glib/gutils.c
Tom Tromey f57c045bd6 Define. New define. (g_bit_nth_msf): Use it. Also, add prototype.
Sat Sep  5 18:03:36 1998  Tom Tromey  <tromey@cygnus.com>

	* gutils.c (GLIB_INLINE): Define.
	* glib.h (GLIB_INLINE): New define.
	(g_bit_nth_msf): Use it.  Also, add prototype.
	(g_bit_storage): Likewise.
	(g_bit_storage): Likewise.
1998-09-06 00:31:48 +00:00

333 lines
6.3 KiB
C

/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include <unistd.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <pwd.h>
#include <sys/types.h>
#include <sys/param.h>
/* When using gcc, we want to have a non-inlined version of the
* `extern inline'd functions in glib.h. We do this here. */
#define GLIB_INLINE
#include "glib.h"
const guint glib_major_version = GLIB_MAJOR_VERSION;
const guint glib_minor_version = GLIB_MINOR_VERSION;
const guint glib_micro_version = GLIB_MICRO_VERSION;
const guint glib_interface_age = GLIB_INTERFACE_AGE;
const guint glib_binary_age = GLIB_BINARY_AGE;
gint
g_snprintf (gchar *str,
gulong n,
gchar const *fmt,
...)
{
#ifdef HAVE_VSNPRINTF
va_list args;
gint retval;
va_start (args, fmt);
retval = vsnprintf (str, n, fmt, args);
va_end (args);
return retval;
#else /* !HAVE_VSNPRINTF */
gchar *printed;
va_list args;
va_start (args, fmt);
printed = g_strdup_vprintf (fmt, args);
va_end (args);
strncpy (str, printed, n);
str[n-1] = '\0';
g_free (printed);
return strlen (str);
#endif /* !HAVE_VSNPRINTF */
}
gint
g_vsnprintf (gchar *str,
gulong n,
gchar const *fmt,
va_list args)
{
#ifdef HAVE_VSNPRINTF
gint retval;
retval = vsnprintf (str, n, fmt, args);
return retval;
#else /* !HAVE_VSNPRINTF */
gchar *printed;
printed = g_strdup_vprintf (fmt, args);
strncpy (str, printed, n);
str[n-1] = '\0';
g_free (printed);
return strlen (str);
#endif /* !HAVE_VSNPRINTF */
}
guint
g_parse_debug_string (const gchar *string,
GDebugKey *keys,
guint nkeys)
{
guint i;
guint result = 0;
g_return_val_if_fail (string != NULL, 0);
if (!g_strcasecmp (string, "all"))
{
for (i=0; i<nkeys; i++)
result |= keys[i].value;
}
else
{
gchar *str = g_strdup (string);
gchar *p = str;
gchar *q;
gboolean done = FALSE;
while (*p && !done)
{
q = strchr (p, ':');
if (!q)
{
q = p + strlen(p);
done = TRUE;
}
*q = 0;
for (i=0; i<nkeys; i++)
if (!g_strcasecmp(keys[i].key, p))
result |= keys[i].value;
p = q+1;
}
g_free (str);
}
return result;
}
gchar*
g_basename (const gchar *file_name)
{
register gchar *base;
g_return_val_if_fail (file_name != NULL, NULL);
base = strrchr (file_name, '/');
if (base)
return base + 1;
return (gchar*) file_name;
}
gchar*
g_dirname (const gchar *file_name)
{
register gchar *base;
register guint len;
g_return_val_if_fail (file_name != NULL, NULL);
base = strrchr (file_name, '/');
if (!base)
return g_strdup (".");
while (base > file_name && *base == '/')
base--;
len = (guint) 1 + base - file_name;
base = g_new (gchar, len + 1);
g_memmove (base, file_name, len);
base[len] = 0;
return base;
}
#ifdef MAXPATHLEN
#define G_PATH_LENGTH (MAXPATHLEN + 1)
#elif defined (PATH_MAX)
#define G_PATH_LENGTH (PATH_MAX + 1)
#else /* !MAXPATHLEN */
#define G_PATH_LENGTH (2048 + 1)
#endif /* !MAXPATHLEN && !PATH_MAX */
gchar*
g_get_current_dir (void)
{
gchar *buffer;
gchar *dir;
buffer = g_new (gchar, G_PATH_LENGTH);
*buffer = 0;
/* We don't use getcwd(3) on SUNOS, because, it does a popen("pwd")
* and, if that wasn't bad enough, hangs in doing so.
*/
#if defined (sun) && !defined (__SVR4)
dir = getwd (buffer);
#else /* !sun */
dir = getcwd (buffer, G_PATH_LENGTH - 1);
#endif /* !sun */
if (!dir || !*buffer)
{
/* hm, should we g_error() out here?
* this can happen if e.g. "./" has mode \0000
*/
buffer[0] = '/';
buffer[1] = 0;
}
dir = g_strdup (buffer);
g_free (buffer);
return dir;
}
static gchar *g_tmp_dir = NULL;
static gchar *g_user_name = NULL;
static gchar *g_real_name = NULL;
static gchar *g_home_dir = NULL;
static void
g_get_any_init (void)
{
if (!g_tmp_dir)
{
struct passwd *pw;
g_tmp_dir = g_strdup (getenv ("TMPDIR"));
if (!g_tmp_dir)
g_tmp_dir = g_strdup (getenv ("TMP"));
if (!g_tmp_dir)
g_tmp_dir = g_strdup (getenv ("TEMP"));
if (!g_tmp_dir)
g_tmp_dir = g_strdup ("/tmp");
g_home_dir = g_strdup (getenv ("HOME"));
setpwent ();
pw = getpwuid (getuid ());
endpwent ();
if (pw)
{
g_user_name = g_strdup (pw->pw_name);
g_real_name = g_strdup (pw->pw_gecos);
if (!g_home_dir)
g_home_dir = g_strdup (pw->pw_dir);
}
}
}
gchar*
g_get_user_name (void)
{
if (!g_tmp_dir)
g_get_any_init ();
return g_user_name;
}
gchar*
g_get_real_name (void)
{
if (!g_tmp_dir)
g_get_any_init ();
return g_real_name;
}
gchar*
g_get_home_dir (void)
{
if (!g_tmp_dir)
g_get_any_init ();
return g_home_dir;
}
gchar*
g_get_tmp_dir (void)
{
if (!g_tmp_dir)
g_get_any_init ();
return g_tmp_dir;
}
static gchar *g_prgname = NULL;
gchar*
g_get_prgname (void)
{
return g_prgname;
}
void
g_set_prgname (const gchar *prgname)
{
gchar *c = g_prgname;
g_prgname = g_strdup (prgname);
g_free (c);
}
guint
g_direct_hash(gconstpointer v)
{
return GPOINTER_TO_UINT (v);
}
gint
g_direct_equal(gconstpointer v, gconstpointer v2)
{
return GPOINTER_TO_UINT (v) == GPOINTER_TO_UINT (v2);
}
gint
g_int_equal (gconstpointer v, gconstpointer v2)
{
return *((const gint*) v) == *((const gint*) v2);
}
guint
g_int_hash (gconstpointer v)
{
return *(const gint*) v;
}