X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Faccess%2Ffile.c;h=cdf51accde8e2e351015778adc852e98fe84a228;hb=943b5ccc082784273bc21baa216527a605fc8e04;hp=58aecfb8e91f46690c18b6f51d7691771bc91c69;hpb=378c8bedf2595b2fdc7f42f0550c7016099ea139;p=vlc diff --git a/modules/access/file.c b/modules/access/file.c index 58aecfb8e9..cdf51accde 100644 --- a/modules/access/file.c +++ b/modules/access/file.c @@ -2,7 +2,7 @@ * file.c: file input (file: access plug-in) ***************************************************************************** * Copyright (C) 2001-2006 the VideoLAN team - * Copyright © 2006 Rémi Denis-Courmont + * Copyright © 2006-2007 Rémi Denis-Courmont * $Id$ * * Authors: Christophe Massiot @@ -26,12 +26,17 @@ /***************************************************************************** * Preamble *****************************************************************************/ -#include -#include -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include +#include +#include +#include +#include -#include -#include +#include #include #ifdef HAVE_SYS_TYPES_H # include @@ -45,14 +50,13 @@ #if defined( WIN32 ) && !defined( UNDER_CE ) # include +# include #else # include # include #endif #if defined( WIN32 ) && !defined( UNDER_CE ) -/* fstat() support for large files on win32 */ -# define fstat(a,b) _fstati64(a,b) # ifdef lseek # undef lseek # endif @@ -69,7 +73,7 @@ # define lseek fseek #endif -#include "charset.h" +#include /***************************************************************************** * Module descriptor @@ -81,22 +85,17 @@ static void Close( vlc_object_t * ); #define CACHING_LONGTEXT N_( \ "Caching value for files. This " \ "value should be set in milliseconds." ) -#define CAT_TEXT N_("Concatenate with additional files") -#define CAT_LONGTEXT N_( \ - "Play split files as if they were part of a unique file. " \ - "You need to specify a comma-separated list of files." ) vlc_module_begin(); - set_description( _("File input") ); - set_shortname( _("File") ); + 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, VLC_TRUE ); - add_deprecated( "file-cat", VLC_TRUE ); - set_capability( "access2", 50 ); + 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" ); - add_shortcut( "kfir" ); set_callbacks( Open, Close ); vlc_module_end(); @@ -105,7 +104,7 @@ vlc_module_end(); * Exported prototypes *****************************************************************************/ static int Seek( access_t *, int64_t ); -static int Read( access_t *, uint8_t *, int ); +static ssize_t Read( access_t *, uint8_t *, size_t ); static int Control( access_t *, int, va_list ); static int open_file( access_t *, const char * ); @@ -113,13 +112,12 @@ static int open_file( access_t *, const char * ); struct access_sys_t { unsigned int i_nb_reads; - vlc_bool_t b_kfir; int fd; /* */ - vlc_bool_t b_seekable; - vlc_bool_t b_pace_control; + bool b_seekable; + bool b_pace_control; }; /***************************************************************************** @@ -130,31 +128,24 @@ static int Open( vlc_object_t *p_this ) access_t *p_access = (access_t*)p_this; access_sys_t *p_sys; - vlc_bool_t b_stdin = !strcmp (p_access->psz_path, "-"); + 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; - p_sys->b_kfir = VLC_FALSE; int fd = p_sys->fd = -1; if (!strcasecmp (p_access->psz_access, "stream")) { - p_sys->b_seekable = VLC_FALSE; - p_sys->b_pace_control = VLC_FALSE; - } - else if (!strcasecmp (p_access->psz_access, "kfir")) - { - p_sys->b_seekable = VLC_FALSE; - p_sys->b_pace_control = VLC_FALSE; - p_sys->b_kfir = VLC_TRUE; + p_sys->b_seekable = false; + p_sys->b_pace_control = false; } else { - p_sys->b_seekable = VLC_TRUE; - p_sys->b_pace_control = VLC_TRUE; + p_sys->b_seekable = true; + p_sys->b_pace_control = true; } /* Open file */ @@ -171,7 +162,7 @@ static int Open( vlc_object_t *p_this ) while (fd != -1) { if (fstat (fd, &st)) - msg_Err (p_access, "fstat(%d): %s", fd, strerror (errno)); + msg_Err (p_access, "fstat(%d): %m", fd); else if (S_ISDIR (st.st_mode)) /* The directory plugin takes care of that */ @@ -193,24 +184,13 @@ static int Open( vlc_object_t *p_this ) #ifdef HAVE_SYS_STAT_H p_access->info.i_size = st.st_size; - if (!S_ISREG (st.st_mode) && !S_ISBLK (st.st_mode) - && (!S_ISCHR (st.st_mode) || (st.st_size == 0))) - p_sys->b_seekable = VLC_FALSE; + if (!S_ISREG (st.st_mode)) + p_sys->b_seekable = false; #else p_sys->b_seekable = !b_stdin; # warning File size not known! #endif - if (p_sys->b_seekable && (p_access->info.i_size == 0)) - { - /* FIXME that's bad because all others access will be probed */ - msg_Err (p_access, "file is empty, aborting"); - Close (p_this); - return VLC_EGENERIC; - } - msg_Dbg (p_access, "opened file of size "I64Fd" (FIXME: remove this)", - p_access->info.i_size); - return VLC_SUCCESS; } @@ -229,50 +209,30 @@ static void Close (vlc_object_t * p_this) /***************************************************************************** * Read: standard read on a file descriptor. *****************************************************************************/ -static int Read( access_t *p_access, uint8_t *p_buffer, int i_len ) +static ssize_t Read( access_t *p_access, uint8_t *p_buffer, size_t i_len ) { access_sys_t *p_sys = p_access->p_sys; - int i_ret; + ssize_t i_ret; int fd = p_sys->fd; #if !defined(WIN32) && !defined(UNDER_CE) - if( !p_sys->b_pace_control ) + if( !p_sys->b_seekable ) { - if( !p_sys->b_kfir ) - { - /* Find if some data is available. This won't work under Windows. */ - do - { - struct pollfd ufd; - - if( p_access->b_die ) - return 0; - - memset (&ufd, 0, sizeof (ufd)); - ufd.fd = fd; - ufd.events = POLLIN; - - i_ret = poll (&ufd, 1, 500); - } - while (i_ret <= 0); - - i_ret = read (fd, p_buffer, i_len); - } - else - { - /* b_kfir ; work around a buggy poll() driver implementation */ - while (((i_ret = read (fd, p_buffer, i_len)) == 0) - && !p_access->b_die) - { - msleep( INPUT_ERROR_SLEEP ); - } - } + /* Note that POSIX regular files (b_seekable) opened for read are + * guaranteed to always set POLLIN immediately, so we can spare + * poll()ing them. */ + /* Wait until some data is available. Impossible on Windows. */ + struct pollfd ufd[2] = { + { .fd = fd, .events = POLLIN, }, + { .fd = vlc_object_waitpipe (p_access), .events = POLLIN, }, + }; + + if (poll (ufd, 2, -1) < 0 || ufd[1].revents) + return -1; } - else #endif /* WIN32 || UNDER_CE */ - /* b_pace_control || WIN32 */ - i_ret = read( fd, p_buffer, i_len ); + i_ret = read (fd, p_buffer, i_len); if( i_ret < 0 ) { switch (errno) @@ -282,16 +242,15 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len ) break; default: - msg_Err (p_access, "read failed (%s)", strerror (errno)); - intf_UserFatal (p_access, VLC_FALSE, _("File reading failed"), - _("VLC could not read file \"%s\"."), - strerror (errno)); + msg_Err (p_access, "read failed (%m)"); + intf_UserFatal (p_access, false, _("File reading failed"), + _("VLC could not read the file.")); } - - /* Delay a bit to avoid consuming all the CPU. This is particularly - * useful when reading from an unconnected FIFO. */ - msleep( INPUT_ERROR_SLEEP ); } + 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++; @@ -309,35 +268,18 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len ) } } #endif - - if( i_ret > 0 ) - p_access->info.i_pos += i_ret; - else if( i_ret == 0 ) - p_access->info.b_eof = VLC_TRUE; - return i_ret; } + /***************************************************************************** * Seek: seek to a specific location in a file *****************************************************************************/ static int Seek (access_t *p_access, int64_t i_pos) { - if (i_pos > p_access->info.i_size) - { - msg_Err (p_access, "seeking too far"); - i_pos = p_access->info.i_size; - } - else if (i_pos < 0) - { - msg_Err (p_access, "seeking too early"); - i_pos = 0; - } - p_access->info.i_pos = i_pos; - p_access->info.b_eof = VLC_FALSE; + p_access->info.b_eof = false; - /* Determine which file we need to access */ lseek (p_access->p_sys->fd, i_pos, SEEK_SET); return VLC_SUCCESS; } @@ -348,7 +290,7 @@ static int Seek (access_t *p_access, int64_t i_pos) static int Control( access_t *p_access, int i_query, va_list args ) { access_sys_t *p_sys = p_access->p_sys; - vlc_bool_t *pb_bool; + bool *pb_bool; int *pi_int; int64_t *pi_64; @@ -357,13 +299,13 @@ static int Control( access_t *p_access, int i_query, va_list args ) /* */ case ACCESS_CAN_SEEK: case ACCESS_CAN_FASTSEEK: - pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* ); + pb_bool = (bool*)va_arg( args, bool* ); *pb_bool = p_sys->b_seekable; break; case ACCESS_CAN_PAUSE: case ACCESS_CAN_CONTROL_PACE: - pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* ); + pb_bool = (bool*)va_arg( args, bool* ); *pb_bool = p_sys->b_pace_control; break; @@ -375,7 +317,7 @@ static int Control( access_t *p_access, int i_query, va_list args ) case ACCESS_GET_PTS_DELAY: pi_64 = (int64_t*)va_arg( args, int64_t * ); - *pi_64 = var_GetInteger( p_access, "file-caching" ) * I64C(1000); + *pi_64 = var_GetInteger( p_access, "file-caching" ) * INT64_C(1000); break; /* */ @@ -388,56 +330,39 @@ static int Control( access_t *p_access, int i_query, va_list args ) case ACCESS_SET_SEEKPOINT: case ACCESS_SET_PRIVATE_ID_STATE: case ACCESS_GET_META: + case ACCESS_GET_PRIVATE_ID_STATE: + case ACCESS_GET_CONTENT_TYPE: return VLC_EGENERIC; default: - msg_Warn( p_access, "unimplemented query in control" ); + msg_Warn( p_access, "unimplemented query %d in control", i_query ); return VLC_EGENERIC; } return VLC_SUCCESS; } - -static char *expand_path (const access_t *p_access, const char *path) -{ - if (strncmp (path, "~/", 2) == 0) - { - char *res; - - // TODO: we should also support the ~cmassiot/ syntax - if (asprintf (&res, "%s/%s", p_access->p_libvlc->psz_homedir, path + 2) == -1) - return NULL; - return res; - } - -#if defined(WIN32) - if (!strcasecmp (p_access->psz_access, "file") - && ('/' == path[0]) && path[1] && (':' == path[2]) && ('/' == path[3])) - // Explorer can open path such as file:/C:/ or file:///C:/ - // hence remove leading / if found - return strdup (path + 1); -#endif - - return strdup (path); -} - - /***************************************************************************** * open_file: Opens a specific file *****************************************************************************/ -static int open_file (access_t *p_access, const char *psz_name) +static int open_file (access_t *p_access, const char *path) { - char *path = expand_path (p_access, psz_name); +#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 #ifdef UNDER_CE p_sys->fd = utf8_fopen( path, "rb" ); if ( !p_sys->fd ) { - msg_Err( p_access, "cannot open file %s", psz_name ); - intf_UserFatal( p_access, VLC_FALSE, _("File reading failed"), - _("VLC could not open file \"%s\"."), psz_name ); - free (path); + msg_Err( p_access, "cannot open file %s", path ); + intf_UserFatal( p_access, false, _("File reading failed"), + _("VLC could not open the file \"%s\"."), path ); return VLC_EGENERIC; } @@ -449,11 +374,9 @@ static int open_file (access_t *p_access, const char *psz_name) int fd = utf8_open (path, O_RDONLY | O_NONBLOCK /* O_LARGEFILE*/, 0666); if (fd == -1) { - msg_Err (p_access, "cannot open file %s (%s)", psz_name, - strerror (errno)); - intf_UserFatal (p_access, VLC_FALSE, _("File reading failed"), - _("VLC could not open file \"%s\" (%s)."), - psz_name, strerror (errno)); + 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; }