Use (s)size_t for pf_read and pf_write.

This is very likely to break .*64 platforms.

Use (s)size_t for pf_read and pf_write.
This is very likely to break .*64 platforms.
6b822f38 · Rémi Denis-Courmont · 2d40161c · 6b822f38 · 6b822f38 · 6b822f38
Commit 6b822f38 authored Dec 09, 2007 by Rémi Denis-Courmont
--- a/include/vlc_access.h
+++ b/include/vlc_access.h
@@ -88,7 +88,7 @@ struct access_t

    /* pf_read/pf_block is used to read data.
     * XXX A access should set one and only one of them */
-    int         (*pf_read) ( access_t *, uint8_t *, int );  /* Return -1 if no data yet, 0 if no more data, else real data read */
+    ssize_t     (*pf_read) ( access_t *, uint8_t *, size_t );  /* Return -1 if no data yet, 0 if no more data, else real data read */
    block_t    *(*pf_block)( access_t * );                  /* return a block of data in his 'natural' size, NULL if not yet data or eof */

    /* Called for each seek.

--- a/include/vlc_sout.h
+++ b/include/vlc_sout.h
@@ -93,8 +93,8 @@ struct sout_access_out_t
    char                    *psz_path;
    sout_access_out_sys_t   *p_sys;
    int                     (*pf_seek)( sout_access_out_t *, off_t );
-    int                     (*pf_read)( sout_access_out_t *, block_t * );
-    int                     (*pf_write)( sout_access_out_t *, block_t * );
+    ssize_t                 (*pf_read)( sout_access_out_t *, block_t * );
+    ssize_t                 (*pf_write)( sout_access_out_t *, block_t * );
    int                     (*pf_control)( sout_access_out_t *, int, va_list);

    config_chain_t              *p_cfg;
@@ -104,8 +104,8 @@ struct sout_access_out_t
 VLC_EXPORT( sout_access_out_t *,sout_AccessOutNew, ( sout_instance_t *, const char *psz_access, const char *psz_name ) );
 VLC_EXPORT( void,               sout_AccessOutDelete, ( sout_access_out_t * ) );
 VLC_EXPORT( int,                sout_AccessOutSeek,   ( sout_access_out_t *, off_t ) );
-VLC_EXPORT( int,                sout_AccessOutRead,   ( sout_access_out_t *, block_t * ) );
-VLC_EXPORT( int,                sout_AccessOutWrite,  ( sout_access_out_t *, block_t * ) );
+VLC_EXPORT( ssize_t,            sout_AccessOutRead,   ( sout_access_out_t *, block_t * ) );
+VLC_EXPORT( ssize_t,            sout_AccessOutWrite,  ( sout_access_out_t *, block_t * ) );
 VLC_EXPORT( int,                sout_AccessOutControl,( sout_access_out_t *, int, va_list ) );

 /** Muxer structure */

--- a/modules/access/cdda/access.c
+++ b/modules/access/cdda/access.c
@@ -55,7 +55,7 @@ access_t *p_cdda_input = NULL;
 /*****************************************************************************
 * Local prototypes
 *****************************************************************************/
-static int      CDDARead( access_t *, uint8_t *, int );
+static ssize_t  CDDARead( access_t *, uint8_t *, size_t );
 static block_t *CDDAReadBlocks( access_t * p_access );
 static int      CDDASeek( access_t * p_access, int64_t i_pos );
 static int      CDDAControl( access_t *p_access, int i_query,

--- a/modules/access/directory.c
+++ b/modules/access/directory.c
@@ -121,8 +121,8 @@ enum

 typedef struct stat_list_t stat_list_t;

-static int Read( access_t *, uint8_t *, int );
-static int ReadNull( access_t *, uint8_t *, int );
+static ssize_t Read( access_t *, uint8_t *, size_t );
+static ssize_t ReadNull( access_t *, uint8_t *, size_t );
 static int Control( access_t *, int, va_list );

 static int Demux( demux_t *p_demux );
@@ -172,7 +172,7 @@ static void Close( vlc_object_t * p_this )
 /*****************************************************************************
 * ReadNull: read the directory
 *****************************************************************************/
-static int ReadNull( access_t *p_access, uint8_t *p_buffer, int i_len)
+static ssize_t ReadNull( access_t *p_access, uint8_t *p_buffer, size_t i_len)
 {
    /* Return fake data */
    memset( p_buffer, 0, i_len );
@@ -182,7 +182,7 @@ static int ReadNull( access_t *p_access, uint8_t *p_buffer, int i_len)
 /*****************************************************************************
 * Read: read the directory
 *****************************************************************************/
-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)
 {
    char               *psz;
    int                 i_mode, i_activity;
@@ -261,7 +261,7 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len)

    /* Return fake data forever */
    p_access->pf_read = ReadNull;
-    return ReadNull( p_access, p_buffer, i_len );
+    return -1;
 }

 /*****************************************************************************

--- a/modules/access/eyetv.c
+++ b/modules/access/eyetv.c
@@ -72,7 +72,7 @@ CFDataRef dataFromEyetv;
 int lastPacketId;
 int lastForwardedPacketId;

-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 void Thread( vlc_object_t * );
 CFDataRef msgPortCallback( CFMessagePortRef local, SInt32 msgid, CFDataRef data, void *info );
@@ -240,7 +240,7 @@ CFDataRef msgPortCallback( CFMessagePortRef local, SInt32 msgid, CFDataRef data,
 /*****************************************************************************
 * Read: forwarding data from EyeTV plugin which was received above
 *****************************************************************************/
-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;
    extern CFDataRef dataFromEyetv;

--- a/modules/access/file.c
+++ b/modules/access/file.c
@@ -106,7 +106,7 @@ 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 block_t *mmapBlock( access_t * );

@@ -249,7 +249,7 @@ 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;

--- a/modules/access/ftp.c
+++ b/modules/access/ftp.c
@@ -92,8 +92,8 @@ vlc_module_end();
 /*****************************************************************************
 * Local prototypes
 *****************************************************************************/
-static int Read( access_t *, uint8_t *, int );
-static int Write( sout_access_out_t *, block_t * );
+static ssize_t Read( access_t *, uint8_t *, size_t );
+static ssize_t Write( sout_access_out_t *, block_t * );
 static int Seek( access_t *, int64_t );
 static int OutSeek( sout_access_out_t *, int64_t );
 static int Control( access_t *, int, va_list );
@@ -461,7 +461,7 @@ static int OutSeek( sout_access_out_t *p_access, off_t i_pos )
 /*****************************************************************************
 * Read:
 *****************************************************************************/
-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_read;
@@ -485,7 +485,7 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
 /*****************************************************************************
 * Write:
 *****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 {
    access_sys_t *p_sys = GET_OUT_SYS(p_access);
    size_t i_write = 0;

--- a/modules/access/http.c
+++ b/modules/access/http.c
@@ -143,7 +143,7 @@ struct access_sys_t
 };

 /* */
-static int Read( access_t *, uint8_t *, int );
+static ssize_t Read( access_t *, uint8_t *, size_t );
 static int Seek( access_t *, int64_t );
 static int Control( access_t *, int, va_list );

@@ -459,7 +459,7 @@ static void Close( vlc_object_t *p_this )
 * p_buffer. Return the actual number of bytes read
 *****************************************************************************/
 static int ReadICYMeta( access_t *p_access );
-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_read;

--- a/modules/access/mms/mmsh.c
+++ b/modules/access/mms/mmsh.c
@@ -48,8 +48,8 @@
 int  E_(MMSHOpen)  ( access_t * );
 void E_(MMSHClose) ( access_t * );

-static int  Read( access_t *, uint8_t *, int );
-static int  ReadRedirect( access_t *, uint8_t *, int );
+static ssize_t Read( access_t *, uint8_t *, size_t );
+static ssize_t ReadRedirect( access_t *, uint8_t *, size_t );
 static int  Seek( access_t *, int64_t );
 static int  Control( access_t *, int, va_list );

@@ -338,22 +338,22 @@ static int Seek( access_t *p_access, int64_t i_pos )
 /*****************************************************************************
 * Read:
 *****************************************************************************/
-static int ReadRedirect( access_t *p_access, uint8_t *p, int i_len )
+static ssize_t ReadRedirect( access_t *p_access, uint8_t *p, size_t i_len )
 {
-    return VLC_SUCCESS;
+    return 0;
 }

 /*****************************************************************************
 * Read:
 *****************************************************************************/
-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;
    size_t       i_copy;
    size_t       i_data = 0;

    if( p_access->info.b_eof )
-        return VLC_SUCCESS;
+        return 0;

    while( i_data < (size_t) i_len )
    {

--- a/modules/access/mms/mmstu.c
+++ b/modules/access/mms/mmstu.c
@@ -68,7 +68,7 @@ int  E_( MMSTUOpen )  ( access_t * );
 void E_( MMSTUClose ) ( access_t * );


-static int Read( access_t *, uint8_t *, int );
+static ssize_t Read( access_t *, uint8_t *, size_t );
 static int Seek( access_t *, int64_t );
 static int Control( access_t *, int, va_list );

@@ -370,7 +370,7 @@ static int Seek( access_t * p_access, int64_t i_pos )
 /*****************************************************************************
 * Read:
 *****************************************************************************/
-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;
    size_t      i_data;

--- a/modules/access/pvr.c
+++ b/modules/access/pvr.c
@@ -166,7 +166,7 @@ vlc_module_end();
 /*****************************************************************************
 * Prototypes
 *****************************************************************************/
-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 );

 /* ivtv specific ioctls */
@@ -1063,7 +1063,7 @@ static void Close( vlc_object_t * p_this )
 /*****************************************************************************
 * Read
 *****************************************************************************/
-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 = (access_sys_t *) p_access->p_sys;
    struct pollfd ufd;

--- a/modules/access/smb.c
+++ b/modules/access/smb.c
@@ -91,7 +91,7 @@ vlc_module_end();
 /*****************************************************************************
 * Local prototypes
 *****************************************************************************/
-static int Read( access_t *, uint8_t *, int );
+static ssize_t Read( access_t *, uint8_t *, size_t );
 static int Seek( access_t *, int64_t );
 static int Control( access_t *, int, va_list );

@@ -348,7 +348,7 @@ static int Seek( access_t *p_access, int64_t i_pos )
 /*****************************************************************************
 * Read:
 *****************************************************************************/
-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_read;

--- a/modules/access/tcp.c
+++ b/modules/access/tcp.c
@@ -64,7 +64,7 @@ struct access_sys_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 );

 /*****************************************************************************
@@ -132,7 +132,7 @@ static void Close( vlc_object_t *p_this )
 /*****************************************************************************
 * Read: read on a file descriptor, checking b_die periodically
 *****************************************************************************/
-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_read;

--- a/modules/access_filter/bandwidth.c
+++ b/modules/access_filter/bandwidth.c
@@ -49,7 +49,7 @@ vlc_module_begin ();
                 BANDWIDTH_LONGTEXT, VLC_FALSE);
 vlc_module_end();

-static int Read (access_t *access, uint8_t *buffer, int len);
+static ssize_t Read (access_t *access, uint8_t *buffer, size_t len);
 static int Seek (access_t *access, int64_t offset);
 static int Control (access_t *access, int cmd, va_list ap);

@@ -107,7 +107,7 @@ static void Close (vlc_object_t *obj)
 }


-static int Read (access_t *access, uint8_t *buffer, int len)
+static ssize_t Read (access_t *access, uint8_t *buffer, size_t len)
 {
    access_t *src = access->p_source;
    access_sys_t *p_sys = access->p_sys;

--- a/modules/access_filter/dump.c
+++ b/modules/access_filter/dump.c
@@ -60,7 +60,7 @@ vlc_module_begin ();
                 MARGIN_LONGTEXT, VLC_FALSE);
 vlc_module_end();

-static int Read (access_t *access, uint8_t *buffer, int len);
+static ssize_t Read (access_t *access, uint8_t *buffer, size_t len);
 static block_t *Block (access_t *access);
 static int Seek (access_t *access, int64_t offset);
 static int Control (access_t *access, int cmd, va_list ap);
@@ -180,7 +180,7 @@ error:
 }


-static int Read (access_t *access, uint8_t *buffer, int len)
+static ssize_t Read (access_t *access, uint8_t *buffer, size_t len)
 {
    access_t *src = access->p_source;


--- a/modules/access_filter/record.c
+++ b/modules/access_filter/record.c
@@ -67,7 +67,7 @@ vlc_module_end();
 *****************************************************************************/

 static block_t *Block  ( access_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 i_query, va_list args );
 static int      Seek   ( access_t *, int64_t );

@@ -205,7 +205,7 @@ static block_t *Block( access_t *p_access )
 /*****************************************************************************
 *
 *****************************************************************************/
-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_t     *p_src = p_access->p_source;
    int i_ret;

--- a/modules/access_output/file.c
+++ b/modules/access_output/file.c
@@ -83,9 +83,9 @@ static const char *ppsz_sout_options[] = {
    "append", NULL
 };

-static int Write( sout_access_out_t *, block_t * );
+static ssize_t Write( sout_access_out_t *, block_t * );
 static int Seek ( sout_access_out_t *, off_t  );
-static int Read ( sout_access_out_t *, block_t * );
+static ssize_t Read ( sout_access_out_t *, block_t * );

 struct sout_access_out_sys_t
 {
@@ -184,7 +184,7 @@ static void Close( vlc_object_t * p_this )
 /*****************************************************************************
 * Read: standard read on a file descriptor.
 *****************************************************************************/
-static int Read( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Read( sout_access_out_t *p_access, block_t *p_buffer )
 {
    if( strcmp( p_access->psz_path, "-" ) )
    {
@@ -199,7 +199,7 @@ static int Read( sout_access_out_t *p_access, block_t *p_buffer )
 /*****************************************************************************
 * Write: standard write on a file descriptor.
 *****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 {
    size_t i_write = 0;


--- a/modules/access_output/http.c
+++ b/modules/access_output/http.c
@@ -122,7 +122,7 @@ static const char *ppsz_sout_options[] = {
    "user", "pwd", "mime", "cert", "key", "ca", "crl", NULL
 };

-static int Write( sout_access_out_t *, block_t * );
+static ssize_t Write( sout_access_out_t *, block_t * );
 static int Seek ( sout_access_out_t *, off_t  );

 struct sout_access_out_sys_t
@@ -373,7 +373,7 @@ static void Close( vlc_object_t * p_this )
 /*****************************************************************************
 * Write:
 *****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 {
    sout_access_out_sys_t *p_sys = p_access->p_sys;
    int i_err = 0;

--- a/modules/access_output/shout.c
+++ b/modules/access_output/shout.c
@@ -144,9 +144,8 @@ static const char *ppsz_sout_options[] = {
 /*****************************************************************************
 * Exported prototypes
 *****************************************************************************/
-static int Write( sout_access_out_t *, block_t * );
+static ssize_t Write( sout_access_out_t *, block_t * );
 static int Seek ( sout_access_out_t *, off_t  );
-static int Read ( sout_access_out_t *, block_t * );

 struct sout_access_out_sys_t
 {
@@ -445,7 +444,6 @@ static int Open( vlc_object_t *p_this )
    }

    p_access->pf_write = Write;
-    p_access->pf_read  = Read;
    p_access->pf_seek  = Seek;

    msg_Dbg( p_access, "shout access output opened (%s@%s:%i/%s)",
@@ -485,19 +483,10 @@ static void Close( vlc_object_t * p_this )
    msg_Dbg( p_access, "shout access output closed" );
 }

-/*****************************************************************************
- * Read: standard read -- not supported
- *****************************************************************************/
-static int Read( sout_access_out_t *p_access, block_t *p_buffer )
-{
-    msg_Err( p_access, "cannot read from shout" );
-    return VLC_EGENERIC;
-}
-
 /*****************************************************************************
 * Write: standard write
 *****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 {
    size_t i_write = 0;


--- a/modules/access_output/udp.c
+++ b/modules/access_output/udp.c
@@ -112,7 +112,7 @@ static const char *const ppsz_core_options[] = {
    NULL
 };

-static int  Write   ( sout_access_out_t *, block_t * );
+static ssize_t Write   ( sout_access_out_t *, block_t * );
 static int  Seek    ( sout_access_out_t *, off_t  );

 static void ThreadWrite( vlc_object_t * );
@@ -323,7 +323,7 @@ static void Close( vlc_object_t * p_this )
 /*****************************************************************************
 * Write: standard write on a file descriptor.
 *****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
 {
    sout_access_out_sys_t *p_sys = p_access->p_sys;
    int i_len = 0;