (0, channel,IO$_READVBLK ,&stat_blk, 0, 0, mbuff, 512,0,0,0,0);
if (status != SS$_NORMAL)
{ sys$exit(status);
break;
}
if (stat_blk.status == SS$_ENDOFFILE)
break;
if (stat_blk.status != SS$_NORMAL)
{ sys$exit(stat_blk.status);
break;
}
if (!memcmp("GT$S",mbuff,4))
{ for ( c = mbuff; *c > 32 ; c++)
;
d_sec.dsc$w_length = c - mbuff;
flags = SEC$M_GBL | SEC$M_WRT | SEC$M_SYSGBL | SEC$M_PAGFIL | SEC$M_DZRO | SEC$M_PERM;
addrs[0] = addrs[1] = 0;
fid_from_sec(&d_sec,&file);
real_size = cce_sec_size(&file);
if (real_size == 0)
real_size = size;
real_size += 1;
assert(OS_PAGE_SIZE % OS_PAGELET_SIZE == 0);
/* Request enough pagelets to ensure enough contiguous pages to contain desired number of pagelets. */
req_size = ROUND_UP(real_size, OS_PAGE_SIZE);
lib$get_vm_page(&req_size, &addrs[0]);
/* addrs will hold addresses of start and end of contiguous block of pagelets for use by $deltva. */
assert((addrs[0] + (req_size * OS_PAGELET_SIZE) - 1) == addrs[1]);
/* $get_vm_page returns pagelets; we must align to integral page boundary. */
/* sec_addrs will contain the starting and ending addresses of the mapped section. */
sec_addrs[0] = ROUND_UP(addrs[0], OS_PAGE_SIZE); /* align to first integral page boundary */
sec_addrs[1] = addrs[0] + (real_size * OS_PAGELET_SIZE);
sec_addrs[1] = ROUND_UP(addrs[1], OS_PAGE_SIZE) - 1; /* A(last byte of last page) */
status = init_sec(sec_addrs, &d_sec, 0, real_size, flags);
if (status & 1)
{
sd = sec_addrs[0];
memset(buff, 0, RECORD_SIZE);
memcpy(buff, d_sec.dsc$a_pointer, d_sec.dsc$w_length);
cptr = &buff[0] + d_sec.dsc$w_length;
memcpy(cptr,id_lab,SIZEOF(id_lab));
cptr += SIZEOF(id_lab);
memcpy(cptr,&file,SIZEOF(file));
rab.rab$l_rbf = buff;
status = sys$put(&rab);
if (status != RMS$_NORMAL)
{ util_out_print("Error writing to dump file !AD.",TRUE,fab.fab$b_fns,fab.fab$l_fna);
util_out_print("Status code is !UL.",TRUE,status);
break;
}
for (c = sd, i = 0; (real_size + EXTRA_SPACE) >= i;
c += RECORD_SIZE, i += (RECORD_SIZE / DISK_BLOCK_SIZE))
{
rab.rab$l_rbf = c;
status = sys$put(&rab);
if (status != RMS$_NORMAL)
{ util_out_print("Error writing to dump file !AD.",TRUE,fab.fab$b_fns,fab.fab$l_fna);
util_out_print("Status code is !UL.",TRUE,status);
break;
}
}
lib$signal(ERR_CCEDBDUMP,2,d_sec.dsc$w_length,d_sec.dsc$a_pointer);
}else
{ lib$signal(ERR_CCEDBNODUMP,2,d_sec.dsc$w_length,d_sec.dsc$a_pointer,status,0);
}
gtm_deltva(&addrs[0],0,0);
lib$free_vm_page(&real_size,&addrs[0]);
}
}
sys$exit(SS$_NORMAL);
}
rlMailbox::rlMailbox(const char *mbxname)
{
#ifdef RLUNIX
FILE *fp;
key_t key;
status = OK;
buffer = NULL;
buffer_size = 0;
name = new char[strlen(mbxname)+1];
strcpy(name,mbxname);
// create file
fp = fopen(name,"r");
if(fp == NULL)
{
fp = fopen(name,"w");
if(fp == NULL)
{
int ret;
char buf[1024];
sprintf(buf,"could not write mailbox=%s\n",mbxname);
ret = ::write(1,buf,strlen(buf));
if(ret < 0) exit(-1);
sprintf(buf,"you have to run this program as root !!!\n");
ret = ::write(1,buf,strlen(buf));
if(ret < 0) exit(-1);
exit(-1);
}
fchmod(fileno(fp),0x0fff);
if(fp == NULL) { status=COULD_NOT_CREATE_MAILBOX; return; }
}
fclose(fp);
// getkey
// old stuff, without suggestions from Stefan Lievens
// key = ftok(name, 'R');
key = ftok(name, 'b');
if(key == ((key_t) (-1))) { status=COULD_NOT_GET_KEY; return; }
// get chanid
// old stuff, without suggestions from Stefan Lievens
// chanid = msgget(key,IPC_CREAT);
chanid = msgget(key, 0600 | IPC_CREAT);
if(chanid == -1) { status=COULD_NOT_GET_CHAN_ID; return; }
#endif
#ifdef __VMS
long ret;
short chan_id;
struct dsc$descriptor_s dmbxname;
chanid = -1;
status = OK;
name = new char[strlen(mbxname)+1];
strcpy(name,mbxname);
dmbxname.dsc$w_length = strlen(name);
dmbxname.dsc$a_pointer = name;
dmbxname.dsc$b_dtype = DSC$K_DTYPE_T;
dmbxname.dsc$b_class = DSC$K_CLASS_S;
ret = sys$crembx((char)1, // 0 temp 1 permanence flag
&chan_id, // i/o channel
MAX_MAILBOX, // max msg length
MAX_MAILBOX*4, // max buffer size
(long)0,
(long)0,
&dmbxname); // mailbox name
if(ret == SS$_NORMAL) { chanid = chan_id; return; }
else { status = COULD_NOT_CREATE_MAILBOX; return; }
#endif
#ifdef RLWIN32
chanid = -1;
status = OK;
name = new char[strlen(mbxname)+1];
strcpy(name,mbxname);
#endif
}
}
break;
}
default:
break;
}
}
/*
** create mailbox for passing commands to the new process.
** Get the device name of the mailbox to to be used as input
** stream for new process.
*/
status = sys$crembx( 0, &chan, 0, 0, 0, PSL$C_USER, NULL );
if ( !(status & 1) )
{
log_errmsg( "SYS$CREMBX(1) failed", status, 1 );
return ( status );
}
dviitem = DVI$_DEVNAM;
$DESCFILL( input, sizeof( inbuf ), inbuf );
status = lib$getdvi( &dviitem, &chan, NULL, NULL, &input, &input );
if ( !(status & 1) )
{
log_errmsg( "LIB$GETDVI(1) failed", status, 1 );
return ( status );
}
main(){
struct _iosb myiosb;
char mybuf1[MBXBUFSIZ]="test1";
char mybuf2[MBXBUFSIZ]="test2";
char mybuf3[MBXBUFSIZ]="test3";
char * out1="hello";
char * out2="world";
char * out3="hi";
void *p1, mbxast();
char mbuffer[MBXBUFSIZ];
unsigned short mbxchan1, mbxchan2, mbxchan3, mbxiosb;
unsigned int status, outlen;
unsigned int mbuflen=MBXBUFSIZ, bufquo=MBXBUFQUO, promsk=0;
$DESCRIPTOR(mblognam1,"MAILBOX1");
$DESCRIPTOR(mblognam2,"MAILBOX2");
$DESCRIPTOR(mblognam3,"MAILBOX3");
printf("this was originally in 1: %s\n",mybuf1);
printf("this was originally in 2: %s\n",mybuf2);
printf("this was originally in 3: %s\n",mybuf3);
status = sys$crembx(0,&mbxchan1,mbuflen,bufquo,promsk,0,&mblognam1,0);
printf("status %x mbxchan %x \n", status,mbxchan1);
if ((status&1)==0) signal(status);
status = sys$crembx(0,&mbxchan2,mbuflen,bufquo,promsk,0,&mblognam2,0);
printf("status %x mbxchan %x \n", status,mbxchan2);
if ((status&1)==0) signal(status);
status = sys$crembx(0,&mbxchan3,mbuflen,bufquo,promsk,0,&mblognam3,0);
printf("status %x mbxchan %x \n", status,mbxchan3);
if ((status&1)==0) signal(status);
printf("before qio %x\n",time(0));
status=sys$qio(0,mbxchan1,IO$_READVBLK,0,0,0,mybuf1,512,0,0,0,0);
printf("after qio %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan1,IO$_WRITEVBLK,0,0,0,out1,strlen(out1),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan1,IO$_WRITEVBLK,0,0,0,out2,strlen(out2),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("this was read from 1: %s\n",mybuf1);
printf("Pausing...\n");
sleep(2);
printf("before qio %x\n",time(0));
status=sys$qio(0,mbxchan2,IO$_READVBLK|IO$M_STREAM,0,0,0,mybuf2,512,0,0,0,0);
printf("after qio %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan2,IO$_WRITEVBLK,0,0,0,out1,strlen(out1),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan2,IO$_WRITEVBLK,0,0,0,out2,strlen(out2),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("this was read from 2: %s\n",mybuf2);
printf("Pausing...\n");
sleep(2);
printf("before qio %x\n",time(0));
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan3,IO$_WRITEVBLK,0,0,0,out1,strlen(out1),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("before qiow %x\n",time(0));
status=sys$qio(0,mbxchan3,IO$_WRITEVBLK,0,0,0,out2,strlen(out2),0,0,0,0);
printf("after qiow %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
status=sys$qiow(0,mbxchan3,IO$_READVBLK|IO$M_STREAM,0,0,0,mybuf3,512,0,0,0,0);
printf("after qio %x\n",time(0));
printf("status %x done %x \n", status,done);
if ((status&1)==0) signal(status);
printf("this was read from 3: %s\n",mybuf3);
sleep(2);
{
struct item_list_3 { short buflen, item_code;
void *bufaddr;
void *retlenaddr;
} itmlist[2];
char buf[50];
int retlen;
itmlist[0].item_code=LNM$_STRING;
itmlist[0].bufaddr=buf;
itmlist[0].buflen=50;
itmlist[0].retlenaddr=&retlen;
itmlist[1].item_code=0;
itmlist[1].buflen=0;
itmlist[1].bufaddr=0;
$DESCRIPTOR(tab,"LNM$TEMPORARY_MAILBOX");
status = sys$trnlnm(0,
&tab,
&mblognam1, 0,
itmlist);
if ((status&1)==0) signal(status);
printf("mailbox1 translates to %s\n",buf);
}
return SS$_NORMAL;
}
