utf8.c: Shorten hash key for speed

[perl5.git] / doio.c

diff --git a/doio.c b/doio.c
index f770fc1..94f2003 100644 (file)
--- a/doio.c
+++ b/doio.c
@@ -66,7 +66,7 @@ Perl_do_openn(pTHX_ GV *gv, register const char *oname, I32 len, int as_raw,
              I32 num_svs)
 {
     dVAR;
-    register IO * const io = GvIOn(gv);
+    IO * const io = GvIOn(gv);
     PerlIO *saveifp = NULL;
     PerlIO *saveofp = NULL;
     int savefd = -1;
@@ -709,7 +709,7 @@ PerlIO *
 Perl_nextargv(pTHX_ register GV *gv)
 {
     dVAR;
-    register SV *sv;
+    SV *sv;
 #ifndef FLEXFILENAMES
     int filedev;
     int fileino;
@@ -747,6 +747,7 @@ Perl_nextargv(pTHX_ register GV *gv)
        STRLEN oldlen;
        sv = av_shift(GvAV(gv));
        SAVEFREESV(sv);
+       SvTAINTED_off(GvSVn(gv)); /* previous tainting irrelevant */
        sv_setsv(GvSVn(gv),sv);
        SvSETMAGIC(GvSV(gv));
        PL_oldname = SvPVx(GvSV(gv), oldlen);
@@ -993,7 +994,7 @@ bool
 Perl_do_eof(pTHX_ GV *gv)
 {
     dVAR;
-    register IO * const io = GvIO(gv);
+    IO * const io = GvIO(gv);
 
     PERL_ARGS_ASSERT_DO_EOF;
 
@@ -1039,7 +1040,7 @@ Perl_do_tell(pTHX_ GV *gv)
 {
     dVAR;
     IO *const io = GvIO(gv);
-    register PerlIO *fp;
+    PerlIO *fp;
 
     PERL_ARGS_ASSERT_DO_TELL;
 
@@ -1060,7 +1061,7 @@ Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence)
 {
     dVAR;
     IO *const io = GvIO(gv);
-    register PerlIO *fp;
+    PerlIO *fp;
 
     if (io && (fp = IoIFP(io))) {
 #ifdef ULTRIX_STDIO_BOTCH
@@ -1079,7 +1080,7 @@ Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence)
 {
     dVAR;
     IO *const io = GvIO(gv);
-    register PerlIO *fp;
+    PerlIO *fp;
 
     PERL_ARGS_ASSERT_DO_SYSSEEK;
 
@@ -1436,8 +1437,8 @@ bool
 Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report)
 {
     dVAR;
-    register const char **a;
-    register char *s;
+    const char **a;
+    char *s;
     char *buf;
     char *cmd;
     /* Make a copy so we can change it */
@@ -1573,12 +1574,13 @@ I32
 Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
 {
     dVAR;
-    register I32 val;
-    register I32 tot = 0;
+    I32 val;
+    I32 tot = 0;
     const char *const what = PL_op_name[type];
     const char *s;
     STRLEN len;
     SV ** const oldmark = mark;
+    bool killgp = FALSE;
 
     PERL_ARGS_ASSERT_APPLY;
 
@@ -1646,7 +1648,7 @@ Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp)
     case OP_CHOWN:
        APPLY_TAINT_PROPER();
        if (sp - mark > 2) {
-            register I32 val2;
+            I32 val2;
            val = SvIVx(*++mark);
            val2 = SvIVx(*++mark);
            APPLY_TAINT_PROPER();
@@ -1689,6 +1691,12 @@ nothing in the core.
        if (mark == sp)
            break;
        s = SvPVx_const(*++mark, len);
+       if (*s == '-' && isALPHA(s[1]))
+       {
+           s++;
+           len--;
+            killgp = TRUE;
+       }
        if (isALPHA(*s)) {
            if (*s == 'S' && s[1] == 'I' && s[2] == 'G') {
                s += 3;
@@ -1698,12 +1706,18 @@ nothing in the core.
                Perl_croak(aTHX_ "Unrecognized signal name \"%"SVf"\"", SVfARG(*mark));
        }
        else
+       {
            val = SvIV(*mark);
+           if (val < 0)
+           {
+               killgp = TRUE;
+                val = -val;
+           }
+       }
        APPLY_TAINT_PROPER();
        tot = sp - mark;
 #ifdef VMS
        /* kill() doesn't do process groups (job trees?) under VMS */
-       if (val < 0) val = -val;
        if (val == SIGKILL) {
            /* Use native sys$delprc() to insure that target process is
             * deleted; supervisor-mode images don't pay attention to
@@ -1711,7 +1725,7 @@ nothing in the core.
             */
            while (++mark <= sp) {
                I32 proc;
-               register unsigned long int __vmssts;
+               unsigned long int __vmssts;
                SvGETMAGIC(*mark);
                if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
                    Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
@@ -1736,34 +1750,19 @@ nothing in the core.
            break;
        }
 #endif
-       if (val < 0) {
-           val = -val;
-           while (++mark <= sp) {
-               I32 proc;
-               SvGETMAGIC(*mark);
-               if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
-                   Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
-               proc = SvIV_nomg(*mark);
-               APPLY_TAINT_PROPER();
-#ifdef HAS_KILLPG
-               if (PerlProc_killpg(proc,val))  /* BSD */
-#else
-               if (PerlProc_kill(-proc,val))   /* SYSV */
-#endif
-                   tot--;
-           }
-       }
-       else {
-           while (++mark <= sp) {
-               I32 proc;
-               SvGETMAGIC(*mark);
-               if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark)))
-                   Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
-               proc = SvIV_nomg(*mark);
-               APPLY_TAINT_PROPER();
-               if (PerlProc_kill(proc, val))
-                   tot--;
+       while (++mark <= sp) {
+           Pid_t proc;
+           SvGETMAGIC(*mark);
+           if (!(SvNIOK(*mark) || looks_like_number(*mark)))
+               Perl_croak(aTHX_ "Can't kill a non-numeric process ID");
+           proc = SvIV_nomg(*mark);
+           if (killgp)
+           {
+                proc = -proc;
            }
+           APPLY_TAINT_PROPER();
+           if (PerlProc_kill(proc, val))
+               tot--;
        }
        PERL_ASYNC_CHECK();
        break;
@@ -2285,9 +2284,10 @@ Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp)
     if (optype == OP_SHMREAD) {
        char *mbuf;
        /* suppress warning when reading into undef var (tchrist 3/Mar/00) */
+       SvGETMAGIC(mstr);
+       SvUPGRADE(mstr, SVt_PV);
        if (! SvOK(mstr))
            sv_setpvs(mstr, "");
-       SvUPGRADE(mstr, SVt_PV);
        SvPOK_only(mstr);
        mbuf = SvGROW(mstr, (STRLEN)msize+1);