[Spice-devel] [spice 1/3] server: Add time constants to go with spice_get_monotonic_time_ns()
Christophe Fergeau
cfergeau at redhat.com
Mon Dec 14 03:12:50 PST 2015
Acked-by: Christophe Fergeau <cfergeau at redhat.com>
For what it's worth, I find "3 * NSEC_PER_SEC" to be more readable than
"NSEC_PER_SEC * 3" (ie the unit comes last, not first) (but no need to
change that now imo).
Christophe
On Fri, Dec 11, 2015 at 07:07:22PM +0100, Francois Gouget wrote:
> They clarify the time unit being used, reduce the need for casts and
> simplify calculations.
>
> Signed-off-by: Francois Gouget <fgouget at codeweavers.com>
> ---
> server/dcc.h | 4 ++--
> server/mjpeg-encoder.c | 10 +++++-----
> server/red-channel.c | 8 +++-----
> server/red-worker.c | 2 +-
> server/red-worker.h | 2 +-
> server/stream.c | 4 ++--
> server/stream.h | 8 ++++----
> server/utils.h | 5 ++++-
> 8 files changed, 22 insertions(+), 21 deletions(-)
>
> diff --git a/server/dcc.h b/server/dcc.h
> index f9703be..4401384 100644
> --- a/server/dcc.h
> +++ b/server/dcc.h
> @@ -31,8 +31,8 @@
> #define PALETTE_CACHE_HASH_KEY(id) ((id) & PALETTE_CACHE_HASH_MASK)
> #define CLIENT_PALETTE_CACHE_SIZE 128
>
> -#define DISPLAY_CLIENT_TIMEOUT 30000000000ULL //nano
> -#define DISPLAY_CLIENT_MIGRATE_DATA_TIMEOUT 10000000000ULL //nano, 10 sec
> +#define DISPLAY_CLIENT_TIMEOUT (NSEC_PER_SEC * 30)
> +#define DISPLAY_CLIENT_MIGRATE_DATA_TIMEOUT (NSEC_PER_SEC * 10)
> #define DISPLAY_CLIENT_RETRY_INTERVAL 10000 //micro
>
> /* Each drawable can refer to at most 3 images: src, brush and mask */
> diff --git a/server/mjpeg-encoder.c b/server/mjpeg-encoder.c
> index 9c51f7b..2a040f5 100644
> --- a/server/mjpeg-encoder.c
> +++ b/server/mjpeg-encoder.c
> @@ -68,7 +68,7 @@ static const int mjpeg_quality_samples[MJPEG_QUALITY_SAMPLE_NUM] = {20, 30, 40,
> * are not necessarily related to mis-estimation of the bit rate, and we would
> * like to wait till the stream stabilizes.
> */
> -#define MJPEG_WARMUP_TIME 3000000000LL // 3 sec
> +#define MJPEG_WARMUP_TIME (NSEC_PER_SEC * 3)
>
> enum {
> MJPEG_QUALITY_EVAL_TYPE_SET,
> @@ -659,7 +659,7 @@ static void mjpeg_encoder_adjust_fps(MJpegEncoder *encoder, uint64_t now)
>
> spice_assert(rate_control_is_active(encoder));
>
> - adjusted_fps_time_passed = (now - rate_control->adjusted_fps_start_time) / 1000 / 1000;
> + adjusted_fps_time_passed = (now - rate_control->adjusted_fps_start_time) / NSEC_PER_MILLISEC;
>
> if (!rate_control->during_quality_eval &&
> adjusted_fps_time_passed > MJPEG_ADJUST_FPS_TIMEOUT &&
> @@ -724,7 +724,7 @@ static int mjpeg_encoder_start_frame(MJpegEncoder *encoder,
> mjpeg_encoder_adjust_fps(encoder, now);
> interval = (now - rate_control->bit_rate_info.last_frame_time);
>
> - if (interval < (1000*1000*1000) / rate_control->adjusted_fps) {
> + if (interval < NSEC_PER_SEC / rate_control->adjusted_fps) {
> return MJPEG_ENCODER_FRAME_DROP;
> }
>
> @@ -1009,7 +1009,7 @@ static void mjpeg_encoder_decrease_bit_rate(MJpegEncoder *encoder)
> double duration_sec;
>
> duration_sec = (bit_rate_info->last_frame_time - bit_rate_info->change_start_time);
> - duration_sec /= (1000.0 * 1000.0 * 1000.0);
> + duration_sec /= NSEC_PER_SEC;
> measured_byte_rate = bit_rate_info->sum_enc_size / duration_sec;
> measured_fps = bit_rate_info->num_enc_frames / duration_sec;
> decrease_size = bit_rate_info->sum_enc_size / bit_rate_info->num_enc_frames;
> @@ -1078,7 +1078,7 @@ static void mjpeg_encoder_increase_bit_rate(MJpegEncoder *encoder)
> double duration_sec;
>
> duration_sec = (bit_rate_info->last_frame_time - bit_rate_info->change_start_time);
> - duration_sec /= (1000.0 * 1000.0 * 1000.0);
> + duration_sec /= NSEC_PER_SEC;
> measured_byte_rate = bit_rate_info->sum_enc_size / duration_sec;
> measured_fps = bit_rate_info->num_enc_frames / duration_sec;
> avg_frame_size = bit_rate_info->sum_enc_size / bit_rate_info->num_enc_frames;
> diff --git a/server/red-channel.c b/server/red-channel.c
> index 361f1a5..f10810e 100644
> --- a/server/red-channel.c
> +++ b/server/red-channel.c
> @@ -1370,7 +1370,7 @@ int red_channel_client_get_roundtrip_ms(RedChannelClient *rcc)
> if (rcc->latency_monitor.roundtrip < 0) {
> return rcc->latency_monitor.roundtrip;
> }
> - return rcc->latency_monitor.roundtrip / 1000 / 1000;
> + return rcc->latency_monitor.roundtrip / NSEC_PER_MILLISEC;
> }
>
> static void red_channel_client_init_outgoing_messages_window(RedChannelClient *rcc)
> @@ -1432,9 +1432,7 @@ static void red_channel_client_restart_ping_timer(RedChannelClient *rcc)
> {
> uint64_t passed, timeout;
>
> - passed = spice_get_monotonic_time_ns();
> - passed = passed - rcc->latency_monitor.last_pong_time;
> - passed /= 1000*1000;
> + passed = (spice_get_monotonic_time_ns() - rcc->latency_monitor.last_pong_time) / NSEC_PER_MILLISEC;
> timeout = PING_TEST_IDLE_NET_TIMEOUT_MS;
> if (passed < PING_TEST_TIMEOUT_MS) {
> timeout += PING_TEST_TIMEOUT_MS - passed;
> @@ -1511,7 +1509,7 @@ static void red_channel_client_handle_pong(RedChannelClient *rcc, SpiceMsgPing *
> if (rcc->latency_monitor.roundtrip < 0 ||
> now - ping->timestamp < rcc->latency_monitor.roundtrip) {
> rcc->latency_monitor.roundtrip = now - ping->timestamp;
> - spice_debug("update roundtrip %.2f(ms)", rcc->latency_monitor.roundtrip/1000.0/1000.0);
> + spice_debug("update roundtrip %.2f(ms)", ((double)rcc->latency_monitor.roundtrip)/NSEC_PER_MILLISEC);
> }
>
> rcc->latency_monitor.last_pong_time = now;
> diff --git a/server/red-worker.c b/server/red-worker.c
> index 37d19cd..5771442 100644
> --- a/server/red-worker.c
> +++ b/server/red-worker.c
> @@ -330,7 +330,7 @@ static int red_process_display(RedWorker *worker, uint32_t max_pipe_size, int *r
> n++;
> if ((worker->display_channel &&
> red_channel_all_blocked(&worker->display_channel->common.base))
> - || spice_get_monotonic_time_ns() - start > 10 * 1000 * 1000) {
> + || spice_get_monotonic_time_ns() - start > NSEC_PER_SEC / 100) {
> worker->event_timeout = 0;
> return n;
> }
> diff --git a/server/red-worker.h b/server/red-worker.h
> index 44f35f7..e6e3404 100644
> --- a/server/red-worker.h
> +++ b/server/red-worker.h
> @@ -33,7 +33,7 @@ typedef struct CommonChannelClient {
> } CommonChannelClient;
>
> #define COMMON_CHANNEL_CLIENT(Client) ((CommonChannelClient*)(Client))
> -#define DISPLAY_CLIENT_TIMEOUT 30000000000ULL //nano
> +#define DISPLAY_CLIENT_TIMEOUT (NSEC_PER_SEC * 30)
>
> #define CHANNEL_RECEIVE_BUF_SIZE 1024
> typedef struct CommonChannel {
> diff --git a/server/stream.c b/server/stream.c
> index ae70296..811f7d3 100644
> --- a/server/stream.c
> +++ b/server/stream.c
> @@ -430,8 +430,8 @@ static void display_channel_create_stream(DisplayChannel *display, Drawable *dra
> * the nearest integer, for instance 24 for 23.976.
> */
> uint64_t duration = drawable->creation_time - drawable->first_frame_time;
> - if (duration > (uint64_t)drawable->frames_count * 1000 * 1000 * 1000 / MAX_FPS) {
> - stream->input_fps = ((uint64_t)drawable->frames_count * 1000 * 1000 * 1000 + duration / 2) / duration;
> + if (duration > NSEC_PER_SEC * drawable->frames_count / MAX_FPS) {
> + stream->input_fps = (NSEC_PER_SEC * drawable->frames_count + duration / 2) / duration;
> } else {
> stream->input_fps = MAX_FPS;
> }
> diff --git a/server/stream.h b/server/stream.h
> index e20c8de..7b63402 100644
> --- a/server/stream.h
> +++ b/server/stream.h
> @@ -25,14 +25,14 @@
> #include "red-channel.h"
> #include "image-cache.h"
>
> -#define RED_STREAM_DETACTION_MAX_DELTA ((1000 * 1000 * 1000) / 5) // 1/5 sec
> -#define RED_STREAM_CONTINUS_MAX_DELTA (1000 * 1000 * 1000)
> -#define RED_STREAM_TIMEOUT (1000 * 1000 * 1000)
> +#define RED_STREAM_DETACTION_MAX_DELTA (NSEC_PER_SEC / 5)
> +#define RED_STREAM_CONTINUS_MAX_DELTA NSEC_PER_SEC
> +#define RED_STREAM_TIMEOUT NSEC_PER_SEC
> #define RED_STREAM_FRAMES_START_CONDITION 20
> #define RED_STREAM_GRADUAL_FRAMES_START_CONDITION 0.2
> #define RED_STREAM_FRAMES_RESET_CONDITION 100
> #define RED_STREAM_MIN_SIZE (96 * 96)
> -#define RED_STREAM_INPUT_FPS_TIMEOUT ((uint64_t)5 * 1000 * 1000 * 1000) // 5 sec
> +#define RED_STREAM_INPUT_FPS_TIMEOUT (NSEC_PER_SEC * 5)
> #define RED_STREAM_CHANNEL_CAPACITY 0.8
> /* the client's stream report frequency is the minimum of the 2 values below */
> #define RED_STREAM_CLIENT_REPORT_WINDOW 5 // #frames
> diff --git a/server/utils.h b/server/utils.h
> index 3aa5be0..b85b104 100644
> --- a/server/utils.h
> +++ b/server/utils.h
> @@ -50,13 +50,16 @@ static inline int test_bit(int index, uint32_t val)
>
> typedef int64_t red_time_t;
>
> +#define NSEC_PER_SEC 1000000000LL
> +#define NSEC_PER_MILLISEC 1000000LL
> +
> /* FIXME: consider g_get_monotonic_time (), but in microseconds */
> static inline red_time_t spice_get_monotonic_time_ns(void)
> {
> struct timespec time;
>
> clock_gettime(CLOCK_MONOTONIC, &time);
> - return (red_time_t) time.tv_sec * (1000 * 1000 * 1000) + time.tv_nsec;
> + return NSEC_PER_SEC * time.tv_sec + time.tv_nsec;
> }
>
> static inline red_time_t spice_get_monotonic_time_ms(void)
> --
> 2.6.2
>
> _______________________________________________
> Spice-devel mailing list
> Spice-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/spice-devel
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