mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-01-11 15:06:14 +01:00
Add an mmap() wrapper called GMappedFile. (#148218, David Schleef, Behdad
2005-06-24 Matthias Clasen <mclasen@redhat.com> Add an mmap() wrapper called GMappedFile. (#148218, David Schleef, Behdad Esfahbod) * glib/gmappedfile.[hc]: New files. * configure.in: Check for mmap. * glib/Makefile.am: Add new files. * glib/glib.symbols: Add new functions. * glib/glib.h: Include gmappedfile.h * tests/mapping-test.c: Tests for GMappedFile. * tests/Makefile.am: Add new file.
This commit is contained in:
Matthias Clasen
Matthias Clasen
parent
132e20bcb6
commit
748c230205
17
ChangeLog
17
ChangeLog
@ -1,5 +1,22 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
Add an mmap() wrapper called GMappedFile. (#148218,
|
||||
David Schleef, Behdad Esfahbod)
|
||||
|
||||
* glib/gmappedfile.[hc]: New files.
|
||||
|
||||
* configure.in: Check for mmap.
|
||||
|
||||
* glib/Makefile.am: Add new files.
|
||||
|
||||
* glib/glib.symbols: Add new functions.
|
||||
|
||||
* glib/glib.h: Include gmappedfile.h
|
||||
|
||||
* tests/mapping-test.c: Tests for GMappedFile.
|
||||
|
||||
* tests/Makefile.am: Add new file.
|
||||
|
||||
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-man.
|
||||
|
||||
2005-06-24 Tor Lillqvist <tml@novell.com>
|
||||
|
||||
@ -1,5 +1,22 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
Add an mmap() wrapper called GMappedFile. (#148218,
|
||||
David Schleef, Behdad Esfahbod)
|
||||
|
||||
* glib/gmappedfile.[hc]: New files.
|
||||
|
||||
* configure.in: Check for mmap.
|
||||
|
||||
* glib/Makefile.am: Add new files.
|
||||
|
||||
* glib/glib.symbols: Add new functions.
|
||||
|
||||
* glib/glib.h: Include gmappedfile.h
|
||||
|
||||
* tests/mapping-test.c: Tests for GMappedFile.
|
||||
|
||||
* tests/Makefile.am: Add new file.
|
||||
|
||||
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-man.
|
||||
|
||||
2005-06-24 Tor Lillqvist <tml@novell.com>
|
||||
|
||||
@ -1,5 +1,22 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
Add an mmap() wrapper called GMappedFile. (#148218,
|
||||
David Schleef, Behdad Esfahbod)
|
||||
|
||||
* glib/gmappedfile.[hc]: New files.
|
||||
|
||||
* configure.in: Check for mmap.
|
||||
|
||||
* glib/Makefile.am: Add new files.
|
||||
|
||||
* glib/glib.symbols: Add new functions.
|
||||
|
||||
* glib/glib.h: Include gmappedfile.h
|
||||
|
||||
* tests/mapping-test.c: Tests for GMappedFile.
|
||||
|
||||
* tests/Makefile.am: Add new file.
|
||||
|
||||
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-man.
|
||||
|
||||
2005-06-24 Tor Lillqvist <tml@novell.com>
|
||||
|
||||
@ -1,5 +1,22 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
Add an mmap() wrapper called GMappedFile. (#148218,
|
||||
David Schleef, Behdad Esfahbod)
|
||||
|
||||
* glib/gmappedfile.[hc]: New files.
|
||||
|
||||
* configure.in: Check for mmap.
|
||||
|
||||
* glib/Makefile.am: Add new files.
|
||||
|
||||
* glib/glib.symbols: Add new functions.
|
||||
|
||||
* glib/glib.h: Include gmappedfile.h
|
||||
|
||||
* tests/mapping-test.c: Tests for GMappedFile.
|
||||
|
||||
* tests/Makefile.am: Add new file.
|
||||
|
||||
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-man.
|
||||
|
||||
2005-06-24 Tor Lillqvist <tml@novell.com>
|
||||
|
||||
@ -501,7 +501,7 @@ AC_HEADER_STDC
|
||||
|
||||
# Checks for library functions.
|
||||
AC_FUNC_VPRINTF
|
||||
|
||||
AC_FUNC_MMAP
|
||||
AC_FUNC_ALLOCA
|
||||
|
||||
AC_CHECK_FUNCS(atexit on_exit)
|
||||
|
||||
@ -1,3 +1,7 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
* glib/glib-sections.txt: Add GMappedFile functions.
|
||||
|
||||
2005-06-18 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
* glib/tmpl/option.sgml (GOptionFlags): document
|
||||
|
||||
@ -993,6 +993,13 @@ g_dir_read_name
|
||||
g_dir_rewind
|
||||
g_dir_close
|
||||
|
||||
<SUBSECTION>
|
||||
GMappedFile
|
||||
g_mapped_file_new
|
||||
g_mapped_file_free
|
||||
g_mapped_file_get_length
|
||||
g_mapped_file_get_contents
|
||||
|
||||
<SUBSECTION>
|
||||
g_open
|
||||
g_rename
|
||||
@ -1008,6 +1015,7 @@ g_chmod
|
||||
g_access
|
||||
g_creat
|
||||
g_chdir
|
||||
|
||||
<SUBSECTION Private>
|
||||
g_file_error_quark
|
||||
</SECTION>
|
||||
|
||||
@ -82,6 +82,7 @@ libglib_2_0_la_SOURCES = \
|
||||
glibintl.h \
|
||||
glist.c \
|
||||
gmain.c \
|
||||
gmappedfile.c \
|
||||
gmarkup.c \
|
||||
gmem.c \
|
||||
gmessages.c \
|
||||
@ -155,6 +156,7 @@ glibsubinclude_HEADERS = \
|
||||
glist.h \
|
||||
gmacros.h \
|
||||
gmain.h \
|
||||
gmappedfile.h \
|
||||
gmarkup.h \
|
||||
gmem.h \
|
||||
gmessages.h \
|
||||
|
||||
@ -47,6 +47,7 @@
|
||||
#include <glib/glist.h>
|
||||
#include <glib/gmacros.h>
|
||||
#include <glib/gmain.h>
|
||||
#include <glib/gmappedfile.h>
|
||||
#include <glib/gmarkup.h>
|
||||
#include <glib/gmem.h>
|
||||
#include <glib/gmessages.h>
|
||||
|
||||
@ -532,6 +532,15 @@ g_timeout_source_new
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if IN_HEADER(__G_MAPPED_FILE_H__)
|
||||
#if IN_FILE(__G_MAPPED_FILE_C__)
|
||||
g_mapped_file_new G_GNUC_MALLOC
|
||||
g_mapped_file_get_length
|
||||
g_mapped_file_get_contents
|
||||
g_mapped_file_free
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if IN_HEADER(__G_MARKUP_H__)
|
||||
#if IN_FILE(__G_MARKUP_C__)
|
||||
g_markup_error_quark
|
||||
|
||||
223
glib/gmappedfile.c
Normal file
223
glib/gmappedfile.c
Normal file
@ -0,0 +1,223 @@
|
||||
/* GLIB - Library of useful routines for C programming
|
||||
* gmappedfile.c: Simplified wrapper around the mmap() function.
|
||||
*
|
||||
* Copyright 2005 Matthias Clasen
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#ifdef HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
#ifdef HAVE_MMAP
|
||||
#include <sys/mman.h>
|
||||
#endif
|
||||
|
||||
|
||||
#include "gconvert.h"
|
||||
#include "gerror.h"
|
||||
#include "gfileutils.h"
|
||||
#include "gmappedfile.h"
|
||||
#include "gmem.h"
|
||||
#include "gmessages.h"
|
||||
#include "gstdio.h"
|
||||
#include "gstrfuncs.h"
|
||||
|
||||
#include "glibintl.h"
|
||||
|
||||
#include "galias.h"
|
||||
|
||||
#ifndef MAP_FAILED
|
||||
#define MAP_FAILED ((void *) -1)
|
||||
#endif
|
||||
|
||||
struct _GMappedFile
|
||||
{
|
||||
gsize length;
|
||||
gchar *contents;
|
||||
};
|
||||
|
||||
/**
|
||||
* g_mapped_file_new:
|
||||
* @filename: The path of the file to load, in the GLib filename encoding
|
||||
* @writable: wether the mapping should be writable
|
||||
* @error: return location for a #GError, or %NULL
|
||||
*
|
||||
* Maps a file into memory. On UNIX, this is using the mmap() function.
|
||||
*
|
||||
* If @writable is %TRUE, the mapped buffer may be modified, otherwise
|
||||
* it is an error to modify the mapped buffer. Modifications to the buffer
|
||||
* are not visible to other processes mapping the same file, and are not
|
||||
* written back to the file.
|
||||
*
|
||||
* Note that modifications of the underlying file might affect the contents
|
||||
* of the #GMappedFile. Therefore, mapping should only be used if the file
|
||||
* will not be modified, or if all modifications of the file are done
|
||||
* atomically (e.g. using g_file_set_contents()).
|
||||
*
|
||||
* Return value: a newly allocated #GMappedFile which must be freed
|
||||
* with g_mapped_file_free(), or %NULL if the mapping failed.
|
||||
*
|
||||
* Since: 2.8
|
||||
*/
|
||||
GMappedFile *
|
||||
g_mapped_file_new (const gchar *filename,
|
||||
gboolean writable,
|
||||
GError **error)
|
||||
{
|
||||
GMappedFile *file;
|
||||
int fd;
|
||||
struct stat st;
|
||||
|
||||
g_return_val_if_fail (filename != NULL, NULL);
|
||||
g_return_val_if_fail (!error || *error == NULL, NULL);
|
||||
|
||||
fd = g_open (filename, writable ? O_RDWR : O_RDONLY);
|
||||
if (fd == -1)
|
||||
{
|
||||
int save_errno = errno;
|
||||
gchar *display_filename = g_filename_display_name (filename);
|
||||
|
||||
g_set_error (error,
|
||||
G_FILE_ERROR,
|
||||
g_file_error_from_errno (save_errno),
|
||||
_("Failed to open file '%s': open() failed: %s"),
|
||||
display_filename,
|
||||
g_strerror (save_errno));
|
||||
g_free (display_filename);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
file = g_new0 (GMappedFile, 1);
|
||||
|
||||
if (fstat (fd, &st) == -1)
|
||||
{
|
||||
int save_errno = errno;
|
||||
gchar *display_filename = g_filename_display_name (filename);
|
||||
|
||||
g_set_error (error,
|
||||
G_FILE_ERROR,
|
||||
g_file_error_from_errno (save_errno),
|
||||
_("Failed to get attributes of file '%s': fstat() failed: %s"),
|
||||
display_filename,
|
||||
g_strerror (save_errno));
|
||||
g_free (display_filename);
|
||||
goto out;
|
||||
}
|
||||
|
||||
file->contents = MAP_FAILED;
|
||||
|
||||
#ifdef HAVE_MMAP
|
||||
file->length = st.st_size;
|
||||
file->contents = (gchar *) mmap (NULL, st.st_size,
|
||||
writable ? PROT_READ|PROT_WRITE : PROT_READ,
|
||||
MAP_PRIVATE, fd, 0);
|
||||
#endif
|
||||
|
||||
if (file->contents == MAP_FAILED)
|
||||
{
|
||||
int save_errno = errno;
|
||||
gchar *display_filename = g_filename_display_name (filename);
|
||||
|
||||
g_set_error (error,
|
||||
G_FILE_ERROR,
|
||||
g_file_error_from_errno (save_errno),
|
||||
_("Failed to map file '%s': mmap() failed: %s"),
|
||||
display_filename,
|
||||
g_strerror (save_errno));
|
||||
g_free (display_filename);
|
||||
goto out;
|
||||
}
|
||||
|
||||
close (fd);
|
||||
return file;
|
||||
|
||||
out:
|
||||
close (fd);
|
||||
g_free (file);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_mapped_file_get_length:
|
||||
* @file: a #GMappedFile
|
||||
*
|
||||
* Returns the length of the contents of a #GMappedFile.
|
||||
*
|
||||
* Returns: the length of the contents of @file.
|
||||
*
|
||||
* Since: 2.8
|
||||
*/
|
||||
gsize
|
||||
g_mapped_file_get_length (GMappedFile *file)
|
||||
{
|
||||
g_return_val_if_fail (file != NULL, 0);
|
||||
|
||||
return file->length;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_mapped_file_get_contents:
|
||||
* @file: a #GMappedFile
|
||||
*
|
||||
* Returns the contents of a #GMappedFile.
|
||||
*
|
||||
* Note that the contents may not be zero-terminated,
|
||||
* even if the #GMappedFile is backed by a text file.
|
||||
*
|
||||
* Returns: the contents of @file.
|
||||
*
|
||||
* Since: 2.8
|
||||
*/
|
||||
gchar *
|
||||
g_mapped_file_get_contents (GMappedFile *file)
|
||||
{
|
||||
g_return_val_if_fail (file != NULL, NULL);
|
||||
|
||||
return file->contents;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_mapped_file_free:
|
||||
* @file: a #GMappedFile
|
||||
*
|
||||
* Unmaps the buffer of @file and frees it.
|
||||
*
|
||||
* For writable, shared mappings, the contents
|
||||
* will be written back to the file at this point.
|
||||
*
|
||||
* Since: 2.8
|
||||
*/
|
||||
void
|
||||
g_mapped_file_free (GMappedFile *file)
|
||||
{
|
||||
g_return_if_fail (file != NULL);
|
||||
|
||||
#ifdef HAVE_MMAP
|
||||
munmap (file->contents, file->length);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
#define __G_MAPPED_FILE_C__
|
||||
#include "galiasdef.c"
|
||||
39
glib/gmappedfile.h
Normal file
39
glib/gmappedfile.h
Normal file
@ -0,0 +1,39 @@
|
||||
/* GLIB - Library of useful routines for C programming
|
||||
* gmappedfile.h: Simplified wrapper around the mmap function
|
||||
*
|
||||
* Copyright 2005 Matthias Clasen
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
#ifndef __G_MAPPED_FILE_H__
|
||||
#define __G_MAPPED_FILE_H__
|
||||
|
||||
#include <glib/gerror.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _GMappedFile GMappedFile;
|
||||
|
||||
GMappedFile *g_mapped_file_new (const gchar *filename,
|
||||
gboolean writable,
|
||||
GError **error) G_GNUC_MALLOC;
|
||||
gsize g_mapped_file_get_length (GMappedFile *file);
|
||||
gchar *g_mapped_file_get_contents (GMappedFile *file);
|
||||
void g_mapped_file_free (GMappedFile *file);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __G_MAPPED_FILE_H__ */
|
||||
@ -1,3 +1,7 @@
|
||||
2005-06-24 Matthias Clasen <mclasen@redhat.com>
|
||||
|
||||
* POTFILES.in: Add gmappedfile.c
|
||||
|
||||
2005-06-22 Abel Cheung <maddog@linuxhall.org>
|
||||
|
||||
* zh_TW.po: Fix language team reference.
|
||||
|
||||
@ -3,6 +3,7 @@ glib/gdir.c
|
||||
glib/gfileutils.c
|
||||
glib/giochannel.c
|
||||
glib/giowin32.c
|
||||
glib/gmappedfile.c
|
||||
glib/gmarkup.c
|
||||
glib/gshell.c
|
||||
glib/gspawn-win32.c
|
||||
|
||||
@ -77,6 +77,7 @@ test_programs = \
|
||||
keyfile-test \
|
||||
list-test \
|
||||
mainloop-test \
|
||||
mapping-test \
|
||||
markup-escape-test \
|
||||
module-test \
|
||||
node-test \
|
||||
@ -133,6 +134,7 @@ keyfile_test_LDADD = $(progs_ldadd)
|
||||
list_test_LDADD = $(progs_ldadd)
|
||||
mainloop_test_LDADD = $(thread_ldadd)
|
||||
markup_test_LDADD = $(progs_ldadd)
|
||||
mapping_test_LDADD = $(progs_ldadd)
|
||||
markup_escape_test_LDADD = $(progs_ldadd)
|
||||
module_test_LDADD = $(module_ldadd) $(module_test_exp)
|
||||
module_test_LDFLAGS = $(G_MODULE_LDFLAGS)
|
||||
|
||||
233
tests/mapping-test.c
Normal file
233
tests/mapping-test.c
Normal file
@ -0,0 +1,233 @@
|
||||
/* GLIB - Library of useful routines for C programming
|
||||
* Copyright (C) 2005 Matthias Clasen
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/types.h>
|
||||
#include <signal.h>
|
||||
|
||||
#include "glib.h"
|
||||
|
||||
static gchar *dir, *filename, *displayname, *childname;
|
||||
|
||||
static gboolean stop = FALSE;
|
||||
|
||||
static void
|
||||
handle_usr1 (int signum)
|
||||
{
|
||||
stop = TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
check_stop (gpointer data)
|
||||
{
|
||||
GMainLoop *loop = data;
|
||||
|
||||
if (stop)
|
||||
g_main_loop_quit (loop);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
write_or_die (const gchar *filename,
|
||||
const gchar *contents,
|
||||
gssize length)
|
||||
{
|
||||
GError *error = NULL;
|
||||
gchar *displayname;
|
||||
|
||||
if (!g_file_set_contents (filename, contents, length, &error))
|
||||
{
|
||||
displayname = g_filename_display_name (childname);
|
||||
g_print ("failed to write '%s': %s\n",
|
||||
displayname, error->message);
|
||||
exit (1);
|
||||
}
|
||||
}
|
||||
|
||||
static GMappedFile *
|
||||
map_or_die (const gchar *filename,
|
||||
gboolean writable)
|
||||
{
|
||||
GError *error = NULL;
|
||||
GMappedFile *map;
|
||||
gchar *displayname;
|
||||
|
||||
map = g_mapped_file_new (filename, writable, &error);
|
||||
if (!map)
|
||||
{
|
||||
displayname = g_filename_display_name (childname);
|
||||
g_print ("failed to map '%s' non-writable, shared: %s\n",
|
||||
displayname, error->message);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
return map;
|
||||
}
|
||||
|
||||
static int
|
||||
child_main (int argc, char *argv[])
|
||||
{
|
||||
GMappedFile *map;
|
||||
GMainLoop *loop;
|
||||
|
||||
map = map_or_die (filename, FALSE);
|
||||
|
||||
loop = g_main_loop_new (NULL, FALSE);
|
||||
|
||||
signal (SIGUSR1, handle_usr1);
|
||||
g_idle_add (check_stop, loop);
|
||||
g_main_loop_run (loop);
|
||||
|
||||
write_or_die (childname,
|
||||
g_mapped_file_get_contents (map),
|
||||
g_mapped_file_get_length (map));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
test_mapping (void)
|
||||
{
|
||||
GMappedFile *map;
|
||||
|
||||
write_or_die (filename, "ABC", -1);
|
||||
|
||||
map = map_or_die (filename, FALSE);
|
||||
g_assert (g_mapped_file_get_length (map) == 3);
|
||||
g_mapped_file_free (map);
|
||||
|
||||
map = map_or_die (filename, TRUE);
|
||||
g_assert (g_mapped_file_get_length (map) == 3);
|
||||
g_mapped_file_free (map);
|
||||
}
|
||||
|
||||
static void
|
||||
test_private (void)
|
||||
{
|
||||
GError *error = NULL;
|
||||
GMappedFile *map;
|
||||
gchar *buffer;
|
||||
gsize len;
|
||||
|
||||
write_or_die (filename, "ABC", -1);
|
||||
map = map_or_die (filename, TRUE);
|
||||
|
||||
buffer = (gchar *)g_mapped_file_get_contents (map);
|
||||
buffer[0] = '1';
|
||||
buffer[1] = '2';
|
||||
buffer[2] = '3';
|
||||
g_mapped_file_free (map);
|
||||
|
||||
if (!g_file_get_contents (filename, &buffer, &len, &error))
|
||||
{
|
||||
g_print ("failed to read '%s': %s\n",
|
||||
displayname, error->message);
|
||||
exit (1);
|
||||
|
||||
}
|
||||
g_assert (len == 3);
|
||||
g_assert (strcmp (buffer, "ABC") == 0);
|
||||
g_free (buffer);
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
test_child_private (gchar *argv0)
|
||||
{
|
||||
GError *error = NULL;
|
||||
GMappedFile *map;
|
||||
gchar *buffer;
|
||||
gsize len;
|
||||
gchar *child_argv[3];
|
||||
GPid child_pid;
|
||||
|
||||
write_or_die (filename, "ABC", -1);
|
||||
map = map_or_die (filename, TRUE);
|
||||
|
||||
child_argv[0] = argv0;
|
||||
child_argv[1] = "mapchild";
|
||||
child_argv[2] = NULL;
|
||||
if (!g_spawn_async (dir, child_argv, NULL,
|
||||
0, NULL, NULL, &child_pid, &error))
|
||||
{
|
||||
g_print ("failed to spawn child: %s\n",
|
||||
error->message);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
/* give the child some time to set up its mapping */
|
||||
sleep (2);
|
||||
|
||||
buffer = (gchar *)g_mapped_file_get_contents (map);
|
||||
buffer[0] = '1';
|
||||
buffer[1] = '2';
|
||||
buffer[2] = '3';
|
||||
g_mapped_file_free (map);
|
||||
|
||||
kill (child_pid, SIGUSR1);
|
||||
|
||||
/* give the child some time to write the file */
|
||||
sleep (2);
|
||||
|
||||
if (!g_file_get_contents (childname, &buffer, &len, &error))
|
||||
{
|
||||
gchar *name;
|
||||
|
||||
name = g_filename_display_name (childname);
|
||||
g_print ("failed to read '%s': %s\n", name, error->message);
|
||||
exit (1);
|
||||
}
|
||||
g_assert (len == 3);
|
||||
g_assert (strcmp (buffer, "ABC") == 0);
|
||||
g_free (buffer);
|
||||
}
|
||||
|
||||
static int
|
||||
parent_main (int argc,
|
||||
char *argv[])
|
||||
{
|
||||
/* test mapping with various flag combinations */
|
||||
test_mapping ();
|
||||
|
||||
/* test private modification */
|
||||
test_private ();
|
||||
|
||||
/* test multiple clients, non-shared */
|
||||
test_child_private (argv[0]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
main (int argc,
|
||||
char *argv[])
|
||||
{
|
||||
dir = g_get_current_dir ();
|
||||
filename = g_build_filename (dir, "maptest", NULL);
|
||||
displayname = g_filename_display_name (filename);
|
||||
childname = g_build_filename (dir, "mapchild", NULL);
|
||||
|
||||
if (argc > 1)
|
||||
return child_main (argc, argv);
|
||||
else
|
||||
return parent_main (argc, argv);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user