/* perlio.c
*
- * Copyright (c) 1996, Nick Ing-Simmons
+ * Copyright (c) 1996-2000, Nick Ing-Simmons
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#define VOIDUSED 1
-#include "config.h"
+#ifdef PERL_MICRO
+# include "uconfig.h"
+#else
+# 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
- * which are not #defined in perlio.h.
- * Which these are depends on various Configure #ifdef's
+ * This file provides those parts of PerlIO abstraction
+ * which are not #defined in iperlsys.h.
+ * Which these are depends on various Configure #ifdef's
*/
#include "EXTERN.h"
+#define PERL_IN_PERLIO_C
#include "perl.h"
-#ifdef PERLIO_IS_STDIO
+#if !defined(PERL_IMPLICIT_SYS)
+
+#ifdef PERLIO_IS_STDIO
void
-PerlIO_init()
+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 PerlIO_tmpfile
PerlIO *
-PerlIO_tmpfile()
+PerlIO_tmpfile(void)
{
return 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
*/
#undef PerlIO_tmpfile
PerlIO *
-PerlIO_tmpfile()
+PerlIO_tmpfile(void)
{
return sftmp(0);
}
void
-PerlIO_init()
+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
+#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
+/* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+
+#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; /* Various flags for state */
+ 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; /* Offset of f->buf into the file */
+ int oneword; /* An if-all-else-fails area as a buffer */
+};
+
+/* Table of pointers to the PerlIO structs (malloc'ed) */
+PerlIO **_perlio = NULL;
+int _perlio_size = 0;
+
+void
+PerlIO_alloc_buf(PerlIO *f)
+{
+ if (!f->bufsiz)
+ f->bufsiz = 4096;
+ 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;
+}
+
+
+/* This "flush" is akin to sfio's sync in that it handles files in either
+ read or write state
+*/
+#undef PerlIO_flush
+int
+PerlIO_flush(PerlIO *f)
+{
+ int code = 0;
+ if (f)
+ {
+ if (f->flags & PERLIO_F_WRBUF)
+ {
+ /* write() the buffer */
+ 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)
+ {
+ f->flags |= PERLIO_F_ERROR;
+ code = -1;
+ break;
+ }
+ }
+ f->posn += (p - f->buf);
+ }
+ else if (f->flags & PERLIO_F_RDBUF)
+ {
+ /* Note position change */
+ f->posn += (f->ptr - f->buf);
+ if (f->ptr < f->end)
+ {
+ /* We did not consume all of it */
+ 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-1; 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;
+ 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_APPEND;
+ if (*++mode == '+')
+ {
+ oflags |= O_RDWR;
+ mode++;
+ }
+ else
+ oflags |= O_WRONLY;
+ break;
+ }
+ if (*mode || oflags == -1)
+ {
+ errno = EINVAL;
+ oflags = -1;
+ }
+ return oflags;
+}
+
+PerlIO *
+PerlIO_allocate(void)
+{
+ /* Find a free slot in the table, growing table as necessary */
+ PerlIO *f;
+ int i = 0;
+ while (1)
+ {
+ PerlIO **table = _perlio;
+ while (i < _perlio_size)
+ {
+ f = table[i];
+ 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);
+ }
+ }
+ return f;
+}
+
+#undef PerlIO_fileno
+int
+PerlIO_fileno(PerlIO *f)
+{
+ if (f && (f->flags & PERLIO_F_OPEN))
+ {
+ return f->fd;
+ }
+ return -1;
+}
+
+#undef PerlIO_close
+int
+PerlIO_close(PerlIO *f)
+{
+ int code = 0;
+ if (f)
+ {
+ if (PerlIO_flush(f) != 0)
+ code = -1;
+ while (close(f->fd) != 0)
+ {
+ if (errno != EINTR)
+ {
+ code = -1;
+ break;
+ }
+ }
+ 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)
+{
+ /* Close all the files */
+ int i;
+ 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_stderr()
+PerlIO_open(const char *path, const char *mode)
{
- return (PerlIO *) stderr;
+ PerlIO *f = NULL;
+ int oflags = PerlIO_oflags(mode);
+ if (oflags != -1)
+ {
+ int fd = open(path,oflags,0666);
+ if (fd >= 0)
+ {
+ f = PerlIO_fdopen(fd,mode);
+ if (!f)
+ close(fd);
+ }
+ }
+ return f;
+}
+
+#undef PerlIO_reopen
+PerlIO *
+PerlIO_reopen(const char *path, const char *mode, PerlIO *f)
+{
+ if (f)
+ {
+ int oflags = PerlIO_oflags(mode);
+ PerlIO_close(f);
+ if (oflags != -1)
+ {
+ int fd = open(path,oflags,0666);
+ if (fd >= 0)
+ {
+ 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");
+ }
}
#undef PerlIO_stdin
PerlIO *
-PerlIO_stdin()
+PerlIO_stdin(void)
{
- return (PerlIO *) stdin;
+ if (!_perlio)
+ PerlIO_init();
+ return _perlio[0];
}
#undef PerlIO_stdout
PerlIO *
-PerlIO_stdout()
+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
-PerlIO_fast_gets(f)
-PerlIO *f;
+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
-PerlIO_has_cntptr(f)
-PerlIO *f;
+int
+PerlIO_has_cntptr(PerlIO *f)
{
-#if defined(USE_STDIO_PTR)
return 1;
-#else
- return 0;
-#endif
}
#undef PerlIO_canset_cnt
-int
-PerlIO_canset_cnt(f)
-PerlIO *f;
+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(f,cnt)
-PerlIO *f;
-int cnt;
-{
- if (cnt < -1)
- warn("Setting cnt to %d\n",cnt);
-#if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE)
- FILE_cnt(f) = cnt;
-#else
- croak("Cannot set 'cnt' of FILE * on this system");
-#endif
+PerlIO_set_cnt(PerlIO *f, int cnt)
+{
+ 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(f,ptr,cnt)
-PerlIO *f;
-STDCHAR *ptr;
-int cnt;
-{
-#ifdef FILE_bufsiz
- STDCHAR *e = FILE_base(f) + FILE_bufsiz(f);
- int ec = e - ptr;
- if (ptr > e + 1)
- warn("Setting ptr %p > end+1 %p\n", ptr, e + 1);
- if (cnt != ec)
- warn("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
- croak("Cannot set 'ptr' of FILE * on this system");
-#endif
-#if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE)
- FILE_cnt(f) = cnt;
-#else
- croak("Cannot set 'cnt' of FILE * on this system");
-#endif
+#undef PerlIO_get_cnt
+int
+PerlIO_get_cnt(PerlIO *f)
+{
+ 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(f)
-PerlIO *f;
+#undef PerlIO_set_ptrcnt
+void
+PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
{
-#ifdef FILE_cnt
- return FILE_cnt(f);
-#else
- croak("Cannot get 'cnt' of FILE * on this system");
- return -1;
-#endif
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ f->ptr = ptr;
+ if (PerlIO_get_cnt(f) != cnt || f->ptr < f->buf)
+ {
+ dTHX;
+ assert(PerlIO_get_cnt(f) == cnt);
+ assert(f->ptr >= f->buf);
+ }
+ f->flags |= PERLIO_F_RDBUF;
+ }
}
#undef PerlIO_get_bufsiz
-int
-PerlIO_get_bufsiz(f)
-PerlIO *f;
+int
+PerlIO_get_bufsiz(PerlIO *f)
{
-#ifdef FILE_bufsiz
- return FILE_bufsiz(f);
-#else
- croak("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(f)
-PerlIO *f;
+PerlIO_get_ptr(PerlIO *f)
{
-#ifdef FILE_ptr
- return FILE_ptr(f);
-#else
- croak("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(f)
-PerlIO *f;
+PerlIO_get_base(PerlIO *f)
{
-#ifdef FILE_base
- return FILE_base(f);
-#else
- croak("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
-PerlIO_has_base(f)
-PerlIO *f;
+#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(f,s)
-PerlIO *f;
-const char *s;
-{
- return fputs(s,f);
-}
-
-#undef PerlIO_open
-PerlIO *
-PerlIO_open(path,mode)
-const char *path;
-const char *mode;
+PerlIO_puts(PerlIO *f, const char *s)
{
- return fopen(path,mode);
+ STRLEN len = strlen(s);
+ return PerlIO_write(f,s,len);
}
-#undef PerlIO_fdopen
-PerlIO *
-PerlIO_fdopen(fd,mode)
-int fd;
-const char *mode;
-{
- return fdopen(fd,mode);
-}
-
-#undef PerlIO_reopen
-PerlIO *
-PerlIO_reopen(name, mode, f)
-const char *name;
-const char *mode;
-PerlIO *f;
+#undef PerlIO_eof
+int
+PerlIO_eof(PerlIO *f)
{
- return freopen(name,mode,f);
+ if (f)
+ {
+ return (f->flags & PERLIO_F_EOF) != 0;
+ }
+ return 1;
}
-#undef PerlIO_close
-int
-PerlIO_close(f)
-PerlIO *f;
+#undef PerlIO_getname
+char *
+PerlIO_getname(PerlIO *f, char *buf)
{
- return fclose(f);
+ dTHX;
+ Perl_croak(aTHX_ "Don't know how to get file name");
+ return NULL;
}
-#undef PerlIO_eof
-int
-PerlIO_eof(f)
-PerlIO *f;
+#undef PerlIO_ungetc
+int
+PerlIO_ungetc(PerlIO *f, int ch)
{
- return feof(f);
+ if (f->buf && (f->flags & PERLIO_F_RDBUF) && f->ptr > f->buf)
+ {
+ *--(f->ptr) = ch;
+ return ch;
+ }
+ return -1;
}
-#undef PerlIO_getname
-char *
-PerlIO_getname(f,buf)
-PerlIO *f;
-char *buf;
+#undef PerlIO_read
+SSize_t
+PerlIO_read(PerlIO *f, void *vbuf, Size_t count)
{
-#ifdef VMS
- return fgetname(f,buf);
-#else
- croak("Don't know how to get file name");
-#endif
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ if (f)
+ {
+ Size_t got = 0;
+ if (!f->ptr)
+ PerlIO_alloc_buf(f);
+ if ((f->oflags & (O_RDONLY|O_WRONLY|O_RDWR)) == O_WRONLY)
+ return 0;
+ 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))
+ {
+ PerlIO_flush(f);
+ 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
-PerlIO_getc(f)
-PerlIO *f;
+int
+PerlIO_getc(PerlIO *f)
{
- return fgetc(f);
+ STDCHAR buf;
+ int count = PerlIO_read(f,&buf,1);
+ if (count == 1)
+ return (unsigned char) buf;
+ return -1;
}
#undef PerlIO_error
-int
-PerlIO_error(f)
-PerlIO *f;
+int
+PerlIO_error(PerlIO *f)
{
- return ferror(f);
+ if (f)
+ {
+ return f->flags & PERLIO_F_ERROR;
+ }
+ return 1;
}
#undef PerlIO_clearerr
void
-PerlIO_clearerr(f)
-PerlIO *f;
+PerlIO_clearerr(PerlIO *f)
{
- clearerr(f);
-}
-
-#undef PerlIO_flush
-int
-PerlIO_flush(f)
-PerlIO *f;
-{
- return Fflush(f);
-}
-
-#undef PerlIO_fileno
-int
-PerlIO_fileno(f)
-PerlIO *f;
-{
- return fileno(f);
+ if (f)
+ {
+ f->flags &= ~PERLIO_F_ERROR;
+ }
}
#undef PerlIO_setlinebuf
void
-PerlIO_setlinebuf(f)
-PerlIO *f;
+PerlIO_setlinebuf(PerlIO *f)
{
-#ifdef HAS_SETLINEBUF
- setlinebuf(f);
-#else
- setvbuf(f, Nullch, _IOLBF, 0);
-#endif
-}
-
-#undef PerlIO_putc
-int
-PerlIO_putc(f,ch)
-PerlIO *f;
-int ch;
-{
- putc(ch,f);
-}
-
-#undef PerlIO_ungetc
-int
-PerlIO_ungetc(f,ch)
-PerlIO *f;
-int ch;
-{
- ungetc(ch,f);
-}
-
-#undef PerlIO_read
-int
-PerlIO_read(f,buf,count)
-PerlIO *f;
-void *buf;
-size_t count;
-{
- return fread(buf,1,count,f);
+ if (f)
+ {
+ f->flags &= ~PERLIO_F_LINEBUF;
+ }
}
#undef PerlIO_write
-int
-PerlIO_write(f,buf,count)
-PerlIO *f;
-const void *buf;
-size_t count;
+SSize_t
+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;
+ if (f)
+ {
+ if (!f->buf)
+ PerlIO_alloc_buf(f);
+ if ((f->oflags & (O_RDONLY|O_WRONLY|O_RDWR)) == O_RDONLY)
+ return 0;
+ while (count > 0)
+ {
+ SSize_t avail = f->bufsiz - (f->ptr - f->buf);
+ if ((SSize_t) 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);
+ break;
+ }
+ }
+ }
+ 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(f,fmt,ap)
-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,&buf,1);
}
-
#undef PerlIO_tell
-long
-PerlIO_tell(f)
-PerlIO *f;
+Off_t
+PerlIO_tell(PerlIO *f)
{
- return ftell(f);
+ Off_t posn = f->posn;
+ if (f->buf)
+ posn += (f->ptr - f->buf);
+ return posn;
}
#undef PerlIO_seek
int
-PerlIO_seek(f,offset,whence)
-PerlIO *f;
-off_t offset;
-int whence;
+PerlIO_seek(PerlIO *f, Off_t offset, int whence)
{
- return fseek(f,offset,whence);
+ int code;
+ code = PerlIO_flush(f);
+ if (code == 0)
+ {
+ f->flags &= ~PERLIO_F_EOF;
+ f->posn = PerlLIO_lseek(f->fd,offset,whence);
+ if (f->posn == (Off_t) -1)
+ {
+ f->posn = 0;
+ code = -1;
+ }
+ }
+ return code;
}
#undef PerlIO_rewind
void
-PerlIO_rewind(f)
-PerlIO *f;
+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 = newSVpvn("",0);
+ char *s;
+ STRLEN len;
+ sv_vcatpvf(sv, fmt, &ap);
+ s = SvPV(sv,len);
+ return PerlIO_write(f,s,len);
}
#undef PerlIO_printf
-int
-#ifdef I_STDARG
+int
PerlIO_printf(PerlIO *f,const char *fmt,...)
-#else
-PerlIO_printf(f,fmt,va_alist)
-PerlIO *f;
-const char *fmt;
-va_dcl
-#endif
{
va_list ap;
int result;
-#ifdef I_STDARG
va_start(ap,fmt);
-#else
- va_start(ap);
-#endif
- result = vfprintf(f,fmt,ap);
+ result = PerlIO_vprintf(f,fmt,ap);
va_end(ap);
return result;
}
#undef PerlIO_stdoutf
-int
-#ifdef I_STDARG
+int
PerlIO_stdoutf(const char *fmt,...)
-#else
-PerlIO_stdoutf(fmt, va_alist)
-const char *fmt;
-va_dcl
-#endif
{
va_list ap;
int result;
-#ifdef I_STDARG
va_start(ap,fmt);
-#else
- va_start(ap);
-#endif
result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap);
va_end(ap);
return result;
#undef PerlIO_tmpfile
PerlIO *
-PerlIO_tmpfile()
-{
- return tmpfile();
+PerlIO_tmpfile(void)
+{
+ dTHX;
+ /* I have no idea how portable mkstemp() is ... */
+ SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0);
+ int fd = mkstemp(SvPVX(sv));
+ PerlIO *f = NULL;
+ if (fd >= 0)
+ {
+ 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(f,fl)
-FILE *f;
-int fl;
+PerlIO_importFILE(FILE *f, int fl)
{
- return f;
+ int fd = fileno(f);
+ /* Should really push stdio discipline when we have them */
+ return PerlIO_fdopen(fd,"r+");
}
#undef PerlIO_exportFILE
FILE *
-PerlIO_exportFILE(f,fl)
-PerlIO *f;
-int fl;
+PerlIO_exportFILE(PerlIO *f, int fl)
{
- return f;
+ PerlIO_flush(f);
+ /* Should really push stdio discipline when we have them */
+ return fdopen(PerlIO_fileno(f),"r+");
}
#undef PerlIO_findFILE
FILE *
-PerlIO_findFILE(f)
-PerlIO *f;
+PerlIO_findFILE(PerlIO *f)
{
- return f;
+ return PerlIO_exportFILE(f,0);
}
#undef PerlIO_releaseFILE
void
-PerlIO_releaseFILE(p,f)
-PerlIO *p;
-FILE *f;
+PerlIO_releaseFILE(PerlIO *p, FILE *f)
{
}
-void
-PerlIO_init()
-{
- /* 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 */
#ifndef HAS_FSETPOS
#undef PerlIO_setpos
int
-PerlIO_setpos(f,pos)
-PerlIO *f;
-const Fpos_t *pos;
+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
#undef PerlIO_setpos
int
-PerlIO_setpos(f,pos)
-PerlIO *f;
-const Fpos_t *pos;
+PerlIO_setpos(PerlIO *f, const Fpos_t *pos)
{
+#if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64)
+ return fsetpos64(f, pos);
+#else
return fsetpos(f, pos);
+#endif
}
#endif
#endif
#ifndef HAS_FGETPOS
#undef PerlIO_getpos
int
-PerlIO_getpos(f,pos)
-PerlIO *f;
-Fpos_t *pos;
+PerlIO_getpos(PerlIO *f, Fpos_t *pos)
{
*pos = PerlIO_tell(f);
return 0;
#ifndef PERLIO_IS_STDIO
#undef PerlIO_getpos
int
-PerlIO_getpos(f,pos)
-PerlIO *f;
-Fpos_t *pos;
+PerlIO_getpos(PerlIO *f, Fpos_t *pos)
{
+#if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64)
+ return fgetpos64(f, pos);
+#else
return fgetpos(f, pos);
+#endif
}
#endif
#endif
#if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF)
int
-vprintf(fd, pat, args)
-FILE *fd;
-char *pat, *args;
+vprintf(char *pat, char *args)
+{
+ _doprnt(pat, args, stdout);
+ return 0; /* wrong, but perl doesn't use the return value */
+}
+
+int
+vfprintf(FILE *fd, char *pat, char *args)
{
_doprnt(pat, args, fd);
return 0; /* wrong, but perl doesn't use the return value */
#endif
#ifndef PerlIO_vsprintf
-int
-PerlIO_vsprintf(s,n,fmt,ap)
-char *s;
-const char *fmt;
-int n;
-va_list ap;
+int
+PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap)
{
int val = vsprintf(s, fmt, ap);
if (n >= 0)
{
if (strlen(s) >= (STRLEN)n)
{
- PerlIO_puts(PerlIO_stderr(),"panic: sprintf overflow - memory corrupted!\n");
+ dTHX;
+ PerlIO_puts(Perl_error_log,"panic: sprintf overflow - memory corrupted!\n");
my_exit(1);
}
}
#endif
#ifndef PerlIO_sprintf
-int
-#ifdef I_STDARG
+int
PerlIO_sprintf(char *s, int n, const char *fmt,...)
-#else
-PerlIO_sprintf(s, n, fmt, va_alist)
-char *s;
-int n;
-const char *fmt;
-va_dcl
-#endif
{
va_list ap;
int result;
-#ifdef I_STDARG
va_start(ap,fmt);
-#else
- va_start(ap);
-#endif
result = PerlIO_vsprintf(s, n, fmt, ap);
va_end(ap);
return result;
}
#endif
+#endif /* !PERL_IMPLICIT_SYS */
+
projects / p5sagit/p5-mst-13.2.git / blobdiff