#include <stdio.h>
#include <fcntl.h>
-#include "_scm.h"
+#include "libguile/_scm.h"
+#include "libguile/strings.h"
-#include "scm_validate.h"
-#include "fports.h"
+#include "libguile/validate.h"
+#include "libguile/fports.h"
#ifdef HAVE_STRING_H
#include <string.h>
#include <errno.h>
-#include "iselect.h"
+#include "libguile/iselect.h"
+
+/* default buffer size, used if the O/S won't supply a value. */
+static const int default_buffer_size = 1024;
/* create FPORT buffer with specified sizes (or -1 to use default size or
0 for no buffer. */
#ifdef HAVE_ST_BLKSIZE
struct stat st;
- if (fstat (fp->fdes, &st) == -1)
- scm_syserror (s_scm_fport_buffer_add);
- default_size = st.st_blksize;
+ default_size = (fstat (fp->fdes, &st) == -1) ? default_buffer_size
+ : st.st_blksize;
#else
- default_size = 1024;
+ default_size = default_buffer_size;
#endif
if (read_size == -1)
read_size = default_size;
pt->write_end = pt->write_buf + pt->write_buf_size;
if (read_size > 0 || write_size > 0)
- SCM_SETCAR (port, SCM_CAR (port) & ~SCM_BUF0);
+ SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) & ~SCM_BUF0);
else
- SCM_SETCAR (port, (SCM_CAR (port) | SCM_BUF0));
+ SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) | SCM_BUF0);
}
SCM_DEFINE (scm_setvbuf, "setvbuf", 2, 1, 0,
"@item _IOFBF\n"
"block buffered, using a newly allocated buffer of @var{size} bytes.\n"
"If @var{size} is omitted, a default size will be used.\n"
- "@end table\n\n\n"
- "@deffn primitive fcntl fd/port command [value]\n"
- "Apply @var{command} to the specified file descriptor or the underlying\n"
- "file descriptor of the specified port. @var{value} is an optional\n"
- "integer argument.\n\n"
- "Values for @var{command} are:\n\n"
- "@table @code\n"
- "@item F_DUPFD\n"
- "Duplicate a file descriptor\n"
- "@item F_GETFD\n"
- "Get flags associated with the file descriptor.\n"
- "@item F_SETFD\n"
- "Set flags associated with the file descriptor to @var{value}.\n"
- "@item F_GETFL\n"
- "Get flags associated with the open file.\n"
- "@item F_SETFL\n"
- "Set flags associated with the open file to @var{value}\n"
- "@item F_GETOWN\n"
- "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n"
- "@item F_SETOWN\n"
- "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n"
- "@item FD_CLOEXEC\n"
- "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n"
- "@code{F_SETFL}.\n"
"@end table\n"
- "")
+ )
#define FUNC_NAME s_scm_setvbuf
{
int cmode, csize;
if (cmode == _IOLBF)
{
- SCM_SETCAR (port, SCM_CAR (port) | SCM_BUFLINE);
+ SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) | SCM_BUFLINE);
cmode = _IOFBF;
}
else
{
- SCM_SETCAR (port, SCM_CAR (port) ^ SCM_BUFLINE);
+ SCM_SET_CELL_WORD_0 (port, SCM_CELL_WORD_0 (port) ^ SCM_BUFLINE);
}
if (SCM_UNBNDP (size))
/* Build a Scheme port from an open file descriptor `fdes'.
MODE indicates whether FILE is open for reading or writing; it uses
the same notation as open-file's second argument.
- Use NAME as the port's filename. */
-
+ NAME is a string to be used as the port's filename.
+*/
SCM
scm_fdes_to_port (int fdes, char *mode, SCM name)
+#define FUNC_NAME "scm_fdes_to_port"
{
long mode_bits = scm_mode_bits (mode);
SCM port;
scm_port *pt;
+ int flags;
+
+ /* test that fdes is valid. */
+ flags = fcntl (fdes, F_GETFL, 0);
+ if (flags == -1)
+ SCM_SYSERROR;
+ flags &= O_ACCMODE;
+ if (flags != O_RDWR
+ && ((flags != O_WRONLY && (mode_bits & SCM_WRTNG))
+ || (flags != O_RDONLY && (mode_bits & SCM_RDNG))))
+ {
+ SCM_MISC_ERROR ("requested file mode not available on fdes", SCM_EOL);
+ }
SCM_NEWCELL (port);
SCM_DEFER_INTS;
pt = scm_add_to_port_table (port);
SCM_SETPTAB_ENTRY (port, pt);
- SCM_SETCAR (port, (scm_tc16_fport | mode_bits));
+ SCM_SET_CELL_TYPE (port, (scm_tc16_fport | mode_bits));
{
struct scm_fport *fp
= (struct scm_fport *) malloc (sizeof (struct scm_fport));
if (fp == NULL)
- scm_memory_error ("scm_fdes_to_port");
+ SCM_MEMORY_ERROR;
fp->fdes = fdes;
pt->rw_random = SCM_FDES_RANDOM_P (fdes);
SCM_SETSTREAM (port, fp);
SCM_ALLOW_INTS;
return port;
}
-
+#undef FUNC_NAME
/* Return a lower bound on the number of bytes available for input. */
static int
{
scm_puts (SCM_PTOBNAME (SCM_PTOBNUM (exp)), port);
scm_putc (' ', port);
- scm_intprint (SCM_CDR (exp), 16, port);
+ scm_intprint (SCM_UNPACK (SCM_CDR (exp)), 16, port);
}
scm_putc ('>', port);
return 1;
}
/* handle line buffering. */
- if ((SCM_CAR (port) & SCM_BUFLINE) && memchr (data, '\n', size))
+ if ((SCM_UNPACK_CAR (port) & SCM_BUFLINE) && memchr (data, '\n', size))
fport_flush (port);
}
}
void
scm_init_fports ()
{
-#include "fports.x"
+#include "libguile/fports.x"
scm_sysintern ("_IOFBF", SCM_MAKINUM (_IOFBF));
scm_sysintern ("_IOLBF", SCM_MAKINUM (_IOLBF));
scm_sysintern ("_IONBF", SCM_MAKINUM (_IONBF));
}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff