1 files changed, 0 insertions, 108 deletions
diff --git a/chromium/third_party/sqlite/sqlite-src-3240000/ext/misc/mmapwarm.c b/chromium/third_party/sqlite/sqlite-src-3240000/ext/misc/mmapwarm.c
deleted file mode 100644
index 4e23638a99c..00000000000
--- a/chromium/third_party/sqlite/sqlite-src-3240000/ext/misc/mmapwarm.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
-** 2017-09-18
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-*/
-
-#include "sqlite3.h"
-
-
-/*
-** This function is used to touch each page of a mapping of a memory
-** mapped SQLite database. Assuming that the system has sufficient free
-** memory and supports sufficiently large mappings, this causes the OS 
-** to cache the entire database in main memory, making subsequent 
-** database accesses faster.
-**
-** If the second parameter to this function is not NULL, it is the name of
-** the specific database to operate on (i.e. "main" or the name of an
-** attached database).
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-** It is not considered an error if the file is not memory-mapped, or if
-** the mapping does not span the entire file. If an error does occur, a
-** transaction may be left open on the database file.
-**
-** It is illegal to call this function when the database handle has an 
-** open transaction. SQLITE_MISUSE is returned in this case.
-*/
-int sqlite3_mmap_warm(sqlite3 *db, const char *zDb){
-  int rc = SQLITE_OK;
-  char *zSql = 0;
-  int pgsz = 0;
-  int nTotal = 0;
-
-  if( 0==sqlite3_get_autocommit(db) ) return SQLITE_MISUSE;
-
-  /* Open a read-only transaction on the file in question */
-  zSql = sqlite3_mprintf("BEGIN; SELECT * FROM %s%q%ssqlite_master", 
-      (zDb ? "'" : ""), (zDb ? zDb : ""), (zDb ? "'." : "")
-  );
-  if( zSql==0 ) return SQLITE_NOMEM;
-  rc = sqlite3_exec(db, zSql, 0, 0, 0);
-  sqlite3_free(zSql);
-
-  /* Find the SQLite page size of the file */
-  if( rc==SQLITE_OK ){
-    zSql = sqlite3_mprintf("PRAGMA %s%q%spage_size", 
-        (zDb ? "'" : ""), (zDb ? zDb : ""), (zDb ? "'." : "")
-    );
-    if( zSql==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      sqlite3_stmt *pPgsz = 0;
-      rc = sqlite3_prepare_v2(db, zSql, -1, &pPgsz, 0);
-      sqlite3_free(zSql);
-      if( rc==SQLITE_OK ){
-        if( sqlite3_step(pPgsz)==SQLITE_ROW ){
-          pgsz = sqlite3_column_int(pPgsz, 0);
-        }
-        rc = sqlite3_finalize(pPgsz);
-      }
-      if( rc==SQLITE_OK && pgsz==0 ){
-        rc = SQLITE_ERROR;
-      }
-    }
-  }
-
-  /* Touch each mmap'd page of the file */
-  if( rc==SQLITE_OK ){
-    int rc2;
-    sqlite3_file *pFd = 0;
-    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_FILE_POINTER, &pFd);
-    if( rc==SQLITE_OK && pFd->pMethods->iVersion>=3 ){
-      sqlite3_int64 iPg = 1;
-      sqlite3_io_methods const *p = pFd->pMethods;
-      while( 1 ){
-        unsigned char *pMap;
-        rc = p->xFetch(pFd, pgsz*iPg, pgsz, (void**)&pMap);
-        if( rc!=SQLITE_OK || pMap==0 ) break;
-
-        nTotal += pMap[0];
-        nTotal += pMap[pgsz-1];
-
-        rc = p->xUnfetch(pFd, pgsz*iPg, (void*)pMap);
-        if( rc!=SQLITE_OK ) break;
-        iPg++;
-      }
-      sqlite3_log(SQLITE_OK, 
-          "sqlite3_mmap_warm_cache: Warmed up %d pages of %s", iPg==1?0:iPg,
-          sqlite3_db_filename(db, zDb)
-      );
-    }
-
-    rc2 = sqlite3_exec(db, "END", 0, 0, 0);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  return rc;
-}
-