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69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
// Copyright 2022 Dietrich Epp.
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// This file is part of SyncFiles. SyncFiles is licensed under the terms of the
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// Mozilla Public License, version 2.0. See LICENSE.txt for details.
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#ifndef MACOS_ERROR_H
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#define MACOS_ERROR_H
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// Error codes, corresponding to messages in a STR# resource. This should be
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// kept in sync with STR# rSTRS_Errors in resources.r.
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typedef enum {
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// An unknown error occurred.
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kErrUnknown = 1,
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// An internal error occurred.
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kErrInternal,
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// Out of memory.
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kErrOutOfMemory,
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// Could not save project "^1".
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kErrCouldNotSaveProject,
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} ErrorCode;
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// ExitError shows an error dialog with the given error message, then quits the
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// program.
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void ExitError(ErrorCode errCode);
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// ExitErrorOS shows an error dialog with the given error message and an OS
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// error code, then quits the program.
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void ExitErrorOS(ErrorCode errCode, short osErr);
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// ExitMemError shows an out of memory error and quits the program.
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void ExitMemError(void);
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// ExitAssert shows an assertion error and quits the program. The message may be
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// NULL.
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void ExitAssert(const unsigned char *file, int line,
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const unsigned char *message);
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// EXIT_ASSERT shows an assertion error and quits the program. The message may
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// be NULL.
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#define EXIT_ASSERT(str) ExitAssert("\p" __FILE__, __LINE__, str)
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// ASSERT checks that the given condition is true. Otherwise, it displays an
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// error message and quits the program.
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#define ASSERT(p) \
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do { \
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if (!(p)) \
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ExitAssert("\p" __FILE__, __LINE__, "\p" #p); \
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} while (0)
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// An ErrorParams contains the parameters for displaying en error alert window.
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// This structure should be zeroed before use, in case additional fields are
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// added.
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struct ErrorParams {
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// The application error code. If this is zero, it will be treated as
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// kErrInternal.
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ErrorCode err;
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// The OS error code. This is displayed at the end of the error message,
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// unless it is zero.
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short osErr;
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// If the error messages contain any string substitutions like "^1", those
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// substitutions are replaced with this string.
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const unsigned char *strParam;
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};
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// ShowError shows an error alert window to the user.
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void ShowError(const struct ErrorParams *p);
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#endif
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