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#ifndef INCLUDE_git_revwalk_h__
#define INCLUDE_git_revwalk_h__
#include "common.h"
#include "odb.h"
#include "commit.h"
/**
* @file git/revwalk.h
* @brief Git revision traversal routines
* @defgroup git_revwalk Git revision traversal routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Allocate a new revision traversal pool.
*
* The configuration is copied during allocation. Changes
* to the configuration after allocation do not affect the pool
* returned by this function. Callers may safely free the
* passed configuration after the function completes.
*
* @param db the database objects are read from.
* @return the new traversal handle; NULL if memory is exhausted.
*/
GIT_EXTERN(git_revpool *) gitrp_alloc(git_odb *db);
/**
* Reset the traversal machinary for reuse.
* @param pool traversal handle to reset.
*/
GIT_EXTERN(void) gitrp_reset(git_revpool *pool);
/**
* Mark an object to start traversal from.
* @param pool the pool being used for the traversal.
* @param commit the commit to start from.
*/
GIT_EXTERN(void) gitrp_push(git_revpool *pool, git_commit *commit);
/**
* Mark a commit (and its ancestors) uninteresting for the output.
* @param pool the pool being used for the traversal.
* @param commit the commit that will be ignored during the traversal
*/
GIT_EXTERN(void) gitrp_hide(git_revpool *pool, git_commit *commit);
/**
* Get the next commit from the revision traversal.
* @param pool the pool to pop the commit from.
* @return next commit; NULL if there is no more output.
*/
GIT_EXTERN(git_commit *) gitrp_next(git_revpool *pool);
/**
* Free a revwalk previously allocated.
* @param pool traversal handle to close. If NULL nothing occurs.
*/
GIT_EXTERN(void) gitrp_free(git_revpool *pool);
/** @} */
GIT_END_DECL
#endif
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