# include "config.h"
#endif
-#define PERLIO_NOT_STDIO 0
+#define PERLIO_NOT_STDIO 0
#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
-#define PerlIO FILE
+/* #define PerlIO FILE */
#endif
/*
- * This file provides those parts of PerlIO abstraction
+ * This file provides those parts of PerlIO abstraction
* which are not #defined in iperlsys.h.
- * Which these are depends on various Configure #ifdef's
+ * Which these are depends on various Configure #ifdef's
*/
#include "EXTERN.h"
#if !defined(PERL_IMPLICIT_SYS)
-#ifdef PERLIO_IS_STDIO
+#ifdef PERLIO_IS_STDIO
void
PerlIO_init(void)
{
- /* Does nothing (yet) except force this file to be included
+ /* Does nothing (yet) except force this file to be included
in perl binary. That allows this file to force inclusion
- of other functions that may be required by loadable
- extensions e.g. for FileHandle::tmpfile
+ of other functions that may be required by loadable
+ extensions e.g. for FileHandle::tmpfile
*/
}
#undef HAS_FSETPOS
#undef HAS_FGETPOS
-/* This section is just to make sure these functions
+/* This section is just to make sure these functions
get pulled in from libsfio.a
*/
void
PerlIO_init(void)
{
- /* Force this file to be included in perl binary. Which allows
- * this file to force inclusion of other functions that may be
- * required by loadable extensions e.g. for FileHandle::tmpfile
+ /* Force this file to be included in perl binary. Which allows
+ * this file to force inclusion of other functions that may be
+ * required by loadable extensions e.g. for FileHandle::tmpfile
*/
/* Hack
* sfio does its own 'autoflush' on stdout in common cases.
- * Flush results in a lot of lseek()s to regular files and
+ * Flush results in a lot of lseek()s to regular files and
* lot of small writes to pipes.
*/
sfset(sfstdout,SF_SHARE,0);
#else /* USE_SFIO */
-/* Implement all the PerlIO interface using stdio.
- - this should be only file to include <stdio.h>
+/*======================================================================================*/
+
+/* Implement all the PerlIO interface ourselves.
*/
-#undef PerlIO_stderr
+#undef printf
+void PerlIO_debug(char *fmt,...) __attribute__((format(printf,1,2)));
+
+
+void
+PerlIO_debug(char *fmt,...)
+{
+ static int dbg = 0;
+ if (!dbg)
+ {
+ char *s = getenv("PERLIO_DEBUG");
+ if (s && *s)
+ dbg = open(s,O_WRONLY|O_CREAT|O_APPEND,0666);
+ else
+ dbg = -1;
+ }
+ if (dbg > 0)
+ {
+ dTHX;
+ va_list ap;
+ SV *sv = newSVpvn("",0);
+ char *s;
+ STRLEN len;
+ va_start(ap,fmt);
+ sv_vcatpvf(sv, fmt, &ap);
+ s = SvPV(sv,len);
+ write(dbg,s,len);
+ va_end(ap);
+ SvREFCNT_dec(sv);
+ }
+}
+
+#define PERLIO_F_EOF 0x010000
+#define PERLIO_F_ERROR 0x020000
+#define PERLIO_F_LINEBUF 0x040000
+#define PERLIO_F_TEMP 0x080000
+#define PERLIO_F_RDBUF 0x100000
+#define PERLIO_F_WRBUF 0x200000
+#define PERLIO_F_OPEN 0x400000
+#define PERLIO_F_USED 0x800000
+
+struct _PerlIO
+{
+ IV flags;
+ IV fd; /* Maybe pointer on some OSes */
+ int oflags; /* open/fcntl flags */
+ STDCHAR *buf; /* Start of buffer */
+ STDCHAR *end; /* End of valid part of buffer */
+ STDCHAR *ptr; /* Current position in buffer */
+ Size_t bufsiz; /* Size of buffer */
+ Off_t posn;
+ int oneword;
+};
+
+int _perlio_size = 0;
+PerlIO **_perlio = NULL;
+
+void
+PerlIO_alloc_buf(PerlIO *f)
+{
+ if (!f->bufsiz)
+ f->bufsiz = 2;
+ New('B',f->buf,f->bufsiz,char);
+ if (!f->buf)
+ {
+ f->buf = (STDCHAR *)&f->oneword;
+ f->bufsiz = sizeof(f->oneword);
+ }
+ f->ptr = f->buf;
+ f->end = f->ptr;
+ PerlIO_debug(__FUNCTION__ " f=%p b=%p p=%p e=%p\n",
+ f,f->buf,f->ptr,f->end);
+}
+
+#undef PerlIO_flush
+int
+PerlIO_flush(PerlIO *f)
+{
+ int code = 0;
+ if (f)
+ {
+ PerlIO_debug(__FUNCTION__ " f=%p flags=%08X c=%d buf=%p ptr=%p\n",
+ f,f->flags,(f->ptr-f->buf),f->buf,f->ptr);
+ if (f->flags & PERLIO_F_WRBUF)
+ {
+ STDCHAR *p = f->buf;
+ int count;
+ while (p < f->ptr)
+ {
+ count = write(f->fd,p,f->ptr - p);
+ if (count > 0)
+ {
+ p += count;
+ }
+ else if (count < 0 && errno != EINTR)
+ {
+ code = -1;
+ break;
+ }
+ }
+ f->posn += (p - f->buf);
+ }
+ else if (f->flags & PERLIO_F_RDBUF)
+ {
+ f->posn += (f->ptr - f->buf);
+ if (f->ptr < f->end)
+ {
+ f->posn = lseek(f->fd,f->posn,SEEK_SET);
+ }
+ }
+ f->ptr = f->end = f->buf;
+ f->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF);
+ }
+ else
+ {
+ int i;
+ for (i=_perlio_size; i >= 0; i--)
+ {
+ if ((f = _perlio[i]))
+ {
+ if (PerlIO_flush(f) != 0)
+ code = -1;
+ }
+ }
+ }
+ return code;
+}
+
+int
+PerlIO_oflags(const char *mode)
+{
+ int oflags = -1;
+ PerlIO_debug(__FUNCTION__ " %s = ",mode);
+ switch(*mode)
+ {
+ case 'r':
+ oflags = O_RDONLY;
+ if (*++mode == '+')
+ {
+ oflags = O_RDWR;
+ mode++;
+ }
+ break;
+
+ case 'w':
+ oflags = O_CREAT|O_TRUNC;
+ if (*++mode == '+')
+ {
+ oflags |= O_RDWR;
+ mode++;
+ }
+ else
+ oflags |= O_WRONLY;
+ break;
+
+ case 'a':
+ oflags = O_CREAT|O_TRUNC|O_APPEND;
+ if (*++mode == '+')
+ {
+ oflags |= O_RDWR;
+ mode++;
+ }
+ else
+ oflags |= O_WRONLY;
+ break;
+ }
+ if (*mode || oflags == -1)
+ {
+ errno = EINVAL;
+ oflags = -1;
+ }
+ PerlIO_debug(" %X '%s'\n",oflags,mode);
+ return oflags;
+}
+
PerlIO *
-PerlIO_stderr(void)
+PerlIO_allocate(void)
+{
+ PerlIO *f;
+ int i = 0;
+ while (1)
+ {
+ PerlIO **table = _perlio;
+ while (i < _perlio_size)
+ {
+ f = table[i];
+ PerlIO_debug(__FUNCTION__ " try %d %p\n",i,f);
+ if (!f)
+ {
+ Newz('F',f,1,PerlIO);
+ if (!f)
+ return NULL;
+ table[i] = f;
+ }
+ if (!(f->flags & PERLIO_F_USED))
+ {
+ Zero(f,1,PerlIO);
+ f->flags = PERLIO_F_USED;
+ return f;
+ }
+ i++;
+ }
+ Newz('I',table,_perlio_size+16,PerlIO *);
+ if (!table)
+ return NULL;
+ Copy(_perlio,table,_perlio_size,PerlIO *);
+ if (_perlio)
+ Safefree(_perlio);
+ _perlio = table;
+ _perlio_size += 16;
+ }
+}
+
+#undef PerlIO_fdopen
+PerlIO *
+PerlIO_fdopen(int fd, const char *mode)
+{
+ PerlIO *f = NULL;
+ if (fd >= 0)
+ {
+ if ((f = PerlIO_allocate()))
+ {
+ f->fd = fd;
+ f->oflags = PerlIO_oflags(mode);
+ f->flags |= (PERLIO_F_OPEN|PERLIO_F_USED);
+ }
+ }
+ PerlIO_debug(__FUNCTION__ " fd=%d m=%s f=%p\n",fd,mode,f);
+ return f;
+}
+
+#undef PerlIO_fileno
+int
+PerlIO_fileno(PerlIO *f)
{
- return (PerlIO *) stderr;
+ if (f && (f->flags & PERLIO_F_OPEN))
+ {
+ return f->fd;
+ }
+ return -1;
+}
+
+#undef PerlIO_close
+int
+PerlIO_close(PerlIO *f)
+{
+ int code = -1;
+ if (f)
+ {
+ PerlIO_flush(f);
+ while ((code = close(f->fd)) && errno == EINTR);
+ f->flags &= ~PERLIO_F_OPEN;
+ f->fd = -1;
+ if (f->buf && f->buf != (STDCHAR *) &f->oneword)
+ {
+ Safefree(f->buf);
+ }
+ f->buf = NULL;
+ f->ptr = f->end = f->buf;
+ f->flags &= ~(PERLIO_F_USED|PERLIO_F_RDBUF|PERLIO_F_WRBUF);
+ }
+ return code;
+}
+
+void
+PerlIO_cleanup(void)
+{
+ int i;
+ PerlIO_debug(__FUNCTION__ "\n");
+ for (i=_perlio_size-1; i >= 0; i--)
+ {
+ PerlIO *f = _perlio[i];
+ if (f)
+ {
+ PerlIO_close(f);
+ Safefree(f);
+ }
+ }
+ if (_perlio)
+ Safefree(_perlio);
+ _perlio = NULL;
+ _perlio_size = 0;
+}
+
+#undef PerlIO_open
+PerlIO *
+PerlIO_open(const char *path, const char *mode)
+{
+ PerlIO *f = NULL;
+ int oflags = PerlIO_oflags(mode);
+ if (oflags != -1)
+ {
+ int fd = open(path,oflags,0666);
+ if (fd >= 0)
+ {
+ PerlIO_debug(__FUNCTION__ "fd=%d\n",fd);
+ f = PerlIO_fdopen(fd,mode);
+ if (!f)
+ close(fd);
+ }
+ }
+ PerlIO_debug(__FUNCTION__ " path=%s m=%s f=%p\n",path,mode,f);
+ return f;
+}
+
+#undef PerlIO_reopen
+PerlIO *
+PerlIO_reopen(const char *path, const char *mode, PerlIO *f)
+{
+ PerlIO_debug(__FUNCTION__ " n=%s m=%s f=%p\n",path,mode,f);
+ if (f)
+ {
+ int oflags = PerlIO_oflags(mode);
+ PerlIO_close(f);
+ if (oflags != -1)
+ {
+ int fd = open(path,oflags,0666);
+ if (fd >= 0)
+ {
+ PerlIO_debug(__FUNCTION__ "fd=%d\n",fd);
+ f->oflags = oflags;
+ f->flags |= (PERLIO_F_OPEN|PERLIO_F_USED);
+ }
+ }
+ else
+ {
+ return NULL;
+ }
+ }
+ return PerlIO_open(path,mode);
+}
+
+void
+PerlIO_init(void)
+{
+ if (!_perlio)
+ {
+ atexit(&PerlIO_cleanup);
+ PerlIO_fdopen(0,"r");
+ PerlIO_fdopen(1,"w");
+ PerlIO_fdopen(2,"w");
+ }
+ PerlIO_debug(__FUNCTION__ "\n");
}
#undef PerlIO_stdin
PerlIO *
PerlIO_stdin(void)
{
- return (PerlIO *) stdin;
+ if (!_perlio)
+ PerlIO_init();
+ return _perlio[0];
}
#undef PerlIO_stdout
PerlIO *
PerlIO_stdout(void)
{
- return (PerlIO *) stdout;
+ if (!_perlio)
+ PerlIO_init();
+ return _perlio[1];
+}
+
+#undef PerlIO_stderr
+PerlIO *
+PerlIO_stderr(void)
+{
+ if (!_perlio)
+ PerlIO_init();
+ return _perlio[2];
}
#undef PerlIO_fast_gets
-int
+int
PerlIO_fast_gets(PerlIO *f)
{
-#if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE)
return 1;
-#else
- return 0;
-#endif
}
#undef PerlIO_has_cntptr
-int
+int
PerlIO_has_cntptr(PerlIO *f)
{
-#if defined(USE_STDIO_PTR)
return 1;
-#else
- return 0;
-#endif
}
#undef PerlIO_canset_cnt
-int
+int
PerlIO_canset_cnt(PerlIO *f)
{
-#if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE)
return 1;
-#else
- return 0;
-#endif
}
#undef PerlIO_set_cnt
void
PerlIO_set_cnt(PerlIO *f, int cnt)
{
- dTHX;
- if (cnt < -1 && ckWARN_d(WARN_INTERNAL))
- Perl_warner(aTHX_ WARN_INTERNAL, "Setting cnt to %d\n",cnt);
-#if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE)
- FILE_cnt(f) = cnt;
-#else
- Perl_croak(aTHX_ "Cannot set 'cnt' of FILE * on this system");
-#endif
+ if (f)
+ {
+ dTHX;
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ f->ptr = f->end - cnt;
+ assert(f->ptr >= f->buf);
+ }
}
-#undef PerlIO_set_ptrcnt
-void
-PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
+#undef PerlIO_get_cnt
+int
+PerlIO_get_cnt(PerlIO *f)
{
- dTHX;
-#ifdef FILE_bufsiz
- STDCHAR *e = FILE_base(f) + FILE_bufsiz(f);
- int ec = e - ptr;
- if (ptr > e + 1 && ckWARN_d(WARN_INTERNAL))
- Perl_warner(aTHX_ WARN_INTERNAL, "Setting ptr %p > end+1 %p\n", ptr, e + 1);
- if (cnt != ec && ckWARN_d(WARN_INTERNAL))
- Perl_warner(aTHX_ WARN_INTERNAL, "Setting cnt to %d, ptr implies %d\n",cnt,ec);
-#endif
-#if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE)
- FILE_ptr(f) = ptr;
-#else
- Perl_croak(aTHX_ "Cannot set 'ptr' of FILE * on this system");
-#endif
-#if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE)
- FILE_cnt(f) = cnt;
-#else
- Perl_croak(aTHX_ "Cannot set 'cnt' of FILE * on this system");
-#endif
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ if (f->flags & PERLIO_F_RDBUF)
+ return (f->end - f->ptr);
+ }
+ return 0;
}
-#undef PerlIO_get_cnt
-int
-PerlIO_get_cnt(PerlIO *f)
+#undef PerlIO_set_ptrcnt
+void
+PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
{
-#ifdef FILE_cnt
- return FILE_cnt(f);
-#else
- dTHX;
- Perl_croak(aTHX_ "Cannot get 'cnt' of FILE * on this system");
- return -1;
-#endif
+ if (f)
+ {
+ dTHX;
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ f->ptr = ptr;
+ assert(f->ptr >= f->buf);
+ if (PerlIO_get_cnt(f) != cnt)
+ {
+ dTHX;
+ assert(PerlIO_get_cnt(f) != cnt);
+ }
+ }
}
#undef PerlIO_get_bufsiz
-int
+int
PerlIO_get_bufsiz(PerlIO *f)
{
-#ifdef FILE_bufsiz
- return FILE_bufsiz(f);
-#else
- dTHX;
- Perl_croak(aTHX_ "Cannot get 'bufsiz' of FILE * on this system");
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ return f->bufsiz;
+ }
return -1;
-#endif
}
#undef PerlIO_get_ptr
STDCHAR *
PerlIO_get_ptr(PerlIO *f)
{
-#ifdef FILE_ptr
- return FILE_ptr(f);
-#else
- dTHX;
- Perl_croak(aTHX_ "Cannot get 'ptr' of FILE * on this system");
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ return f->ptr;
+ }
return NULL;
-#endif
}
#undef PerlIO_get_base
STDCHAR *
PerlIO_get_base(PerlIO *f)
{
-#ifdef FILE_base
- return FILE_base(f);
-#else
- dTHX;
- Perl_croak(aTHX_ "Cannot get 'base' of FILE * on this system");
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ return f->buf;
+ }
return NULL;
-#endif
}
-#undef PerlIO_has_base
-int
+#undef PerlIO_has_base
+int
PerlIO_has_base(PerlIO *f)
{
-#ifdef FILE_base
- return 1;
-#else
- return 0;
-#endif
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ return f->buf != NULL;
+ }
}
#undef PerlIO_puts
int
PerlIO_puts(PerlIO *f, const char *s)
{
- return fputs(s,f);
-}
-
-#undef PerlIO_open
-PerlIO *
-PerlIO_open(const char *path, const char *mode)
-{
- return fopen(path,mode);
-}
-
-#undef PerlIO_fdopen
-PerlIO *
-PerlIO_fdopen(int fd, const char *mode)
-{
- return fdopen(fd,mode);
-}
-
-#undef PerlIO_reopen
-PerlIO *
-PerlIO_reopen(const char *name, const char *mode, PerlIO *f)
-{
- return freopen(name,mode,f);
-}
-
-#undef PerlIO_close
-int
-PerlIO_close(PerlIO *f)
-{
- return fclose(f);
+ STRLEN len = strlen(s);
+ return PerlIO_write(f,s,len);
}
#undef PerlIO_eof
-int
+int
PerlIO_eof(PerlIO *f)
{
- return feof(f);
+ if (f)
+ {
+ return (f->flags & PERLIO_F_EOF) != 0;
+ }
+ return 1;
}
#undef PerlIO_getname
#endif
}
+#undef PerlIO_ungetc
+int
+PerlIO_ungetc(PerlIO *f, int ch)
+{
+ PerlIO_debug(__FUNCTION__ " f=%p c=%c\n",f,ch);
+ if (f->buf && (f->flags & PERLIO_F_RDBUF) && f->ptr > f->buf)
+ {
+ *--(f->ptr) = ch;
+ return ch;
+ }
+ return -1;
+}
+
+#undef PerlIO_read
+SSize_t
+PerlIO_read(PerlIO *f, void *vbuf, Size_t count)
+{
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ if (f)
+ {
+ Size_t got = 0;
+ if (!f->ptr)
+ PerlIO_alloc_buf(f);
+
+ while (count > 0)
+ {
+ SSize_t avail = (f->end - f->ptr);
+ if ((SSize_t) count < avail)
+ avail = count;
+ if (avail > 0)
+ {
+ Copy(f->ptr,buf,avail,char);
+ got += avail;
+ f->ptr += avail;
+ count -= avail;
+ buf += avail;
+ }
+ if (count && (f->ptr >= f->end))
+ {
+ f->ptr = f->end = f->buf;
+ avail = read(f->fd,f->ptr,f->bufsiz);
+ if (avail <= 0)
+ {
+ if (avail == 0)
+ f->flags |= PERLIO_F_EOF;
+ else if (errno == EINTR)
+ continue;
+ else
+ f->flags |= PERLIO_F_ERROR;
+ break;
+ }
+ f->end = f->buf+avail;
+ f->flags |= PERLIO_F_RDBUF;
+ }
+ }
+ return got;
+ }
+ return 0;
+}
+
#undef PerlIO_getc
-int
+int
PerlIO_getc(PerlIO *f)
{
- return fgetc(f);
+ STDCHAR buf;
+ int count = PerlIO_read(f,&buf,1);
+ if (count == 1)
+ return buf;
+ return -1;
}
#undef PerlIO_error
-int
+int
PerlIO_error(PerlIO *f)
{
- return ferror(f);
+ if (f)
+ {
+ return f->flags & PERLIO_F_ERROR;
+ }
+ return 1;
}
#undef PerlIO_clearerr
void
PerlIO_clearerr(PerlIO *f)
{
- clearerr(f);
-}
-
-#undef PerlIO_flush
-int
-PerlIO_flush(PerlIO *f)
-{
- return Fflush(f);
-}
-
-#undef PerlIO_fileno
-int
-PerlIO_fileno(PerlIO *f)
-{
- return fileno(f);
+ if (f)
+ {
+ f->flags &= ~PERLIO_F_ERROR;
+ }
}
#undef PerlIO_setlinebuf
void
PerlIO_setlinebuf(PerlIO *f)
{
-#ifdef HAS_SETLINEBUF
- setlinebuf(f);
-#else
-# ifdef __BORLANDC__ /* Borland doesn't like NULL size for _IOLBF */
- setvbuf(f, Nullch, _IOLBF, BUFSIZ);
-# else
- setvbuf(f, Nullch, _IOLBF, 0);
-# endif
-#endif
-}
-
-#undef PerlIO_putc
-int
-PerlIO_putc(PerlIO *f, int ch)
-{
- return putc(ch,f);
-}
-
-#undef PerlIO_ungetc
-int
-PerlIO_ungetc(PerlIO *f, int ch)
-{
- return ungetc(ch,f);
-}
-
-#undef PerlIO_read
-SSize_t
-PerlIO_read(PerlIO *f, void *buf, Size_t count)
-{
- return fread(buf,1,count,f);
+ if (f)
+ {
+ f->flags &= ~PERLIO_F_LINEBUF;
+ }
}
#undef PerlIO_write
SSize_t
-PerlIO_write(PerlIO *f, const void *buf, Size_t count)
+PerlIO_write(PerlIO *f, const void *vbuf, Size_t count)
{
- return fwrite1(buf,1,count,f);
+ const STDCHAR *buf = (const STDCHAR *) vbuf;
+ Size_t written = 0;
+ PerlIO_debug(__FUNCTION__ " f=%p c=%d\n",f,count);
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ while (count > 0)
+ {
+ Size_t avail = f->bufsiz - (f->ptr - f->buf);
+ if (count < avail)
+ avail = count;
+ f->flags |= PERLIO_F_WRBUF;
+ if (f->flags & PERLIO_F_LINEBUF)
+ {
+ while (avail > 0)
+ {
+ int ch = *buf++;
+ *(f->ptr)++ = ch;
+ count--;
+ avail--;
+ written++;
+ if (ch == '\n')
+ PerlIO_flush(f);
+ }
+ }
+ else
+ {
+ if (avail)
+ {
+ Copy(buf,f->ptr,avail,char);
+ count -= avail;
+ buf += avail;
+ written += avail;
+ f->ptr += avail;
+ }
+ }
+ if (f->ptr >= (f->buf + f->bufsiz))
+ PerlIO_flush(f);
+ }
+ }
+ return written;
}
-#undef PerlIO_vprintf
-int
-PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap)
+#undef PerlIO_putc
+int
+PerlIO_putc(PerlIO *f, int ch)
{
- return vfprintf(f,fmt,ap);
+ STDCHAR buf = ch;
+ PerlIO_write(f,&ch,1);
}
#undef PerlIO_tell
Off_t
PerlIO_tell(PerlIO *f)
{
-#if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64)
- return ftello(f);
-#else
- return ftell(f);
-#endif
+ Off_t posn = f->posn + (f->ptr - f->buf);
+ return posn;
}
#undef PerlIO_seek
int
PerlIO_seek(PerlIO *f, Off_t offset, int whence)
{
-#if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64)
- return fseeko(f,offset,whence);
-#else
- return fseek(f,offset,whence);
-#endif
+ int code = PerlIO_flush(f);
+ if (code == 0)
+ {
+ f->flags &= ~PERLIO_F_EOF;
+ f->posn = lseek(f->fd,offset,whence);
+ if (f->posn == (Off_t) -1)
+ {
+ f->posn = 0;
+ code = -1;
+ }
+ }
+ return code;
}
#undef PerlIO_rewind
void
PerlIO_rewind(PerlIO *f)
{
- rewind(f);
+ PerlIO_seek(f,(Off_t)0,SEEK_SET);
+}
+
+#undef PerlIO_vprintf
+int
+PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap)
+{
+ dTHX;
+ SV *sv = newSV(strlen(fmt));
+ char *s;
+ STRLEN len;
+ sv_vcatpvf(sv, fmt, &ap);
+ s = SvPV(sv,len);
+ return (PerlIO_write(f,s,len) == len) ? 1 : 0;
}
#undef PerlIO_printf
-int
+int
PerlIO_printf(PerlIO *f,const char *fmt,...)
{
va_list ap;
int result;
va_start(ap,fmt);
- result = vfprintf(f,fmt,ap);
+ result = PerlIO_vprintf(f,fmt,ap);
va_end(ap);
return result;
}
#undef PerlIO_stdoutf
-int
+int
PerlIO_stdoutf(const char *fmt,...)
{
va_list ap;
PerlIO *
PerlIO_tmpfile(void)
{
- return tmpfile();
+ dTHX;
+ SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0);
+ int fd = mkstemp(SvPVX(sv));
+ PerlIO *f = NULL;
+ if (fd >= 0)
+ {
+ PerlIO *f = PerlIO_fdopen(fd,"w+");
+ if (f)
+ {
+ f->flags |= PERLIO_F_TEMP;
+ }
+ unlink(SvPVX(sv));
+ SvREFCNT_dec(sv);
+ }
+ return f;
}
#undef PerlIO_importFILE
PerlIO *
PerlIO_importFILE(FILE *f, int fl)
{
- return f;
+ int fd = fileno(f);
+ return PerlIO_fdopen(fd,"r+");
}
#undef PerlIO_exportFILE
FILE *
PerlIO_exportFILE(PerlIO *f, int fl)
{
- return f;
+ PerlIO_flush(f);
+ return fdopen(PerlIO_fileno(f),"r+");
}
#undef PerlIO_findFILE
FILE *
PerlIO_findFILE(PerlIO *f)
{
- return f;
+ return PerlIO_exportFILE(f,0);
}
#undef PerlIO_releaseFILE
{
}
-void
-PerlIO_init(void)
-{
- /* Does nothing (yet) except force this file to be included
- in perl binary. That allows this file to force inclusion
- of other functions that may be required by loadable
- extensions e.g. for FileHandle::tmpfile
- */
-}
+#undef HAS_FSETPOS
+#undef HAS_FGETPOS
+
+/*======================================================================================*/
#endif /* USE_SFIO */
#endif /* PERLIO_IS_STDIO */
int
PerlIO_setpos(PerlIO *f, const Fpos_t *pos)
{
- return PerlIO_seek(f,*pos,0);
+ return PerlIO_seek(f,*pos,0);
}
#else
#ifndef PERLIO_IS_STDIO
#endif
#ifndef PerlIO_vsprintf
-int
+int
PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap)
{
int val = vsprintf(s, fmt, ap);
#endif
#ifndef PerlIO_sprintf
-int
+int
PerlIO_sprintf(char *s, int n, const char *fmt,...)
{
va_list ap;
projects / p5sagit/p5-mst-13.2.git / commitdiff