Imported to git.

1 files changed, 85 insertions, 0 deletions

diff --git a/src/liblzma/api/lzma/init.h b/src/liblzma/api/lzma/init.h
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+/**
+ * \file        lzma/init.h
+ * \brief       Initializations
+ *
+ * \author      Copyright (C) 1999-2006 Igor Pavlov
+ * \author      Copyright (C) 2007 Lasse Collin
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ */
+
+#ifndef LZMA_H_INTERNAL
+#	error Never include this file directly. Use <lzma.h> instead.
+#endif
+
+
+/**
+ * \brief       Initialize all internal static variables
+ *
+ * Depending on the build options, liblzma may have some internal static
+ * variables, that must be initialized before using any other part of
+ * the library (*). It is recommended to do these initializations in the very
+ * beginning of the application by calling appropriate initialization function.
+ *
+ * (*) There are some exceptions to this rule. FIXME
+ *
+ * The initialization functions are not necessarily thread-safe, thus the
+ * required initializations must be done before creating any threads. (The
+ * rest of the functions of liblzma are thread-safe.) Calling the
+ * initialization functions multiple times does no harm, although it
+ * still shouldn't be done when there are multiple threads running.
+ *
+ * lzma_init() initializes all internal static variables by calling
+ * lzma_lzma_init_encoder() and lzma_init_decoder().
+ *
+ * If you need only encoder, decoder, or neither-encoder-nor-decoder
+ * functions, you may use other initialization functions, which initialize
+ * only a subset of liblzma's internal static variables. Using those
+ * functions have the following advantages:
+ *  - When linking statically against liblzma, less useless functions will
+ *    get linked into the binary. E.g. if you need only the decoder functions,
+ *    using lzma_init_decoder() avoids linking bunch of encoder related code.
+ *  - There is less things to initialize, making the initialization
+ *    process slightly faster.
+ */
+extern void lzma_init(void);
+
+
+/**
+ * \brief       Initialize internal static variables needed by encoders
+ *
+ * If you need only the encoder functions, you may use this function to
+ * initialize only the things required by encoders.
+ *
+ * This function also calls lzma_init_check().
+ */
+extern void lzma_init_encoder(void);
+
+
+/**
+ * \brief       Initialize internal static variables needed by decoders
+ *
+ * If you need only the decoder functions, you may use this function to
+ * initialize only the things required by decoders.
+ *
+ * This function also calls lzma_init_check().
+ */
+extern void lzma_init_decoder(void);
+
+
+/**
+ * \brief       Initialize internal static variables needed by integrity checks
+ *
+ * Currently this initializes CRC32 and CRC64 lookup tables if precalculated
+ * tables haven't been built into the library. This function can be useful
+ * if the only thing you need from liblzma is the integrity check functions.
+ */
+extern void lzma_init_check(void);