/*****************************************************************************
* file.c: file input (file: access plug-in)
*****************************************************************************
- * Copyright (C) 2001-2006 the VideoLAN team
+ * Copyright (C) 2001-2006 VLC authors and VideoLAN
* Copyright © 2006-2007 Rémi Denis-Courmont
* $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
* Rémi Denis-Courmont <rem # videolan # org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program 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 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_input.h>
-#include <vlc_access.h>
-#include <vlc_interface.h>
-
#include <assert.h>
#include <errno.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#ifdef HAVE_FSTATVFS
+# include <sys/statvfs.h>
+# if defined (HAVE_SYS_MOUNT_H)
+# include <sys/param.h>
+# include <sys/mount.h>
+# endif
#endif
-#ifdef HAVE_FCNTL_H
-# include <fcntl.h>
+#ifdef HAVE_LINUX_MAGIC_H
+# include <sys/vfs.h>
+# include <linux/magic.h>
#endif
-#if defined( WIN32 )
+#if defined( _WIN32 )
# include <io.h>
# include <ctype.h>
+# include <shlwapi.h>
#else
# include <unistd.h>
-# include <poll.h>
#endif
+#include <dirent.h>
-#if defined( WIN32 ) && !defined( UNDER_CE )
-# ifdef lseek
-# undef lseek
-# endif
-# define lseek _lseeki64
-#elif defined( UNDER_CE )
-/* FIXME the commandline on wince is a mess */
-# define dup(a) -1
+#include <vlc_common.h>
+#include "fs.h"
+#include <vlc_input.h>
+#include <vlc_access.h>
+#include <vlc_dialog.h>
+#ifdef _WIN32
+# include <vlc_charset.h>
#endif
+#include <vlc_fs.h>
+#include <vlc_url.h>
-#include <vlc_charset.h>
+struct access_sys_t
+{
+ int fd;
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-static int Open ( vlc_object_t * );
-static void Close( vlc_object_t * );
-
-#define CACHING_TEXT N_("Caching value in ms")
-#define CACHING_LONGTEXT N_( \
- "Caching value for files. This " \
- "value should be set in milliseconds." )
-
-vlc_module_begin();
- set_description( N_("File input") );
- set_shortname( N_("File") );
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_ACCESS );
- add_integer( "file-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true );
- add_obsolete_string( "file-cat" );
- set_capability( "access", 50 );
- add_shortcut( "file" );
- add_shortcut( "stream" );
- set_callbacks( Open, Close );
-vlc_module_end();
+ /* */
+ bool b_pace_control;
+};
+
+#if !defined (_WIN32) && !defined (__OS2__)
+static bool IsRemote (int fd)
+{
+#if defined (HAVE_FSTATVFS) && defined (MNT_LOCAL)
+ struct statvfs stf;
+ if (fstatvfs (fd, &stf))
+ return false;
+ /* fstatvfs() is in POSIX, but MNT_LOCAL is not */
+ return !(stf.f_flag & MNT_LOCAL);
-/*****************************************************************************
- * Exported prototypes
- *****************************************************************************/
-static int Seek( access_t *, int64_t );
-static ssize_t Read( access_t *, uint8_t *, size_t );
-static int Control( access_t *, int, va_list );
+#elif defined (HAVE_LINUX_MAGIC_H)
+ struct statfs stf;
-static int open_file( access_t *, const char * );
+ if (fstatfs (fd, &stf))
+ return false;
-struct access_sys_t
+ switch ((unsigned long)stf.f_type)
+ {
+ case AFS_SUPER_MAGIC:
+ case CODA_SUPER_MAGIC:
+ case NCP_SUPER_MAGIC:
+ case NFS_SUPER_MAGIC:
+ case SMB_SUPER_MAGIC:
+ case 0xFF534D42 /*CIFS_MAGIC_NUMBER*/:
+ return true;
+ }
+ return false;
+
+#else
+ (void)fd;
+ return false;
+
+#endif
+}
+# define IsRemote(fd,path) IsRemote(fd)
+
+#else /* _WIN32 || __OS2__ */
+static bool IsRemote (const char *path)
{
- unsigned int i_nb_reads;
+# if !defined(__OS2__) && !VLC_WINSTORE_APP
+ wchar_t *wpath = ToWide (path);
+ bool is_remote = (wpath != NULL && PathIsNetworkPathW (wpath));
+ free (wpath);
+ return is_remote;
+# else
+ return (! strncmp(path, "\\\\", 2));
+# endif
+}
+# define IsRemote(fd,path) IsRemote(path)
+#endif
- int fd;
+#ifndef HAVE_POSIX_FADVISE
+# define posix_fadvise(fd, off, len, adv)
+#endif
- /* */
- bool b_seekable;
- bool b_pace_control;
-};
+static ssize_t FileRead (access_t *, uint8_t *, size_t);
+static int FileSeek (access_t *, uint64_t);
+static ssize_t StreamRead (access_t *, uint8_t *, size_t);
+static int NoSeek (access_t *, uint64_t);
+static int FileControl (access_t *, int, va_list);
/*****************************************************************************
- * Open: open the file
+ * FileOpen: open the file
*****************************************************************************/
-static int Open( vlc_object_t *p_this )
+int FileOpen( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
- access_sys_t *p_sys;
- bool b_stdin = !strcmp (p_access->psz_path, "-");
-
- /* Update default_pts to a suitable value for file access */
- var_Create( p_access, "file-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
-
- STANDARD_READ_ACCESS_INIT;
- p_sys->i_nb_reads = 0;
- int fd = p_sys->fd = -1;
+ /* Open file */
+ int fd = -1;
- if (!strcasecmp (p_access->psz_access, "stream"))
+ if (!strcasecmp (p_access->psz_access, "fd"))
{
- p_sys->b_seekable = false;
- p_sys->b_pace_control = false;
+ char *end;
+ int oldfd = strtol (p_access->psz_location, &end, 10);
+
+ if (*end == '\0')
+ fd = vlc_dup (oldfd);
+ else if (*end == '/' && end > p_access->psz_location)
+ {
+ char *name = decode_URI_duplicate (end - 1);
+ if (name != NULL)
+ {
+ name[0] = '.';
+ fd = vlc_openat (oldfd, name, O_RDONLY | O_NONBLOCK);
+ free (name);
+ }
+ }
}
else
{
- p_sys->b_seekable = true;
- p_sys->b_pace_control = true;
- }
+ const char *path = p_access->psz_filepath;
- /* Open file */
- msg_Dbg (p_access, "opening file `%s'", p_access->psz_path);
-
- if (b_stdin)
- fd = dup (0);
- else
- fd = open_file (p_access, p_access->psz_path);
+ if (unlikely(path == NULL))
+ return VLC_EGENERIC;
+ msg_Dbg (p_access, "opening file `%s'", path);
+ fd = vlc_open (path, O_RDONLY | O_NONBLOCK);
+ if (fd == -1)
+ {
+ msg_Err (p_access, "cannot open file %s (%m)", path);
+ dialog_Fatal (p_access, _("File reading failed"),
+ _("VLC could not open the file \"%s\" (%m)."), path);
+ }
+ }
+ if (fd == -1)
+ return VLC_EGENERIC;
-#ifdef HAVE_SYS_STAT_H
struct stat st;
-
- while (fd != -1)
+ if (fstat (fd, &st))
{
- if (fstat (fd, &st))
- msg_Err (p_access, "fstat(%d): %m", fd);
- else
- if (S_ISDIR (st.st_mode))
- /* The directory plugin takes care of that */
- msg_Dbg (p_access, "file is a directory, aborting");
- else
- break; // success
-
- close (fd);
- fd = -1;
+ msg_Err (p_access, "failed to read (%m)");
+ goto error;
}
+
+#if O_NONBLOCK
+ int flags = fcntl (fd, F_GETFL);
+ if (S_ISFIFO (st.st_mode) || S_ISSOCK (st.st_mode))
+ /* Force non-blocking mode where applicable (fd://) */
+ flags |= O_NONBLOCK;
+ else
+ /* Force blocking mode when not useful or not specified */
+ flags &= ~O_NONBLOCK;
+ fcntl (fd, F_SETFL, flags);
#endif
- if (fd == -1)
+ /* Directories can be opened and read from, but only readdir() knows
+ * how to parse the data. The directory plugin will do it. */
+ if (S_ISDIR (st.st_mode))
{
- free (p_sys);
- return VLC_EGENERIC;
+#ifdef HAVE_FDOPENDIR
+ DIR *handle = fdopendir (fd);
+ if (handle == NULL)
+ goto error; /* Uh? */
+ return DirInit (p_access, handle);
+#else
+ msg_Dbg (p_access, "ignoring directory");
+ goto error;
+#endif
}
+
+ access_sys_t *p_sys = malloc (sizeof (*p_sys));
+ if (unlikely(p_sys == NULL))
+ goto error;
+ access_InitFields (p_access);
+ p_access->pf_block = NULL;
+ p_access->pf_control = FileControl;
+ p_access->p_sys = p_sys;
p_sys->fd = fd;
-#ifdef HAVE_SYS_STAT_H
- p_access->info.i_size = st.st_size;
- if (!S_ISREG (st.st_mode))
- p_sys->b_seekable = false;
-#else
- p_sys->b_seekable = !b_stdin;
-# warning File size not known!
+ if (S_ISREG (st.st_mode) || S_ISBLK (st.st_mode))
+ {
+ p_access->pf_read = FileRead;
+ p_access->pf_seek = FileSeek;
+ p_access->info.i_size = st.st_size;
+ p_sys->b_pace_control = true;
+
+ /* Demuxers will need the beginning of the file for probing. */
+ posix_fadvise (fd, 0, 4096, POSIX_FADV_WILLNEED);
+ /* In most cases, we only read the file once. */
+ posix_fadvise (fd, 0, 0, POSIX_FADV_NOREUSE);
+#ifdef F_RDAHEAD
+ fcntl (fd, F_RDAHEAD, 1);
+#endif
+#ifdef F_NOCACHE
+ fcntl (fd, F_NOCACHE, 0);
#endif
+ }
+ else
+ {
+ p_access->pf_read = StreamRead;
+ p_access->pf_seek = NoSeek;
+ p_sys->b_pace_control = strcasecmp (p_access->psz_access, "stream");
+ }
return VLC_SUCCESS;
+
+error:
+ close (fd);
+ return VLC_EGENERIC;
}
/*****************************************************************************
- * Close: close the target
+ * FileClose: close the target
*****************************************************************************/
-static void Close (vlc_object_t * p_this)
+void FileClose (vlc_object_t * p_this)
{
access_t *p_access = (access_t*)p_this;
+
+ if (p_access->pf_read == NULL)
+ {
+ DirClose (p_this);
+ return;
+ }
+
access_sys_t *p_sys = p_access->p_sys;
close (p_sys->fd);
#include <vlc_network.h>
-/*****************************************************************************
- * Read: standard read on a file descriptor.
- *****************************************************************************/
-static ssize_t Read( access_t *p_access, uint8_t *p_buffer, size_t i_len )
+/**
+ * Reads from a regular file.
+ */
+static ssize_t FileRead (access_t *p_access, uint8_t *p_buffer, size_t i_len)
{
access_sys_t *p_sys = p_access->p_sys;
int fd = p_sys->fd;
- ssize_t i_ret;
-
-#ifndef WIN32
- i_ret = net_Read (p_access, fd, NULL, p_buffer, i_len, false);
-#else
- i_ret = read (fd, p_buffer, i_len);
-#endif
+ ssize_t val = read (fd, p_buffer, i_len);
- if( i_ret < 0 )
+ if (val < 0)
{
switch (errno)
{
case EINTR:
case EAGAIN:
- break;
-
- default:
- msg_Err (p_access, "read failed (%m)");
- intf_UserFatal (p_access, false, _("File reading failed"),
- _("VLC could not read the file."));
- return 0;
+ return -1;
}
- }
- else if( i_ret > 0 )
- p_access->info.i_pos += i_ret;
- else if( i_ret == 0 )
- p_access->info.b_eof = true;
- p_sys->i_nb_reads++;
+ msg_Err (p_access, "read error: %m");
+ dialog_Fatal (p_access, _("File reading failed"),
+ _("VLC could not read the file (%m)."));
+ val = 0;
+ }
-#ifdef HAVE_SYS_STAT_H
- if( p_access->info.i_size != 0 &&
- (p_sys->i_nb_reads % INPUT_FSTAT_NB_READS) == 0 )
+ p_access->info.i_pos += val;
+ p_access->info.b_eof = !val;
+ if (p_access->info.i_pos >= p_access->info.i_size)
{
struct stat st;
- if ((fstat (fd, &st) == 0)
- && (p_access->info.i_size != st.st_size))
- {
+ if (fstat (fd, &st) == 0)
p_access->info.i_size = st.st_size;
- p_access->info.i_update |= INPUT_UPDATE_SIZE;
- }
}
-#endif
- return i_ret;
+ return val;
}
/*****************************************************************************
* Seek: seek to a specific location in a file
*****************************************************************************/
-static int Seek (access_t *p_access, int64_t i_pos)
+static int FileSeek (access_t *p_access, uint64_t i_pos)
{
p_access->info.i_pos = i_pos;
p_access->info.b_eof = false;
return VLC_SUCCESS;
}
+/**
+ * Reads from a non-seekable file.
+ */
+static ssize_t StreamRead (access_t *p_access, uint8_t *p_buffer, size_t i_len)
+{
+ access_sys_t *p_sys = p_access->p_sys;
+ int fd = p_sys->fd;
+
+#if !defined (_WIN32) && !defined (__OS2__)
+ ssize_t val = net_Read (p_access, fd, NULL, p_buffer, i_len, false);
+#else
+ ssize_t val = read (fd, p_buffer, i_len);
+#endif
+
+ if (val < 0)
+ {
+ switch (errno)
+ {
+ case EINTR:
+ case EAGAIN:
+ return -1;
+ }
+ msg_Err (p_access, "read error: %m");
+ val = 0;
+ }
+
+ p_access->info.i_pos += val;
+ p_access->info.b_eof = !val;
+ return val;
+}
+
+static int NoSeek (access_t *p_access, uint64_t i_pos)
+{
+ /* assert(0); ?? */
+ (void) p_access; (void) i_pos;
+ return VLC_EGENERIC;
+}
+
/*****************************************************************************
* Control:
*****************************************************************************/
-static int Control( access_t *p_access, int i_query, va_list args )
+static int FileControl( access_t *p_access, int i_query, va_list args )
{
access_sys_t *p_sys = p_access->p_sys;
- bool *pb_bool;
- int *pi_int;
- int64_t *pi_64;
+ bool *pb_bool;
+ int64_t *pi_64;
switch( i_query )
{
case ACCESS_CAN_SEEK:
case ACCESS_CAN_FASTSEEK:
pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = p_sys->b_seekable;
+ *pb_bool = (p_access->pf_seek != NoSeek);
break;
case ACCESS_CAN_PAUSE:
break;
/* */
- case ACCESS_GET_MTU:
- pi_int = (int*)va_arg( args, int * );
- *pi_int = 0;
- break;
-
case ACCESS_GET_PTS_DELAY:
pi_64 = (int64_t*)va_arg( args, int64_t * );
- *pi_64 = var_GetInteger( p_access, "file-caching" ) * INT64_C(1000);
+ if (IsRemote (p_sys->fd, p_access->psz_filepath))
+ *pi_64 = var_InheritInteger (p_access, "network-caching");
+ else
+ *pi_64 = var_InheritInteger (p_access, "file-caching");
+ *pi_64 *= 1000;
break;
/* */
}
return VLC_SUCCESS;
}
-
-/*****************************************************************************
- * open_file: Opens a specific file
- *****************************************************************************/
-static int open_file (access_t *p_access, const char *path)
-{
-#if defined(WIN32)
- if (!strcasecmp (p_access->psz_access, "file")
- && ('/' == path[0]) && isalpha (path[1])
- && (':' == path[2]) && ('/' == path[3]))
- /* Explorer can open path such as file:/C:/ or file:///C:/
- * hence remove leading / if found */
- path++;
-#endif
-
- int fd = utf8_open (path, O_RDONLY | O_NONBLOCK /* O_LARGEFILE*/, 0666);
- if (fd == -1)
- {
- msg_Err (p_access, "cannot open file %s (%m)", path);
- intf_UserFatal (p_access, false, _("File reading failed"),
- _("VLC could not open the file \"%s\"."), path);
- return -1;
- }
-
-#if defined(HAVE_FCNTL)
- fcntl (fd, F_SETFD, fcntl (fd, F_GETFD) | FD_CLOEXEC);
-
- /* We'd rather use any available memory for reading ahead
- * than for caching what we've already seen/heard */
-# if defined(F_RDAHEAD)
- fcntl (fd, F_RDAHEAD, 1);
-# endif
-# if defined(F_NOCACHE)
- fcntl (fd, F_NOCACHE, 1);
-# endif
-#endif
-
- return fd;
-}
projects / vlc / blobdiff