[Spice-devel] [PATCH 10/22] Remove client_codecs global variable, moved inside the 'Stream' class

[Christophe de Dinechin]

> On 1 Mar 2018, at 11:56, Frediano Ziglio <fziglio at redhat.com> wrote:
> 
>> 
>> From: Christophe de Dinechin <dinechin at redhat.com>
>> 
>> It makes sense to place the codecs inside the Stream which is charged
>> with setting it up, until we create a proper abstraction for input
>> messages similar to what Message does for output messages in follow-up
>> patches.
>> 
>> Signed-off-by: Christophe de Dinechin <dinechin at redhat.com>
>> ---
>> src/spice-streaming-agent.cpp | 13 +++++++++----
>> 1 file changed, 9 insertions(+), 4 deletions(-)
>> 
>> diff --git a/src/spice-streaming-agent.cpp b/src/spice-streaming-agent.cpp
>> index 4d24234..403e65c 100644
>> --- a/src/spice-streaming-agent.cpp
>> +++ b/src/spice-streaming-agent.cpp
>> @@ -67,8 +67,11 @@ struct CursorMessage
>> 
>> class Stream
>> {
>> +    typedef std::set<SpiceVideoCodecType> codecs_t;
>> +
>> public:
>>     Stream(const char *name)
>> +        : codecs()
> 
> this is not necessary

also harmless. But OK.

> 
>>     {
>>         streamfd = open(name, O_RDWR);
>>         if (streamfd < 0) {
>> @@ -80,6 +83,8 @@ public:
>>         close(streamfd);
>>     }
>> 
>> +    const codecs_t &client_codecs() { return codecs; }
>> +
> 
> I would add const here:
> 
>   const codecs_t &client_codecs() const { return codecs; }

OK.

> 
>>     int read_command(bool blocking);
>>     size_t write_all(const void *buf, const size_t len);
>>     int send_format(unsigned w, unsigned h, uint8_t c);
>> @@ -98,6 +103,7 @@ private:
>> private:
>>     int streamfd = -1;
>>     std::mutex mutex;
>> +    codecs_t codecs;
> 
> why not client_codecs?

that’s the name of the method.

> 
>> };
>> 
>> }} // namespace spice::streaming_agent
>> @@ -105,7 +111,6 @@ private:
>> static bool streaming_requested = false;
>> static bool quit_requested = false;
>> static bool log_binary = false;
>> -static std::set<SpiceVideoCodecType> client_codecs;
>> 
>> int Stream::have_something_to_read(int timeout)
>> {
>> @@ -139,9 +144,9 @@ void Stream::handle_stream_start_stop(uint32_t len)
>>     streaming_requested = (msg[0] != 0); /* num_codecs */
>>     syslog(LOG_INFO, "GOT START_STOP message -- request to %s streaming\n",
>>            streaming_requested ? "START" : "STOP");
>> -    client_codecs.clear();
>> +    codecs.clear();
>>     for (int i = 1; i <= msg[0]; ++i) {
>> -        client_codecs.insert((SpiceVideoCodecType) msg[i]);
>> +        codecs.insert((SpiceVideoCodecType) msg[i]);
>>     }
>> }
>> 
>> @@ -432,7 +437,7 @@ do_capture(Stream &stream, const char *streamport, FILE
>> *f_log)
>>         syslog(LOG_INFO, "streaming starts now\n");
>>         uint64_t time_last = 0;
>> 
>> -        std::unique_ptr<FrameCapture>
>> capture(agent.GetBestFrameCapture(client_codecs));
>> +        std::unique_ptr<FrameCapture>
>> capture(agent.GetBestFrameCapture(stream.client_codecs()));
>>         if (!capture) {
>>             throw std::runtime_error("cannot find a suitable capture
>>             system");
>>         }
> 
> Frediano
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