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	make it easier to process collectd output - ploot - simple plotting tools
	git clone git://bitreich.org/ploot git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65…
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	---
	commit 1da236f9d56f1181e2612354a1b54ff476dbe61c
	parent f9e8a55f3bafb5dad451b50fedab9eb5dfd4cb20
	Author: Josuah Demangeon <[email protected]>
	Date: Tue, 6 Feb 2018 23:47:26 +0100

	make it easier to process collectd output

	Diffstat:
	M ploot.c \| 17 +++++++++--------

	1 file changed, 9 insertions(+), 8 deletions(-)
	---
	diff --git a/ploot.c b/ploot.c
	@@ -85,7 +85,7 @@ title(char *str, int width)
	{
	if (str == NULL)
	return;
	- printf("%*s\n", (int)(width + strlen(str) + MARGIN) / 2, str);
	+ printf("%*s\n", (int)(width + strlen(str)) / 2 + MARGIN, str);
	}

	/*
	@@ -179,20 +179,21 @@ read_simple(double buf[MAX_VAL])
	}

	/*
	- * Read a format with blank-separated time_t-double pairs, one per line and sa…
	+ * Read a format with comma separated time_t-double pairs, one per line and sa…
	* the last `MAX_WIDTH' values into `tbuf' and `vbuf' which must both be at
	- * least MAX_VAL wide and return a pointer to the last element of `vbuf' or NU…
	- * input contains error.
	+ * least MAX_VAL wide and return a pointer to the last element of `vbuf' or
	+ * NULL if the input contains error.
	*/
	time_t *
	read_time_series(double vbuf, time_t tbuf)
	{
	size_t p, pos, nul, len;
	- double vrbuf[MAX_VAL], vval;
	+ double vrbuf[MAX_VAL], vval, dval;
	time_t trbuf[MAX_VAL], tval;

	len = LEN(vrbuf);
	- for (p = pos = 0; scanf("%zd %lf\n", &tval, &vval) > 0; p++) {
	+ for (p = pos = 0; scanf("%lf,%lf\n", &dval, &vval) > 0; p++) {
	+ tval = (time_t)dval;
	RING_ADD(trbuf, len, pos, tval);
	RING_ADD(vrbuf, len, nul, vval);
	}
	@@ -209,7 +210,7 @@ read_time_series(double vbuf, time_t tbuf)
	* value in `step' amount of time, by setting a value to -1.
	*/
	double *
	-fill_gaps(time_t tbeg, time_t tend, double *vbuf, time_t step)
	+skip_gaps(time_t tbeg, time_t tend, double *vbuf, time_t step)
	{
	size_t p, pos, len;
	time_t *tp, toff;
	@@ -274,7 +275,7 @@ main(int argc, char **argv)
	usage();

	tend = read_time_series(vbuf, tbuf);
	- vend = fill_gaps(tbuf, tend, vbuf, flag_o);
	+ vend = skip_gaps(tbuf, tend, vbuf, flag_o);

	plot(flag_h, vbuf, vend, flag_t);
	return 0;