static_init.h - mozsearch

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/* Copyright 2025 Google Inc. All Rights Reserved.

   Distributed under MIT license.

   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT

*/

/*

   Central point for static initialization.

   In case of "lazy" mode `BrotliXxxLazyStaticInit` is not provided by the

   library. Embedder is responsible for providing it. This function should call

   `BrotliXxxLazyStaticInitInner` on the first invocation. This function should

   not return until execution of `BrotliXxxLazyStaticInitInner` is finished.

   In C or before C++11 it is possible to call `BrotliXxxLazyStaticInitInner`

   on start-up path and then `BrotliEncoderLazyStaticInit` is could be no-op;

   another option is to use available thread execution controls to meet the

   requirements. For possible C++11 implementation see static_init_lazy.cc.

*/

#ifndef THIRD_PARTY_BROTLI_COMMON_STATIC_INIT_H_

#define THIRD_PARTY_BROTLI_COMMON_STATIC_INIT_H_

#if defined(__cplusplus) || defined(c_plusplus)

extern "C" {

#endif

/* Static data is "initialized" in compile time. */

#define BROTLI_STATIC_INIT_NONE 0

/* Static data is initialized before "main". */

#define BROTLI_STATIC_INIT_EARLY 1

/* Static data is initialized when first encoder is created. */

#define BROTLI_STATIC_INIT_LAZY 2

#define BROTLI_STATIC_INIT_DEFAULT BROTLI_STATIC_INIT_NONE

#if !defined(BROTLI_STATIC_INIT)

#define BROTLI_STATIC_INIT BROTLI_STATIC_INIT_DEFAULT

#endif

#if (BROTLI_STATIC_INIT != BROTLI_STATIC_INIT_NONE) && \

    (BROTLI_STATIC_INIT != BROTLI_STATIC_INIT_EARLY) && \

    (BROTLI_STATIC_INIT != BROTLI_STATIC_INIT_LAZY)

#error Invalid value for BROTLI_STATIC_INIT

#endif

#if (BROTLI_STATIC_INIT == BROTLI_STATIC_INIT_EARLY)

#if defined(BROTLI_EXTERNAL_DICTIONARY_DATA)

#error BROTLI_STATIC_INIT_EARLY will fail with BROTLI_EXTERNAL_DICTIONARY_DATA

#endif

#endif  /* BROTLI_STATIC_INIT */

#if defined(__cplusplus) || defined(c_plusplus)

}  /* extern "C" */

#endif

#endif  // THIRD_PARTY_BROTLI_COMMON_STATIC_INIT_H_