* 20-Aug-1999 revisions by Charles Bailey bailey@newman.upenn.edu
*/
-#include <accdef.h>
#include <acedef.h>
#include <acldef.h>
#include <armdef.h>
}
/*}}}*/
-/*{{{static void vmssetuserlnm(char *name, char *eqv);
+/*{{{static void vmssetuserlnm(char *name, char *eqv); */
/* vmssetuserlnm
* sets a user-mode logical in the process logical name table
* used for redirection of sys$error
unsigned long int exit_status;
};
+typedef struct _closed_pipes Xpipe;
+typedef struct _closed_pipes* pXpipe;
+
+struct _closed_pipes {
+ int pid; /* PID of subprocess */
+ unsigned long completion; /* termination status of subprocess */
+};
+#define NKEEPCLOSED 50
+static Xpipe closed_list[NKEEPCLOSED];
+static int closed_index = 0;
+static int closed_num = 0;
+
#define RETRY_DELAY "0 ::0.20"
#define MAX_RETRY 50
{
pInfo i = open_pipes;
int iss;
+ pXpipe x;
+
+ info->completion &= 0x0FFFFFFF; /* strip off "control" field */
+ closed_list[closed_index].pid = info->pid;
+ closed_list[closed_index].completion = info->completion;
+ closed_index++;
+ if (closed_index == NKEEPCLOSED)
+ closed_index = 0;
+ closed_num++;
while (i) {
if (i == info) break;
}
if (!i) return; /* unlinked, probably freed too */
- info->completion &= 0x0FFFFFFF; /* strip off "control" field */
info->done = TRUE;
/*
safe_popen(pTHX_ char *cmd, char *in_mode, int *psts)
{
static int handler_set_up = FALSE;
- unsigned long int sts, flags=1; /* nowait - gnu c doesn't allow &1 */
+ unsigned long int sts, flags = CLI$M_NOWAIT;
unsigned int table = LIB$K_CLI_GLOBAL_SYM;
int j, wait = 0;
char *p, mode[10], symbol[MAX_DCL_SYMBOL+1], *vmspipe;
info->next=open_pipes; /* prepend to list */
open_pipes=info;
_ckvmssts(sys$setast(1));
- _ckvmssts(lib$spawn(&vmspipedsc, &nl_desc, &nl_desc, &flags,
+ /* Omit arg 2 (input file) so the child will get the parent's SYS$INPUT
+ * and SYS$COMMAND. vmspipe.com will redefine SYS$INPUT, but we'll still
+ * have SYS$COMMAND if we need it.
+ */
+ _ckvmssts(lib$spawn(&vmspipedsc, 0, &nl_desc, &flags,
0, &info->pid, &info->completion,
0, popen_completion_ast,info,0,0,0));
pInfo info;
int done;
int sts;
+ int j;
if (statusp) *statusp = 0;
if (statusp) *statusp = info->completion;
return pid;
+ }
+
+ /* child that already terminated? */
+ for (j = 0; j < NKEEPCLOSED && j < closed_num; j++) {
+ if (closed_list[j].pid == pid) {
+ if (statusp) *statusp = closed_list[j].completion;
+ return pid;
+ }
}
- else { /* this child is not one of our own pipe children */
+
+ /* fall through if this child is not one of our own pipe children */
#if defined(__CRTL_VER) && __CRTL_VER >= 70100322
#endif /* defined(__CRTL_VER) && __CRTL_VER >= 70100322 */
+ {
$DESCRIPTOR(intdsc,"0 00:00:01");
unsigned long int ownercode = JPI$_OWNER, ownerpid;
unsigned long int pidcode = JPI$_PID, mypid;
unsigned long int interval[2];
- int termination_mbu = 0;
- unsigned short qio_iosb[4];
unsigned int jpi_iosb[2];
- struct itmlst_3 jpilist[3] = {
+ struct itmlst_3 jpilist[2] = {
{sizeof(ownerpid), JPI$_OWNER, &ownerpid, 0},
- {sizeof(termination_mbu), JPI$_TMBU, &termination_mbu, 0},
{ 0, 0, 0, 0}
};
- char trmmbx[NAM$C_DVI+1];
- $DESCRIPTOR(trmmbxdsc,trmmbx);
- struct accdef trmmsg;
- unsigned short int mbxchan;
if (pid <= 0) {
/* Sorry folks, we don't presently implement rooting around for
return -1;
}
- /* Get the owner of the child so I can warn if it's not mine, plus
- * get the termination mailbox. If the process doesn't exist or I
- * don't have the privs to look at it, I can go home early.
+ /* Get the owner of the child so I can warn if it's not mine. If the
+ * process doesn't exist or I don't have the privs to look at it,
+ * I can go home early.
*/
sts = sys$getjpiw(0,&pid,NULL,&jpilist,&jpi_iosb,NULL,NULL);
if (sts & 1) sts = jpi_iosb[0];
pid,mypid);
}
- /* It's possible to have a mailbox unit number but no actual mailbox; we
- * check for this by assigning a channel to it, which we need anyway.
- */
- if (termination_mbu != 0) {
- sprintf(trmmbx, "MBA%d:", termination_mbu);
- trmmbxdsc.dsc$w_length = strlen(trmmbx);
- sts = sys$assign(&trmmbxdsc, &mbxchan, 0, 0);
- if (sts == SS$_NOSUCHDEV) {
- termination_mbu = 0; /* set up to take "no mailbox" case */
- sts = SS$_NORMAL;
- }
- _ckvmssts(sts);
- }
- /* If the process doesn't have a termination mailbox, then simply check
- * on it once a second until it's not there anymore.
- */
- if (termination_mbu == 0) {
- _ckvmssts(sys$bintim(&intdsc,interval));
- while ((sts=lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0)) & 1) {
+ /* simply check on it once a second until it's not there anymore. */
+
+ _ckvmssts(sys$bintim(&intdsc,interval));
+ while ((sts=lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0)) & 1) {
_ckvmssts(sys$schdwk(0,0,interval,0));
_ckvmssts(sys$hiber());
- }
- if (sts == SS$_NONEXPR) sts = SS$_NORMAL;
- }
- else {
- /* If we do have a termination mailbox, post reads to it until we get a
- * termination message, discarding messages of the wrong type or for other
- * processes. If there is a place to put the final status, then do so.
- */
- sts = SS$_NORMAL;
- while (sts & 1) {
- memset((void *) &trmmsg, 0, sizeof(trmmsg));
- sts = sys$qiow(0,mbxchan,IO$_READVBLK,&qio_iosb,0,0,
- &trmmsg,ACC$K_TERMLEN,0,0,0,0);
- if (sts & 1) sts = qio_iosb[0];
-
- if ( sts & 1
- && trmmsg.acc$w_msgtyp == MSG$_DELPROC
- && trmmsg.acc$l_pid == pid ) {
-
- if (statusp) *statusp = trmmsg.acc$l_finalsts;
- sts = sys$dassgn(mbxchan);
- break;
- }
- }
- } /* termination_mbu ? */
+ }
+ if (sts == SS$_NONEXPR) sts = SS$_NORMAL;
_ckvmssts(sts);
return pid;
-
- } /* else one of our own pipe children */
-
+ }
} /* end of waitpid() */
/*}}}*/
/*}}}*/
char fileified[NAM$C_MAXRSS+1];
char temp_fspec[NAM$C_MAXRSS+300];
int retval = -1;
+ int saved_errno, saved_vaxc_errno;
if (!fspec) return retval;
+ saved_errno = errno; saved_vaxc_errno = vaxc$errno;
strcpy(temp_fspec, fspec);
if (statbufp == (Stat_t *) &PL_statcache)
do_tovmsspec(temp_fspec,namecache,0);
}
# endif
}
+ /* If we were successful, leave errno where we found it */
+ if (retval == 0) { errno = saved_errno; vaxc$errno = saved_vaxc_errno; }
return retval;
} /* end of flex_stat() */
projects / p5sagit/p5-mst-13.2.git / blobdiff