/* util.c
*
- * Copyright (c) 1991-2001, Larry Wall
+ * Copyright (c) 1991-2002, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
# include <sys/wait.h>
#endif
-#define FLUSH
-
-#ifdef LEAKTEST
-
-long xcount[MAXXCOUNT];
-long lastxcount[MAXXCOUNT];
-long xycount[MAXXCOUNT][MAXYCOUNT];
-long lastxycount[MAXXCOUNT][MAXYCOUNT];
-
+#ifdef HAS_SELECT
+# ifdef I_SYS_SELECT
+# include <sys/select.h>
+# endif
#endif
+#define FLUSH
+
#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
# define FD_CLOEXEC 1 /* NeXT needs this */
#endif
else {
PerlIO_puts(Perl_error_log,PL_no_mem) FLUSH;
my_exit(1);
- return Nullch;
+ return Nullch;
}
/*NOTREACHED*/
}
/*NOTREACHED*/
}
-#ifdef LEAKTEST
-
-struct mem_test_strut {
- union {
- long type;
- char c[2];
- } u;
- long size;
-};
-
-# define ALIGN sizeof(struct mem_test_strut)
-
-# define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size)
-# define typeof_chunk(ch) \
- (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100)
-# define set_typeof_chunk(ch,t) \
- (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100)
-#define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \
- ? MAXYCOUNT - 1 \
- : ( (size) > 40 \
- ? ((size) - 1)/8 + 5 \
- : ((size) - 1)/4))
-
-Malloc_t
-Perl_safexmalloc(I32 x, MEM_SIZE size)
-{
- register char* where = (char*)safemalloc(size + ALIGN);
-
- xcount[x] += size;
- xycount[x][SIZE_TO_Y(size)]++;
- set_typeof_chunk(where, x);
- sizeof_chunk(where) = size;
- return (Malloc_t)(where + ALIGN);
-}
-
-Malloc_t
-Perl_safexrealloc(Malloc_t wh, MEM_SIZE size)
-{
- char *where = (char*)wh;
-
- if (!wh)
- return safexmalloc(0,size);
-
- {
- MEM_SIZE old = sizeof_chunk(where - ALIGN);
- int t = typeof_chunk(where - ALIGN);
- register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN);
-
- xycount[t][SIZE_TO_Y(old)]--;
- xycount[t][SIZE_TO_Y(size)]++;
- xcount[t] += size - old;
- sizeof_chunk(new) = size;
- return (Malloc_t)(new + ALIGN);
- }
-}
-
-void
-Perl_safexfree(Malloc_t wh)
-{
- I32 x;
- char *where = (char*)wh;
- MEM_SIZE size;
-
- if (!where)
- return;
- where -= ALIGN;
- size = sizeof_chunk(where);
- x = where[0] + 100 * where[1];
- xcount[x] -= size;
- xycount[x][SIZE_TO_Y(size)]--;
- safefree(where);
-}
-
-Malloc_t
-Perl_safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size)
-{
- register char * where = (char*)safexmalloc(x, size * count + ALIGN);
- xcount[x] += size;
- xycount[x][SIZE_TO_Y(size)]++;
- memset((void*)(where + ALIGN), 0, size * count);
- set_typeof_chunk(where, x);
- sizeof_chunk(where) = size;
- return (Malloc_t)(where + ALIGN);
-}
-
-STATIC void
-S_xstat(pTHX_ int flag)
-{
- register I32 i, j, total = 0;
- I32 subtot[MAXYCOUNT];
-
- for (j = 0; j < MAXYCOUNT; j++) {
- subtot[j] = 0;
- }
-
- PerlIO_printf(Perl_debug_log, " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total);
- for (i = 0; i < MAXXCOUNT; i++) {
- total += xcount[i];
- for (j = 0; j < MAXYCOUNT; j++) {
- subtot[j] += xycount[i][j];
- }
- if (flag == 0
- ? xcount[i] /* Have something */
- : (flag == 2
- ? xcount[i] != lastxcount[i] /* Changed */
- : xcount[i] > lastxcount[i])) { /* Growed */
- PerlIO_printf(Perl_debug_log,"%2d %02d %7ld ", i / 100, i % 100,
- flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]);
- lastxcount[i] = xcount[i];
- for (j = 0; j < MAXYCOUNT; j++) {
- if ( flag == 0
- ? xycount[i][j] /* Have something */
- : (flag == 2
- ? xycount[i][j] != lastxycount[i][j] /* Changed */
- : xycount[i][j] > lastxycount[i][j])) { /* Growed */
- PerlIO_printf(Perl_debug_log,"%3ld ",
- flag == 2
- ? xycount[i][j] - lastxycount[i][j]
- : xycount[i][j]);
- lastxycount[i][j] = xycount[i][j];
- } else {
- PerlIO_printf(Perl_debug_log, " . ", xycount[i][j]);
- }
- }
- PerlIO_printf(Perl_debug_log, "\n");
- }
- }
- if (flag != 2) {
- PerlIO_printf(Perl_debug_log, "Total %7ld ", total);
- for (j = 0; j < MAXYCOUNT; j++) {
- if (subtot[j]) {
- PerlIO_printf(Perl_debug_log, "%3ld ", subtot[j]);
- } else {
- PerlIO_printf(Perl_debug_log, " . ");
- }
- }
- PerlIO_printf(Perl_debug_log, "\n");
- }
-}
-
-#endif /* LEAKTEST */
-
/* These must be defined when not using Perl's malloc for binary
* compatibility */
Malloc_t Perl_malloc (MEM_SIZE nbytes)
{
dTHXs;
- return PerlMem_malloc(nbytes);
+ return (Malloc_t)PerlMem_malloc(nbytes);
}
Malloc_t Perl_calloc (MEM_SIZE elements, MEM_SIZE size)
{
dTHXs;
- return PerlMem_calloc(elements, size);
+ return (Malloc_t)PerlMem_calloc(elements, size);
}
Malloc_t Perl_realloc (Malloc_t where, MEM_SIZE nbytes)
{
dTHXs;
- return PerlMem_realloc(where, nbytes);
+ return (Malloc_t)PerlMem_realloc(where, nbytes);
}
Free_t Perl_mfree (Malloc_t where)
If FBMcf_TAIL, the table is created as if the string has a trailing \n. */
/*
+=head1 Miscellaneous Functions
+
=for apidoc fbm_compile
Analyses the string in order to make fast searches on it using fbm_instr()
}
}
BmRARE(sv) = s[rarest];
- BmPREVIOUS(sv) = rarest;
+ BmPREVIOUS(sv) = (U16)rarest;
BmUSEFUL(sv) = 100; /* Initial value */
if (flags & FBMcf_TAIL)
SvTAIL_on(sv);
register STRLEN littlelen = l;
register I32 multiline = flags & FBMrf_MULTILINE;
- if (bigend - big < littlelen) {
+ if ((STRLEN)(bigend - big) < littlelen) {
if ( SvTAIL(littlestr)
- && (bigend - big == littlelen - 1)
+ && ((STRLEN)(bigend - big) == littlelen - 1)
&& (littlelen == 1
|| (*big == *little &&
memEQ((char *)big, (char *)little, littlelen - 1))))
register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET;
register unsigned char *oldlittle;
- if (littlelen > bigend - big)
+ if (littlelen > (STRLEN)(bigend - big))
return Nullch;
--littlelen; /* Last char found by table lookup */
/* start_shift, end_shift are positive quantities which give offsets
of ends of some substring of bigstr.
- If `last' we want the last occurence.
+ If `last' we want the last occurrence.
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.
/* copy a string to a safe spot */
/*
+=head1 Memory Management
+
=for apidoc savepv
-Copy a string to a safe spot. This does not use an SV.
+Perl's version of C<strdup()>. Returns a pointer to a newly allocated
+string which is a duplicate of C<pv>. The size of the string is
+determined by C<strlen()>. The memory allocated for the new string can
+be freed with the C<Safefree()> function.
=cut
*/
char *
-Perl_savepv(pTHX_ const char *sv)
+Perl_savepv(pTHX_ const char *pv)
{
- register char *newaddr;
-
- New(902,newaddr,strlen(sv)+1,char);
- (void)strcpy(newaddr,sv);
+ register char *newaddr = Nullch;
+ if (pv) {
+ New(902,newaddr,strlen(pv)+1,char);
+ (void)strcpy(newaddr,pv);
+ }
return newaddr;
}
/*
=for apidoc savepvn
-Copy a string to a safe spot. The C<len> indicates number of bytes to
-copy. This does not use an SV.
+Perl's version of what C<strndup()> would be if it existed. Returns a
+pointer to a newly allocated string which is a duplicate of the first
+C<len> bytes from C<pv>. The memory allocated for the new string can be
+freed with the C<Safefree()> function.
=cut
*/
char *
-Perl_savepvn(pTHX_ const char *sv, register I32 len)
+Perl_savepvn(pTHX_ const char *pv, register I32 len)
{
register char *newaddr;
New(903,newaddr,len+1,char);
- Copy(sv,newaddr,len,char); /* might not be null terminated */
- newaddr[len] = '\0'; /* is now */
+ /* Give a meaning to NULL pointer mainly for the use in sv_magic() */
+ if (pv) {
+ Copy(pv,newaddr,len,char); /* might not be null terminated */
+ newaddr[len] = '\0'; /* is now */
+ }
+ else {
+ Zero(newaddr,len+1,char);
+ }
return newaddr;
}
+/*
+=for apidoc savesharedpv
+
+A version of C<savepv()> which allocates the duplicate string in memory
+which is shared between threads.
+
+=cut
+*/
+char *
+Perl_savesharedpv(pTHX_ const char *pv)
+{
+ register char *newaddr = Nullch;
+ if (pv) {
+ newaddr = (char*)PerlMemShared_malloc(strlen(pv)+1);
+ (void)strcpy(newaddr,pv);
+ }
+ return newaddr;
+}
+
+
+
/* the SV for Perl_form() and mess() is not kept in an arena */
STATIC SV *
}
#endif /* PERL_IMPLICIT_CONTEXT */
+/*
+=head1 Miscellaneous Functions
+=for apidoc form
+
+Takes a sprintf-style format pattern and conventional
+(non-SV) arguments and returns the formatted string.
+
+ (char *) Perl_form(pTHX_ const char* pat, ...)
+
+can be used any place a string (char *) is required:
+
+ char * s = Perl_form("%d.%d",major,minor);
+
+Uses a single private buffer so if you want to format several strings you
+must explicitly copy the earlier strings away (and free the copies when you
+are done).
+
+=cut
+*/
+
char *
Perl_form(pTHX_ const char* pat, ...)
{
if (CopLINE(cop))
Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf,
- CopFILE(cop), (IV)CopLINE(cop));
+ OutCopFILE(cop), (IV)CopLINE(cop));
if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) {
bool line_mode = (RsSIMPLE(PL_rs) &&
SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n');
Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %"IVdf,
- PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv),
- line_mode ? "line" : "chunk",
- (IV)IoLINES(GvIOp(PL_last_in_gv)));
+ PL_last_in_gv == PL_argvgv ?
+ "" : GvNAME(PL_last_in_gv),
+ line_mode ? "line" : "chunk",
+ (IV)IoLINES(GvIOp(PL_last_in_gv)));
}
#ifdef USE_5005THREADS
if (thr->tid)
#endif /* PERL_IMPLICIT_CONTEXT */
/*
+=head1 Warning and Dieing
+
=for apidoc croak
This is the XSUB-writer's interface to Perl's C<die> function.
CV *cv;
SV *msv;
STRLEN msglen;
+ IO *io;
+ MAGIC *mg;
msv = vmess(pat, args);
message = SvPV(msv, msglen);
return;
}
}
+
+ /* if STDERR is tied, use it instead */
+ if (PL_stderrgv && (io = GvIOp(PL_stderrgv))
+ && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
+ dSP; ENTER;
+ PUSHMARK(SP);
+ XPUSHs(SvTIED_obj((SV*)io, mg));
+ XPUSHs(sv_2mortal(newSVpvn(message, msglen)));
+ PUTBACK;
+ call_method("PRINT", G_SCALAR);
+ LEAVE;
+ return;
+ }
+
{
PerlIO *serr = Perl_error_log;
PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
-#ifdef LEAKTEST
- DEBUG_L(*message == '!'
- ? (xstat(message[1]=='!'
- ? (message[2]=='!' ? 2 : 1)
- : 0)
- , 0)
- : 0);
-#endif
(void)PerlIO_flush(serr);
}
}
if (ckDEAD(err)) {
#ifdef USE_5005THREADS
- DEBUG_S(PerlIO_printf(Perl_debug_log, "croak: 0x%"UVxf" %s", PTR2UV(thr), message));
+ DEBUG_S(PerlIO_printf(Perl_debug_log, "croak: 0x%"UVxf" %s", PTR2UV(thr), message));
#endif /* USE_5005THREADS */
- if (PL_diehook) {
- /* sv_2cv might call Perl_croak() */
- SV *olddiehook = PL_diehook;
- ENTER;
- SAVESPTR(PL_diehook);
- PL_diehook = Nullsv;
- cv = sv_2cv(olddiehook, &stash, &gv, 0);
- LEAVE;
- if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
- dSP;
- SV *msg;
-
- ENTER;
+ if (PL_diehook) {
+ /* sv_2cv might call Perl_croak() */
+ SV *olddiehook = PL_diehook;
+ ENTER;
+ SAVESPTR(PL_diehook);
+ PL_diehook = Nullsv;
+ cv = sv_2cv(olddiehook, &stash, &gv, 0);
+ LEAVE;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
+
+ ENTER;
save_re_context();
- msg = newSVpvn(message, msglen);
- SvREADONLY_on(msg);
- SAVEFREESV(msg);
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
PUSHSTACKi(PERLSI_DIEHOOK);
- PUSHMARK(sp);
- XPUSHs(msg);
- PUTBACK;
- call_sv((SV*)cv, G_DISCARD);
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ call_sv((SV*)cv, G_DISCARD);
POPSTACK;
- LEAVE;
- }
- }
- if (PL_in_eval) {
- PL_restartop = die_where(message, msglen);
- JMPENV_JUMP(3);
- }
+ LEAVE;
+ }
+ }
+ if (PL_in_eval) {
+ PL_restartop = die_where(message, msglen);
+ JMPENV_JUMP(3);
+ }
{
PerlIO *serr = Perl_error_log;
PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
(void)PerlIO_flush(serr);
}
- my_failure_exit();
-
+ my_failure_exit();
}
else {
- if (PL_warnhook) {
- /* sv_2cv might call Perl_warn() */
- SV *oldwarnhook = PL_warnhook;
- ENTER;
- SAVESPTR(PL_warnhook);
- PL_warnhook = Nullsv;
- cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
+ if (PL_warnhook) {
+ /* sv_2cv might call Perl_warn() */
+ SV *oldwarnhook = PL_warnhook;
+ ENTER;
+ SAVESPTR(PL_warnhook);
+ PL_warnhook = Nullsv;
+ cv = sv_2cv(oldwarnhook, &stash, &gv, 0);
LEAVE;
- if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
- dSP;
- SV *msg;
+ if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) {
+ dSP;
+ SV *msg;
- ENTER;
+ ENTER;
save_re_context();
- msg = newSVpvn(message, msglen);
- SvREADONLY_on(msg);
- SAVEFREESV(msg);
+ msg = newSVpvn(message, msglen);
+ SvREADONLY_on(msg);
+ SAVEFREESV(msg);
PUSHSTACKi(PERLSI_WARNHOOK);
- PUSHMARK(sp);
- XPUSHs(msg);
- PUTBACK;
- call_sv((SV*)cv, G_DISCARD);
+ PUSHMARK(sp);
+ XPUSHs(msg);
+ PUTBACK;
+ call_sv((SV*)cv, G_DISCARD);
POPSTACK;
- LEAVE;
- return;
- }
- }
+ LEAVE;
+ return;
+ }
+ }
{
PerlIO *serr = Perl_error_log;
PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen);
-#ifdef LEAKTEST
- DEBUG_L(*message == '!'
- ? (xstat(message[1]=='!'
- ? (message[2]=='!' ? 2 : 1)
- : 0)
- , 0)
- : 0);
-#endif
(void)PerlIO_flush(serr);
}
}
*(s+(nlen+1+vlen)) = '\0'
#ifdef USE_ENVIRON_ARRAY
- /* VMS' and EPOC's my_setenv() is in vms.c and epoc.c */
+ /* VMS' my_setenv() is in vms.c */
#if !defined(WIN32) && !defined(NETWARE)
void
Perl_my_setenv(pTHX_ char *nam, char *val)
{
+#ifdef USE_ITHREADS
+ /* only parent thread can modify process environment */
+ if (PL_curinterp == aTHX)
+#endif
+ {
#ifndef PERL_USE_SAFE_PUTENV
/* most putenv()s leak, so we manipulate environ directly */
register I32 i=setenv_getix(nam); /* where does it go? */
for (max = i; environ[max]; max++) ;
tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*));
for (j=0; j<max; j++) { /* copy environment */
- int len = strlen(environ[j]);
- tmpenv[j] = (char*)safesysmalloc((len+1)*sizeof(char));
- Copy(environ[j], tmpenv[j], len+1, char);
+ int len = strlen(environ[j]);
+ tmpenv[j] = (char*)safesysmalloc((len+1)*sizeof(char));
+ Copy(environ[j], tmpenv[j], len+1, char);
}
tmpenv[max] = Nullch;
environ = tmpenv; /* tell exec where it is now */
my_setenv_format(environ[i], nam, nlen, val, vlen);
#else /* PERL_USE_SAFE_PUTENV */
-# if defined(__CYGWIN__)
+# if defined(__CYGWIN__) || defined( EPOC)
setenv(nam, val, 1);
# else
char *new_env;
int nlen = strlen(nam), vlen;
if (!val) {
- val = "";
+ val = "";
}
vlen = strlen(val);
new_env = (char*)safesysmalloc((nlen + vlen + 2) * sizeof(char));
(void)putenv(new_env);
# endif /* __CYGWIN__ */
#endif /* PERL_USE_SAFE_PUTENV */
+ }
}
#else /* WIN32 || NETWARE */
while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
PerlLIO_close(p[This]);
+ PerlLIO_close(p[that]);
if (did_pipes) {
PerlLIO_close(pp[0]);
PerlLIO_close(pp[1]);
#undef THAT
#define THIS that
#define THAT This
- /* Close parent's end of _the_ pipe */
- PerlLIO_close(p[THAT]);
/* Close parent's end of error status pipe (if any) */
if (did_pipes) {
PerlLIO_close(pp[0]);
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
PerlLIO_close(p[THIS]);
+ if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
+ PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
}
+ else
+ PerlLIO_close(p[THAT]); /* close parent's end of _the_ pipe */
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
/* No automatic close - do it by hand */
# ifndef NOFILE
int fd;
for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) {
- if (fd != pp[1])
+ if (fd != pp[1])
PerlLIO_close(fd);
}
}
}
/* Parent */
do_execfree(); /* free any memory malloced by child on fork */
- /* Close child's end of pipe */
- PerlLIO_close(p[that]);
if (did_pipes)
PerlLIO_close(pp[1]);
/* Keep the lower of the two fd numbers */
PerlLIO_close(p[This]);
p[This] = p[that];
}
+ else
+ PerlLIO_close(p[that]); /* close child's end of pipe */
+
LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,p[This],TRUE);
UNLOCK_FDPID_MUTEX;
while ((pid = PerlProc_fork()) < 0) {
if (errno != EAGAIN) {
PerlLIO_close(p[This]);
+ PerlLIO_close(p[that]);
if (did_pipes) {
PerlLIO_close(pp[0]);
PerlLIO_close(pp[1]);
#undef THAT
#define THIS that
#define THAT This
- PerlLIO_close(p[THAT]);
if (did_pipes) {
PerlLIO_close(pp[0]);
#if defined(HAS_FCNTL) && defined(F_SETFD)
if (p[THIS] != (*mode == 'r')) {
PerlLIO_dup2(p[THIS], *mode == 'r');
PerlLIO_close(p[THIS]);
+ if (p[THAT] != (*mode == 'r')) /* if dup2() didn't close it */
+ PerlLIO_close(p[THAT]);
}
+ else
+ PerlLIO_close(p[THAT]);
#ifndef OS2
if (doexec) {
#if !defined(HAS_FCNTL) || !defined(F_SETFD)
#define NOFILE 20
#endif
{
- int fd;
+ int fd;
for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++)
if (fd != pp[1])
- PerlLIO_close(fd);
+ PerlLIO_close(fd);
}
#endif
/* may or may not use the shell */
#endif /* defined OS2 */
/*SUPPRESS 560*/
if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) {
- SvREADONLY_off(GvSV(tmpgv));
+ SvREADONLY_off(GvSV(tmpgv));
sv_setiv(GvSV(tmpgv), PerlProc_getpid());
- SvREADONLY_on(GvSV(tmpgv));
- }
+ SvREADONLY_on(GvSV(tmpgv));
+ }
+#ifdef THREADS_HAVE_PIDS
+ PL_ppid = (IV)getppid();
+#endif
PL_forkprocess = 0;
hv_clear(PL_pidstatus); /* we have no children */
return Nullfp;
#undef THIS
#undef THAT
}
- do_execfree(); /* free any memory malloced by child on fork */
- PerlLIO_close(p[that]);
+ do_execfree(); /* free any memory malloced by child on vfork */
if (did_pipes)
PerlLIO_close(pp[1]);
if (p[that] < p[This]) {
PerlLIO_close(p[This]);
p[This] = p[that];
}
+ else
+ PerlLIO_close(p[that]);
+
LOCK_FDPID_MUTEX;
sv = *av_fetch(PL_fdpid,p[This],TRUE);
UNLOCK_FDPID_MUTEX;
return PerlIO_fdopen(p[This], mode);
}
#else
-#if defined(atarist)
+#if defined(atarist) || defined(EPOC)
FILE *popen();
PerlIO *
Perl_my_popen(pTHX_ char *cmd, char *mode)
Perl_dump_fds(pTHX_ char *s)
{
int fd;
- struct stat tmpstatbuf;
+ Stat_t tmpstatbuf;
PerlIO_printf(Perl_debug_log,"%s", s);
for (fd = 0; fd < 32; fd++) {
{
struct sigaction act, oact;
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
act.sa_handler = handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
struct sigaction oact;
if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1)
- return SIG_ERR;
+ return SIG_ERR;
else
- return oact.sa_handler;
+ return oact.sa_handler;
}
int
{
struct sigaction act;
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
+
act.sa_handler = handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
int
Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
+#ifdef USE_ITHREADS
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
+
return sigaction(signo, save, (struct sigaction *)NULL);
}
Sighandler_t
Perl_rsignal(pTHX_ int signo, Sighandler_t handler)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
return PerlProc_signal(signo, handler);
}
{
Sighandler_t oldsig;
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return SIG_ERR;
+#endif
+
sig_trapped = 0;
oldsig = PerlProc_signal(signo, sig_trap);
PerlProc_signal(signo, oldsig);
if (sig_trapped)
- PerlProc_kill(PerlProc_getpid(), signo);
+ PerlProc_kill(PerlProc_getpid(), signo);
return oldsig;
}
int
Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
*save = PerlProc_signal(signo, handler);
return (*save == SIG_ERR) ? -1 : 0;
}
int
Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
{
+#if defined(USE_ITHREADS) && !defined(WIN32)
+ /* only "parent" interpreter can diddle signals */
+ if (PL_curinterp != aTHX)
+ return -1;
+#endif
return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0;
}
return -1;
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
{
- SV *sv;
- SV** svp;
- char spid[TYPE_CHARS(int)];
+ SV *sv;
+ SV** svp;
+ char spid[TYPE_CHARS(int)];
- if (pid > 0) {
- sprintf(spid, "%"IVdf, (IV)pid);
- svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE);
- if (svp && *svp != &PL_sv_undef) {
- *statusp = SvIVX(*svp);
- (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
- return pid;
- }
- }
- else {
- HE *entry;
-
- hv_iterinit(PL_pidstatus);
- if ((entry = hv_iternext(PL_pidstatus))) {
- pid = atoi(hv_iterkey(entry,(I32*)statusp));
- sv = hv_iterval(PL_pidstatus,entry);
- *statusp = SvIVX(sv);
+ if (pid > 0) {
sprintf(spid, "%"IVdf, (IV)pid);
- (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
- return pid;
+ svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE);
+ if (svp && *svp != &PL_sv_undef) {
+ *statusp = SvIVX(*svp);
+ (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
+ return pid;
+ }
+ }
+ else {
+ HE *entry;
+
+ hv_iterinit(PL_pidstatus);
+ if ((entry = hv_iternext(PL_pidstatus))) {
+ SV *sv;
+ char spid[TYPE_CHARS(int)];
+
+ pid = atoi(hv_iterkey(entry,(I32*)statusp));
+ sv = hv_iterval(PL_pidstatus,entry);
+ *statusp = SvIVX(sv);
+ sprintf(spid, "%"IVdf, (IV)pid);
+ (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD);
+ return pid;
+ }
}
- }
}
#endif
#ifdef HAS_WAITPID
goto hard_way;
# endif
result = PerlProc_waitpid(pid,statusp,flags);
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && defined(HAS_WAIT4)
result = wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *));
+ goto finish;
#endif
#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
hard_way:
}
}
#endif
+ finish:
if (result < 0 && errno == EINTR) {
PERL_ASYNC_CHECK();
}
return;
}
-#if defined(atarist) || defined(OS2)
+#if defined(atarist) || defined(OS2) || defined(EPOC)
int pclose();
#ifdef HAS_FORK
int /* Cannot prototype with I32
{
char *fa = strrchr(a,'/');
char *fb = strrchr(b,'/');
- struct stat tmpstatbuf1;
- struct stat tmpstatbuf2;
+ Stat_t tmpstatbuf1;
+ Stat_t tmpstatbuf2;
SV *tmpsv = sv_newmortal();
if (fa)
#endif
{
bool seen_dot = 0;
-
+
PL_bufend = s + strlen(s);
while (s < PL_bufend) {
#ifdef MACOS_TRADITIONAL
#endif
)
{
- xfound = tmpbuf; /* bingo! */
+ xfound = tmpbuf; /* bingo! */
break;
}
if (!xfailed)
seen_dot = 1; /* Disable message. */
if (!xfound) {
if (flags & 1) { /* do or die? */
- Perl_croak(aTHX_ "Can't %s %s%s%s",
+ Perl_croak(aTHX_ "Can't %s %s%s%s",
(xfailed ? "execute" : "find"),
(xfailed ? xfailed : scriptname),
(xfailed ? "" : " on PATH"),
SvCUR_set(sv, sizeof(struct perl_thread));
thr = (Thread) SvPVX(sv);
#ifdef DEBUGGING
- memset(thr, 0xab, sizeof(struct perl_thread));
+ Poison(thr, 1, struct perl_thread);
PL_markstack = 0;
PL_scopestack = 0;
PL_savestack = 0;
PL_curstash = t->Tcurstash; /* always be set to main? */
PL_tainted = t->Ttainted;
- PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */
+ PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */
PL_rs = newSVsv(t->Trs);
PL_last_in_gv = Nullgv;
PL_ofs_sv = t->Tofs_sv ? SvREFCNT_inc(PL_ofs_sv) : Nullsv;
return PerlIO_flush(NULL);
#else
# if defined(HAS__FWALK)
+ extern int fflush(FILE *);
/* undocumented, unprototyped, but very useful BSDism */
extern void _fwalk(int (*)(FILE *));
_fwalk(&fflush);
return 0;
}
# endif
- SETERRNO(EBADF,RMS$_IFI);
+ SETERRNO(EBADF,RMS_IFI);
return EOF;
# endif
#endif
void
Perl_report_evil_fh(pTHX_ GV *gv, IO *io, I32 op)
{
- char *vile;
- I32 warn_type;
char *func =
op == OP_READLINE ? "readline" : /* "<HANDLE>" not nice */
op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */
PL_op_desc[op];
char *pars = OP_IS_FILETEST(op) ? "" : "()";
- char *type = OP_IS_SOCKET(op) ||
- (gv && io && IoTYPE(io) == IoTYPE_SOCKET) ?
- "socket" : "filehandle";
+ char *type = OP_IS_SOCKET(op)
+ || (gv && io && IoTYPE(io) == IoTYPE_SOCKET)
+ ? "socket" : "filehandle";
char *name = NULL;
- if (gv && io && IoTYPE(io) == IoTYPE_CLOSED) {
- vile = "closed";
- warn_type = WARN_CLOSED;
- }
- else {
- vile = "unopened";
- warn_type = WARN_UNOPENED;
- }
-
if (gv && isGV(gv)) {
- SV *sv = sv_newmortal();
- gv_efullname4(sv, gv, Nullch, FALSE);
- name = SvPVX(sv);
+ name = GvENAME(gv);
}
if (op == OP_phoney_OUTPUT_ONLY || op == OP_phoney_INPUT_ONLY) {
- if (name && *name)
- Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for %sput",
- name,
- (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
- else
- Perl_warner(aTHX_ WARN_IO, "Filehandle opened only for %sput",
- (op == OP_phoney_INPUT_ONLY ? "in" : "out"));
- } else if (name && *name) {
- Perl_warner(aTHX_ warn_type,
- "%s%s on %s %s %s", func, pars, vile, type, name);
- if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
- Perl_warner(aTHX_ warn_type,
- "\t(Are you trying to call %s%s on dirhandle %s?)\n",
- func, pars, name);
+ if (ckWARN(WARN_IO)) {
+ const char *direction = (op == OP_phoney_INPUT_ONLY) ? "in" : "out";
+ if (name && *name)
+ Perl_warner(aTHX_ packWARN(WARN_IO),
+ "Filehandle %s opened only for %sput",
+ name, direction);
+ else
+ Perl_warner(aTHX_ packWARN(WARN_IO),
+ "Filehandle opened only for %sput", direction);
+ }
}
else {
- Perl_warner(aTHX_ warn_type,
- "%s%s on %s %s", func, pars, vile, type);
- if (gv && io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
- Perl_warner(aTHX_ warn_type,
+ char *vile;
+ I32 warn_type;
+
+ if (gv && io && IoTYPE(io) == IoTYPE_CLOSED) {
+ vile = "closed";
+ warn_type = WARN_CLOSED;
+ }
+ else {
+ vile = "unopened";
+ warn_type = WARN_UNOPENED;
+ }
+
+ if (ckWARN(warn_type)) {
+ if (name && *name) {
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "%s%s on %s %s %s", func, pars, vile, type, name);
+ if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
+ Perl_warner(
+ aTHX_ packWARN(warn_type),
+ "\t(Are you trying to call %s%s on dirhandle %s?)\n",
+ func, pars, name
+ );
+ }
+ else {
+ Perl_warner(aTHX_ packWARN(warn_type),
+ "%s%s on %s %s", func, pars, vile, type);
+ if (gv && io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP))
+ Perl_warner(
+ aTHX_ packWARN(warn_type),
"\t(Are you trying to call %s%s on dirhandle?)\n",
- func, pars);
+ func, pars
+ );
+ }
+ }
}
}
int
Perl_ebcdic_control(pTHX_ int ch)
{
- if (ch > 'a') {
- char *ctlp;
-
- if (islower(ch))
- ch = toupper(ch);
-
- if ((ctlp = strchr(controllablechars, ch)) == 0) {
- Perl_die(aTHX_ "unrecognised control character '%c'\n", ch);
- }
-
- if (ctlp == controllablechars)
- return('\177'); /* DEL */
- else
- return((unsigned char)(ctlp - controllablechars - 1));
- } else { /* Want uncontrol */
- if (ch == '\177' || ch == -1)
- return('?');
- else if (ch == '\157')
- return('\177');
- else if (ch == '\174')
- return('\000');
- else if (ch == '^') /* '\137' in 1047, '\260' in 819 */
- return('\036');
- else if (ch == '\155')
- return('\037');
- else if (0 < ch && ch < (sizeof(controllablechars) - 1))
- return(controllablechars[ch+1]);
- else
- Perl_die(aTHX_ "invalid control request: '\\%03o'\n", ch & 0xFF);
- }
-}
-#endif
-
-/* XXX struct tm on some systems (SunOS4/BSD) contains extra (non POSIX)
- * fields for which we don't have Configure support yet:
- * char *tm_zone; -- abbreviation of timezone name
- * long tm_gmtoff; -- offset from GMT in seconds
- * To workaround core dumps from the uninitialised tm_zone we get the
+ if (ch > 'a') {
+ char *ctlp;
+
+ if (islower(ch))
+ ch = toupper(ch);
+
+ if ((ctlp = strchr(controllablechars, ch)) == 0) {
+ Perl_die(aTHX_ "unrecognised control character '%c'\n", ch);
+ }
+
+ if (ctlp == controllablechars)
+ return('\177'); /* DEL */
+ else
+ return((unsigned char)(ctlp - controllablechars - 1));
+ } else { /* Want uncontrol */
+ if (ch == '\177' || ch == -1)
+ return('?');
+ else if (ch == '\157')
+ return('\177');
+ else if (ch == '\174')
+ return('\000');
+ else if (ch == '^') /* '\137' in 1047, '\260' in 819 */
+ return('\036');
+ else if (ch == '\155')
+ return('\037');
+ else if (0 < ch && ch < (sizeof(controllablechars) - 1))
+ return(controllablechars[ch+1]);
+ else
+ Perl_die(aTHX_ "invalid control request: '\\%03o'\n", ch & 0xFF);
+ }
+}
+#endif
+
+/* To workaround core dumps from the uninitialised tm_zone we get the
* system to give us a reasonable struct to copy. This fix means that
* strftime uses the tm_zone and tm_gmtoff values returned by
* localtime(time()). That should give the desired result most of the
* time. But probably not always!
*
- * This is a temporary workaround to be removed once Configure
- * support is added and NETaa14816 is considered in full.
- * It does not address tzname aspects of NETaa14816.
+ * This does not address tzname aspects of NETaa14816.
+ *
*/
+
#ifdef HAS_GNULIBC
# ifndef STRUCT_TM_HASZONE
# define STRUCT_TM_HASZONE
# endif
#endif
+#ifdef STRUCT_TM_HASZONE /* Backward compat */
+# ifndef HAS_TM_TM_ZONE
+# define HAS_TM_TM_ZONE
+# endif
+#endif
+
void
Perl_init_tm(pTHX_ struct tm *ptm) /* see mktime, strftime and asctime */
{
-#ifdef STRUCT_TM_HASZONE
+#ifdef HAS_TM_TM_ZONE
Time_t now;
(void)time(&now);
Copy(localtime(&now), ptm, 1, struct tm);
#define SV_CWD_ISDOT(dp) \
(dp->d_name[0] == '.' && (dp->d_name[1] == '\0' || \
- (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
+ (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
/*
+=head1 Miscellaneous Functions
+
=for apidoc getcwd_sv
Fill the sv with current working directory
{
char buf[MAXPATHLEN];
- /* Some getcwd()s automatically allocate a buffer of the given
+ /* Some getcwd()s automatically allocate a buffer of the given
* size from the heap if they are given a NULL buffer pointer.
* The problem is that this behaviour is not portable. */
- if (getcwd(buf, sizeof(buf) - 1)) {
- STRLEN len = strlen(buf);
- sv_setpvn(sv, buf, len);
- return TRUE;
- }
- else {
- sv_setsv(sv, &PL_sv_undef);
- return FALSE;
- }
+ if (getcwd(buf, sizeof(buf) - 1)) {
+ STRLEN len = strlen(buf);
+ sv_setpvn(sv, buf, len);
+ return TRUE;
+ }
+ else {
+ sv_setsv(sv, &PL_sv_undef);
+ return FALSE;
+ }
}
#else
- struct stat statbuf;
+ Stat_t statbuf;
int orig_cdev, orig_cino, cdev, cino, odev, oino, tdev, tino;
int namelen, pathlen=0;
DIR *dir;
(void)SvUPGRADE(sv, SVt_PV);
if (PerlLIO_lstat(".", &statbuf) < 0) {
- SV_CWD_RETURN_UNDEF;
+ SV_CWD_RETURN_UNDEF;
}
orig_cdev = statbuf.st_dev;
cino = orig_cino;
for (;;) {
- odev = cdev;
- oino = cino;
-
- if (PerlDir_chdir("..") < 0) {
- SV_CWD_RETURN_UNDEF;
- }
- if (PerlLIO_stat(".", &statbuf) < 0) {
- SV_CWD_RETURN_UNDEF;
- }
-
- cdev = statbuf.st_dev;
- cino = statbuf.st_ino;
-
- if (odev == cdev && oino == cino) {
- break;
- }
- if (!(dir = PerlDir_open("."))) {
- SV_CWD_RETURN_UNDEF;
- }
-
- while ((dp = PerlDir_read(dir)) != NULL) {
+ odev = cdev;
+ oino = cino;
+
+ if (PerlDir_chdir("..") < 0) {
+ SV_CWD_RETURN_UNDEF;
+ }
+ if (PerlLIO_stat(".", &statbuf) < 0) {
+ SV_CWD_RETURN_UNDEF;
+ }
+
+ cdev = statbuf.st_dev;
+ cino = statbuf.st_ino;
+
+ if (odev == cdev && oino == cino) {
+ break;
+ }
+ if (!(dir = PerlDir_open("."))) {
+ SV_CWD_RETURN_UNDEF;
+ }
+
+ while ((dp = PerlDir_read(dir)) != NULL) {
#ifdef DIRNAMLEN
- namelen = dp->d_namlen;
+ namelen = dp->d_namlen;
#else
- namelen = strlen(dp->d_name);
+ namelen = strlen(dp->d_name);
#endif
- /* skip . and .. */
- if (SV_CWD_ISDOT(dp)) {
- continue;
- }
+ /* skip . and .. */
+ if (SV_CWD_ISDOT(dp)) {
+ continue;
+ }
- if (PerlLIO_lstat(dp->d_name, &statbuf) < 0) {
- SV_CWD_RETURN_UNDEF;
- }
+ if (PerlLIO_lstat(dp->d_name, &statbuf) < 0) {
+ SV_CWD_RETURN_UNDEF;
+ }
- tdev = statbuf.st_dev;
- tino = statbuf.st_ino;
- if (tino == oino && tdev == odev) {
- break;
- }
- }
+ tdev = statbuf.st_dev;
+ tino = statbuf.st_ino;
+ if (tino == oino && tdev == odev) {
+ break;
+ }
+ }
- if (!dp) {
- SV_CWD_RETURN_UNDEF;
- }
+ if (!dp) {
+ SV_CWD_RETURN_UNDEF;
+ }
- if (pathlen + namelen + 1 >= MAXPATHLEN) {
- SV_CWD_RETURN_UNDEF;
+ if (pathlen + namelen + 1 >= MAXPATHLEN) {
+ SV_CWD_RETURN_UNDEF;
}
- SvGROW(sv, pathlen + namelen + 1);
+ SvGROW(sv, pathlen + namelen + 1);
- if (pathlen) {
- /* shift down */
- Move(SvPVX(sv), SvPVX(sv) + namelen + 1, pathlen, char);
- }
+ if (pathlen) {
+ /* shift down */
+ Move(SvPVX(sv), SvPVX(sv) + namelen + 1, pathlen, char);
+ }
- /* prepend current directory to the front */
- *SvPVX(sv) = '/';
- Move(dp->d_name, SvPVX(sv)+1, namelen, char);
- pathlen += (namelen + 1);
+ /* prepend current directory to the front */
+ *SvPVX(sv) = '/';
+ Move(dp->d_name, SvPVX(sv)+1, namelen, char);
+ pathlen += (namelen + 1);
#ifdef VOID_CLOSEDIR
- PerlDir_close(dir);
+ PerlDir_close(dir);
#else
- if (PerlDir_close(dir) < 0) {
- SV_CWD_RETURN_UNDEF;
- }
+ if (PerlDir_close(dir) < 0) {
+ SV_CWD_RETURN_UNDEF;
+ }
#endif
}
if (pathlen) {
- SvCUR_set(sv, pathlen);
- *SvEND(sv) = '\0';
- SvPOK_only(sv);
+ SvCUR_set(sv, pathlen);
+ *SvEND(sv) = '\0';
+ SvPOK_only(sv);
if (PerlDir_chdir(SvPVX(sv)) < 0) {
- SV_CWD_RETURN_UNDEF;
- }
+ SV_CWD_RETURN_UNDEF;
+ }
}
if (PerlLIO_stat(".", &statbuf) < 0) {
- SV_CWD_RETURN_UNDEF;
+ SV_CWD_RETURN_UNDEF;
}
cdev = statbuf.st_dev;
cino = statbuf.st_ino;
if (cdev != orig_cdev || cino != orig_cino) {
- Perl_croak(aTHX_ "Unstable directory path, "
- "current directory changed unexpectedly");
+ Perl_croak(aTHX_ "Unstable directory path, "
+ "current directory changed unexpectedly");
}
-#endif
return TRUE;
+#endif
+
#else
return FALSE;
#endif
}
/*
-=for apidoc new_vstring
+=head1 SV Manipulation Functions
+
+=for apidoc scan_vstring
Returns a pointer to the next character after the parsed
vstring, as well as updating the passed in sv.
- *
+
Function must be called like
-
- sv = NEWSV(92,5);
- s = new_vstring(s,sv);
-The sv must already be large enough to store the vstring
-passed in.
+ sv = NEWSV(92,5);
+ s = scan_vstring(s,sv);
+
+The sv should already be large enough to store the vstring
+passed in, for performance reasons.
=cut
*/
char *
-Perl_new_vstring(pTHX_ char *s, SV *sv)
+Perl_scan_vstring(pTHX_ char *s, SV *sv)
{
char *pos = s;
+ char *start = s;
if (*pos == 'v') pos++; /* get past 'v' */
while (isDIGIT(*pos) || *pos == '_')
pos++;
for (;;) {
rev = 0;
{
- /* this is atoi() that tolerates underscores */
- char *end = pos;
- UV mult = 1;
- if ( *(s-1) == '_') {
- mult = 10;
- }
- while (--end >= s) {
- UV orev;
- orev = rev;
- rev += (*end - '0') * mult;
- mult *= 10;
- if (orev > rev && ckWARN_d(WARN_OVERFLOW))
- Perl_warner(aTHX_ WARN_OVERFLOW,
- "Integer overflow in decimal number");
- }
+ /* this is atoi() that tolerates underscores */
+ char *end = pos;
+ UV mult = 1;
+ while (--end >= s) {
+ UV orev;
+ if (*end == '_')
+ continue;
+ orev = rev;
+ rev += (*end - '0') * mult;
+ mult *= 10;
+ if (orev > rev && ckWARN_d(WARN_OVERFLOW))
+ Perl_warner(aTHX_ packWARN(WARN_OVERFLOW),
+ "Integer overflow in decimal number");
+ }
}
+#ifdef EBCDIC
+ if (rev > 0x7FFFFFFF)
+ Perl_croak(aTHX "In EBCDIC the v-string components cannot exceed 2147483647");
+#endif
/* Append native character for the rev point */
tmpend = uvchr_to_utf8(tmpbuf, rev);
sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf);
if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev)))
- SvUTF8_on(sv);
- if ( (*pos == '.' || *pos == '_') && isDIGIT(pos[1]))
- s = ++pos;
+ SvUTF8_on(sv);
+ if (*pos == '.' && isDIGIT(pos[1]))
+ s = ++pos;
else {
- s = pos;
- break;
+ s = pos;
+ break;
}
- while (isDIGIT(*pos) )
- pos++;
+ while (isDIGIT(*pos) || *pos == '_')
+ pos++;
}
SvPOK_on(sv);
- SvREADONLY_on(sv);
+ sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start);
+ SvRMAGICAL_on(sv);
+ }
+ return s;
+}
+
+/*
+=for apidoc scan_version
+
+Returns a pointer to the next character after the parsed
+version string, as well as upgrading the passed in SV to
+an RV.
+
+Function must be called with an already existing SV like
+
+ sv = NEWSV(92,0);
+ s = scan_version(s,sv);
+
+Performs some preprocessing to the string to ensure that
+it has the correct characteristics of a version. Flags the
+object if it contains an underscore (which denotes this
+is a beta version).
+
+=cut
+*/
+
+char *
+Perl_scan_version(pTHX_ char *s, SV *rv)
+{
+ char *pos = s;
+ I32 saw_period = 0;
+ bool saw_under = 0;
+ SV* sv = newSVrv(rv, "version"); /* create an SV and upgrade the RV */
+ (void)sv_upgrade(sv, SVt_PVAV); /* needs to be an AV type */
+
+ /* pre-scan the imput string to check for decimals */
+ while ( *pos == '.' || *pos == '_' || isDIGIT(*pos) )
+ {
+ if ( *pos == '.' )
+ {
+ if ( saw_under )
+ Perl_croak(aTHX_ "Invalid version format (underscores before decimal)");
+ saw_period++ ;
+ }
+ else if ( *pos == '_' )
+ {
+ if ( saw_under )
+ Perl_croak(aTHX_ "Invalid version format (multiple underscores)");
+ saw_under = 1;
+ }
+ pos++;
+ }
+ pos = s;
+
+ if (*pos == 'v') pos++; /* get past 'v' */
+ while (isDIGIT(*pos))
+ pos++;
+ if (!isALPHA(*pos)) {
+ I32 rev;
+
+ if (*s == 'v') s++; /* get past 'v' */
+
+ for (;;) {
+ rev = 0;
+ {
+ /* this is atoi() that delimits on underscores */
+ char *end = pos;
+ I32 mult = 1;
+ if ( s < pos && *(s-1) == '_' ) {
+ if ( *s == '0' && *(s+1) != '0')
+ mult = 10; /* perl-style */
+ else
+ mult = -1; /* beta version */
+ }
+ while (--end >= s) {
+
+ I32 orev;
+ orev = rev;
+ rev += (*end - '0') * mult;
+ mult *= 10;
+ if ( abs(orev) > abs(rev) )
+ Perl_croak(aTHX_ "Integer overflow in version");
+ }
+ }
+
+ /* Append revision */
+ av_push((AV *)sv, newSViv(rev));
+ if ( (*pos == '.' || *pos == '_') && isDIGIT(pos[1]))
+ s = ++pos;
+ else if ( isDIGIT(*pos) )
+ s = pos;
+ else {
+ s = pos;
+ break;
+ }
+ while ( isDIGIT(*pos) ) {
+ if ( saw_period == 1 && pos-s == 3 )
+ break;
+ pos++;
+ }
+ }
}
return s;
}
+/*
+=for apidoc new_version
+
+Returns a new version object based on the passed in SV:
+
+ SV *sv = new_version(SV *ver);
+
+Does not alter the passed in ver SV. See "upg_version" if you
+want to upgrade the SV.
+
+=cut
+*/
+
+SV *
+Perl_new_version(pTHX_ SV *ver)
+{
+ SV *rv = NEWSV(92,5);
+ char *version = (char *)SvPV(ver,PL_na);
+
+#ifdef SvVOK
+ if ( SvVOK(ver) ) { /* already a v-string */
+ MAGIC* mg = mg_find(ver,PERL_MAGIC_vstring);
+ version = savepvn( (const char*)mg->mg_ptr,mg->mg_len );
+ }
+#endif
+ version = scan_version(version,rv);
+ return rv;
+}
+
+/*
+=for apidoc upg_version
+
+In-place upgrade of the supplied SV to a version object.
+
+ SV *sv = upg_version(SV *sv);
+
+Returns a pointer to the upgraded SV.
+
+=cut
+*/
+
+SV *
+Perl_upg_version(pTHX_ SV *ver)
+{
+ char *version = savepvn(SvPVX(ver),SvCUR(ver));
+#ifdef SvVOK
+ if ( SvVOK(ver) ) { /* already a v-string */
+ MAGIC* mg = mg_find(ver,PERL_MAGIC_vstring);
+ version = savepvn( (const char*)mg->mg_ptr,mg->mg_len );
+ }
+#endif
+ version = scan_version(version,ver);
+ return ver;
+}
+
+
+/*
+=for apidoc vnumify
+
+Accepts a version object and returns the normalized floating
+point representation. Call like:
+
+ sv = vnumify(rv);
+
+NOTE: you can pass either the object directly or the SV
+contained within the RV.
+
+=cut
+*/
+
+SV *
+Perl_vnumify(pTHX_ SV *vs)
+{
+ I32 i, len, digit;
+ SV *sv = NEWSV(92,0);
+ if ( SvROK(vs) )
+ vs = SvRV(vs);
+ len = av_len((AV *)vs);
+ digit = SvIVX(*av_fetch((AV *)vs, 0, 0));
+ Perl_sv_setpvf(aTHX_ sv,"%d.",abs(digit));
+ for ( i = 1 ; i <= len ; i++ )
+ {
+ digit = SvIVX(*av_fetch((AV *)vs, i, 0));
+ Perl_sv_catpvf(aTHX_ sv,"%03d",abs(digit));
+ }
+ if ( len == 0 )
+ Perl_sv_catpv(aTHX_ sv,"000");
+ return sv;
+}
+
+/*
+=for apidoc vstringify
+
+Accepts a version object and returns the normalized string
+representation. Call like:
+
+ sv = vstringify(rv);
+
+NOTE: you can pass either the object directly or the SV
+contained within the RV.
+
+=cut
+*/
+
+SV *
+Perl_vstringify(pTHX_ SV *vs)
+{
+ I32 i, len, digit;
+ SV *sv = NEWSV(92,0);
+ if ( SvROK(vs) )
+ vs = SvRV(vs);
+ len = av_len((AV *)vs);
+ digit = SvIVX(*av_fetch((AV *)vs, 0, 0));
+ Perl_sv_setpvf(aTHX_ sv,"%d",digit);
+ for ( i = 1 ; i <= len ; i++ )
+{
+ digit = SvIVX(*av_fetch((AV *)vs, i, 0));
+ if ( digit < 0 )
+ Perl_sv_catpvf(aTHX_ sv,"_%d",-digit);
+ else
+ Perl_sv_catpvf(aTHX_ sv,".%d",digit);
+ }
+ if ( len == 0 )
+ Perl_sv_catpv(aTHX_ sv,".0");
+ return sv;
+}
+
+/*
+=for apidoc vcmp
+
+Version object aware cmp. Both operands must already have been
+converted into version objects.
+
+=cut
+*/
+
+int
+Perl_vcmp(pTHX_ SV *lsv, SV *rsv)
+{
+ I32 i,l,m,r,retval;
+ if ( SvROK(lsv) )
+ lsv = SvRV(lsv);
+ if ( SvROK(rsv) )
+ rsv = SvRV(rsv);
+ l = av_len((AV *)lsv);
+ r = av_len((AV *)rsv);
+ m = l < r ? l : r;
+ retval = 0;
+ i = 0;
+ while ( i <= m && retval == 0 )
+ {
+ I32 left = SvIV(*av_fetch((AV *)lsv,i,0));
+ I32 right = SvIV(*av_fetch((AV *)rsv,i,0));
+ bool lbeta = left < 0 ? 1 : 0;
+ bool rbeta = right < 0 ? 1 : 0;
+ left = abs(left);
+ right = abs(right);
+ if ( left < right || (left == right && lbeta && !rbeta) )
+ retval = -1;
+ if ( left > right || (left == right && rbeta && !lbeta) )
+ retval = +1;
+ i++;
+ }
+
+ if ( l != r && retval == 0 )
+ retval = l < r ? -1 : +1;
+ return retval;
+}
+
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET) && defined(SOCK_DGRAM) && defined(HAS_SELECT)
+# define EMULATE_SOCKETPAIR_UDP
+#endif
+
+#ifdef EMULATE_SOCKETPAIR_UDP
+static int
+S_socketpair_udp (int fd[2]) {
+ dTHX;
+ /* Fake a datagram socketpair using UDP to localhost. */
+ int sockets[2] = {-1, -1};
+ struct sockaddr_in addresses[2];
+ int i;
+ Sock_size_t size = sizeof(struct sockaddr_in);
+ unsigned short port;
+ int got;
+
+ memset(&addresses, 0, sizeof(addresses));
+ i = 1;
+ do {
+ sockets[i] = PerlSock_socket(AF_INET, SOCK_DGRAM, PF_INET);
+ if (sockets[i] == -1)
+ goto tidy_up_and_fail;
+
+ addresses[i].sin_family = AF_INET;
+ addresses[i].sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ addresses[i].sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind(sockets[i], (struct sockaddr *) &addresses[i],
+ sizeof(struct sockaddr_in)) == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now have 2 UDP sockets. Find out which port each is connected to, and
+ for each connect the other socket to it. */
+ i = 1;
+ do {
+ if (PerlSock_getsockname(sockets[i], (struct sockaddr *) &addresses[i],
+ &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof(struct sockaddr_in))
+ goto abort_tidy_up_and_fail;
+ /* !1 is 0, !0 is 1 */
+ if (PerlSock_connect(sockets[!i], (struct sockaddr *) &addresses[i],
+ sizeof(struct sockaddr_in)) == -1)
+ goto tidy_up_and_fail;
+ } while (i--);
+
+ /* Now we have 2 sockets connected to each other. I don't trust some other
+ process not to have already sent a packet to us (by random) so send
+ a packet from each to the other. */
+ i = 1;
+ do {
+ /* I'm going to send my own port number. As a short.
+ (Who knows if someone somewhere has sin_port as a bitfield and needs
+ this routine. (I'm assuming crays have socketpair)) */
+ port = addresses[i].sin_port;
+ got = PerlLIO_write(sockets[i], &port, sizeof(port));
+ if (got != sizeof(port)) {
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ } while (i--);
+
+ /* Packets sent. I don't trust them to have arrived though.
+ (As I understand it Solaris TCP stack is multithreaded. Non-blocking
+ connect to localhost will use a second kernel thread. In 2.6 the
+ first thread running the connect() returns before the second completes,
+ so EINPROGRESS> In 2.7 the improved stack is faster and connect()
+ returns 0. Poor programs have tripped up. One poor program's authors'
+ had a 50-1 reverse stock split. Not sure how connected these were.)
+ So I don't trust someone not to have an unpredictable UDP stack.
+ */
+
+ {
+ struct timeval waitfor = {0, 100000}; /* You have 0.1 seconds */
+ int max = sockets[1] > sockets[0] ? sockets[1] : sockets[0];
+ fd_set rset;
+
+ FD_ZERO(&rset);
+ FD_SET(sockets[0], &rset);
+ FD_SET(sockets[1], &rset);
+
+ got = PerlSock_select(max + 1, &rset, NULL, NULL, &waitfor);
+ if (got != 2 || !FD_ISSET(sockets[0], &rset)
+ || !FD_ISSET(sockets[1], &rset)) {
+ /* I hope this is portable and appropriate. */
+ if (got == -1)
+ goto tidy_up_and_fail;
+ goto abort_tidy_up_and_fail;
+ }
+ }
+
+ /* And the paranoia department even now doesn't trust it to have arrive
+ (hence MSG_DONTWAIT). Or that what arrives was sent by us. */
+ {
+ struct sockaddr_in readfrom;
+ unsigned short buffer[2];
+
+ i = 1;
+ do {
+#ifdef MSG_DONTWAIT
+ got = PerlSock_recvfrom(sockets[i], (char *) &buffer,
+ sizeof(buffer), MSG_DONTWAIT,
+ (struct sockaddr *) &readfrom, &size);
+#else
+ got = PerlSock_recvfrom(sockets[i], (char *) &buffer,
+ sizeof(buffer), 0,
+ (struct sockaddr *) &readfrom, &size);
+#endif
+
+ if (got == -1)
+ goto tidy_up_and_fail;
+ if (got != sizeof(port)
+ || size != sizeof(struct sockaddr_in)
+ /* Check other socket sent us its port. */
+ || buffer[0] != (unsigned short) addresses[!i].sin_port
+ /* Check kernel says we got the datagram from that socket */
+ || readfrom.sin_family != addresses[!i].sin_family
+ || readfrom.sin_addr.s_addr != addresses[!i].sin_addr.s_addr
+ || readfrom.sin_port != addresses[!i].sin_port)
+ goto abort_tidy_up_and_fail;
+ } while (i--);
+ }
+ /* My caller (my_socketpair) has validated that this is non-NULL */
+ fd[0] = sockets[0];
+ fd[1] = sockets[1];
+ /* I hereby declare this connection open. May God bless all who cross
+ her. */
+ return 0;
+
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED;
+ tidy_up_and_fail:
+ {
+ int save_errno = errno;
+ if (sockets[0] != -1)
+ PerlLIO_close(sockets[0]);
+ if (sockets[1] != -1)
+ PerlLIO_close(sockets[1]);
+ errno = save_errno;
+ return -1;
+ }
+}
+#endif /* EMULATE_SOCKETPAIR_UDP */
+
+#if !defined(HAS_SOCKETPAIR) && defined(HAS_SOCKET) && defined(AF_INET) && defined(PF_INET)
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+ /* Stevens says that family must be AF_LOCAL, protocol 0.
+ I'm going to enforce that, then ignore it, and use TCP (or UDP). */
+ dTHX;
+ int listener = -1;
+ int connector = -1;
+ int acceptor = -1;
+ struct sockaddr_in listen_addr;
+ struct sockaddr_in connect_addr;
+ Sock_size_t size;
+
+ if (protocol
+#ifdef AF_UNIX
+ || family != AF_UNIX
+#endif
+ ) {
+ errno = EAFNOSUPPORT;
+ return -1;
+ }
+ if (!fd) {
+ errno = EINVAL;
+ return -1;
+ }
+
+#ifdef EMULATE_SOCKETPAIR_UDP
+ if (type == SOCK_DGRAM)
+ return S_socketpair_udp(fd);
+#endif
+
+ listener = PerlSock_socket(AF_INET, type, 0);
+ if (listener == -1)
+ return -1;
+ memset(&listen_addr, 0, sizeof(listen_addr));
+ listen_addr.sin_family = AF_INET;
+ listen_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ listen_addr.sin_port = 0; /* kernel choses port. */
+ if (PerlSock_bind(listener, (struct sockaddr *) &listen_addr,
+ sizeof(listen_addr)) == -1)
+ goto tidy_up_and_fail;
+ if (PerlSock_listen(listener, 1) == -1)
+ goto tidy_up_and_fail;
+
+ connector = PerlSock_socket(AF_INET, type, 0);
+ if (connector == -1)
+ goto tidy_up_and_fail;
+ /* We want to find out the port number to connect to. */
+ size = sizeof(connect_addr);
+ if (PerlSock_getsockname(listener, (struct sockaddr *) &connect_addr,
+ &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof(connect_addr))
+ goto abort_tidy_up_and_fail;
+ if (PerlSock_connect(connector, (struct sockaddr *) &connect_addr,
+ sizeof(connect_addr)) == -1)
+ goto tidy_up_and_fail;
+
+ size = sizeof(listen_addr);
+ acceptor = PerlSock_accept(listener, (struct sockaddr *) &listen_addr,
+ &size);
+ if (acceptor == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof(listen_addr))
+ goto abort_tidy_up_and_fail;
+ PerlLIO_close(listener);
+ /* Now check we are talking to ourself by matching port and host on the
+ two sockets. */
+ if (PerlSock_getsockname(connector, (struct sockaddr *) &connect_addr,
+ &size) == -1)
+ goto tidy_up_and_fail;
+ if (size != sizeof(connect_addr)
+ || listen_addr.sin_family != connect_addr.sin_family
+ || listen_addr.sin_addr.s_addr != connect_addr.sin_addr.s_addr
+ || listen_addr.sin_port != connect_addr.sin_port) {
+ goto abort_tidy_up_and_fail;
+ }
+ fd[0] = connector;
+ fd[1] = acceptor;
+ return 0;
+
+ abort_tidy_up_and_fail:
+ errno = ECONNABORTED; /* I hope this is portable and appropriate. */
+ tidy_up_and_fail:
+ {
+ int save_errno = errno;
+ if (listener != -1)
+ PerlLIO_close(listener);
+ if (connector != -1)
+ PerlLIO_close(connector);
+ if (acceptor != -1)
+ PerlLIO_close(acceptor);
+ errno = save_errno;
+ return -1;
+ }
+}
+#else
+/* In any case have a stub so that there's code corresponding
+ * to the my_socketpair in global.sym. */
+int
+Perl_my_socketpair (int family, int type, int protocol, int fd[2]) {
+#ifdef HAS_SOCKETPAIR
+ return socketpair(family, type, protocol, fd);
+#else
+ return -1;
+#endif
+}
+#endif
+
+/*
+
+=for apidoc sv_nosharing
+
+Dummy routine which "shares" an SV when there is no sharing module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
+
+=cut
+*/
+
+void
+Perl_sv_nosharing(pTHX_ SV *sv)
+{
+}
+
+/*
+=for apidoc sv_nolocking
+
+Dummy routine which "locks" an SV when there is no locking module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
+
+=cut
+*/
+
+void
+Perl_sv_nolocking(pTHX_ SV *sv)
+{
+}
+
+
+/*
+=for apidoc sv_nounlocking
+
+Dummy routine which "unlocks" an SV when there is no locking module present.
+Exists to avoid test for a NULL function pointer and because it could potentially warn under
+some level of strict-ness.
+
+=cut
+*/
+
+void
+Perl_sv_nounlocking(pTHX_ SV *sv)
+{
+}