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sw_limits: add support for maximum frame counts

This commit is contained in:
Gerhard Sittig 2019-05-01 21:26:11 +02:00
parent e86cc12b66
commit 67785f2568
2 changed files with 38 additions and 1 deletions
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4
src/libsigrok-internal.h
View File

@ -1732,8 +1732,10 @@ SR_PRIV int sr_kern_parse(const uint8_t *buf, float *floatval,
struct sr_sw_limits {
uint64_t limit_samples;
uint64_t limit_frames;
uint64_t limit_msec;
uint64_t samples_read;
uint64_t frames_read;
uint64_t start_time;
};
@ -1745,6 +1747,8 @@ SR_PRIV void sr_sw_limits_acquisition_start(struct sr_sw_limits *limits);
SR_PRIV gboolean sr_sw_limits_check(struct sr_sw_limits *limits);
SR_PRIV void sr_sw_limits_update_samples_read(struct sr_sw_limits *limits,
uint64_t samples_read);
SR_PRIV void sr_sw_limits_update_frames_read(struct sr_sw_limits *limits,
uint64_t frames_read);
SR_PRIV void sr_sw_limits_init(struct sr_sw_limits *limits);
#endif

35
src/sw_limits.c
View File

@ -45,6 +45,7 @@
SR_PRIV void sr_sw_limits_init(struct sr_sw_limits *limits)
{
limits->limit_samples = 0;
limits->limit_frames = 0;
limits->limit_msec = 0;
}
@ -66,6 +67,9 @@ SR_PRIV int sr_sw_limits_config_get(struct sr_sw_limits *limits, uint32_t key,
case SR_CONF_LIMIT_SAMPLES:
*data = g_variant_new_uint64(limits->limit_samples);
break;
case SR_CONF_LIMIT_FRAMES:
*data = g_variant_new_uint64(limits->limit_frames);
break;
case SR_CONF_LIMIT_MSEC:
*data = g_variant_new_uint64(limits->limit_msec / 1000);
break;
@ -94,6 +98,9 @@ SR_PRIV int sr_sw_limits_config_set(struct sr_sw_limits *limits, uint32_t key,
case SR_CONF_LIMIT_SAMPLES:
limits->limit_samples = g_variant_get_uint64(data);
break;
case SR_CONF_LIMIT_FRAMES:
limits->limit_frames = g_variant_get_uint64(data);
break;
case SR_CONF_LIMIT_MSEC:
limits->limit_msec = g_variant_get_uint64(data) * 1000;
break;
@ -115,6 +122,7 @@ SR_PRIV int sr_sw_limits_config_set(struct sr_sw_limits *limits, uint32_t key,
SR_PRIV void sr_sw_limits_acquisition_start(struct sr_sw_limits *limits)
{
limits->samples_read = 0;
limits->frames_read = 0;
limits->start_time = g_get_monotonic_time();
}
@ -138,6 +146,14 @@ SR_PRIV gboolean sr_sw_limits_check(struct sr_sw_limits *limits)
}
}
if (limits->limit_frames) {
if (limits->frames_read >= limits->limit_frames) {
sr_dbg("Requested number of frames (%" PRIu64
") reached.", limits->limit_frames);
return TRUE;
}
}
if (limits->limit_msec) {
guint64 now;
now = g_get_monotonic_time();
@ -153,7 +169,7 @@ SR_PRIV gboolean sr_sw_limits_check(struct sr_sw_limits *limits)
}
/**
* Update the amount samples that have been read
* Update the amount of samples that have been read
*
* Update the amount of samples that have been read in the current data
* acquisition run. For each invocation @p samples_read will be accumulated and
@ -168,3 +184,20 @@ SR_PRIV void sr_sw_limits_update_samples_read(struct sr_sw_limits *limits,
{
limits->samples_read += samples_read;
}
/**
* Update the amount of frames that have been read
*
* Update the amount of frames that have been read in the current data
* acquisition run. For each invocation @p frames_read will be accumulated and
* once the configured frame limit has been reached sr_sw_limits_check() will
* return TRUE.
*
* @param limits software limits instance
* @param frames_read the amount of frames that have been read
*/
SR_PRIV void sr_sw_limits_update_frames_read(struct sr_sw_limits *limits,
uint64_t frames_read)
{
limits->frames_read += frames_read;
}