SORT_DEBUG_NO_JOIN = 2,
};
-struct sort_bucket {
- cnode n;
- struct sort_context *ctx;
- uns flags;
- struct fastbuf *fb;
- byte *filename;
- u64 size; // Size in bytes (not valid when writing)
- uns runs; // Number of runs, 0 if not sorted
- uns hash_bits; // Remaining bits of the hash function
- byte *ident; // Identifier used in debug messages
-};
-
-enum sort_bucket_flags {
- SBF_FINAL = 1, // This bucket corresponds to the final output file (always 1 run)
- SBF_SOURCE = 2, // Contains the source file (always 0 runs)
- SBF_CUSTOM_PRESORT = 4, // Contains source to read via custom presorter
- SBF_OPEN_WRITE = 256, // We are currently writing to the fastbuf
- SBF_OPEN_READ = 512, // We are reading from the fastbuf
- SBF_DESTROYED = 1024, // Already done with, no further references allowed
- SBF_SWAPPED_OUT = 2048, // Swapped out to a named file
-};
+struct sort_bucket;
struct sort_context {
struct fastbuf *in_fb;
void *big_buf, *big_buf_half;
size_t big_buf_size, big_buf_half_size;
- int (*custom_presort)(struct fastbuf *dest, byte *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);
void sorter_run(struct sort_context *ctx);
+/* Buffers */
+
void *sorter_alloc(struct sort_context *ctx, uns size);
void sorter_alloc_buf(struct sort_context *ctx);
void sorter_free_buf(struct sort_context *ctx);
-// Operations on buckets
+/* Buckets */
+
+struct sort_bucket {
+ cnode n;
+ struct sort_context *ctx;
+ uns flags;
+ struct fastbuf *fb;
+ byte *filename;
+ u64 size; // Size in bytes (not valid when writing)
+ uns runs; // Number of runs, 0 if not sorted
+ uns hash_bits; // Remaining bits of the hash function
+ byte *ident; // Identifier used in debug messages
+};
+
+enum sort_bucket_flags {
+ SBF_FINAL = 1, // This bucket corresponds to the final output file (always 1 run)
+ SBF_SOURCE = 2, // Contains the source file (always 0 runs)
+ SBF_CUSTOM_PRESORT = 4, // Contains source to read via custom presorter
+ SBF_OPEN_WRITE = 256, // We are currently writing to the fastbuf
+ SBF_OPEN_READ = 512, // We are reading from the fastbuf
+ SBF_DESTROYED = 1024, // Already done with, no further references allowed
+ SBF_SWAPPED_OUT = 2048, // Swapped out to a named file
+};
+
struct sort_bucket *sbuck_new(struct sort_context *ctx);
void sbuck_drop(struct sort_bucket *b);
int sbuck_have(struct sort_bucket *b);
+int sbuck_has_file(struct sort_bucket *b);
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);