> On 04 Oct 2016, at 21:53, Junio C Hamano <gitster@xxxxxxxxx> wrote:
>
> larsxschneider@xxxxxxxxx writes:
>
>> From: Lars Schneider <larsxschneider@xxxxxxxxx>
>>
>
>> +int write_packetized_from_buf(const char *src_in, size_t len, int fd_out)
>> +{
>> + static char buf[LARGE_PACKET_DATA_MAX];
>> + int err = 0;
>> + size_t bytes_written = 0;
>> + size_t bytes_to_write;
>> +
>> + while (!err) {
>> + if ((len - bytes_written) > sizeof(buf))
>> + bytes_to_write = sizeof(buf);
>> + else
>> + bytes_to_write = len - bytes_written;
>> + if (bytes_to_write == 0)
>> + break;
>> + err = packet_write_gently(fd_out, src_in + bytes_written, bytes_to_write);
>> + bytes_written += bytes_to_write;
>> + }
>> + if (!err)
>> + err = packet_flush_gently(fd_out);
>> + return err;
>> +}
>
> Hmph, what is buf[] used for, other than its sizeof() taken to yield
> a constant LARGE_PACKET_DATA_MAX?
Agreed. This is stupid. I will fix it.
>>
>> + for (;;) {
>> + strbuf_grow(sb_out, LARGE_PACKET_DATA_MAX);
>> + packet_len = packet_read(fd_in, NULL, NULL,
>> + // TODO: explain + 1
>
> No // C99 comment please.
>
> And I agree that the +1 needs to be explained.
Oh. I did not send the very latest version :-(
Is this explanation OK?
+ strbuf_grow(sb_out, LARGE_PACKET_DATA_MAX);
+ packet_len = packet_read(fd_in, NULL, NULL,
+ /* strbuf_grow() above always allocates one extra byte to
+ * store a '\0' at the end of the string. packet_read()
+ * writes a '\0' extra byte at the end, too. Let it know
+ * that there is already room for the extra byte.
+ */
+ sb_out->buf + sb_out->len, LARGE_PACKET_DATA_MAX+1,
+ PACKET_READ_GENTLE_ON_EOF);
Thanks,
Lars