From 9f16de03664224cc286851ca03369cf699dd7c3c Mon Sep 17 00:00:00 2001 From: "maruel@google.com" Date: Thu, 7 Aug 2008 17:04:23 +0000 Subject: Reapply 508 to determine if it was indeed the cause of the webkit-release-playback failure. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@518 0039d316-1c4b-4281-b951-d872f2087c98 --- base/pickle.cc | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) (limited to 'base/pickle.cc') diff --git a/base/pickle.cc b/base/pickle.cc index 0fb1d9c..356d5df 100644 --- a/base/pickle.cc +++ b/base/pickle.cc @@ -309,20 +309,21 @@ char* Pickle::BeginWriteData(int length) { return data_ptr; } -void Pickle::TrimWriteData(int length) { +void Pickle::TrimWriteData(int new_length) { DCHECK(variable_buffer_offset_ != 0); - VariableLengthBuffer *buffer = reinterpret_cast( + // Fetch the the variable buffer size + int* cur_length = reinterpret_cast( reinterpret_cast(header_) + variable_buffer_offset_); - DCHECK_GE(buffer->length, length); - - int old_length = buffer->length; - int trimmed_bytes = old_length - length; - if (trimmed_bytes > 0) { - header_->payload_size -= trimmed_bytes; - buffer->length = length; + if (new_length < 0 || new_length > *cur_length) { + NOTREACHED() << "Invalid length in TrimWriteData."; + return; } + + // Update the payload size and variable buffer size + header_->payload_size -= (*cur_length - new_length); + *cur_length = new_length; } bool Pickle::Resize(size_t new_capacity) { -- cgit v1.1