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Implementato unlock sulla DB_rewrite, e controllo chiave sulla DB_seek.

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git-svn-id: svn://10.65.10.50/trunk@1553 c028cbd2-c16b-5b4b-a496-9718f37d4682
This commit is contained in:
angelo 1995-07-04 17:47:13 +00:00
parent 4e71de7064
commit 6feacefc3e
1 changed files with 21 additions and 3 deletions
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24
include/codeb.c
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@ -314,9 +314,23 @@ int DB_unlock(int handle)
successivo, se torna r4eof e' su eof
--------------------------------------------------------------------------*/
int DB_seek(int handle,char *key)
{
{
int rc;
TAG4 * tt;
if(dbdata[handle]==0) return(-1);
return(x4seek(&xdb[handle],key));
rc = x4seek(&xdb[handle],key);
if (rc)
return rc;
tt = d4tag_selected(dbdata[handle]);
rc = strncmp(key, t4key(tt), expr4key_len(tt->expr));
if (rc == 0)
return 0;
else
if (rc < 0)
return r4after;
else
return r4eof;
}
/*-------------------------------------------------------------------------
@ -400,8 +414,12 @@ int DB_delkey(int handle, char* key, long recno)
--------------------------------------------------------------------------*/
int DB_rewrite(int handle)
{
int rt;
if(dbdata[handle]==0) return(-1);
return(d4write(dbdata[handle],d4recno(dbdata[handle])));
rt=d4write(dbdata[handle],d4recno(dbdata[handle]));
if (rt!=r4success)
rt=DB_unlock(handle);
return (rt);
}