SQLite

Check-in [1d267757a8]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:In the blob test code, avoid crashing on low-memory systems by using Tcl_AttemptAlloc().
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 1d267757a89d9267ee9c201373f801eb9772ab04
User & Date: mistachkin 2017-02-15 01:39:28.000
Context
2017-02-15
04:16
Further reforms to Tcl_*Alloc() usage. (check-in: ee1e689633 user: mistachkin tags: trunk)
01:39
In the blob test code, avoid crashing on low-memory systems by using Tcl_AttemptAlloc(). (check-in: 1d267757a8 user: mistachkin tags: trunk)
2017-02-14
21:47
Clarification of the help text for the command-line shell. (check-in: ca4f1e4962 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/test_blob.c.
235
236
237
238
239
240
241
242




243
244
245
246
247
248
249
  if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &iOffset)
   || TCL_OK!=Tcl_GetIntFromObj(interp, objv[3], &nByte)
  ){ 
    return TCL_ERROR;
  }

  if( nByte>0 ){
    zBuf = (unsigned char *)Tcl_Alloc(nByte);




  }
  rc = sqlite3_blob_read(pBlob, zBuf, nByte, iOffset);
  if( rc==SQLITE_OK ){
    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zBuf, nByte));
  }else{
    Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_VOLATILE);
  }







|
>
>
>
>







235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
  if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &iOffset)
   || TCL_OK!=Tcl_GetIntFromObj(interp, objv[3], &nByte)
  ){ 
    return TCL_ERROR;
  }

  if( nByte>0 ){
    zBuf = (unsigned char *)Tcl_AttemptAlloc(nByte);
    if( zBuf==0 ){
      Tcl_AppendResult(interp, "out of memory", 0);
      return TCL_ERROR;
    }
  }
  rc = sqlite3_blob_read(pBlob, zBuf, nByte, iOffset);
  if( rc==SQLITE_OK ){
    Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zBuf, nByte));
  }else{
    Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_VOLATILE);
  }