svn_hash.h

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#ifndef SVN_HASH_H
#define SVN_HASH_H

#include <apr.h>
#include <apr_pools.h>
#include <apr_hash.h>
#include <apr_tables.h>
#include <apr_file_io.h>  /* for apr_file_t */

#include "svn_types.h"
#include "svn_io.h"       /* for svn_stream_t */


#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


#define SVN_KEYLINE_MAXLEN 100

/*----------------------------------------------------*/

#define SVN_HASH_TERMINATOR "END"

svn_error_t *
svn_hash_read2(apr_hash_t *hash,
               svn_stream_t *stream,
               const char *terminator,
               apr_pool_t *pool);

svn_error_t *
svn_hash_write2(apr_hash_t *hash,
                svn_stream_t *stream,
                const char *terminator,
                apr_pool_t *pool);

svn_error_t *
svn_hash_read_incremental(apr_hash_t *hash,
                          svn_stream_t *stream,
                          const char *terminator,
                          apr_pool_t *pool);

svn_error_t *
svn_hash_write_incremental(apr_hash_t *hash,
                           apr_hash_t *oldhash,
                           svn_stream_t *stream,
                           const char *terminator,
                           apr_pool_t *pool);

SVN_DEPRECATED
svn_error_t *
svn_hash_read(apr_hash_t *hash,
              apr_file_t *srcfile,
              apr_pool_t *pool);

SVN_DEPRECATED
svn_error_t *
svn_hash_write(apr_hash_t *hash,
               apr_file_t *destfile,
               apr_pool_t *pool);


enum svn_hash_diff_key_status
  {
    /* Key is present in both hashes. */
    svn_hash_diff_key_both,

    /* Key is present in first hash only. */
    svn_hash_diff_key_a,

    /* Key is present in second hash only. */
    svn_hash_diff_key_b
  };


typedef svn_error_t *(*svn_hash_diff_func_t)
  (const void *key, apr_ssize_t klen,
   enum svn_hash_diff_key_status status,
   void *baton);


svn_error_t *
svn_hash_diff(apr_hash_t *hash_a,
              apr_hash_t *hash_b,
              svn_hash_diff_func_t diff_func,
              void *diff_func_baton,
              apr_pool_t *pool);


svn_error_t *
svn_hash_keys(apr_array_header_t **array,
              apr_hash_t *hash,
              apr_pool_t *pool);

svn_error_t *
svn_hash_from_cstring_keys(apr_hash_t **hash,
                           const apr_array_header_t *keys,
                           apr_pool_t *pool);

#define svn_hash_gets(ht, key) \
            apr_hash_get(ht, key, APR_HASH_KEY_STRING)

#define svn_hash_sets(ht, key, val) \
            apr_hash_set(ht, key, APR_HASH_KEY_STRING, val)

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* SVN_HASH_H */