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authordrh <drh@noemail.net>2010-05-19 19:26:05 +0000
committerdrh <drh@noemail.net>2010-05-19 19:26:05 +0000
commit9ff27ecdb2de9f010c4ba4bce262a0ea1c96ecdb (patch)
tree74ecb7012a13b09c887830b0cbb95fd1db5b0257 /src/os_unix.c
parent4c1cb6ab052377aed62d04eba6da4ac7ee2d3468 (diff)
downloadsqlite-9ff27ecdb2de9f010c4ba4bce262a0ea1c96ecdb.tar.gz
sqlite-9ff27ecdb2de9f010c4ba4bce262a0ea1c96ecdb.zip
Add the SQLITE_FCNTL_SIZE_HINT operator to sqlite3_file_control() and use it
to give the VFS hints about the ultimate size of a database file when the file is growing. FossilOrigin-Name: 2b7e3b4a30d6a7c4a8a4b8e7dd2ed728b565c96d
Diffstat (limited to 'src/os_unix.c')
-rw-r--r--src/os_unix.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/os_unix.c b/src/os_unix.c
index 928ee6355..ecdd261d2 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3045,6 +3045,12 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
*(int*)pArg = ((unixFile*)id)->lastErrno;
return SQLITE_OK;
}
+ case SQLITE_FCNTL_SIZE_HINT: {
+ sqlite3_int64 szFile = *(sqlite3_int64*)pArg;
+ unixFile *pFile = (unixFile*)id;
+ ftruncate(pFile->h, szFile);
+ return SQLITE_OK;
+ }
#ifndef NDEBUG
/* The pager calls this method to signal that it has done
** a rollback and that the database is therefore unchanged and