Bump perl version to 5.27.5, including Module::CoreList bits

[perl5.git] / win32 / win32io.c

diff --git a/win32/win32io.c b/win32/win32io.c
index 8e74608..00f5bb8 100644 (file)
--- a/win32/win32io.c
+++ b/win32/win32io.c
@@ -10,11 +10,15 @@
 #include <sys/stat.h>
 #include "EXTERN.h"
 #include "perl.h"
+
+#ifdef PERLIO_LAYERS
+
 #include "perliol.h"
 
 #define NO_XSLOCKS
 #include "XSUB.h"
 
+
 /* Bottom-most level for Win32 case */
 
 typedef struct
@@ -48,15 +52,20 @@ PerlIOWin32_fileno(pTHX_ PerlIO *f)
 }
 
 IV
-PerlIOWin32_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOWin32_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
 {
- IV code = PerlIOBase_pushed(aTHX_ f,mode,arg);
+ IV code = PerlIOBase_pushed(aTHX_ f,mode,arg,tab);
  if (*PerlIONext(f))
   {
    PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32);
    s->fd     = PerlIO_fileno(PerlIONext(f));
   }
  PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+
+ Perl_ck_warner_d(aTHX_
+                 packWARN(WARN_EXPERIMENTAL__WIN32_PERLIO),
+                 "PerlIO layer ':win32' is experimental");
+
  return code;
 }
 
@@ -75,9 +84,12 @@ PerlIOWin32_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const ch
   {
    char *path = SvPV_nolen(*args);
    DWORD  access = 0;
-   DWORD  share  = 0;
+   /* CRT uses _SH_DENYNO for open(), this the Win32 equivelent */
+   DWORD  share  = FILE_SHARE_READ | FILE_SHARE_WRITE;
    DWORD  create = -1;
    DWORD  attr   = FILE_ATTRIBUTE_NORMAL;
+   if (stricmp(path, "/dev/null")==0)
+    path = "NUL";
    if (*mode == '#')
     {
      /* sysopen - imode is UNIX-like O_RDONLY etc.
@@ -136,8 +148,6 @@ PerlIOWin32_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const ch
      SETERRNO(EINVAL,LIB$_INVARG);
      return NULL;
     }
-   if (!(access & GENERIC_WRITE))
-    share = FILE_SHARE_READ;
    h = CreateFile(path,access,share,NULL,create,attr,NULL);
    if (h == INVALID_HANDLE_VALUE)
     {
@@ -179,7 +189,7 @@ PerlIOWin32_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const ch
     }
   }
  if (h != INVALID_HANDLE_VALUE)
-  fd = win32_open_osfhandle((long) h, PerlIOUnix_oflags(tmode));
+  fd = win32_open_osfhandle((intptr_t) h, PerlIOUnix_oflags(tmode));
  if (fd >= 0)
   {
    PerlIOWin32 *s;
@@ -220,6 +230,7 @@ PerlIOWin32_read(pTHX_ PerlIO *f, void *vbuf, Size_t count)
    if (GetLastError() != NO_ERROR)
     {
      PerlIOBase(f)->flags |= PERLIO_F_ERROR;
+     PerlIO_save_errno(f);
      return -1;
     }
    else
@@ -243,6 +254,7 @@ PerlIOWin32_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
  else
   {
    PerlIOBase(f)->flags |= PERLIO_F_ERROR;
+   PerlIO_save_errno(f);
    return -1;
   }
 }
@@ -252,9 +264,13 @@ PerlIOWin32_seek(pTHX_ PerlIO *f, Off_t offset, int whence)
 {
  static const DWORD where[3] = { FILE_BEGIN, FILE_CURRENT, FILE_END };
  PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32);
- DWORD high = (sizeof(offset) > sizeof(DWORD)) ? (DWORD)(offset >> 32) : 0;
+#if Off_t_size >= 8
+ DWORD high = (DWORD)(offset >> 32);
+#else
+ DWORD high = 0;
+#endif
  DWORD low  = (DWORD) offset;
- DWORD res  = SetFilePointer(s->h,low,&high,where[whence]);
+ DWORD res  = SetFilePointer(s->h,(LONG)low,(LONG *)&high,where[whence]);
  if (res != 0xFFFFFFFF || GetLastError() != NO_ERROR)
   {
    return 0;
@@ -270,10 +286,14 @@ PerlIOWin32_tell(pTHX_ PerlIO *f)
 {
  PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32);
  DWORD high = 0;
- DWORD res  = SetFilePointer(s->h,0,&high,FILE_CURRENT);
+ DWORD res  = SetFilePointer(s->h,0,(LONG *)&high,FILE_CURRENT);
  if (res != 0xFFFFFFFF || GetLastError() != NO_ERROR)
   {
+#if Off_t_size >= 8
    return ((Off_t) high << 32) | res;
+#else
+   return res;
+#endif
   }
  return (Off_t) -1;
 }
@@ -284,13 +304,19 @@ PerlIOWin32_close(pTHX_ PerlIO *f)
  PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32);
  if (s->refcnt == 1)
   {
-   if (CloseHandle(s->h))
+   IV code = 0;        
+#if 0
+   /* This does not do pipes etc. correctly */ 
+   if (!CloseHandle(s->h))
     {
      s->h = INVALID_HANDLE_VALUE;
      return -1;
     }
+#else
+    PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
+    return win32_close(s->fd);
+#endif
   }
- PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
  return 0;
 }
 
@@ -299,18 +325,18 @@ PerlIOWin32_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *params, int flags)
 {
  PerlIOWin32 *os = PerlIOSelf(f,PerlIOWin32);
  HANDLE proc = GetCurrentProcess();
- HANDLE new; 
- if (DuplicateHandle(proc, os->h, proc, &new, 0, FALSE,  DUPLICATE_SAME_ACCESS))
+ HANDLE new_h;
+ if (DuplicateHandle(proc, os->h, proc, &new_h, 0, FALSE,  DUPLICATE_SAME_ACCESS))
   {
    char mode[8];
-   int fd = win32_open_osfhandle((long) new, PerlIOUnix_oflags(PerlIO_modestr(o,mode)));
-   if (fd >= 0) 
+   int fd = win32_open_osfhandle((intptr_t) new_h, PerlIOUnix_oflags(PerlIO_modestr(o,mode)));
+   if (fd >= 0)
     {
      f = PerlIOBase_dup(aTHX_ f, o, params, flags);
-     if (f) 
+     if (f)
       {
        PerlIOWin32 *fs = PerlIOSelf(f,PerlIOWin32);
-       fs->h  = new;
+       fs->h  = new_h;
        fs->fd = fd;
        fs->refcnt = 1;
        fdtable[fd] = fs;
@@ -324,19 +350,21 @@ PerlIOWin32_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *params, int flags)
     }
    else
     {
-     CloseHandle(new);
+     CloseHandle(new_h);
     }
   }
  return f;
 }
 
-PerlIO_funcs PerlIO_win32 = {
+PERLIO_FUNCS_DECL(PerlIO_win32) = {
+ sizeof(PerlIO_funcs),
  "win32",
  sizeof(PerlIOWin32),
  PERLIO_K_RAW,
  PerlIOWin32_pushed,
  PerlIOWin32_popped,
  PerlIOWin32_open,
+ PerlIOBase_binmode,
  NULL,                 /* getarg */
  PerlIOWin32_fileno,
  PerlIOWin32_dup,
@@ -359,5 +387,5 @@ PerlIO_funcs PerlIO_win32 = {
  NULL, /* set_ptrcnt */
 };
 
-
+#endif