-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
\f
-#if HAVE_CONFIG_H
+#define _LARGEFILE64_SOURCE /* ask for stat64 etc */
+
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "libguile/gc.h"
#include "libguile/posix.h"
#include "libguile/dynwind.h"
+#include "libguile/hashtab.h"
#include "libguile/fports.h"
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#else
-size_t fwrite ();
#endif
#ifdef HAVE_IO_H
#include <io.h>
#endif
#include <errno.h>
+#include <sys/types.h>
#include "libguile/iselect.h"
#ifdef __MINGW32__
# include <sys/stat.h>
# include <winsock2.h>
-# define ftruncate(fd, size) chsize (fd, size)
#endif /* __MINGW32__ */
+/* Mingw (version 3.4.5, circa 2006) has ftruncate as an alias for chsize
+ already, but have this code here in case that wasn't so in past versions,
+ or perhaps to help other minimal DOS environments.
+
+ gnulib ftruncate.c has code using fcntl F_CHSIZE and F_FREESP, which
+ might be possibilities if we've got other systems without ftruncate. */
+
+#if HAVE_CHSIZE && ! HAVE_FTRUNCATE
+# define ftruncate(fd, size) chsize (fd, size)
+#undef HAVE_FTRUNCATE
+#define HAVE_FTRUNCATE 1
+#endif
+
+#if SIZEOF_OFF_T == SIZEOF_INT
+#define OFF_T_MAX INT_MAX
+#define OFF_T_MIN INT_MIN
+#elif SIZEOF_OFF_T == SIZEOF_LONG
+#define OFF_T_MAX LONG_MAX
+#define OFF_T_MIN LONG_MIN
+#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
+#define OFF_T_MAX LONG_LONG_MAX
+#define OFF_T_MIN LONG_LONG_MIN
+#else
+#error Oops, unknown OFF_T size
+#endif
scm_t_bits scm_tc16_fport;
if (SCM_INPUT_PORT_P (port) && read_size > 0)
{
- pt->read_buf = scm_gc_malloc (read_size, "port buffer");
+ pt->read_buf = scm_gc_malloc_pointerless (read_size, "port buffer");
pt->read_pos = pt->read_end = pt->read_buf;
pt->read_buf_size = read_size;
}
if (SCM_OUTPUT_PORT_P (port) && write_size > 0)
{
- pt->write_buf = scm_gc_malloc (write_size, "port buffer");
+ pt->write_buf = scm_gc_malloc_pointerless (write_size, "port buffer");
pt->write_pos = pt->write_buf;
pt->write_buf_size = write_size;
}
}
else
{
- SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) ^ SCM_BUFLINE);
+ SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) & ~(scm_t_bits)SCM_BUFLINE);
}
if (SCM_UNBNDP (size))
/* Move ports with the specified file descriptor to new descriptors,
* resetting the revealed count to 0.
*/
-
-void
-scm_evict_ports (int fd)
+static void
+scm_i_evict_port (void *closure, SCM port)
{
- long i;
-
- scm_mutex_lock (&scm_i_port_table_mutex);
+ int fd = * (int*) closure;
- for (i = 0; i < scm_i_port_table_size; i++)
+ if (SCM_FPORTP (port))
{
- SCM port = scm_i_port_table[i]->port;
+ scm_t_port *p;
+ scm_t_fport *fp;
- if (SCM_FPORTP (port))
- {
- scm_t_fport *fp = SCM_FSTREAM (port);
+ /* XXX: In some cases, we can encounter a port with no associated ptab
+ entry. */
+ p = SCM_PTAB_ENTRY (port);
+ fp = (p != NULL) ? (scm_t_fport *) p->stream : NULL;
- if (fp->fdes == fd)
- {
- fp->fdes = dup (fd);
- if (fp->fdes == -1)
- scm_syserror ("scm_evict_ports");
- scm_set_port_revealed_x (port, scm_from_int (0));
- }
+ if ((fp != NULL) && (fp->fdes == fd))
+ {
+ fp->fdes = dup (fd);
+ if (fp->fdes == -1)
+ scm_syserror ("scm_evict_ports");
+ scm_set_port_revealed_x (port, scm_from_int (0));
}
}
+}
- scm_mutex_unlock (&scm_i_port_table_mutex);
+void
+scm_evict_ports (int fd)
+{
+ scm_c_port_for_each (scm_i_evict_port, (void *) &fd);
}
"@end table\n"
"The following additional characters can be appended:\n"
"@table @samp\n"
+ "@item b\n"
+ "Open the underlying file in binary mode, if supported by the operating system. "
"@item +\n"
"Open the port for both input and output. E.g., @code{r+}: open\n"
"an existing file for both input and output.\n"
char *md;
char *ptr;
- scm_frame_begin (0);
+ scm_dynwind_begin (0);
file = scm_to_locale_string (filename);
- scm_frame_free (file);
+ scm_dynwind_free (file);
md = scm_to_locale_string (mode);
- scm_frame_free (md);
+ scm_dynwind_free (md);
switch (*md)
{
}
ptr++;
}
- SCM_SYSCALL (fdes = open (file, flags, 0666));
+ SCM_SYSCALL (fdes = open_or_open64 (file, flags, 0666));
if (fdes == -1)
{
int en = errno;
}
port = scm_i_fdes_to_port (fdes, scm_i_mode_bits (mode), filename);
- scm_frame_end ();
+ scm_dynwind_end ();
return port;
}
SCM_MISC_ERROR ("requested file mode not available on fdes", SCM_EOL);
}
- scm_mutex_lock (&scm_i_port_table_mutex);
+ scm_i_scm_pthread_mutex_lock (&scm_i_port_table_mutex);
port = scm_new_port_table_entry (scm_tc16_fport);
SCM_SET_CELL_TYPE(port, scm_tc16_fport | mode_bits);
pt = SCM_PTAB_ENTRY(port);
{
scm_t_fport *fp
- = (scm_t_fport *) scm_gc_malloc (sizeof (scm_t_fport), "file port");
+ = (scm_t_fport *) scm_gc_malloc_pointerless (sizeof (scm_t_fport),
+ "file port");
fp->fdes = fdes;
pt->rw_random = SCM_FDES_RANDOM_P (fdes);
scm_fport_buffer_add (port, -1, -1);
}
SCM_SET_FILENAME (port, name);
- scm_mutex_unlock (&scm_i_port_table_mutex);
+ scm_i_pthread_mutex_unlock (&scm_i_port_table_mutex);
return port;
}
#undef FUNC_NAME
static int
fport_input_waiting (SCM port)
{
- int fdes = SCM_FSTREAM (port)->fdes;
-
#ifdef HAVE_SELECT
+ int fdes = SCM_FSTREAM (port)->fdes;
struct timeval timeout;
SELECT_TYPE read_set;
SELECT_TYPE write_set;
< 0)
scm_syserror ("fport_input_waiting");
return FD_ISSET (fdes, &read_set) ? 1 : 0;
-#elif defined (FIONREAD)
+
+#elif HAVE_IOCTL && defined (FIONREAD)
+ /* Note: cannot test just defined(FIONREAD) here, since mingw has FIONREAD
+ (for use with winsock ioctlsocket()) but not ioctl(). */
+ int fdes = SCM_FSTREAM (port)->fdes;
int remir;
ioctl(fdes, FIONREAD, &remir);
return remir;
+
#else
scm_misc_error ("fport_input_waiting",
"Not fully implemented on this platform",
{
int fdes;
SCM name = SCM_FILENAME (exp);
- if (scm_is_string (name) || SCM_SYMBOLP (name))
+ if (scm_is_string (name) || scm_is_symbol (name))
scm_display (name, port);
else
scm_puts (SCM_PTOBNAME (SCM_PTOBNUM (exp)), port);
{
scm_puts (SCM_PTOBNAME (SCM_PTOBNUM (exp)), port);
scm_putc (' ', port);
- scm_intprint ((scm_t_bits) SCM_PTAB_ENTRY (exp), 16, port);
+ scm_uintprint ((scm_t_bits) SCM_PTAB_ENTRY (exp), 16, port);
}
scm_putc ('>', port);
return 1;
{
FD_ZERO (&readfds);
FD_SET (fdes, &readfds);
- n = scm_internal_select (fdes + 1, &readfds, NULL, NULL, NULL);
+ n = scm_std_select (fdes + 1, &readfds, NULL, NULL, NULL);
}
while (n == -1 && errno == EINTR);
}
}
}
-static off_t
-fport_seek (SCM port, off_t offset, int whence)
+static off_t_or_off64_t
+fport_seek_or_seek64 (SCM port, off_t_or_off64_t offset, int whence)
{
scm_t_port *pt = SCM_PTAB_ENTRY (port);
scm_t_fport *fp = SCM_FSTREAM (port);
- off_t rv;
- off_t result;
+ off_t_or_off64_t rv;
+ off_t_or_off64_t result;
if (pt->rw_active == SCM_PORT_WRITE)
{
if (offset != 0 || whence != SEEK_CUR)
{
fport_flush (port);
- result = rv = lseek (fp->fdes, offset, whence);
+ result = rv = lseek_or_lseek64 (fp->fdes, offset, whence);
}
else
{
/* read current position without disturbing the buffer. */
- rv = lseek (fp->fdes, offset, whence);
+ rv = lseek_or_lseek64 (fp->fdes, offset, whence);
result = rv + (pt->write_pos - pt->write_buf);
}
}
{
/* could expand to avoid a second seek. */
scm_end_input (port);
- result = rv = lseek (fp->fdes, offset, whence);
+ result = rv = lseek_or_lseek64 (fp->fdes, offset, whence);
}
else
{
/* read current position without disturbing the buffer
(particularly the unread-char buffer). */
- rv = lseek (fp->fdes, offset, whence);
+ rv = lseek_or_lseek64 (fp->fdes, offset, whence);
result = rv - (pt->read_end - pt->read_pos);
if (pt->read_buf == pt->putback_buf)
}
else /* SCM_PORT_NEITHER */
{
- result = rv = lseek (fp->fdes, offset, whence);
+ result = rv = lseek_or_lseek64 (fp->fdes, offset, whence);
}
if (rv == -1)
return result;
}
+/* If we've got largefile and off_t isn't already off64_t then
+ fport_seek_or_seek64 needs a range checking wrapper to be fport_seek in
+ the port descriptor.
+
+ Otherwise if no largefile, or off_t is the same as off64_t (which is the
+ case on NetBSD apparently), then fport_seek_or_seek64 is right to be
+ fport_seek already. */
+
+#if GUILE_USE_64_CALLS && HAVE_STAT64 && SIZEOF_OFF_T != SIZEOF_OFF64_T
+static off_t
+fport_seek (SCM port, off_t offset, int whence)
+{
+ off64_t rv = fport_seek_or_seek64 (port, (off64_t) offset, whence);
+ if (rv > OFF_T_MAX || rv < OFF_T_MIN)
+ {
+ errno = EOVERFLOW;
+ scm_syserror ("fport_seek");
+ }
+ return (off_t) rv;
+
+}
+#else
+#define fport_seek fport_seek_or_seek64
+#endif
+
+/* `how' has been validated and is one of SEEK_SET, SEEK_CUR or SEEK_END */
+SCM
+scm_i_fport_seek (SCM port, SCM offset, int how)
+{
+ return scm_from_off_t_or_off64_t
+ (fport_seek_or_seek64 (port, scm_to_off_t_or_off64_t (offset), how));
+}
+
static void
fport_truncate (SCM port, off_t length)
{
scm_syserror ("ftruncate");
}
+int
+scm_i_fport_truncate (SCM port, SCM length)
+{
+ scm_t_fport *fp = SCM_FSTREAM (port);
+ return ftruncate_or_ftruncate64 (fp->fdes, scm_to_off_t_or_off64_t (length));
+}
+
/* helper for fport_write: try to write data, using multiple system
calls if required. */
#define FUNC_NAME "write_all"
HCoop / bpt / guile.git / blobdiff