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Code

perdump: print relative receive timestamp

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- perdump.h (struct result_ops), perdump.c (analyze, pcap_record): pass
  receive timestamp to reporter
- per-text.c (t_line, flush, text_undecided, text_packet): print relative
  receive timestamp before each packet
This commit is contained in:
Werner Almesberger 2011-01-19 19:34:16 -03:00
parent 6002759464
commit 6282c334bc
3 changed files with 18 additions and 10 deletions
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11
tools/atrf-txrx/per-text.c
View File

@ -17,30 +17,34 @@
static char line[65] = ""; static char line[65] = "";
static double t_line;
static int packets = 0, garbled = 0, bad = 0, skipped = 0; static int packets = 0, garbled = 0, bad = 0, skipped = 0;
static int is_bad = 0; static int is_bad = 0;
static void flush(void) static void flush(void)
{ {
if (*line) if (*line) {
printf("%9.3f ", t_line);
printf("%s\n", line); printf("%s\n", line);
}
*line = 0; *line = 0;
} }
static void text_undecided(int symbols) static void text_undecided(int symbols, double t)
{ {
int i; int i;
flush(); flush();
printf("%9.3f ", t);
for (i = 0; i != symbols/4; i++) for (i = 0; i != symbols/4; i++)
putchar('?'); putchar('?');
putchar('\n'); putchar('\n');
} }
static void text_packet(int symbols, int skip) static void text_packet(int symbols, int skip, double t)
{ {
int i; int i;
@ -54,6 +58,7 @@ static void text_packet(int symbols, int skip)
for (i = 0; i != symbols/4; i++) for (i = 0; i != symbols/4; i++)
line[i] = '-'; line[i] = '-';
line[i] = 0; line[i] = 0;
t_line = t;
packets++; packets++;
is_bad = 0; is_bad = 0;
} }

11
tools/atrf-txrx/perdump.c
View File

@ -25,13 +25,16 @@
static const struct result_ops *ops; static const struct result_ops *ops;
static void analyze(uint8_t *buf, int len) static void analyze(uint8_t *buf, int len, double ts)
{ {
static int last = -1; static int last = -1;
static double t0 = 0;
int freq[256]; int freq[256];
uint8_t best = 0; uint8_t best = 0;
int i; int i;
if (!t0)
t0 = ts;
for (i = 0; i != 256; i++) for (i = 0; i != 256; i++)
freq[i] = 0; freq[i] = 0;
for (i = 0; i != len; i++) { for (i = 0; i != len; i++) {
@ -40,12 +43,12 @@ static void analyze(uint8_t *buf, int len)
best = buf[i]; best = buf[i];
} }
if (freq[best] <= len >> 1 && freq[best] != len) { if (freq[best] <= len >> 1 && freq[best] != len) {
ops->undecided(len*2); ops->undecided(len*2, ts-t0);
if (last != -1) if (last != -1)
last++; /* probably :-) */ last++; /* probably :-) */
return; return;
} }
ops->packet(len*2, last == -1 ? 0 : (uint8_t) (best-last-1)); ops->packet(len*2, last == -1 ? 0 : (uint8_t) (best-last-1), ts-t0);
last = best; last = best;
for (i = 0; i != len; i++) { for (i = 0; i != len; i++) {
uint8_t delta = buf[i] ^ best; uint8_t delta = buf[i] ^ best;
@ -87,7 +90,7 @@ static int pcap_record(FILE *file, const char *name)
fprintf(stderr, "file truncated\n"); fprintf(stderr, "file truncated\n");
exit(1); exit(1);
} }
analyze(buf, hdr.caplen); analyze(buf, hdr.caplen, hdr.ts_sec+hdr.ts_usec/1000000.0);
return 1; return 1;
} }

4
tools/atrf-txrx/perdump.h
View File

@ -16,8 +16,8 @@
struct result_ops { struct result_ops {
void (*begin)(void); void (*begin)(void);
void (*undecided)(int symbols); void (*undecided)(int symbols, double t);
void (*packet)(int symbols, int skip); void (*packet)(int symbols, int skip, double t);
void (*error)(int symbol); void (*error)(int symbol);
void (*finish)(void); void (*finish)(void);
}; };