kopia lustrzana https://gitlab.com/sane-project/frontends
sanei resync with sane-backends, fixes a deadlock between xscanimage and
saned when scanning over the network.merge-requests/2/head
rodzic
eff8cec616
commit
18c43a087d
|
@ -1,3 +1,7 @@
|
|||
2004-12-11 Julien Blache <jb@jblache.org>
|
||||
* sanei resync with sane-backends, fixes a deadlock between xscanimage
|
||||
and saned when scanning over the network.
|
||||
|
||||
2004-10-30 Henning Meier-Geinitz <henning@meier-geinitz.de>
|
||||
|
||||
* doc/scanadf.man src/scanadf.c: Wait for scan-scripts so all
|
||||
|
|
|
@ -1,5 +1,7 @@
|
|||
/* sane - Scanner Access Now Easy.
|
||||
Copyright (C) 1996 David Mosberger-Tang and Andreas Beck
|
||||
Copyright (C) 2002, 2003 Henning Meier-Geinitz
|
||||
|
||||
This file is part of the SANE package.
|
||||
|
||||
SANE is free software; you can redistribute it and/or modify it
|
||||
|
@ -16,26 +18,155 @@
|
|||
along with sane; see the file COPYING. If not, write to the Free
|
||||
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
This file declares SANE internal routines that are provided to
|
||||
simplify backend implementation. */
|
||||
As a special exception, the authors of SANE give permission for
|
||||
additional uses of the libraries contained in this release of SANE.
|
||||
|
||||
The exception is that, if you link a SANE library with other files
|
||||
to produce an executable, this does not by itself cause the
|
||||
resulting executable to be covered by the GNU General Public
|
||||
License. Your use of that executable is in no way restricted on
|
||||
account of linking the SANE library code into it.
|
||||
|
||||
This exception does not, however, invalidate any other reasons why
|
||||
the executable file might be covered by the GNU General Public
|
||||
License.
|
||||
|
||||
If you submit changes to SANE to the maintainers to be included in
|
||||
a subsequent release, you agree by submitting the changes that
|
||||
those changes may be distributed with this exception intact.
|
||||
|
||||
If you write modifications of your own for SANE, it is your choice
|
||||
whether to permit this exception to apply to your modifications.
|
||||
If you do not wish that, delete this exception notice.
|
||||
*/
|
||||
|
||||
/** @file sanei.h
|
||||
* Convenience macros and function declarations for backends
|
||||
* @sa sanei_backend.h sanei_thread.h
|
||||
*/
|
||||
|
||||
/* Doxygen documentation */
|
||||
|
||||
/** @mainpage SANEI (SANE internal routines) documentation
|
||||
*
|
||||
* @image html ../images/sane-logo2.jpg
|
||||
* @section intro Introduction
|
||||
*
|
||||
* The header files in the include/sane/ directory named sanei_*.h provide
|
||||
* function declarations and macros that can be used by every SANE backend.
|
||||
* Their implementations can be found in the sanei/ directory. The code aims
|
||||
* to be platform-independent to avoid lots of \#ifdef code in the backends.
|
||||
* Please use the SANEI functions wherever possible.
|
||||
*
|
||||
* This documentation was created by the use of doxygen, the
|
||||
* doc/doxygen-sanei.conf configuration file and dcoumentation in the sanei_*.h
|
||||
* files.
|
||||
*
|
||||
* This documenation is far from complete. Any help is appreciated.
|
||||
*
|
||||
* @section additional Additional documentation
|
||||
* - The SANE standard can be found at <a
|
||||
* href="http://www.sane-project.org/html/">the SANE webserver</a>.
|
||||
* - Information on how to write a backend: <a
|
||||
* href="../backend-writing.txt">backend-writing.txt</a>.
|
||||
* - General SANE documentation is on <a
|
||||
* href="http://www.sane-project.org/docs.html>the SANE documentation
|
||||
* page</a>.
|
||||
*
|
||||
* @section contact Contact
|
||||
*
|
||||
* The common way to contact the developers of SANE is the sane-devel
|
||||
* mailing list. See the <a
|
||||
* href="http://www.sane-project.org/mailing-lists.html">mailing list webpage</a>
|
||||
* for details. That's the place to ask questions, report bugs, or announce
|
||||
* a new backend.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef sanei_h
|
||||
#define sanei_h
|
||||
|
||||
#include <sane/sane.h>
|
||||
|
||||
/* A few convenience macros: */
|
||||
/** @name Public macros and functions
|
||||
* @{
|
||||
*/
|
||||
/** @def STRINGIFY(x)
|
||||
* Turn parameter into string.
|
||||
*/
|
||||
/** @def PASTE(x,y)
|
||||
* Concatenate parameters.
|
||||
*
|
||||
*/
|
||||
/** @def NELEMS(a)
|
||||
* Return number of elements of an array.
|
||||
*
|
||||
*/
|
||||
|
||||
/** @fn extern SANE_Status sanei_check_value (const SANE_Option_Descriptor * opt, void * value);
|
||||
* Check the constraints of a SANE option.
|
||||
*
|
||||
* @param opt option to check
|
||||
* @param value value of the option
|
||||
*
|
||||
* @return
|
||||
* - SANE_STATUS_GOOD - on success
|
||||
* - SANE_STATUS_INVAL - if the value doesn't fit inside the constraint
|
||||
* or any other error occured
|
||||
* @sa sanei_constrain_value()
|
||||
*/
|
||||
|
||||
/** @fn extern SANE_Status sanei_constrain_value (const SANE_Option_Descriptor * opt, void * value, SANE_Word * info);
|
||||
* Check the constraints of a SANE option and adjust its value if necessary.
|
||||
*
|
||||
* Depending on the type of the option and constraint, value is modified
|
||||
* to fit inside constraint.
|
||||
*
|
||||
* @param opt option to check
|
||||
* @param value value of the option
|
||||
* @param info info is set to SANE_INFO_INEXACT if value was changed
|
||||
*
|
||||
* @return
|
||||
* - SANE_STATUS_GOOD - on success
|
||||
* - SANE_STATUS_INVAL - if the function wasn't able to fit value into the
|
||||
* constraint or any other error occured
|
||||
* @sa sanei_check_value()
|
||||
*/
|
||||
|
||||
/* @} */
|
||||
|
||||
/** @name Private macros
|
||||
* @{
|
||||
*/
|
||||
/** @def STRINGIFY1(x)
|
||||
* Internal use only.
|
||||
*/
|
||||
/** @def PASTE1(x,y)
|
||||
* Internal use only.
|
||||
*/
|
||||
/* @} */
|
||||
|
||||
/* A few convenience macros: */
|
||||
/** @hideinitializer */
|
||||
#define NELEMS(a) ((int)(sizeof (a) / sizeof (a[0])))
|
||||
|
||||
/** @hideinitializer */
|
||||
#define STRINGIFY1(x) #x
|
||||
/** @hideinitializer */
|
||||
#define STRINGIFY(x) STRINGIFY1(x)
|
||||
|
||||
/** @hideinitializer */
|
||||
#define PASTE1(x,y) x##y
|
||||
/** @hideinitializer */
|
||||
#define PASTE(x,y) PASTE1(x,y)
|
||||
|
||||
#define NELEMS(a) ((int)(sizeof (a) / sizeof (a[0])))
|
||||
extern SANE_Status sanei_check_value (const SANE_Option_Descriptor * opt,
|
||||
void * value);
|
||||
|
||||
extern SANE_Status sanei_constrain_value (const SANE_Option_Descriptor * opt,
|
||||
void * value, SANE_Word * info);
|
||||
|
||||
|
||||
extern int sanei_save_values (int fd, SANE_Handle device);
|
||||
extern int sanei_load_values (int fd, SANE_Handle device);
|
||||
|
||||
|
|
|
@ -16,11 +16,47 @@
|
|||
along with sane; see the file COPYING. If not, write to the Free
|
||||
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
This file declares SANE application interface. See the SANE
|
||||
standard for a detailed explanation of the interface. */
|
||||
As a special exception, the authors of SANE give permission for
|
||||
additional uses of the libraries contained in this release of SANE.
|
||||
|
||||
The exception is that, if you link a SANE library with other files
|
||||
to produce an executable, this does not by itself cause the
|
||||
resulting executable to be covered by the GNU General Public
|
||||
License. Your use of that executable is in no way restricted on
|
||||
account of linking the SANE library code into it.
|
||||
|
||||
This exception does not, however, invalidate any other reasons why
|
||||
the executable file might be covered by the GNU General Public
|
||||
License.
|
||||
|
||||
If you submit changes to SANE to the maintainers to be included in
|
||||
a subsequent release, you agree by submitting the changes that
|
||||
those changes may be distributed with this exception intact.
|
||||
|
||||
If you write modifications of your own for SANE, it is your choice
|
||||
whether to permit this exception to apply to your modifications.
|
||||
If you do not wish that, delete this exception notice.
|
||||
*/
|
||||
|
||||
/** @file sanei_codec_ascii.h
|
||||
* ASCII codec for network and file transmissions
|
||||
*
|
||||
* Instead translating data to a byte stream this codec uses ASCII hex numbers.
|
||||
* Therefore it can be used for streams that are not 8-bit clean or which can
|
||||
* only use printable characters. It's currently used for saving/restoring
|
||||
* data to/from disk.
|
||||
*
|
||||
* @sa sanei_codec_bin.h sanei_net.h sanei_wire.h
|
||||
*/
|
||||
#ifndef sanei_codec_ascii_h
|
||||
#define sanei_codec_ascii_h
|
||||
|
||||
/** Initialize the ascii codec
|
||||
*
|
||||
* Set the i/o functions of the Wire to those of the ASCII codec.
|
||||
*
|
||||
* @param w Wire
|
||||
*/
|
||||
extern void sanei_codec_ascii_init (Wire *w);
|
||||
|
||||
#endif /* sanei_codec_ascii_h */
|
||||
|
|
|
@ -16,11 +16,46 @@
|
|||
along with sane; see the file COPYING. If not, write to the Free
|
||||
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
This file declares SANE application interface. See the SANE
|
||||
standard for a detailed explanation of the interface. */
|
||||
As a special exception, the authors of SANE give permission for
|
||||
additional uses of the libraries contained in this release of SANE.
|
||||
|
||||
The exception is that, if you link a SANE library with other files
|
||||
to produce an executable, this does not by itself cause the
|
||||
resulting executable to be covered by the GNU General Public
|
||||
License. Your use of that executable is in no way restricted on
|
||||
account of linking the SANE library code into it.
|
||||
|
||||
This exception does not, however, invalidate any other reasons why
|
||||
the executable file might be covered by the GNU General Public
|
||||
License.
|
||||
|
||||
If you submit changes to SANE to the maintainers to be included in
|
||||
a subsequent release, you agree by submitting the changes that
|
||||
those changes may be distributed with this exception intact.
|
||||
|
||||
If you write modifications of your own for SANE, it is your choice
|
||||
whether to permit this exception to apply to your modifications.
|
||||
If you do not wish that, delete this exception notice.
|
||||
*/
|
||||
|
||||
/** @file sanei_codec_bin.h
|
||||
* Binary codec for network transmissions
|
||||
*
|
||||
* Transtale data to a byte stream while taking byte order problems into
|
||||
* account. This codec is currently used for saned and the network backend.
|
||||
*
|
||||
* @sa sanei_codec_ascii.h sanei_net.h sanei_wire.h
|
||||
*/
|
||||
|
||||
#ifndef sanei_codec_bin_h
|
||||
#define sanei_codec_bin_h
|
||||
|
||||
/** Initialize the binary codec
|
||||
*
|
||||
* Set the i/o functions of the Wire to those of the binary codec.
|
||||
*
|
||||
* @param w Wire
|
||||
*/
|
||||
extern void sanei_codec_bin_init (Wire *w);
|
||||
|
||||
#endif /* sanei_codec_bin_h */
|
||||
|
|
|
@ -1,28 +1,95 @@
|
|||
/** @file sanei_debug.h
|
||||
* Support for printing debug messages.
|
||||
*
|
||||
* Use the functions of this header file to print debug or warning messages.
|
||||
*/
|
||||
|
||||
#ifndef _SANEI_DEBUG_H
|
||||
#define _SANEI_DEBUG_H
|
||||
|
||||
#include <sane/sanei.h>
|
||||
|
||||
/* this header file defines:
|
||||
/** @name Public macros
|
||||
* These macros can be used in backends and other SANE-related
|
||||
* code.
|
||||
*
|
||||
* DBG_INIT() - should be called before any other debug function
|
||||
* DBG(level, fmt, ...) - prints a message at debug level `level' or higher
|
||||
* using a printf-like function
|
||||
* IF_DBG(x) - expands to x if debug support is enabled at
|
||||
* compile-time, if NDEBUG is defined at compile-time
|
||||
* this macro expands to nothing
|
||||
* Before including sanei_debug.h, the following macros must be set:
|
||||
*
|
||||
* ENTRY(name) - expands to sane_BACKEND_NAME_name
|
||||
*
|
||||
* before you include sanei_debug.h, you'll have to define
|
||||
*
|
||||
* BACKEND_NAME - the name of your backend without double-quotes
|
||||
* STUBS - if this is defined, nothing will happen
|
||||
* DEBUG_DECLARE_ONLY - generate prototypes instead of functions
|
||||
* DEBUG_NOT_STATIC - doesn't generate static functions
|
||||
* - BACKEND_NAME - The name of your backend without double-quotes (must be set in any case)
|
||||
* - STUBS - If this is defined, no macros will be included. Used in
|
||||
* backends consisting of more than one .c file.
|
||||
* - DEBUG_DECLARE_ONLY - Generates prototypes instead of functions. Used in
|
||||
* backends consisting of more than one .c file.
|
||||
* - DEBUG_NOT_STATIC - Doesn't generate static functions. Used in header files if
|
||||
* they are include in more than one .c file.
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @def DBG_INIT()
|
||||
* Initialize sanei_debug.
|
||||
*
|
||||
* Call this function before you use any DBG function.
|
||||
*/
|
||||
|
||||
/** @def DBG(level, fmt, ...)
|
||||
* Print a message at debug level `level' or higher using a printf-like
|
||||
* function. Example: DBG(1, "sane_open: opening fd \%d\\n", fd).
|
||||
*
|
||||
* @param level debug level
|
||||
* @param fmt format (see man 3 printf for details)
|
||||
* @param ... additional arguments
|
||||
*/
|
||||
|
||||
/** @def IF_DBG(x)
|
||||
* Compile code only if debugging is enabled.
|
||||
*
|
||||
* Expands to x if debug support is enabled at compile-time. If NDEBUG is
|
||||
* defined at compile-time this macro expands to nothing.
|
||||
*
|
||||
* @param x code to expand when debugging is enabled
|
||||
*/
|
||||
|
||||
/**
|
||||
* @def DBG_LEVEL
|
||||
* Current debug level.
|
||||
*
|
||||
* You can only read this "variable".
|
||||
*/
|
||||
|
||||
/** @def ENTRY(name)
|
||||
* Expands to sane_BACKEND_NAME_name.
|
||||
*
|
||||
* Example: ENTRY(init) in mustek.c will expand to sane_mustek_init.
|
||||
*/
|
||||
|
||||
/* @} */
|
||||
|
||||
/** @name Internal macros and functions
|
||||
* Do not use in your own code.
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @def DBG_LOCAL
|
||||
* Do not use in backends directly.
|
||||
*
|
||||
* Internal wrapper for printing function.
|
||||
*/
|
||||
|
||||
/** @fn extern void sanei_init_debug (const char * backend, int * debug_level_var);
|
||||
* Do not use in backends directly.
|
||||
*
|
||||
* Actual init function.
|
||||
*/
|
||||
|
||||
/** @fn extern void sanei_debug_msg (int level, int max_level, const char *be, const char *fmt, va_list ap);
|
||||
* Do not use in backends directly.
|
||||
*
|
||||
* Actual printing function.
|
||||
*/
|
||||
/* @} */
|
||||
|
||||
/** @hideinitializer*/
|
||||
#define ENTRY(name) PASTE(PASTE(PASTE(sane_,BACKEND_NAME),_),name)
|
||||
|
||||
#ifdef NDEBUG
|
||||
|
@ -36,6 +103,7 @@ extern void sanei_debug_ndebug (int level, const char *msg, ...);
|
|||
|
||||
#else /* !NDEBUG */
|
||||
|
||||
/** @hideinitializer*/
|
||||
# define DBG_LEVEL PASTE(sanei_debug_,BACKEND_NAME)
|
||||
|
||||
# if defined(BACKEND_NAME) && !defined(STUBS)
|
||||
|
@ -46,9 +114,11 @@ int DBG_LEVEL = 0;
|
|||
# endif /* DEBUG_DECLARE_ONLY */
|
||||
# endif /* BACKEND_NAME && !STUBS */
|
||||
|
||||
/** @hideinitializer*/
|
||||
# define DBG_INIT() \
|
||||
sanei_init_debug (STRINGIFY(BACKEND_NAME), &DBG_LEVEL)
|
||||
|
||||
/** @hideinitializer*/
|
||||
# define DBG_LOCAL PASTE(DBG_LEVEL,_call)
|
||||
|
||||
|
||||
|
@ -56,7 +126,11 @@ int DBG_LEVEL = 0;
|
|||
|
||||
# ifdef DEBUG_DECLARE_ONLY
|
||||
|
||||
extern void DBG_LOCAL (int level, const char *msg, ...);
|
||||
extern void DBG_LOCAL (int level, const char *msg, ...)
|
||||
#ifdef __GNUC__
|
||||
__attribute__ ((format (printf, 2, 3)))
|
||||
#endif
|
||||
;
|
||||
|
||||
# else /* !DEBUG_DECLARE_ONLY */
|
||||
|
||||
|
@ -65,6 +139,13 @@ extern void DBG_LOCAL (int level, const char *msg, ...);
|
|||
extern void sanei_debug_msg
|
||||
(int level, int max_level, const char *be, const char *fmt, va_list ap);
|
||||
|
||||
#ifdef __GNUC__
|
||||
# ifndef DEBUG_NOT_STATIC
|
||||
static
|
||||
# endif /* !DEBUG_NOT_STATIC */
|
||||
void DBG_LOCAL (int level, const char *msg, ...) __attribute__ ((format (printf, 2, 3)));
|
||||
#endif /* __GNUC__ */
|
||||
|
||||
# ifndef DEBUG_NOT_STATIC
|
||||
static
|
||||
# endif /* !DEBUG_NOT_STATIC */
|
||||
|
@ -78,14 +159,16 @@ DBG_LOCAL (int level, const char *msg, ...)
|
|||
va_end (ap);
|
||||
}
|
||||
|
||||
# endif /* DEBUG_NOT_STATIC */
|
||||
# endif /* DEBUG_DECLARE_ONLY */
|
||||
|
||||
# endif /* !STUBS */
|
||||
|
||||
/** @hideinitializer*/
|
||||
# define DBG DBG_LOCAL
|
||||
|
||||
extern void sanei_init_debug (const char * backend, int * debug_level_var);
|
||||
|
||||
/** @hideinitializer*/
|
||||
# define IF_DBG(x) x
|
||||
|
||||
#endif /* NDEBUG */
|
||||
|
|
|
@ -16,6 +16,27 @@
|
|||
along with sane; see the file COPYING. If not, write to the Free
|
||||
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
As a special exception, the authors of SANE give permission for
|
||||
additional uses of the libraries contained in this release of SANE.
|
||||
|
||||
The exception is that, if you link a SANE library with other files
|
||||
to produce an executable, this does not by itself cause the
|
||||
resulting executable to be covered by the GNU General Public
|
||||
License. Your use of that executable is in no way restricted on
|
||||
account of linking the SANE library code into it.
|
||||
|
||||
This exception does not, however, invalidate any other reasons why
|
||||
the executable file might be covered by the GNU General Public
|
||||
License.
|
||||
|
||||
If you submit changes to SANE to the maintainers to be included in
|
||||
a subsequent release, you agree by submitting the changes that
|
||||
those changes may be distributed with this exception intact.
|
||||
|
||||
If you write modifications of your own for SANE, it is your choice
|
||||
whether to permit this exception to apply to your modifications.
|
||||
If you do not wish that, delete this exception notice.
|
||||
|
||||
Support routines to translate internal datatypes into a wire-format
|
||||
(used for RPCs and to save/restore options). */
|
||||
|
||||
|
@ -24,6 +45,8 @@
|
|||
|
||||
#include <sys/types.h>
|
||||
|
||||
#define MAX_MEM (1024 * 1024)
|
||||
|
||||
typedef enum
|
||||
{
|
||||
WIRE_ENCODE = 0,
|
||||
|
@ -43,6 +66,7 @@ typedef struct Wire
|
|||
int version; /* protocol version in use */
|
||||
WireDirection direction;
|
||||
int status;
|
||||
int allocated_memory;
|
||||
struct
|
||||
{
|
||||
WireCodecFunc w_byte;
|
||||
|
@ -70,11 +94,15 @@ typedef struct Wire
|
|||
Wire;
|
||||
|
||||
extern void sanei_w_init (Wire *w, void (*codec_init)(Wire *));
|
||||
extern void sanei_w_exit (Wire *w);
|
||||
extern void sanei_w_space (Wire *w, size_t howmuch);
|
||||
extern void sanei_w_void (Wire *w);
|
||||
extern void sanei_w_byte (Wire *w, SANE_Byte *v);
|
||||
extern void sanei_w_char (Wire *w, SANE_Char *v);
|
||||
extern void sanei_w_word (Wire *w, SANE_Word *v);
|
||||
extern void sanei_w_bool (Wire *w, SANE_Bool *v);
|
||||
extern void sanei_w_ptr (Wire *w, void **v, WireCodecFunc w_value,
|
||||
size_t value_size);
|
||||
extern void sanei_w_string (Wire *w, SANE_String *v);
|
||||
extern void sanei_w_status (Wire *w, SANE_Status *v);
|
||||
extern void sanei_w_constraint_type (Wire *w, SANE_Constraint_Type *v);
|
||||
|
|
|
@ -54,6 +54,9 @@ bin_w_byte (Wire *w, void *v)
|
|||
SANE_Byte *b = v;
|
||||
|
||||
sanei_w_space (w, 1);
|
||||
if (w->status)
|
||||
return;
|
||||
|
||||
switch (w->direction)
|
||||
{
|
||||
case WIRE_ENCODE:
|
||||
|
@ -82,8 +85,14 @@ bin_w_string (Wire *w, void *v)
|
|||
len = strlen (*s) + 1;
|
||||
}
|
||||
sanei_w_array (w, &len, v, w->codec.w_byte, 1);
|
||||
if (w->direction == WIRE_DECODE && !len)
|
||||
*s = 0;
|
||||
|
||||
if (w->direction == WIRE_DECODE)
|
||||
{
|
||||
if (len == 0)
|
||||
*s = 0;
|
||||
else if (w->status == 0)
|
||||
*(*s + len - 1) = '\0';
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
|
@ -92,6 +101,8 @@ bin_w_word (Wire *w, void *v)
|
|||
SANE_Word val, *word = v;
|
||||
|
||||
sanei_w_space (w, 4);
|
||||
if (w->status)
|
||||
return;
|
||||
switch (w->direction)
|
||||
{
|
||||
case WIRE_ENCODE:
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
/* sane - Scanner Access Now Easy.
|
||||
Copyright (C) 2000 Yuri Dario
|
||||
Copyright (C) 1998-2001 Yuri Dario
|
||||
Copyright (C) 2003-2004 Gerhard Jaeger (pthread/process support)
|
||||
This file is part of the SANE package.
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
|
@ -37,72 +38,388 @@
|
|||
If you write modifications of your own for SANE, it is your choice
|
||||
whether to permit this exception to apply to your modifications.
|
||||
If you do not wish that, delete this exception notice.
|
||||
|
||||
OS/2
|
||||
Helper functions for the OS/2 port (using threads instead of forked
|
||||
processes). Don't use them in the backends, they are used automatically by
|
||||
macros.
|
||||
|
||||
Other OS:
|
||||
use this lib, if you intend to let run your reader function within its own
|
||||
task (thread or process). Depending on the OS and/or the configure settings
|
||||
pthread or fork is used to achieve this goal.
|
||||
*/
|
||||
|
||||
#include "sane/config.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
#ifdef HAVE_UNISTD_H
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_OS2_H
|
||||
#define INCL_DOSPROCESS
|
||||
#include <os2.h>
|
||||
# define INCL_DOSPROCESS
|
||||
# include <os2.h>
|
||||
#endif
|
||||
#if !defined USE_PTHREAD && !defined HAVE_OS2_H
|
||||
# include <sys/wait.h>
|
||||
#endif
|
||||
#if defined USE_PTHREAD
|
||||
# include <pthread.h>
|
||||
#endif
|
||||
|
||||
#define BACKEND_NAME sanei_thread /**< name of this module for debugging */
|
||||
|
||||
#include <sane/sane.h>
|
||||
#include "../include/sane/sanei_debug.h"
|
||||
#include "../include/sane/sanei_thread.h"
|
||||
|
||||
#ifndef _VAR_NOT_USED
|
||||
# define _VAR_NOT_USED(x) ((x)=(x))
|
||||
#endif
|
||||
|
||||
typedef struct {
|
||||
|
||||
int (*func)( void* );
|
||||
SANE_Status status;
|
||||
void *func_data;
|
||||
|
||||
} ThreadDataDef, *pThreadDataDef;
|
||||
|
||||
static ThreadDataDef td;
|
||||
|
||||
/** for init issues - here only for the debug output
|
||||
*/
|
||||
void
|
||||
sanei_thread_init( void )
|
||||
{
|
||||
DBG_INIT();
|
||||
|
||||
memset( &td, 0, sizeof(ThreadDataDef));
|
||||
td.status = SANE_STATUS_GOOD;
|
||||
}
|
||||
|
||||
SANE_Bool
|
||||
sanei_thread_is_forked( void )
|
||||
{
|
||||
#if defined USE_PTHREAD || defined HAVE_OS2_H
|
||||
return SANE_FALSE;
|
||||
#else
|
||||
return SANE_TRUE;
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_kill( int pid )
|
||||
{
|
||||
DBG(2, "sanei_thread_kill() will kill %d\n", (int)pid);
|
||||
#ifdef USE_PTHREAD
|
||||
#if defined (__APPLE__) && defined (__MACH__)
|
||||
return pthread_kill((pthread_t)pid, SIGUSR2);
|
||||
#else
|
||||
return pthread_cancel((pthread_t)pid);
|
||||
#endif
|
||||
#elif defined HAVE_OS2_H
|
||||
return DosKillThread(pid);
|
||||
#else
|
||||
return kill( pid, SIGTERM );
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef HAVE_OS2_H
|
||||
|
||||
static void
|
||||
local_thread( void *arg )
|
||||
{
|
||||
pThreadDataDef ltd = (pThreadDataDef)arg;
|
||||
|
||||
DBG( 2, "thread started, calling func() now...\n" );
|
||||
ltd->status = ltd->func( ltd->func_data );
|
||||
|
||||
DBG( 2, "func() done - status = %d\n", ltd->status );
|
||||
_endthread();
|
||||
}
|
||||
|
||||
/*
|
||||
* starts a new thread or process
|
||||
* parameters:
|
||||
* start address of reader function
|
||||
* arg_list pointer to scanner data structure
|
||||
* star address of reader function
|
||||
* args pointer to scanner data structure
|
||||
*
|
||||
*/
|
||||
*/
|
||||
int
|
||||
sanei_thread_begin( void (*start)(void *arg),
|
||||
void *arg_list)
|
||||
sanei_thread_begin( int (*func)(void *args), void* args )
|
||||
{
|
||||
#ifdef HAVE_OS2_H
|
||||
return _beginthread( start, NULL, 64*1024, arg_list);
|
||||
int pid;
|
||||
|
||||
td.func = func;
|
||||
td.func_data = args;
|
||||
|
||||
pid = _beginthread( local_thread, NULL, 1024*1024, (void*)&td );
|
||||
if ( pid == -1 ) {
|
||||
DBG( 1, "_beginthread() failed\n" );
|
||||
return -1;
|
||||
}
|
||||
|
||||
DBG( 2, "_beginthread() created thread %d\n", pid );
|
||||
return pid;
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_waitpid( int pid, int *status )
|
||||
{
|
||||
if (status)
|
||||
*status = 0;
|
||||
return pid; /* DosWaitThread( (TID*) &pid, DCWW_WAIT);*/
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_sendsig( int pid, int sig )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#else /* HAVE_OS2_H */
|
||||
|
||||
#ifdef USE_PTHREAD
|
||||
|
||||
/* seems to be undefined in MacOS X */
|
||||
#ifndef PTHREAD_CANCELED
|
||||
# define PTHREAD_CANCELED ((void *) -1)
|
||||
#endif
|
||||
|
||||
/**
|
||||
*/
|
||||
#if defined (__APPLE__) && defined (__MACH__)
|
||||
static void
|
||||
thread_exit_handler( int signo )
|
||||
{
|
||||
DBG( 2, "signal(%i) caught, calling pthread_exit now...\n", signo );
|
||||
pthread_exit( PTHREAD_CANCELED );
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static void*
|
||||
local_thread( void *arg )
|
||||
{
|
||||
static int status;
|
||||
pThreadDataDef ltd = (pThreadDataDef)arg;
|
||||
|
||||
#if defined (__APPLE__) && defined (__MACH__)
|
||||
struct sigaction act;
|
||||
|
||||
sigemptyset(&(act.sa_mask));
|
||||
act.sa_flags = 0;
|
||||
act.sa_handler = thread_exit_handler;
|
||||
sigaction( SIGUSR2, &act, 0 );
|
||||
#else
|
||||
return fork();
|
||||
int old;
|
||||
|
||||
pthread_setcancelstate( PTHREAD_CANCEL_ENABLE, &old );
|
||||
pthread_setcanceltype ( PTHREAD_CANCEL_ASYNCHRONOUS, &old );
|
||||
#endif
|
||||
|
||||
DBG( 2, "thread started, calling func() now...\n" );
|
||||
|
||||
status = ltd->func( ltd->func_data );
|
||||
|
||||
/* so sanei_thread_get_status() will work correctly... */
|
||||
ltd->status = status;
|
||||
|
||||
DBG( 2, "func() done - status = %d\n", status );
|
||||
|
||||
/* return the status, so pthread_join is able to get it*/
|
||||
pthread_exit((void*)&status );
|
||||
}
|
||||
|
||||
/**
|
||||
*/
|
||||
static void
|
||||
restore_sigpipe( void )
|
||||
{
|
||||
struct sigaction act;
|
||||
|
||||
if( sigaction( SIGPIPE, NULL, &act ) == 0 ) {
|
||||
|
||||
if( act.sa_handler == SIG_IGN ) {
|
||||
sigemptyset( &act.sa_mask );
|
||||
act.sa_flags = 0;
|
||||
act.sa_handler = SIG_DFL;
|
||||
|
||||
DBG( 2, "restoring SIGPIPE to SIG_DFL\n" );
|
||||
sigaction( SIGPIPE, &act, NULL );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#else /* the process stuff */
|
||||
|
||||
static int
|
||||
eval_wp_result( int pid, int wpres, int pf )
|
||||
{
|
||||
int retval = SANE_STATUS_IO_ERROR;
|
||||
|
||||
if( wpres == pid ) {
|
||||
|
||||
if( WIFEXITED(pf)) {
|
||||
retval = WEXITSTATUS(pf);
|
||||
} else {
|
||||
|
||||
if( !WIFSIGNALED(pf)) {
|
||||
retval = SANE_STATUS_GOOD;
|
||||
} else {
|
||||
DBG( 1, "Child terminated by signal %d\n", WTERMSIG(pf));
|
||||
if( WTERMSIG(pf) == SIGTERM )
|
||||
retval = SANE_STATUS_GOOD;
|
||||
}
|
||||
}
|
||||
}
|
||||
return retval;
|
||||
}
|
||||
#endif
|
||||
|
||||
int
|
||||
sanei_thread_begin( int (func)(void *args), void* args )
|
||||
{
|
||||
int pid;
|
||||
#ifdef USE_PTHREAD
|
||||
struct sigaction act;
|
||||
pthread_t thread;
|
||||
|
||||
/* if signal handler for SIGPIPE is SIG_DFL, replace by SIG_IGN */
|
||||
if( sigaction( SIGPIPE, NULL, &act ) == 0 ) {
|
||||
|
||||
if( act.sa_handler == SIG_DFL ) {
|
||||
sigemptyset( &act.sa_mask );
|
||||
act.sa_flags = 0;
|
||||
act.sa_handler = SIG_IGN;
|
||||
|
||||
DBG( 2, "setting SIGPIPE to SIG_IGN\n" );
|
||||
sigaction( SIGPIPE, &act, NULL );
|
||||
}
|
||||
}
|
||||
|
||||
td.func = func;
|
||||
td.func_data = args;
|
||||
|
||||
pid = pthread_create( &thread, NULL, local_thread, &td );
|
||||
usleep( 1 );
|
||||
|
||||
if ( pid != 0 ) {
|
||||
DBG( 1, "pthread_create() failed with %d\n", pid );
|
||||
return -1;
|
||||
}
|
||||
|
||||
DBG( 2, "pthread_create() created thread %d\n", (int)thread );
|
||||
return (int)thread;
|
||||
#else
|
||||
pid = fork();
|
||||
if( pid < 0 ) {
|
||||
DBG( 1, "fork() failed\n" );
|
||||
return -1;
|
||||
}
|
||||
|
||||
if( pid == 0 ) {
|
||||
|
||||
/* run in child context... */
|
||||
int status = func( args );
|
||||
|
||||
/* don't use exit() since that would run the atexit() handlers */
|
||||
_exit( status );
|
||||
}
|
||||
|
||||
/* parents return */
|
||||
return pid;
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_kill( int pid, int sig)
|
||||
sanei_thread_sendsig( int pid, int sig )
|
||||
{
|
||||
#ifdef HAVE_OS2_H
|
||||
return DosKillThread( pid);
|
||||
#ifdef USE_PTHREAD
|
||||
DBG(2, "sanei_thread_sendsig() %d to thread(id=%d)\n", sig, pid);
|
||||
return pthread_kill((pthread_t)pid, sig );
|
||||
#else
|
||||
return kill( pid, sig);
|
||||
DBG(2, "sanei_thread_sendsig() %d to process (id=%d)\n", sig, pid);
|
||||
return kill( pid, sig );
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_waitpid( int pid, int *stat_loc, int options)
|
||||
sanei_thread_waitpid( int pid, int *status )
|
||||
{
|
||||
#ifdef HAVE_OS2_H
|
||||
return pid; /* DosWaitThread( (TID*) &pid, DCWW_WAIT);*/
|
||||
#ifdef USE_PTHREAD
|
||||
int *ls;
|
||||
#else
|
||||
return waitpid( pid, stat_loc, options);
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
sanei_thread_wait( int *stat_loc)
|
||||
{
|
||||
#ifdef HAVE_OS2_H
|
||||
*stat_loc = 0;
|
||||
return -1; /* return error because I don't know child pid */
|
||||
#else
|
||||
return wait( stat_loc);
|
||||
int ls;
|
||||
#endif
|
||||
int result, stat;
|
||||
|
||||
stat = 0;
|
||||
|
||||
DBG(2, "sanei_thread_waitpid() - %d\n", pid);
|
||||
#ifdef USE_PTHREAD
|
||||
result = pthread_join((pthread_t)pid, (void*)&ls );
|
||||
|
||||
if( 0 == result ) {
|
||||
if( PTHREAD_CANCELED == ls ) {
|
||||
DBG(2, "* thread has been canceled!\n" );
|
||||
stat = SANE_STATUS_GOOD;
|
||||
} else {
|
||||
stat = *ls;
|
||||
}
|
||||
DBG(2, "* result = %d (%p)\n", stat, (void*)status );
|
||||
result = pid;
|
||||
}
|
||||
/* call detach in any case to make sure that the thread resources
|
||||
* will be freed, when the thread has terminated
|
||||
*/
|
||||
DBG(2, "* detaching thread(%d)\n", pid );
|
||||
pthread_detach((pthread_t)pid);
|
||||
if (status)
|
||||
*status = stat;
|
||||
|
||||
restore_sigpipe();
|
||||
#else
|
||||
result = waitpid( pid, &ls, 0 );
|
||||
if((result < 0) && (errno == ECHILD)) {
|
||||
stat = SANE_STATUS_GOOD;
|
||||
result = pid;
|
||||
} else {
|
||||
stat = eval_wp_result( pid, result, ls );
|
||||
DBG(2, "* result = %d (%p)\n", stat, (void*)status );
|
||||
}
|
||||
if( status )
|
||||
*status = stat;
|
||||
#endif
|
||||
return result;
|
||||
}
|
||||
|
||||
#endif /* HAVE_OS2_H */
|
||||
|
||||
SANE_Status
|
||||
sanei_thread_get_status( int pid )
|
||||
{
|
||||
#if defined USE_PTHREAD || defined HAVE_OS2_H
|
||||
_VAR_NOT_USED( pid );
|
||||
|
||||
return td.status;
|
||||
#else
|
||||
int ls, stat, result;
|
||||
|
||||
stat = SANE_STATUS_IO_ERROR;
|
||||
if( pid > 0 ) {
|
||||
|
||||
result = waitpid( pid, &ls, WNOHANG );
|
||||
|
||||
stat = eval_wp_result( pid, result, ls );
|
||||
}
|
||||
return stat;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* END sanei_thread.c .......................................................*/
|
||||
|
|
|
@ -49,28 +49,46 @@
|
|||
#include <sane/sane.h>
|
||||
#include "../include/sane/sanei_wire.h"
|
||||
|
||||
#define BACKEND_NAME sanei_wire
|
||||
#include "../include/sane/sanei_debug.h"
|
||||
|
||||
void
|
||||
sanei_w_space (Wire *w, size_t howmuch)
|
||||
sanei_w_space (Wire * w, size_t howmuch)
|
||||
{
|
||||
size_t nbytes, left_over;
|
||||
int fd = w->io.fd;
|
||||
ssize_t nread, nwritten;
|
||||
|
||||
DBG (3, "sanei_w_space: %lu bytes for wire %d\n", (u_long) howmuch, fd);
|
||||
|
||||
if (howmuch > w->buffer.size)
|
||||
DBG (2, "sanei_w_space: bigger than buffer (%lu bytes), "
|
||||
"may be flush()\n", (u_long) w->buffer.size);
|
||||
|
||||
if (w->status != 0)
|
||||
return;
|
||||
{
|
||||
DBG (1, "sanei_w_space: wire is in invalid state %d\n",
|
||||
w->status);
|
||||
return;
|
||||
}
|
||||
|
||||
if (w->buffer.curr + howmuch > w->buffer.end)
|
||||
{
|
||||
DBG (4, "sanei_w_space: free buffer size is %lu\n",
|
||||
(u_long) (w->buffer.end - w->buffer.curr));
|
||||
switch (w->direction)
|
||||
{
|
||||
case WIRE_ENCODE:
|
||||
nbytes = w->buffer.curr - w->buffer.start;
|
||||
w->buffer.curr = w->buffer.start;
|
||||
DBG (4, "sanei_w_space: ENCODE: sending %lu bytes\n",
|
||||
(u_long) nbytes);
|
||||
while (nbytes > 0)
|
||||
{
|
||||
nwritten = (*w->io.write) (fd, w->buffer.curr, nbytes);
|
||||
if (nwritten < 0)
|
||||
{
|
||||
DBG (1, "sanei_w_space: ENCODE: write failed (%d)\n", errno);
|
||||
w->status = errno;
|
||||
return;
|
||||
}
|
||||
|
@ -79,24 +97,37 @@ sanei_w_space (Wire *w, size_t howmuch)
|
|||
}
|
||||
w->buffer.curr = w->buffer.start;
|
||||
w->buffer.end = w->buffer.start + w->buffer.size;
|
||||
DBG (4, "sanei_w_space: ENCODE: free buffer is now %lu\n",
|
||||
(u_long) w->buffer.size);
|
||||
break;
|
||||
|
||||
case WIRE_DECODE:
|
||||
left_over = w->buffer.end - w->buffer.curr;
|
||||
|
||||
if ((signed)left_over < 0)
|
||||
return;
|
||||
|
||||
if ((signed) left_over < 0)
|
||||
{
|
||||
DBG (1, "sanei_w_space: DECODE: buffer underflow\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (left_over)
|
||||
memcpy (w->buffer.start, w->buffer.curr, left_over);
|
||||
{
|
||||
DBG (4, "sanei_w_space: DECODE: %lu bytes left in buffer\n",
|
||||
(u_long) left_over);
|
||||
memmove (w->buffer.start, w->buffer.curr, left_over);
|
||||
}
|
||||
w->buffer.curr = w->buffer.start;
|
||||
w->buffer.end = w->buffer.start + left_over;
|
||||
|
||||
do {
|
||||
DBG (4, "sanei_w_space: DECODE: receiving data\n");
|
||||
do
|
||||
{
|
||||
nread = (*w->io.read) (fd, w->buffer.end,
|
||||
w->buffer.size - left_over);
|
||||
if (nread <= 0)
|
||||
{
|
||||
DBG (2, "sanei_w_space: DECODE: no data received (%d)\n",
|
||||
errno);
|
||||
if (nread == 0)
|
||||
errno = EINVAL;
|
||||
w->status = errno;
|
||||
|
@ -104,32 +135,43 @@ sanei_w_space (Wire *w, size_t howmuch)
|
|||
}
|
||||
left_over += nread;
|
||||
w->buffer.end += nread;
|
||||
} while (left_over < howmuch);
|
||||
}
|
||||
while (left_over < howmuch);
|
||||
DBG (4, "sanei_w_space: DECODE: %lu bytes read\n",
|
||||
(u_long) (w->buffer.end - w->buffer.start));
|
||||
break;
|
||||
|
||||
case WIRE_FREE:
|
||||
DBG (4, "sanei_w_space: FREE: doing nothing for free operation\n");
|
||||
break;
|
||||
}
|
||||
}
|
||||
DBG (4, "sanei_w_space: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_void (Wire *w)
|
||||
sanei_w_void (Wire * w)
|
||||
{
|
||||
DBG (3, "sanei_w_void: wire %d (void debug output)\n", w->io.fd);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_array (Wire *w, SANE_Word *len_ptr, void **v, WireCodecFunc w_element,
|
||||
size_t element_size)
|
||||
sanei_w_array (Wire * w, SANE_Word * len_ptr, void **v,
|
||||
WireCodecFunc w_element, size_t element_size)
|
||||
{
|
||||
SANE_Word len;
|
||||
char *val;
|
||||
int i;
|
||||
|
||||
DBG (3, "sanei_w_array: wire %d, elements of size %lu\n", w->io.fd,
|
||||
(u_long) element_size);
|
||||
|
||||
if (w->direction == WIRE_FREE)
|
||||
{
|
||||
if (*len_ptr && *v)
|
||||
{
|
||||
DBG (4, "sanei_w_array: FREE: freeing array (%d elements)\n",
|
||||
*len_ptr);
|
||||
val = *v;
|
||||
for (i = 0; i < *len_ptr; ++i)
|
||||
{
|
||||
|
@ -137,209 +179,334 @@ sanei_w_array (Wire *w, SANE_Word *len_ptr, void **v, WireCodecFunc w_element,
|
|||
val += element_size;
|
||||
}
|
||||
free (*v);
|
||||
w->allocated_memory -= (*len_ptr * element_size);
|
||||
}
|
||||
else
|
||||
DBG (1, "sanei_w_array: FREE: tried to free array but *len_ptr or *v "
|
||||
"was NULL\n");
|
||||
|
||||
DBG (4, "sanei_w_array: FREE: done\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (w->direction == WIRE_ENCODE)
|
||||
len = *len_ptr;
|
||||
|
||||
DBG (4, "sanei_w_array: send/receive array length\n");
|
||||
sanei_w_word (w, &len);
|
||||
|
||||
if (w->status)
|
||||
{
|
||||
DBG (1, "sanei_w_array: bad status: %d\n", w->status);
|
||||
return;
|
||||
}
|
||||
DBG (4, "sanei_w_array: array has %d elements\n", len);
|
||||
|
||||
if (w->direction == WIRE_DECODE)
|
||||
{
|
||||
*len_ptr = len;
|
||||
if (len)
|
||||
{
|
||||
if (((unsigned int) len) > MAX_MEM
|
||||
|| ((unsigned int) len * element_size) > MAX_MEM
|
||||
|| (w->allocated_memory + len * element_size) > MAX_MEM)
|
||||
{
|
||||
DBG (0, "sanei_w_array: DECODE: maximum amount of allocated memory "
|
||||
"exceeded (limit: %u, new allocation: %u, total: %u bytes)\n",
|
||||
MAX_MEM, len * element_size, MAX_MEM + len * element_size);
|
||||
w->status = ENOMEM;
|
||||
return;
|
||||
}
|
||||
*v = malloc (len * element_size);
|
||||
if (*v == 0)
|
||||
{
|
||||
/* Malloc failed, so return an error. */
|
||||
DBG (1, "sanei_w_array: DECODE: not enough free memory\n");
|
||||
w->status = ENOMEM;
|
||||
return;
|
||||
}
|
||||
memset (*v, 0, len * element_size);
|
||||
w->allocated_memory += (len * element_size);
|
||||
}
|
||||
else
|
||||
*v = 0;
|
||||
}
|
||||
|
||||
val = *v;
|
||||
DBG (4, "sanei_w_array: transferring array elements\n");
|
||||
for (i = 0; i < len; ++i)
|
||||
{
|
||||
(*w_element) (w, val);
|
||||
val += element_size;
|
||||
if (w->status)
|
||||
{
|
||||
DBG (1, "sanei_w_array: bad status: %d\n", w->status);
|
||||
return;
|
||||
}
|
||||
}
|
||||
DBG (4, "sanei_w_array: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_ptr (Wire *w, void **v, WireCodecFunc w_value, size_t value_size)
|
||||
sanei_w_ptr (Wire * w, void **v, WireCodecFunc w_value, size_t value_size)
|
||||
{
|
||||
SANE_Word is_null;
|
||||
|
||||
DBG (3, "sanei_w_ptr: wire %d, value pointer at is %lu bytes\n", w->io.fd,
|
||||
(u_long) value_size);
|
||||
|
||||
if (w->direction == WIRE_FREE)
|
||||
{
|
||||
if (*v && value_size)
|
||||
{
|
||||
DBG (4, "sanei_w_ptr: FREE: freeing value\n");
|
||||
(*w_value) (w, *v);
|
||||
free (*v);
|
||||
w->allocated_memory -= value_size;
|
||||
}
|
||||
else
|
||||
DBG (1, "sanei_w_ptr: FREE: tried to free value but *v or value_size "
|
||||
"was NULL\n");
|
||||
|
||||
DBG (4, "sanei_w_ptr: FREE: done\n");
|
||||
return;
|
||||
}
|
||||
if (w->direction == WIRE_ENCODE)
|
||||
is_null = (*v == 0);
|
||||
|
||||
DBG (4, "sanei_w_ptr: send/receive is_null\n");
|
||||
sanei_w_word (w, &is_null);
|
||||
if (w->status)
|
||||
{
|
||||
DBG (1, "sanei_w_ptr: bad status: %d\n", w->status);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!is_null)
|
||||
{
|
||||
if (w->direction == WIRE_DECODE)
|
||||
{
|
||||
DBG (4, "sanei_w_ptr: DECODE: receive data pointed at\n");
|
||||
if (value_size > MAX_MEM)
|
||||
{
|
||||
DBG (0, "sanei_w_ptr: DECODE: maximum amount of allocated memory "
|
||||
"exceeded (limit: %u, new allocation: %u, total: %u bytes)\n",
|
||||
MAX_MEM, value_size, (w->allocated_memory + value_size));
|
||||
w->status = ENOMEM;
|
||||
return;
|
||||
}
|
||||
|
||||
*v = malloc (value_size);
|
||||
if (*v == 0)
|
||||
{
|
||||
/* Malloc failed, so return an error. */
|
||||
DBG (1, "sanei_w_ptr: DECODE: not enough free memory\n");
|
||||
w->status = ENOMEM;
|
||||
return;
|
||||
}
|
||||
w->allocated_memory += value_size;
|
||||
memset (*v, 0, value_size);
|
||||
}
|
||||
(*w_value) (w, *v);
|
||||
}
|
||||
else if (w->direction == WIRE_DECODE)
|
||||
*v = 0;
|
||||
|
||||
DBG (4, "sanei_w_ptr: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_byte (Wire *w, SANE_Byte *v)
|
||||
sanei_w_byte (Wire * w, SANE_Byte * v)
|
||||
{
|
||||
DBG (3, "sanei_w_byte: wire %d\n", w->io.fd);
|
||||
(*w->codec.w_byte) (w, v);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_byte: value = %d\n", *v);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_char (Wire *w, SANE_Char *v)
|
||||
sanei_w_char (Wire * w, SANE_Char * v)
|
||||
{
|
||||
DBG (3, "sanei_w_char: wire %d\n", w->io.fd);
|
||||
(*w->codec.w_char) (w, v);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_char: value = %d\n", *v);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_word (Wire *w, SANE_Word *v)
|
||||
sanei_w_word (Wire * w, SANE_Word * v)
|
||||
{
|
||||
DBG (3, "sanei_w_word: wire %d\n", w->io.fd);
|
||||
(*w->codec.w_word) (w, v);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_word: value = %d\n", *v);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_string (Wire *w, SANE_String *v)
|
||||
sanei_w_string (Wire * w, SANE_String * v)
|
||||
{
|
||||
DBG (3, "sanei_w_string: wire %d\n", w->io.fd);
|
||||
(*w->codec.w_string) (w, v);
|
||||
if (w->direction != WIRE_FREE && w->status == 0)
|
||||
DBG (4, "sanei_w_string: value = %s\n", *v);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_status (Wire *w, SANE_Status *v)
|
||||
sanei_w_status (Wire * w, SANE_Status * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_status: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_status: value = %d\n", word);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_bool (Wire *w, SANE_Bool *v)
|
||||
sanei_w_bool (Wire * w, SANE_Bool * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_bool: wire %d\n", w->io.fd);
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_bool: value = %s\n",
|
||||
((word == SANE_TRUE) ? ("true") : ("false")));
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_constraint_type (Wire * w, SANE_Constraint_Type * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_constraint_type: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_constraint_type: value = %d\n", word);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_constraint_type (Wire *w, SANE_Constraint_Type *v)
|
||||
sanei_w_value_type (Wire * w, SANE_Value_Type * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_value_type: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_value_type: value = %d\n", word);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_value_type (Wire *w, SANE_Value_Type *v)
|
||||
sanei_w_unit (Wire * w, SANE_Unit * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_unit: wire %d\n", w->io.fd);
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_unit: value = %d\n", word);
|
||||
/* gosh... all the sane_w_something should be a macro or something */
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_action (Wire * w, SANE_Action * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_action: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_action: value = %d\n", word);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_unit (Wire *w, SANE_Unit *v)
|
||||
sanei_w_frame (Wire * w, SANE_Frame * v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
DBG (3, "sanei_w_frame: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_frame: value = %d\n", word);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_action (Wire *w, SANE_Action *v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_frame (Wire *w, SANE_Frame *v)
|
||||
{
|
||||
SANE_Word word = *v;
|
||||
|
||||
sanei_w_word (w, &word);
|
||||
if (w->direction == WIRE_DECODE)
|
||||
*v = word;
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_range (Wire *w, SANE_Range *v)
|
||||
sanei_w_range (Wire * w, SANE_Range * v)
|
||||
{
|
||||
DBG (3, "sanei_w_range: wire %d\n", w->io.fd);
|
||||
sanei_w_word (w, &v->min);
|
||||
sanei_w_word (w, &v->max);
|
||||
sanei_w_word (w, &v->quant);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_range: min/max/step = %f/%f/%f\n",
|
||||
SANE_UNFIX (v->min), SANE_UNFIX (v->max), SANE_UNFIX (v->quant));
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_device (Wire *w, SANE_Device *v)
|
||||
sanei_w_device (Wire * w, SANE_Device * v)
|
||||
{
|
||||
sanei_w_string (w, (SANE_String *) &v->name);
|
||||
sanei_w_string (w, (SANE_String *) &v->vendor);
|
||||
sanei_w_string (w, (SANE_String *) &v->model);
|
||||
sanei_w_string (w, (SANE_String *) &v->type);
|
||||
DBG (3, "sanei_w_device: wire %d\n", w->io.fd);
|
||||
sanei_w_string (w, (SANE_String *) & v->name);
|
||||
sanei_w_string (w, (SANE_String *) & v->vendor);
|
||||
sanei_w_string (w, (SANE_String *) & v->model);
|
||||
sanei_w_string (w, (SANE_String *) & v->type);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_device: %s %s from %s (%s)\n", v->name, v->model,
|
||||
v->vendor, v->type);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_device_ptr (Wire *w, SANE_Device **v)
|
||||
sanei_w_device_ptr (Wire * w, SANE_Device ** v)
|
||||
{
|
||||
sanei_w_ptr (w, (void **) v,
|
||||
(WireCodecFunc) sanei_w_device, sizeof (**v));
|
||||
DBG (3, "sanei_w_device_ptr: wire %d\n", w->io.fd);
|
||||
sanei_w_ptr (w, (void **) v, (WireCodecFunc) sanei_w_device, sizeof (**v));
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_device_ptr: device struct at %p\n", *v);
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_option_descriptor (Wire *w, SANE_Option_Descriptor *v)
|
||||
sanei_w_option_descriptor (Wire * w, SANE_Option_Descriptor * v)
|
||||
{
|
||||
SANE_Word len;
|
||||
|
||||
sanei_w_string (w, (SANE_String *) &v->name);
|
||||
sanei_w_string (w, (SANE_String *) &v->title);
|
||||
sanei_w_string (w, (SANE_String *) &v->desc);
|
||||
DBG (3, "sanei_w_option_descriptor: wire %d\n", w->io.fd);
|
||||
|
||||
sanei_w_string (w, (SANE_String *) & v->name);
|
||||
sanei_w_string (w, (SANE_String *) & v->title);
|
||||
sanei_w_string (w, (SANE_String *) & v->desc);
|
||||
sanei_w_value_type (w, &v->type);
|
||||
sanei_w_unit (w, &v->unit);
|
||||
sanei_w_word (w, &v->size);
|
||||
sanei_w_word (w, &v->cap);
|
||||
sanei_w_constraint_type (w, &v->constraint_type);
|
||||
|
||||
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4, "sanei_w_option_descriptor: option %s\n", v->name);
|
||||
|
||||
switch (v->constraint_type)
|
||||
{
|
||||
case SANE_CONSTRAINT_NONE:
|
||||
|
@ -354,117 +521,174 @@ sanei_w_option_descriptor (Wire *w, SANE_Option_Descriptor *v)
|
|||
if (w->direction != WIRE_DECODE)
|
||||
len = v->constraint.word_list[0] + 1;
|
||||
sanei_w_array (w, &len, (void **) &v->constraint.word_list,
|
||||
w->codec.w_word, sizeof(SANE_Word));
|
||||
w->codec.w_word, sizeof (SANE_Word));
|
||||
break;
|
||||
|
||||
case SANE_CONSTRAINT_STRING_LIST:
|
||||
if (w->direction != WIRE_DECODE)
|
||||
{
|
||||
for (len = 0; v->constraint.string_list[len]; ++len);
|
||||
++len; /* send NULL string, too */
|
||||
++len; /* send NULL string, too */
|
||||
}
|
||||
sanei_w_array (w, &len, (void **) &v->constraint.string_list,
|
||||
w->codec.w_string, sizeof(SANE_String));
|
||||
w->codec.w_string, sizeof (SANE_String));
|
||||
break;
|
||||
}
|
||||
DBG (4, "sanei_w_option_descriptor: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_option_descriptor_ptr (Wire *w, SANE_Option_Descriptor **v)
|
||||
sanei_w_option_descriptor_ptr (Wire * w, SANE_Option_Descriptor ** v)
|
||||
{
|
||||
DBG (3, "sanei_w_option_descriptor_ptr: wire %d\n", w->io.fd);
|
||||
sanei_w_ptr (w, (void **) v,
|
||||
(WireCodecFunc) sanei_w_option_descriptor, sizeof (**v));
|
||||
DBG (4, "sanei_w_option_descriptor_ptr: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_parameters (Wire *w, SANE_Parameters *v)
|
||||
sanei_w_parameters (Wire * w, SANE_Parameters * v)
|
||||
{
|
||||
DBG (3, "sanei_w_parameters: wire %d\n", w->io.fd);
|
||||
sanei_w_frame (w, &v->format);
|
||||
sanei_w_bool (w, &v->last_frame);
|
||||
sanei_w_word (w, &v->bytes_per_line);
|
||||
sanei_w_word (w, &v->pixels_per_line);
|
||||
sanei_w_word (w, &v->lines);
|
||||
sanei_w_word (w, &v->depth);
|
||||
if (w->direction != WIRE_FREE)
|
||||
DBG (4,
|
||||
"sanei_w_parameters: format/last/bpl/ppl/lines/depth = "
|
||||
"%d/%d/%d/%d/%d/%d\n", v->format, v->last_frame, v->bytes_per_line,
|
||||
v->pixels_per_line, v->lines, v->depth);
|
||||
}
|
||||
|
||||
static void
|
||||
flush (Wire *w)
|
||||
flush (Wire * w)
|
||||
{
|
||||
DBG (3, "flush: wire %d\n", w->io.fd);
|
||||
if (w->direction == WIRE_ENCODE)
|
||||
sanei_w_space (w, w->buffer.size + 1);
|
||||
else if (w->direction == WIRE_DECODE)
|
||||
w->buffer.curr = w->buffer.end = w->buffer.start;
|
||||
if (w->status != 0)
|
||||
DBG (2, "flush: error status %d\n", w->status);
|
||||
DBG (4, "flush: wire flushed\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_set_dir (Wire *w, WireDirection dir)
|
||||
sanei_w_set_dir (Wire * w, WireDirection dir)
|
||||
{
|
||||
DBG (3, "sanei_w_set_dir: wire %d, old direction WIRE_%s\n", w->io.fd,
|
||||
w->direction == WIRE_ENCODE ? "ENCODE" :
|
||||
(w->direction == WIRE_DECODE ? "DECODE" : "FREE"));
|
||||
if (w->direction == WIRE_DECODE && w->buffer.curr != w->buffer.end)
|
||||
DBG (1, "sanei_w_set_dir: WARNING: will delete %lu bytes from buffer\n",
|
||||
(u_long) (w->buffer.end - w->buffer.curr));
|
||||
flush (w);
|
||||
w->direction = dir;
|
||||
DBG (4, "sanei_w_set_dir: direction changed\n");
|
||||
flush (w);
|
||||
DBG (3, "sanei_w_set_dir: wire %d, new direction WIRE_%s\n", w->io.fd,
|
||||
dir == WIRE_ENCODE ? "ENCODE" :
|
||||
(dir == WIRE_DECODE ? "DECODE" : "FREE"));
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_call (Wire *w,
|
||||
sanei_w_call (Wire * w,
|
||||
SANE_Word procnum,
|
||||
WireCodecFunc w_arg, void *arg,
|
||||
WireCodecFunc w_reply, void *reply)
|
||||
{
|
||||
|
||||
DBG (3, "sanei_w_call: wire %d (old status %d)\n", w->io.fd, w->status);
|
||||
w->status = 0;
|
||||
sanei_w_set_dir (w, WIRE_ENCODE);
|
||||
|
||||
DBG (4, "sanei_w_call: sending request (procedure number: %d)\n", procnum);
|
||||
sanei_w_word (w, &procnum);
|
||||
(*w_arg) (w, arg);
|
||||
|
||||
if (w->status == 0)
|
||||
{
|
||||
DBG (4, "sanei_w_call: receiving reply\n");
|
||||
sanei_w_set_dir (w, WIRE_DECODE);
|
||||
(*w_reply) (w, reply);
|
||||
}
|
||||
|
||||
if (w->status != 0)
|
||||
DBG (2, "sanei_w_call: error status %d\n", w->status);
|
||||
DBG (4, "sanei_w_call: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_reply (Wire *w, WireCodecFunc w_reply, void *reply)
|
||||
sanei_w_reply (Wire * w, WireCodecFunc w_reply, void *reply)
|
||||
{
|
||||
DBG (3, "sanei_w_reply: wire %d (old status %d)\n", w->io.fd, w->status);
|
||||
w->status = 0;
|
||||
sanei_w_set_dir (w, WIRE_ENCODE);
|
||||
(*w_reply) (w, reply);
|
||||
flush (w);
|
||||
if (w->status != 0)
|
||||
DBG (2, "sanei_w_reply: error status %d\n", w->status);
|
||||
DBG (4, "sanei_w_reply: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_free (Wire *w, WireCodecFunc w_reply, void *reply)
|
||||
sanei_w_free (Wire * w, WireCodecFunc w_reply, void *reply)
|
||||
{
|
||||
WireDirection saved_dir = w->direction;
|
||||
|
||||
DBG (3, "sanei_w_free: wire %d\n", w->io.fd);
|
||||
|
||||
w->direction = WIRE_FREE;
|
||||
(*w_reply) (w, reply);
|
||||
w->direction = saved_dir;
|
||||
|
||||
if (w->status != 0)
|
||||
DBG (2, "sanei_w_free: error status %d\n", w->status);
|
||||
DBG (4, "sanei_w_free: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_init (Wire *w, void (*codec_init_func)(Wire *))
|
||||
sanei_w_init (Wire * w, void (*codec_init_func) (Wire *))
|
||||
{
|
||||
DBG_INIT ();
|
||||
|
||||
DBG (3, "sanei_w_init: initializing\n");
|
||||
w->status = 0;
|
||||
w->direction = WIRE_ENCODE;
|
||||
w->buffer.size = 8192;
|
||||
w->buffer.start = malloc (w->buffer.size);
|
||||
|
||||
|
||||
if (w->buffer.start == 0)
|
||||
/* Malloc failed, so return an error. */
|
||||
w->status = ENOMEM;
|
||||
{
|
||||
/* Malloc failed, so return an error. */
|
||||
w->status = ENOMEM;
|
||||
DBG (1, "sanei_w_init: not enough free memory\n");
|
||||
}
|
||||
|
||||
w->buffer.curr = w->buffer.start;
|
||||
w->buffer.end = w->buffer.start + w->buffer.size;
|
||||
if (codec_init_func != 0)
|
||||
(*codec_init_func) (w);
|
||||
{
|
||||
DBG (4, "sanei_w_init: initializing codec\n");
|
||||
(*codec_init_func) (w);
|
||||
}
|
||||
w->allocated_memory = 0;
|
||||
DBG (4, "sanei_w_init: done\n");
|
||||
}
|
||||
|
||||
void
|
||||
sanei_w_exit (Wire *w)
|
||||
sanei_w_exit (Wire * w)
|
||||
{
|
||||
DBG (3, "sanei_w_exit: wire %d\n", w->io.fd);
|
||||
if (w->buffer.start)
|
||||
free(w->buffer.start);
|
||||
{
|
||||
DBG (4, "sanei_w_exit: freeing buffer\n");
|
||||
free (w->buffer.start);
|
||||
}
|
||||
w->buffer.start = 0;
|
||||
w->buffer.size = 0;
|
||||
DBG (4, "sanei_w_exit: done\n");
|
||||
}
|
||||
|
|
Ładowanie…
Reference in New Issue