thodg/libgit2/src/util/rand.h

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• Hash : c3b7ace9
  Author :
  Date : 2021-11-14T16:43:53
  

  refactor: make util an object library Instead of simply including the utility files directly, make them a cmake object library for easy reusability between other projects within libgit2. Now the top-level `src` is responsible for platform selection, while the next-level `libgit2` and `util` configurations are responsible for identifying what objects they include.

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• src/util/rand.h

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_rand_h__
  #define INCLUDE_rand_h__
  
  #include "git2_util.h"
  
  /**
   * Initialize the random number generation subsystem.  This will
   * seed the random number generator with the system's entropy pool,
   * if available, and will fall back to the current time and
   * system information if not.
   */
  int git_rand_global_init(void);
  
  /**
   * Seed the pseudo-random number generator.  This is not needed to be
   * called; the PRNG is seeded by `git_rand_global_init`, but it may
   * be useful for testing.  When the same seed is specified, the same
   * sequence of random numbers from `git_rand_next` is emitted.
   *
   * @param seed the seed to use
   */
  void git_rand_seed(uint64_t seed);
  
  /**
   * Get the next pseudo-random number in the sequence.
   *
   * @return a 64-bit pseudo-random number
   */
  uint64_t git_rand_next(void);
  
  #endif
  

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