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114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/*
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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* Modified for FL2 by Conor McCarthy
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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/*-*************************************
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* Dependencies
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***************************************/
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#include "fast-lzma2.h"
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#include "fl2_errors.h"
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#include "fl2_internal.h"
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#include "lzma2_enc.h"
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/*-****************************************
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* Version
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******************************************/
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FL2LIB_API unsigned FL2LIB_CALL FL2_versionNumber(void) { return FL2_VERSION_NUMBER; }
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FL2LIB_API const char* FL2LIB_CALL FL2_versionString(void) { return FL2_VERSION_STRING; }
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/*-****************************************
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* Compression helpers
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******************************************/
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FL2LIB_API size_t FL2LIB_CALL FL2_compressBound(size_t srcSize)
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{
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return LZMA2_compressBound(srcSize);
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}
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/*-****************************************
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* FL2 Error Management
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******************************************/
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HINT_INLINE
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unsigned IsError(size_t code)
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{
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return (code > FL2_ERROR(maxCode));
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}
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/*! FL2_isError() :
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* tells if a return value is an error code */
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FL2LIB_API unsigned FL2LIB_CALL FL2_isError(size_t code)
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{
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return IsError(code);
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}
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/*! FL2_isTimedOut() :
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* tells if a return value is the timeout code */
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FL2LIB_API unsigned FL2LIB_CALL FL2_isTimedOut(size_t code)
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{
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return (code == FL2_ERROR(timedOut));
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}
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/*! FL2_getErrorName() :
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* provides error code string from function result (useful for debugging) */
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FL2LIB_API const char* FL2LIB_CALL FL2_getErrorName(size_t code)
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{
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return FL2_getErrorString(FL2_getErrorCode(code));
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}
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/*! FL2_getError() :
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* convert a `size_t` function result into a proper FL2_errorCode enum */
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FL2LIB_API FL2_ErrorCode FL2LIB_CALL FL2_getErrorCode(size_t code)
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{
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if (!IsError(code))
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return (FL2_ErrorCode)0;
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return (FL2_ErrorCode)(0 - code);
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}
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/*! FL2_getErrorString() :
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* provides error code string from enum */
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FL2LIB_API const char* FL2LIB_CALL FL2_getErrorString(FL2_ErrorCode code)
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{
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static const char* const notErrorCode = "Unspecified error code";
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switch (code)
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{
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case PREFIX(no_error): return "No error detected";
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case PREFIX(GENERIC): return "Error (generic)";
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case PREFIX(internal): return "Internal error (bug)";
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case PREFIX(corruption_detected): return "Corrupted block detected";
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case PREFIX(checksum_wrong): return "Restored data doesn't match checksum";
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case PREFIX(parameter_unsupported): return "Unsupported parameter";
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case PREFIX(parameter_outOfBound): return "Parameter is out of bound";
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case PREFIX(lclpMax_exceeded): return "Parameters lc+lp > 4";
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case PREFIX(stage_wrong): return "Not possible at this stage of encoding";
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case PREFIX(init_missing): return "Context should be init first";
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case PREFIX(memory_allocation): return "Allocation error : not enough memory";
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case PREFIX(dstSize_tooSmall): return "Destination buffer is too small";
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case PREFIX(srcSize_wrong): return "Src size is incorrect";
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case PREFIX(canceled): return "Processing was canceled by a call to FL2_cancelCStream() or FL2_cancelDStream()";
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case PREFIX(buffer): return "Streaming progress halted due to buffer(s) full/empty";
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case PREFIX(timedOut): return "Wait timed out. Timeouts should be handled before errors using FL2_isTimedOut()";
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/* following error codes are not stable and may be removed or changed in a future version */
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case PREFIX(maxCode):
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default: return notErrorCode;
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}
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}
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/*! g_debuglog_enable :
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* turn on/off debug traces (global switch) */
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#if defined(FL2_DEBUG) && (FL2_DEBUG >= 2)
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int g_debuglog_enable = 1;
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#endif
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