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authorunknown <brian@zim.(none)>2005-06-01 18:48:29 -0700
committerunknown <brian@zim.(none)>2005-06-01 18:48:29 -0700
commite2bf6b04a6d97a6680cd4deb653fc92e6604bfea (patch)
tree6a69ff42d381e6dc38ff3518c762a6fdb7a8bb0c /sql/examples/ha_tina.cc
parente71ef9416f84922310f88c1cd7295334dadfeb68 (diff)
parent0218ecf7af9bb7dee577ec01f42f602205ec3483 (diff)
downloadmariadb-git-e2bf6b04a6d97a6680cd4deb653fc92e6604bfea.tar.gz
Merge
sql/ha_heap.cc: Auto merged sql/item_subselect.cc: Auto merged sql/sql_acl.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_parse.cc: Auto merged sql/examples/ha_archive.cc: Auto merged sql/examples/ha_example.cc: Auto merged sql/examples/ha_tina.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_repl.cc: SCCS merged
Diffstat (limited to 'sql/examples/ha_tina.cc')
-rw-r--r--sql/examples/ha_tina.cc37
1 files changed, 12 insertions, 25 deletions
diff --git a/sql/examples/ha_tina.cc b/sql/examples/ha_tina.cc
index 44040ad3b61..16e28e5ae85 100644
--- a/sql/examples/ha_tina.cc
+++ b/sql/examples/ha_tina.cc
@@ -20,10 +20,10 @@
First off, this is a play thing for me, there are a number of things wrong with it:
*) It was designed for csv and therefor its performance is highly questionable.
*) Indexes have not been implemented. This is because the files can be traded in
- and out of the table directory without having to worry about rebuilding anything.
+ and out of the table directory without having to worry about rebuilding anything.
*) NULLs and "" are treated equally (like a spreadsheet).
*) There was in the beginning no point to anyone seeing this other then me, so there
- is a good chance that I haven't quite documented it well.
+ is a good chance that I haven't quite documented it well.
*) Less design, more "make it work"
Now there are a few cool things with it:
@@ -91,12 +91,12 @@ int get_mmap(TINA_SHARE *share, int write)
{
if (write)
share->mapped_file= (byte *)mmap(NULL, share->file_stat.st_size,
- PROT_READ|PROT_WRITE, MAP_SHARED,
- share->data_file, 0);
+ PROT_READ|PROT_WRITE, MAP_SHARED,
+ share->data_file, 0);
else
share->mapped_file= (byte *)mmap(NULL, share->file_stat.st_size,
- PROT_READ, MAP_PRIVATE,
- share->data_file, 0);
+ PROT_READ, MAP_PRIVATE,
+ share->data_file, 0);
if ((share->mapped_file ==(caddr_t)-1))
{
/*
@@ -146,9 +146,9 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table)
{
char data_file_name[FN_REFLEN];
if (!my_multi_malloc(MYF(MY_WME | MY_ZEROFILL),
- &share, sizeof(*share),
- &tmp_name, length+1,
- NullS))
+ &share, sizeof(*share),
+ &tmp_name, length+1,
+ NullS))
{
pthread_mutex_unlock(&tina_mutex);
return NULL;
@@ -343,7 +343,6 @@ int ha_tina::find_current_row(byte *buf)
for (Field **field=table->field ; *field ; field++)
{
- int x;
buffer.length(0);
mapped_ptr++; // Increment past the first quote
for(;mapped_ptr != end_ptr; mapped_ptr++)
@@ -738,28 +737,16 @@ int ha_tina::rnd_end()
*/
qsort(chain, (size_t)(chain_ptr - chain), sizeof(tina_set), (qsort_cmp)sort_set);
for (ptr= chain; ptr < chain_ptr; ptr++)
- printf("Chain %d, %d\n", (int)ptr->begin, (int)ptr->end);
- for (ptr= chain; ptr < chain_ptr; ptr++)
{
- //memmove(share->mapped_file + ptr->begin, share->mapped_file
- //+ ptr->end, length - (size_t)ptr->end);
/* We peek a head to see if this is the last chain */
- printf("Delete %d, %d, %d\n", (int)ptr->begin, (int)ptr->end, (int)length);
if (ptr+1 == chain_ptr)
- {
- printf("Shiftina(end) %d(%d) to %d\n", (int)ptr->end, (int)(length - (size_t)ptr->end), (int)ptr->begin);
memmove(share->mapped_file + ptr->begin, share->mapped_file + ptr->end,
length - (size_t)ptr->end);
- }
else
- {
- printf("Shifting %d(%d) to %d\n", (int)ptr->end, (int)((ptr++)->begin - (size_t)ptr->end), (int)ptr->begin);
- memmove(share->mapped_file + ptr->begin, share->mapped_file + ptr->end,
- (size_t)(ptr++)->begin - (size_t)ptr->end);
- }
+ memmove((caddr_t)share->mapped_file + ptr->begin, (caddr_t)share->mapped_file + ptr->end,
+ (size_t)((ptr++)->begin - ptr->end));
length= length - (size_t)(ptr->end - ptr->begin);
}
- printf("Buffer %s\n",share->mapped_file);
/* Truncate the file to the new size */
if (my_chsize(share->data_file, length, 0, MYF(MY_WME)))
@@ -842,7 +829,7 @@ int ha_tina::create(const char *name, TABLE *table_arg, HA_CREATE_INFO *create_i
DBUG_ENTER("ha_tina::create");
if ((create_file= my_create(fn_format(name_buff,name,"",".CSV",MY_REPLACE_EXT|MY_UNPACK_FILENAME),0,
- O_RDWR | O_TRUNC,MYF(MY_WME))) < 0)
+ O_RDWR | O_TRUNC,MYF(MY_WME))) < 0)
DBUG_RETURN(-1);
my_close(create_file,MYF(0));