lib: added {big,page}_alloc_zero routines

[libucw.git] / lib / sorter / common.h

diff --git a/lib/sorter/common.h b/lib/sorter/common.h
index 74e648d62c0b4e40923a5e162a3a77bca9b9c22a..60c6db98ceb8c63185df0922b25faacbedede4fd 100644 (file)
--- a/lib/sorter/common.h
+++ b/lib/sorter/common.h
@@ -14,8 +14,9 @@
 
 /* Configuration, some of the variables are used by the old sorter, too. */
 extern uns sorter_trace, sorter_presort_bufsize, sorter_stream_bufsize;
 
 /* Configuration, some of the variables are used by the old sorter, too. */
 extern uns sorter_trace, sorter_presort_bufsize, sorter_stream_bufsize;

-extern uns sorter_debug;
+extern uns sorter_debug, sorter_min_radix_bits, sorter_max_radix_bits;

 extern u64 sorter_bufsize;
 extern u64 sorter_bufsize;

+extern struct fb_params sorter_fb_params;

 
 #define SORT_TRACE(x...) do { if (sorter_trace) log(L_DEBUG, x); } while(0)
 #define SORT_XTRACE(level, x...) do { if (sorter_trace >= level) log(L_DEBUG, x); } while(0)
 
 #define SORT_TRACE(x...) do { if (sorter_trace) log(L_DEBUG, x); } while(0)
 #define SORT_XTRACE(level, x...) do { if (sorter_trace >= level) log(L_DEBUG, x); } while(0)


@@ -24,6 +25,7 @@ enum sort_debug {
   SORT_DEBUG_NO_PRESORT = 1,
   SORT_DEBUG_NO_JOIN = 2,
   SORT_DEBUG_KEEP_BUCKETS = 4,
   SORT_DEBUG_NO_PRESORT = 1,
   SORT_DEBUG_NO_JOIN = 2,
   SORT_DEBUG_KEEP_BUCKETS = 4,

+  SORT_DEBUG_NO_RADIX = 8,

 };
 
 struct sort_bucket;
 };
 
 struct sort_bucket;


@@ -32,23 +34,37 @@ struct sort_context {
   struct fastbuf *in_fb;
   struct fastbuf *out_fb;
   uns hash_bits;
   struct fastbuf *in_fb;
   struct fastbuf *out_fb;
   uns hash_bits;

+  u64 in_size;

 
   struct mempool *pool;
   clist bucket_list;
 
   struct mempool *pool;
   clist bucket_list;

-  void *big_buf, *big_buf_half;
-  size_t big_buf_size, big_buf_half_size;
+  void *big_buf;
+  size_t big_buf_size;

 
   int (*custom_presort)(struct fastbuf *dest, void *buf, size_t bufsize);
 
   int (*custom_presort)(struct fastbuf *dest, void *buf, size_t bufsize);

+

   // Take as much as possible from the source bucket, sort it in memory and dump to destination bucket.
   // Return 1 if there is more data available in the source bucket.
   int (*internal_sort)(struct sort_context *ctx, struct sort_bucket *in, struct sort_bucket *out, struct sort_bucket *out_only);
   // Take as much as possible from the source bucket, sort it in memory and dump to destination bucket.
   // Return 1 if there is more data available in the source bucket.
   int (*internal_sort)(struct sort_context *ctx, struct sort_bucket *in, struct sort_bucket *out, struct sort_bucket *out_only);

+
+  // Estimate how much input data from `b' will fit in the internal sorting buffer.
+  u64 (*internal_estimate)(struct sort_context *ctx, struct sort_bucket *b);
+

   // Two-way split/merge: merge up to 2 source buckets to up to 2 destination buckets.
   // Bucket arrays are NULL-terminated.
   void (*twoway_merge)(struct sort_context *ctx, struct sort_bucket **ins, struct sort_bucket **outs);
 
   // Two-way split/merge: merge up to 2 source buckets to up to 2 destination buckets.
   // Bucket arrays are NULL-terminated.
   void (*twoway_merge)(struct sort_context *ctx, struct sort_bucket **ins, struct sort_bucket **outs);
 

+  // Radix split according to hash function
+  void (*radix_split)(struct sort_context *ctx, struct sort_bucket *in, struct sort_bucket **outs, uns bitpos, uns numbits);
+

   // State variables of internal_sort
   void *key_buf;
   int more_keys;
   // State variables of internal_sort
   void *key_buf;
   int more_keys;

+
+  // Timing
+  timestamp_t start_time;
+  uns last_pass_time;
+  uns total_int_time, total_pre_time, total_ext_time;

 };
 
 void sorter_run(struct sort_context *ctx);
 };
 
 void sorter_run(struct sort_context *ctx);


@@ -56,6 +72,7 @@ void sorter_run(struct sort_context *ctx);
 /* Buffers */
 
 void *sorter_alloc(struct sort_context *ctx, uns size);
 /* Buffers */
 
 void *sorter_alloc(struct sort_context *ctx, uns size);

+void sorter_prepare_buf(struct sort_context *ctx);

 void sorter_alloc_buf(struct sort_context *ctx);
 void sorter_free_buf(struct sort_context *ctx);
 
 void sorter_alloc_buf(struct sort_context *ctx);
 void sorter_free_buf(struct sort_context *ctx);
 


@@ -91,9 +108,6 @@ sh_off_t sbuck_size(struct sort_bucket *b);
 struct fastbuf *sbuck_read(struct sort_bucket *b);
 struct fastbuf *sbuck_write(struct sort_bucket *b);
 void sbuck_swap_out(struct sort_bucket *b);
 struct fastbuf *sbuck_read(struct sort_bucket *b);
 struct fastbuf *sbuck_write(struct sort_bucket *b);
 void sbuck_swap_out(struct sort_bucket *b);

-
-#define F_SIZE(x) ({ byte buf[16]; format_size(buf, x); buf; })
-#define F_BSIZE(b) F_SIZE(sbuck_size(b))

 void format_size(byte *buf, u64 x);
 
 #endif
 void format_size(byte *buf, u64 x);
 
 #endif