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Store computed reception time in the message struct so we don't rely on

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the message being emitted immediately.

Fix computation of reception time so it's more sensible (the block timestamp
is some time after reception of the _end_ of the block, not the start) - this
means that message-emission times are always later than message-reception
times in SBS output, which is a bit more sensible.

Use clock_gettime in preference to ftime.
This commit is contained in:
Oliver Jowett 2015-02-08 17:46:01 +00:00
parent 1584955080
commit 4e177c2d64
7 changed files with 76 additions and 31 deletions
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6
dump1090.c
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@ -173,7 +173,7 @@ void modesInit(void) {
{Modes.net_sndbuf_size = MODES_NET_SNDBUF_MAX;}
// Initialise the Block Timers to something half sensible
ftime(&Modes.stSystemTimeBlk);
clock_gettime(CLOCK_REALTIME, &Modes.stSystemTimeBlk);
for (i = 0; i < MODES_ASYNC_BUF_NUMBER; i++)
{Modes.stSystemTimeRTL[i] = Modes.stSystemTimeBlk;}
@ -357,7 +357,7 @@ void rtlsdrCallback(unsigned char *buf, uint32_t len, void *ctx) {
Modes.iDataIn &= (MODES_ASYNC_BUF_NUMBER-1); // Just incase!!!
// Get the system time for this block
ftime(&Modes.stSystemTimeRTL[Modes.iDataIn]);
clock_gettime(CLOCK_REALTIME, &Modes.stSystemTimeRTL[Modes.iDataIn]);
if (len > MODES_ASYNC_BUF_SIZE) {len = MODES_ASYNC_BUF_SIZE;}
@ -430,7 +430,7 @@ void readDataFromFile(void) {
Modes.iDataIn &= (MODES_ASYNC_BUF_NUMBER-1); // Just incase!!!
// Get the system time for this block
ftime(&Modes.stSystemTimeRTL[Modes.iDataIn]);
clock_gettime(CLOCK_REALTIME, &Modes.stSystemTimeRTL[Modes.iDataIn]);
// Queue the new data
Modes.pData[Modes.iDataIn] = Modes.pFileData;