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author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:13:01 +0100 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:13:01 +0100 |
commit | ffa8801644a7d53cc1c785e3450f794c07a14eb0 (patch) | |
tree | 8d72a18a9a08b9151d12badcb1c78ce06a059f62 /backend/genesys_error.h | |
parent | 1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff) |
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys_error.h')
-rw-r--r-- | backend/genesys_error.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/backend/genesys_error.h b/backend/genesys_error.h deleted file mode 100644 index d456581..0000000 --- a/backend/genesys_error.h +++ /dev/null @@ -1,202 +0,0 @@ -/* sane - Scanner Access Now Easy. - - Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt> - - This file is part of the SANE package. - - 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 (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. - - 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., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, 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. -*/ - -#ifndef BACKEND_GENESYS_ERROR_H -#define BACKEND_GENESYS_ERROR_H - -#include "../include/sane/config.h" -#include "../include/sane/sane.h" -#include "../include/sane/sanei_backend.h" - -#include <stdexcept> -#include <cstring> -#include <string> - -#define DBG_error0 0 /* errors/warnings printed even with devuglevel 0 */ -#define DBG_error 1 /* fatal errors */ -#define DBG_init 2 /* initialization and scanning time messages */ -#define DBG_warn 3 /* warnings and non-fatal errors */ -#define DBG_info 4 /* informational messages */ -#define DBG_proc 5 /* starting/finishing functions */ -#define DBG_io 6 /* io functions */ -#define DBG_io2 7 /* io functions that are called very often */ -#define DBG_data 8 /* log image data */ - -class SaneException : std::exception { -public: - SaneException(SANE_Status status) : status_(status) - { - set_msg(nullptr); - } - - SaneException(SANE_Status status, const char* msg) : status_(status) - { - set_msg(msg); - } - - SaneException(const char* msg) : SaneException(SANE_STATUS_INVAL, msg) {} - - SANE_Status status() const { return status_; } - virtual const char* what() const noexcept override { return msg_.c_str(); } - -private: - - void set_msg(const char* msg) - { - const char* status_msg = sane_strstatus(status_); - std::size_t status_msg_len = std::strlen(status_msg); - - if (msg) { - std::size_t msg_len = std::strlen(msg); - msg_.reserve(msg_len + status_msg_len + 3); - msg_ = msg; - msg_ += " : "; - msg_ += status_msg; - return; - } - - msg_.reserve(status_msg_len); - msg_ = status_msg; - } - - std::string msg_; - SANE_Status status_; -}; - -/** - * call a function and return on error - */ -#define RIE(function) \ - do { status = function; \ - if (status != SANE_STATUS_GOOD) \ - { \ - DBG(DBG_error, "%s: %s\n", __func__, sane_strstatus (status)); \ - return status; \ - } \ - } while (SANE_FALSE) - -// call a function and throw an exception on error -#define TIE(function) \ - do { \ - SANE_Status tmp_status = function; \ - if (tmp_status != SANE_STATUS_GOOD) { \ - throw SaneException(tmp_status); \ - } \ - } while (false) - -#define DBGSTART DBG (DBG_proc, "%s start\n", __func__); -#define DBGCOMPLETED DBG (DBG_proc, "%s completed\n", __func__); - -class DebugMessageHelper { -public: - static constexpr unsigned MAX_BUF_SIZE = 120; - - DebugMessageHelper(const char* func); - DebugMessageHelper(const char* func, const char* format, ...) - #ifdef __GNUC__ - __attribute__((format(printf, 3, 4))) - #endif - ; - - ~DebugMessageHelper(); - - void status(const char* msg) { vstatus("%s", msg); } - void vstatus(const char* format, ...) - #ifdef __GNUC__ - __attribute__((format(printf, 2, 3))) - #endif - ; - - void clear() { msg_[0] = '\n'; } - -private: - const char* func_ = nullptr; - char msg_[MAX_BUF_SIZE]; - unsigned num_exceptions_on_enter_ = 0; -}; - -#define DBG_HELPER(var) DebugMessageHelper var(__func__) -#define DBG_HELPER_ARGS(var, ...) DebugMessageHelper var(__func__, __VA_ARGS__) - -template<class F> -SANE_Status wrap_exceptions_to_status_code(const char* func, F&& function) -{ - try { - return function(); - } catch (const SaneException& exc) { - return exc.status(); - } catch (const std::bad_alloc& exc) { - return SANE_STATUS_NO_MEM; - } catch (const std::exception& exc) { - DBG(DBG_error, "%s: got uncaught exception: %s\n", func, exc.what()); - return SANE_STATUS_INVAL; - } catch (...) { - DBG(DBG_error, "%s: got unknown uncaught exception\n", func); - return SANE_STATUS_INVAL; - } -} - -template<class F> -void catch_all_exceptions(const char* func, F&& function) -{ - try { - function(); - } catch (const SaneException& exc) { - DBG(DBG_error, "%s: got exception: %s\n", func, exc.what()); - } catch (const std::bad_alloc& exc) { - DBG(DBG_error, "%s: got exception: could not allocate memory: %s\n", func, exc.what()); - } catch (const std::exception& exc) { - DBG(DBG_error, "%s: got uncaught exception: %s\n", func, exc.what()); - } catch (...) { - DBG(DBG_error, "%s: got unknown uncaught exception\n", func); - } -} - -inline void wrap_status_code_to_exception(SANE_Status status) -{ - if (status == SANE_STATUS_GOOD) - return; - throw SaneException(status); -} - -#endif // BACKEND_GENESYS_ERROR_H |