Merge the implementations of 4 sets of POSIX::Termios methods.

Using ALIAS to merge cfget[io]speed(), get[cloi]flag(), cfset[io]speed()
and set[cloi]flag() reduces the size of POSIX.so by almost 2K on this
platform.

diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs
index 1b7333e..764a9e5 100644 (file)
--- a/ext/POSIX/POSIX.xs
+++ b/ext/POSIX/POSIX.xs
@@ -760,61 +760,41 @@ setattr(termios_ref, fd = 0, optional_actions = 0)
        RETVAL
 
 speed_t
-cfgetispeed(termios_ref)
-       POSIX::Termios  termios_ref
-
-speed_t
-cfgetospeed(termios_ref)
-       POSIX::Termios  termios_ref
-
-tcflag_t
-getiflag(termios_ref)
-       POSIX::Termios  termios_ref
-    CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       RETVAL = termios_ref->c_iflag;
-#else
-     not_here("getiflag");
-     RETVAL = 0;
-#endif
-    OUTPUT:
-       RETVAL
-
-tcflag_t
-getoflag(termios_ref)
-       POSIX::Termios  termios_ref
-    CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       RETVAL = termios_ref->c_oflag;
-#else
-     not_here("getoflag");
-     RETVAL = 0;
-#endif
-    OUTPUT:
-       RETVAL
-
-tcflag_t
-getcflag(termios_ref)
+getispeed(termios_ref)
        POSIX::Termios  termios_ref
+    ALIAS:
+       getospeed = 1
     CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       RETVAL = termios_ref->c_cflag;
-#else
-     not_here("getcflag");
-     RETVAL = 0;
-#endif
+       RETVAL = ix ? cfgetospeed(termios_ref) : cfgetispeed(termios_ref);
     OUTPUT:
        RETVAL
 
 tcflag_t
-getlflag(termios_ref)
+getiflag(termios_ref)
        POSIX::Termios  termios_ref
+    ALIAS:
+       getoflag = 1
+       getcflag = 2
+       getlflag = 3
     CODE:
 #ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       RETVAL = termios_ref->c_lflag;
+       switch(ix) {
+       case 0:
+           RETVAL = termios_ref->c_iflag;
+           break;
+       case 1:
+           RETVAL = termios_ref->c_oflag;
+           break;
+       case 2:
+           RETVAL = termios_ref->c_cflag;
+           break;
+       case 3:
+           RETVAL = termios_ref->c_lflag;
+           break;
+       }
 #else
-     not_here("getlflag");
-     RETVAL = 0;
+       not_here(GvNAME(CvGV(cv)));
+       RETVAL = 0;
 #endif
     OUTPUT:
        RETVAL
@@ -836,57 +816,43 @@ getcc(termios_ref, ccix)
        RETVAL
 
 SysRet
-cfsetispeed(termios_ref, speed)
+setispeed(termios_ref, speed)
        POSIX::Termios  termios_ref
        speed_t         speed
-
-SysRet
-cfsetospeed(termios_ref, speed)
-       POSIX::Termios  termios_ref
-       speed_t         speed
-
-void
-setiflag(termios_ref, iflag)
-       POSIX::Termios  termios_ref
-       tcflag_t        iflag
-    CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       termios_ref->c_iflag = iflag;
-#else
-           not_here("setiflag");
-#endif
-
-void
-setoflag(termios_ref, oflag)
-       POSIX::Termios  termios_ref
-       tcflag_t        oflag
-    CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       termios_ref->c_oflag = oflag;
-#else
-           not_here("setoflag");
-#endif
-
-void
-setcflag(termios_ref, cflag)
-       POSIX::Termios  termios_ref
-       tcflag_t        cflag
+    ALIAS:
+       setospeed = 1
     CODE:
-#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       termios_ref->c_cflag = cflag;
-#else
-           not_here("setcflag");
-#endif
+       RETVAL = ix
+           ? cfsetospeed(termios_ref, speed) : cfsetispeed(termios_ref, speed);
+    OUTPUT:
+       RETVAL
 
 void
-setlflag(termios_ref, lflag)
+setiflag(termios_ref, flag)
        POSIX::Termios  termios_ref
-       tcflag_t        lflag
+       tcflag_t        flag
+    ALIAS:
+       setoflag = 1
+       setcflag = 2
+       setlflag = 3
     CODE:
 #ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
-       termios_ref->c_lflag = lflag;
+       switch(ix) {
+       case 0:
+           termios_ref->c_iflag = flag;
+           break;
+       case 1:
+           termios_ref->c_oflag = flag;
+           break;
+       case 2:
+           termios_ref->c_cflag = flag;
+           break;
+       case 3:
+           termios_ref->c_lflag = flag;
+           break;
+       }
 #else
-           not_here("setlflag");
+       not_here(GvNAME(CvGV(cv)));
 #endif
 
 void