[compiler-rt] r181924 - Try to improve performance by using a read/write buffer instead of I/O.

[Bill Wendling]

On May 16, 2013, at 11:01 AM, Bill Wendling <isanbard at gmail.com> wrote:

> On May 16, 2013, at 9:22 AM, Reid Kleckner <rnk at google.com> wrote:
> 
>> -static uint64_t write_from_buffer(uint64_t *buffer, size_t size) {
>> -  if (fwrite(buffer, 8, size, output_file) != size)
>> -    return (uint64_t)-1;
>> +static void write_bytes(const char *s, size_t len) {
>> +  if (cur_offset + len > WRITE_BUFFER_SIZE)
>> +    flush_buffer();
>> 
>> Can len be > WRITE_BUFFER_SIZE? 
>> 
> In theory, yes. But that would involve a filename that is > 1^12 characters long. That's such an edge case that I don't think we really need to worry about it...
> 
Ahem...that’s > 2^12 characters long. :-)

-bw