static void xstat _((void));
#endif
+#ifdef USE_THREADS
+static U32 threadnum = 0;
+#endif /* USE_THREADS */
+
#ifndef MYMALLOC
/* paranoid version of malloc */
*/
Malloc_t
-safemalloc(size)
-MEM_SIZE size;
+safemalloc(MEM_SIZE size)
{
Malloc_t ptr;
#ifdef HAS_64K_LIMIT
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* paranoid version of realloc */
Malloc_t
-saferealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+saferealloc(Malloc_t where,MEM_SIZE size)
{
Malloc_t ptr;
#if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
/* safe version of free */
Free_t
-safefree(where)
-Malloc_t where;
+safefree(Malloc_t where)
{
#if !(defined(I286) || defined(atarist))
- DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,an++));
#else
- DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
+ DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,an++));
#endif
if (where) {
/*SUPPRESS 701*/
/* safe version of calloc */
Malloc_t
-safecalloc(count, size)
-MEM_SIZE count;
-MEM_SIZE size;
+safecalloc(MEM_SIZE count, MEM_SIZE size)
{
Malloc_t ptr;
size *= count;
ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */
#if !(defined(I286) || defined(atarist))
- DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
#else
- DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size));
#endif
if (ptr != Nullch) {
memset((void*)ptr, 0, size);
else {
PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH;
my_exit(1);
+ return Nullch;
}
/*NOTREACHED*/
}
#define ALIGN sizeof(long)
Malloc_t
-safexmalloc(x,size)
-I32 x;
-MEM_SIZE size;
+safexmalloc(I32 x, MEM_SIZE size)
{
register Malloc_t where;
}
Malloc_t
-safexrealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+safexrealloc(Malloc_t where, MEM_SIZE size)
{
register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
return new + ALIGN;
}
void
-safexfree(where)
-Malloc_t where;
+safexfree(Malloc_t where)
{
I32 x;
}
Malloc_t
-safexcalloc(x,count,size)
-I32 x;
-MEM_SIZE count;
-MEM_SIZE size;
+safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size)
{
register Malloc_t where;
}
static void
-xstat()
+xstat(void)
{
register I32 i;
#endif /* LEAKTEST */
-/* copy a string up to some (non-backslashed) delimiter, if any;
- If the delimiter is ';', then do not consider backslashes -
- used only for PATH on DOSISH systems. */
+/* copy a string up to some (non-backslashed) delimiter, if any */
char *
-delimcpy(to, toend, from, fromend, delim, retlen)
-register char *to;
-register char *toend;
-register char *from;
-register char *fromend;
-register int delim;
-I32 *retlen;
+delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen)
{
register I32 tolen;
for (tolen = 0; from < fromend; from++, tolen++) {
- if (*from == '\\' && delim != ';') {
+ if (*from == '\\') {
if (from[1] == delim)
from++;
else {
/* This routine was donated by Corey Satten. */
char *
-instr(big, little)
-register char *big;
-register char *little;
+instr(register char *big, register char *little)
{
register char *s, *x;
register I32 first;
/* same as instr but allow embedded nulls */
char *
-ninstr(big, bigend, little, lend)
-register char *big;
-register char *bigend;
-char *little;
-char *lend;
+ninstr(register char *big, register char *bigend, char *little, char *lend)
{
register char *s, *x;
register I32 first = *little;
/* reverse of the above--find last substring */
char *
-rninstr(big, bigend, little, lend)
-register char *big;
-char *bigend;
-char *little;
-char *lend;
+rninstr(register char *big, char *bigend, char *little, char *lend)
{
register char *bigbeg;
register char *s, *x;
* Set up for a new ctype locale.
*/
void
-perl_new_ctype(newctype)
- char *newctype;
+perl_new_ctype(char *newctype)
{
#ifdef USE_LOCALE_CTYPE
* Set up for a new collation locale.
*/
void
-perl_new_collate(newcoll)
- char *newcoll;
+perl_new_collate(char *newcoll)
{
#ifdef USE_LOCALE_COLLATE
* Set up for a new numeric locale.
*/
void
-perl_new_numeric(newnum)
- char *newnum;
+perl_new_numeric(char *newnum)
{
#ifdef USE_LOCALE_NUMERIC
}
void
-perl_set_numeric_standard()
+perl_set_numeric_standard(void)
{
#ifdef USE_LOCALE_NUMERIC
}
void
-perl_set_numeric_local()
+perl_set_numeric_local(void)
{
#ifdef USE_LOCALE_NUMERIC
* Initialize locale awareness.
*/
int
-perl_init_i18nl10n(printwarn)
- int printwarn;
+perl_init_i18nl10n(int printwarn)
{
int ok = 1;
/* returns
&& strnNE(*e, "LC_ALL=", 7)
&& (p = strchr(*e, '=')))
PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n",
- (p - *e), *e, p + 1);
+ (int)(p - *e), *e, p + 1);
}
}
/* Backwards compatibility. */
int
-perl_init_i18nl14n(printwarn)
- int printwarn;
+perl_init_i18nl14n(int printwarn)
{
return perl_init_i18nl10n(printwarn);
}
* Please see sv_collxfrm() to see how this is used.
*/
char *
-mem_collxfrm(s, len, xlen)
- const char *s;
- STRLEN len;
- STRLEN *xlen;
+mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen)
{
char *xbuf;
STRLEN xalloc, xin, xout;
#endif /* USE_LOCALE_COLLATE */
void
-fbm_compile(sv)
-SV *sv;
+fbm_compile(SV *sv)
{
register unsigned char *s;
register unsigned char *table;
I32 rarest = 0;
U32 frequency = 256;
- if (len > 255)
+ sv_upgrade(sv, SVt_PVBM);
+ if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */
return; /* can't have offsets that big */
Sv_Grow(sv,len+258);
table = (unsigned char*)(SvPVX(sv) + len + 1);
table[*s] = i;
s--,i++;
}
- sv_upgrade(sv, SVt_PVBM);
sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */
SvVALID_on(sv);
}
char *
-fbm_instr(big, bigend, littlestr)
-unsigned char *big;
-register unsigned char *bigend;
-SV *littlestr;
+fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr)
{
register unsigned char *s;
register I32 tmp;
if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) {
STRLEN len;
char *l = SvPV(littlestr,len);
- if (!len)
+ if (!len) {
+ if (SvTAIL(littlestr)) {
+ if (bigend > big && bigend[-1] == '\n')
+ return (char *)(bigend - 1);
+ else
+ return (char *) bigend;
+ }
return (char*)big;
+ }
return ninstr((char*)big,(char*)bigend, l, l + len);
}
while (tmp--) {
if (*--s == *--little)
continue;
+ differ:
s = olds + 1; /* here we pay the price for failure */
little = oldlittle;
if (s < bigend) /* fake up continue to outer loop */
goto top2;
return Nullch;
}
+ if (SvTAIL(littlestr) /* automatically multiline */
+ && olds + 1 != bigend
+ && olds[1] != '\n')
+ goto differ;
return (char *)s;
}
}
return Nullch;
}
+/* start_shift, end_shift are positive quantities which give offsets
+ of ends of some substring of bigstr.
+ If `last' we want the last occurence.
+ old_posp is the way of communication between consequent calls if
+ the next call needs to find the .
+ The initial *old_posp should be -1.
+ Note that we do not take into account SvTAIL, so it may give wrong
+ positives if _ALL flag is set.
+ */
+
char *
-screaminstr(bigstr, littlestr)
-SV *bigstr;
-SV *littlestr;
+screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last)
{
register unsigned char *s, *x;
register unsigned char *big;
register I32 previous;
register I32 first;
register unsigned char *little;
- register unsigned char *bigend;
+ register I32 stop_pos;
register unsigned char *littleend;
+ I32 found = 0;
- if ((pos = screamfirst[BmRARE(littlestr)]) < 0)
+ if (*old_posp == -1
+ ? (pos = screamfirst[BmRARE(littlestr)]) < 0
+ : (((pos = *old_posp), pos += screamnext[pos]) == 0))
return Nullch;
little = (unsigned char *)(SvPVX(littlestr));
littleend = little + SvCUR(littlestr);
first = *little++;
+ /* The value of pos we can start at: */
previous = BmPREVIOUS(littlestr);
big = (unsigned char *)(SvPVX(bigstr));
- bigend = big + SvCUR(bigstr);
- while (pos < previous) {
+ /* The value of pos we can stop at: */
+ stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous);
+ if (previous + start_shift > stop_pos) return Nullch;
+ while (pos < previous + start_shift) {
if (!(pos += screamnext[pos]))
return Nullch;
}
#ifdef POINTERRIGOR
do {
+ if (pos >= stop_pos) return Nullch;
if (big[pos-previous] != first)
continue;
for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
- if (s == littleend)
- return (char *)(big+pos-previous);
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos-previous);
+ found = 1;
+ }
} while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch;
#else /* !POINTERRIGOR */
big -= previous;
do {
+ if (pos >= stop_pos) return Nullch;
if (big[pos] != first)
continue;
for (x=big+pos+1,s=little; s < littleend; /**/ ) {
- if (x >= bigend)
- return Nullch;
if (*s++ != *x++) {
s--;
break;
}
}
- if (s == littleend)
- return (char *)(big+pos);
+ if (s == littleend) {
+ *old_posp = pos;
+ if (!last) return (char *)(big+pos);
+ found = 1;
+ }
} while ( pos += screamnext[pos] );
+ return (last && found) ? (char *)(big+(*old_posp)) : Nullch;
#endif /* POINTERRIGOR */
- return Nullch;
}
I32
-ibcmp(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+ibcmp(char *s1, char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
}
I32
-ibcmp_locale(s1, s2, len)
-char *s1, *s2;
-register I32 len;
+ibcmp_locale(char *s1, char *s2, register I32 len)
{
register U8 *a = (U8 *)s1;
register U8 *b = (U8 *)s2;
/* copy a string to a safe spot */
char *
-savepv(sv)
-char *sv;
+savepv(char *sv)
{
register char *newaddr;
/* same thing but with a known length */
char *
-savepvn(sv, len)
-char *sv;
-register I32 len;
+savepvn(char *sv, register I32 len)
{
register char *newaddr;
/* the SV for form() and mess() is not kept in an arena */
static SV *
-mess_alloc()
+mess_alloc(void)
{
SV *sv;
XPVMG *any;
}
char *
-mess(pat, args)
- const char *pat;
- va_list *args;
+mess(const char *pat, va_list *args)
{
SV *sv;
static char dgd[] = " during global destruction.\n";
sv = mess_sv;
sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') {
+ dTHR;
if (dirty)
sv_catpv(sv, dgd);
else {
va_dcl
#endif
{
+ dTHR;
va_list args;
char *message;
- I32 oldrunlevel = runlevel;
int was_in_eval = in_eval;
HV *stash;
GV *gv;
CV *cv;
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: curstack = %p, mainstack = %p\n",
+ thr, curstack, mainstack));
+#endif /* USE_THREADS */
/* We have to switch back to mainstack or die_where may try to pop
* the eval block from the wrong stack if die is being called from a
* signal handler. - dkindred@cs.cmu.edu */
message = mess(pat, &args);
va_end(args);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: message = %s\ndiehook = %p\n",
+ thr, message, diehook));
+#endif /* USE_THREADS */
if (diehook) {
/* sv_2cv might call croak() */
SV *olddiehook = diehook;
}
restartop = die_where(message);
- if ((!restartop && was_in_eval) || oldrunlevel > 1)
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n",
+ thr, restartop, was_in_eval, top_env));
+#endif /* USE_THREADS */
+ if ((!restartop && was_in_eval) || top_env->je_prev)
JMPENV_JUMP(3);
return restartop;
}
va_dcl
#endif
{
+ dTHR;
va_list args;
char *message;
HV *stash;
#endif
message = mess(pat, &args);
va_end(args);
+#ifdef USE_THREADS
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message));
+#endif /* USE_THREADS */
if (diehook) {
/* sv_2cv might call croak() */
SV *olddiehook = diehook;
if (warnhook) {
/* sv_2cv might call warn() */
+ dTHR;
SV *oldwarnhook = warnhook;
ENTER;
SAVESPTR(warnhook);
#ifndef VMS /* VMS' my_setenv() is in VMS.c */
#ifndef WIN32
void
-my_setenv(nam,val)
-char *nam, *val;
+my_setenv(char *nam, char *val)
{
register I32 i=setenv_getix(nam); /* where does it go? */
#else /* if WIN32 */
void
-my_setenv(nam,val)
-char *nam, *val;
+my_setenv(char *nam,char *val)
{
#ifdef USE_WIN32_RTL_ENV
#endif /* WIN32 */
I32
-setenv_getix(nam)
-char *nam;
+setenv_getix(char *nam)
{
register I32 i, len = strlen(nam);
#if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY)
char *
-my_bcopy(from,to,len)
-register char *from;
-register char *to;
-register I32 len;
+my_bcopy(register char *from,register char *to,register I32 len)
{
char *retval = to;
/* VMS' my_popen() is in VMS.c, same with OS/2. */
#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
PerlIO *
-my_popen(cmd,mode)
-char *cmd;
-char *mode;
+my_popen(char *cmd, char *mode)
{
int p[2];
- register I32 this, that;
+ register I32 This, that;
register I32 pid;
SV *sv;
I32 doexec = strNE(cmd,"-");
#endif
if (pipe(p) < 0)
return Nullfp;
- this = (*mode == 'w');
- that = !this;
+ This = (*mode == 'w');
+ that = !This;
if (doexec && tainting) {
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
while ((pid = (doexec?vfork():fork())) < 0) {
if (errno != EAGAIN) {
- close(p[this]);
+ close(p[This]);
if (!doexec)
croak("Can't fork");
return Nullfp;
GV* tmpgv;
#define THIS that
-#define THAT this
+#define THAT This
close(p[THAT]);
if (p[THIS] != (*mode == 'r')) {
dup2(p[THIS], *mode == 'r');
}
do_execfree(); /* free any memory malloced by child on vfork */
close(p[that]);
- if (p[that] < p[this]) {
- dup2(p[this], p[that]);
- close(p[this]);
- p[this] = p[that];
+ if (p[that] < p[This]) {
+ dup2(p[This], p[that]);
+ close(p[This]);
+ p[This] = p[that];
}
- sv = *av_fetch(fdpid,p[this],TRUE);
+ sv = *av_fetch(fdpid,p[This],TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = pid;
forkprocess = pid;
- return PerlIO_fdopen(p[this], mode);
+ return PerlIO_fdopen(p[This], mode);
}
#else
#if defined(atarist) || defined(DJGPP)
#ifdef HAS_SIGACTION
Sighandler_t
-rsignal(signo, handler)
-int signo;
-Sighandler_t handler;
+rsignal(int signo, Sighandler_t handler)
{
struct sigaction act, oact;
}
Sighandler_t
-rsignal_state(signo)
-int signo;
+rsignal_state(int signo)
{
struct sigaction oact;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save)
{
struct sigaction act;
}
int
-rsignal_restore(signo, save)
-int signo;
-Sigsave_t *save;
+rsignal_restore(int signo, Sigsave_t *save)
{
return sigaction(signo, save, (struct sigaction *)NULL);
}
#else /* !HAS_SIGACTION */
Sighandler_t
-rsignal(signo, handler)
-int signo;
-Sighandler_t handler;
+rsignal(int signo, Sighandler_t handler)
{
return signal(signo, handler);
}
static
Signal_t
-sig_trap(signo)
-int signo;
+sig_trap(int signo)
{
sig_trapped++;
}
Sighandler_t
-rsignal_state(signo)
-int signo;
+rsignal_state(int signo)
{
Sighandler_t oldsig;
}
int
-rsignal_save(signo, handler, save)
-int signo;
-Sighandler_t handler;
-Sigsave_t *save;
+rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save)
{
*save = signal(signo, handler);
return (*save == SIG_ERR) ? -1 : 0;
}
int
-rsignal_restore(signo, save)
-int signo;
-Sigsave_t *save;
+rsignal_restore(int signo, Sigsave_t *save)
{
return (signal(signo, *save) == SIG_ERR) ? -1 : 0;
}
/* VMS' my_pclose() is in VMS.c; same with OS/2 */
#if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS)
I32
-my_pclose(ptr)
-PerlIO *ptr;
+my_pclose(FILE *ptr)
{
Sigsave_t hstat, istat, qstat;
int status;
#if !defined(DOSISH) || defined(OS2)
I32
-wait4pid(pid,statusp,flags)
-int pid;
-int *statusp;
-int flags;
+wait4pid(int pid, int *statusp, int flags)
{
SV *sv;
SV** svp;
}
}
#ifdef HAS_WAITPID
+# ifdef HAS_WAITPID_RUNTIME
+ if (!HAS_WAITPID_RUNTIME)
+ goto hard_way;
+# endif
return waitpid(pid,statusp,flags);
-#else
-#ifdef HAS_WAIT4
+#endif
+#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
-#else
+#endif
+#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
+ hard_way:
{
I32 result;
if (flags)
return result;
}
#endif
-#endif
}
#endif /* !DOSISH */
void
/*SUPPRESS 590*/
-pidgone(pid,status)
-int pid;
-int status;
+pidgone(int pid, int status)
{
register SV *sv;
char spid[TYPE_CHARS(int)];
#endif
void
-repeatcpy(to,from,len,count)
-register char *to;
-register char *from;
-I32 len;
-register I32 count;
+repeatcpy(register char *to, register char *from, I32 len, register I32 count)
{
register I32 todo;
register char *frombase = from;
#endif /* !HAS_RENAME */
UV
-scan_oct(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+scan_oct(char *start, I32 len, I32 *retlen)
{
register char *s = start;
register UV retval = 0;
}
UV
-scan_hex(start, len, retlen)
-char *start;
-I32 len;
-I32 *retlen;
+scan_hex(char *start, I32 len, I32 *retlen)
{
register char *s = start;
register UV retval = 0;
bool overflowed = FALSE;
char *tmp;
- while (len-- && *s && (tmp = strchr(hexdigit, *s))) {
+ while (len-- && *s && (tmp = strchr((char *) hexdigit, *s))) {
register UV n = retval << 4;
if (!overflowed && (n >> 4) != retval) {
warn("Integer overflow in hex number");
overflowed = TRUE;
}
- retval = n | (tmp - hexdigit) & 15;
+ retval = n | ((tmp - hexdigit) & 15);
s++;
}
*retlen = s - start;
return retval;
}
+#ifdef USE_THREADS
+#ifdef FAKE_THREADS
+/* Very simplistic scheduler for now */
+void
+schedule(void)
+{
+ thr = thr->i.next_run;
+}
+
+void
+perl_cond_init(cp)
+perl_cond *cp;
+{
+ *cp = 0;
+}
+
+void
+perl_cond_signal(cp)
+perl_cond *cp;
+{
+ perl_thread t;
+ perl_cond cond = *cp;
+
+ if (!cond)
+ return;
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ *cp = cond->next;
+ Safefree(cond);
+}
+
+void
+perl_cond_broadcast(cp)
+perl_cond *cp;
+{
+ perl_thread t;
+ perl_cond cond, cond_next;
+
+ for (cond = *cp; cond; cond = cond_next) {
+ t = cond->thread;
+ /* Insert t in the runnable queue just ahead of us */
+ t->i.next_run = thr->i.next_run;
+ thr->i.next_run->i.prev_run = t;
+ t->i.prev_run = thr;
+ thr->i.next_run = t;
+ thr->i.wait_queue = 0;
+ /* Remove from the wait queue */
+ cond_next = cond->next;
+ Safefree(cond);
+ }
+ *cp = 0;
+}
+
+void
+perl_cond_wait(cp)
+perl_cond *cp;
+{
+ perl_cond cond;
+
+ if (thr->i.next_run == thr)
+ croak("panic: perl_cond_wait called by last runnable thread");
+
+ New(666, cond, 1, struct perl_wait_queue);
+ cond->thread = thr;
+ cond->next = *cp;
+ *cp = cond;
+ thr->i.wait_queue = cond;
+ /* Remove ourselves from runnable queue */
+ thr->i.next_run->i.prev_run = thr->i.prev_run;
+ thr->i.prev_run->i.next_run = thr->i.next_run;
+}
+#endif /* FAKE_THREADS */
+
+#ifdef OLD_PTHREADS_API
+struct thread *
+getTHR _((void))
+{
+ pthread_addr_t t;
+
+ if (pthread_getspecific(thr_key, &t))
+ croak("panic: pthread_getspecific");
+ return (struct thread *) t;
+}
+#endif /* OLD_PTHREADS_API */
+
+MAGIC *
+condpair_magic(SV *sv)
+{
+ MAGIC *mg;
+
+ SvUPGRADE(sv, SVt_PVMG);
+ mg = mg_find(sv, 'm');
+ if (!mg) {
+ condpair_t *cp;
+
+ New(53, cp, 1, condpair_t);
+ MUTEX_INIT(&cp->mutex);
+ COND_INIT(&cp->owner_cond);
+ COND_INIT(&cp->cond);
+ cp->owner = 0;
+ MUTEX_LOCK(&sv_mutex);
+ mg = mg_find(sv, 'm');
+ if (mg) {
+ /* someone else beat us to initialising it */
+ MUTEX_UNLOCK(&sv_mutex);
+ MUTEX_DESTROY(&cp->mutex);
+ COND_DESTROY(&cp->owner_cond);
+ COND_DESTROY(&cp->cond);
+ Safefree(cp);
+ }
+ else {
+ sv_magic(sv, Nullsv, 'm', 0, 0);
+ mg = SvMAGIC(sv);
+ mg->mg_ptr = (char *)cp;
+ mg->mg_len = sizeof(cp);
+ MUTEX_UNLOCK(&sv_mutex);
+ DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(),
+ "%p: condpair_magic %p\n", thr, sv));)
+ }
+ }
+ return mg;
+}
+
+/*
+ * Make a new perl thread structure using t as a prototype. Some of the
+ * fields for the new thread are copied from the prototype thread, t,
+ * so t should not be running in perl at the time this function is
+ * called. The use by ext/Thread/Thread.xs in core perl (where t is the
+ * thread calling new_struct_thread) clearly satisfies this constraint.
+ */
+struct thread *
+new_struct_thread(struct thread *t)
+{
+ struct thread *thr;
+ SV *sv;
+ SV **svp;
+ I32 i;
+
+ sv = newSVpv("", 0);
+ SvGROW(sv, sizeof(struct thread) + 1);
+ SvCUR_set(sv, sizeof(struct thread));
+ thr = (Thread) SvPVX(sv);
+ /* debug */
+ memset(thr, 0xab, sizeof(struct thread));
+ markstack = 0;
+ scopestack = 0;
+ savestack = 0;
+ retstack = 0;
+ dirty = 0;
+ localizing = 0;
+ /* end debug */
+
+ thr->oursv = sv;
+ init_stacks(ARGS);
+
+ curcop = &compiling;
+ thr->cvcache = newHV();
+ thr->threadsv = newAV();
+ thr->specific = newAV();
+ thr->errsv = newSVpv("", 0);
+ thr->errhv = newHV();
+ thr->flags = THRf_R_JOINABLE;
+ MUTEX_INIT(&thr->mutex);
+
+ curcop = t->Tcurcop; /* XXX As good a guess as any? */
+ defstash = t->Tdefstash; /* XXX maybe these should */
+ curstash = t->Tcurstash; /* always be set to main? */
+
+
+ /* top_env needs to be non-zero. It points to an area
+ in which longjmp() stuff is stored, as C callstack
+ info there at least is thread specific this has to
+ be per-thread. Otherwise a 'die' in a thread gives
+ that thread the C stack of last thread to do an eval {}!
+ See comments in scope.h
+ Initialize top entry (as in perl.c for main thread)
+ */
+ start_env.je_prev = NULL;
+ start_env.je_ret = -1;
+ start_env.je_mustcatch = TRUE;
+ top_env = &start_env;
+
+ in_eval = FALSE;
+ restartop = 0;
+
+ tainted = t->Ttainted;
+ curpm = t->Tcurpm; /* XXX No PMOP ref count */
+ nrs = newSVsv(t->Tnrs);
+ rs = newSVsv(t->Trs);
+ last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv);
+ ofslen = t->Tofslen;
+ ofs = savepvn(t->Tofs, ofslen);
+ defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv);
+ chopset = t->Tchopset;
+ formtarget = newSVsv(t->Tformtarget);
+ bodytarget = newSVsv(t->Tbodytarget);
+ toptarget = newSVsv(t->Ttoptarget);
+
+ /* Initialise all per-thread SVs that the template thread used */
+ svp = AvARRAY(t->threadsv);
+ for (i = 0; i <= AvFILL(t->threadsv); i++, svp++) {
+ if (*svp && *svp != &sv_undef) {
+ SV *sv = newSVsv(*svp);
+ av_store(thr->threadsv, i, sv);
+ sv_magic(sv, 0, 0, &threadsv_names[i], 1);
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr));
+ }
+ }
+
+ MUTEX_LOCK(&threads_mutex);
+ nthreads++;
+ thr->tid = ++threadnum;
+ thr->next = t->next;
+ thr->prev = t;
+ t->next = thr;
+ thr->next->prev = thr;
+ MUTEX_UNLOCK(&threads_mutex);
+
+#ifdef HAVE_THREAD_INTERN
+ init_thread_intern(thr);
+#endif /* HAVE_THREAD_INTERN */
+ return thr;
+}
+#endif /* USE_THREADS */
#ifdef HUGE_VAL
/*
* Needed for SunOS with Sun's 'acc' for example.
*/
double
-Perl_huge()
+Perl_huge(void)
{
return HUGE_VAL;
}
#endif
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff