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-rw-r--r--src/graph.c51
-rw-r--r--src/grid.c5
-rw-r--r--src/readconfig.c42
-rw-r--r--src/tagr.h20
4 files changed, 85 insertions, 33 deletions
diff --git a/src/graph.c b/src/graph.c
index 80b2a97..89f02a1 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -56,4 +56,14 @@ int graph_v_margin[2] = { 14, 35 };
-/* FIXME: I18N?? */
-char *rate_unit = "Bytes per Second";
+struct monitor default_monitor = {
+ NULL,
+ NULL,
+ NULL,
+ "Bytes per Second", /* rate_unit, FIXME: I18N?? */
+ 0, /* max_rate */
+ 0, /* max_adjust */
+ 1.0, /* scale */
+ 0.1, /* ystep */
+ 0, /* ystep_absolute */
+ 0 /* swap */
+};
@@ -72,2 +82,20 @@ draw_vtext (gdImagePtr graph, int color, const char *text)
+static double
+find_max (queue_t *dataq)
+{
+ int i, n = queue_count (dataq);
+ double mval = 0;
+ struct traffic_history *th;
+
+ for (i = 0; i < n; i++)
+ {
+ th = queue_get_ptr (dataq, i);
+ if (mval < th->inrate)
+ mval = th->inrate;
+ if (mval < th->outrate)
+ mval = th->outrate;
+ }
+ return mval;
+}
+
int
@@ -91,3 +119,15 @@ draw_graph (FILE *fp,
grid_t grid;
- double ymax = mon->max_rate;
+ double ymax;
+
+ if (mon->max_adjust)
+ {
+ double amax = find_max (dataq);
+ if (amax > mon->max_rate)
+ {
+ unsigned long n = (amax - mon->max_rate + mon->max_adjust - 1) /
+ mon->max_adjust;
+ mon->max_rate += n * mon->max_adjust;
+ }
+ }
+ ymax = mon->max_rate;
@@ -97,3 +137,3 @@ draw_graph (FILE *fp,
#define ytr(y) \
- (unsigned long) ((ymax >= (y) ? (ymax - (y)) : ymax) * \
+ (unsigned long) ((ymax >= (y) ? (ymax - (y)) : 0) * \
yscale + graph_h_margin[1])
@@ -215,4 +255,3 @@ draw_graph (FILE *fp,
- draw_vtext (graph, i_grid,
- mon->rate_unit ? mon->rate_unit : rate_unit);
+ draw_vtext (graph, i_grid, mon->rate_unit);
diff --git a/src/grid.c b/src/grid.c
index 08e1c08..4ecb576 100644
--- a/src/grid.c
+++ b/src/grid.c
@@ -97,3 +97,6 @@ ygrid_create (grid_t grid, void *cdata)
struct ygrid_data *gr = xmalloc (sizeof (*gr));
- gr->step = mon->ystep;
+ if (mon->ystep_absolute)
+ gr->step = mon->ystep;
+ else
+ gr->step = mon->ystep * mon->max_rate;
return gr;
diff --git a/src/readconfig.c b/src/readconfig.c
index 1c22cb1..a60f19d 100644
--- a/src/readconfig.c
+++ b/src/readconfig.c
@@ -100,5 +100,6 @@ cb_monitor (enum grecs_callback_command cmd,
mon = xzalloc (sizeof (*mon));
+ *mon = default_monitor;
mon->id = strdup (value->v.string);
- mon->scale = 1.0;
- mon->ystep = 100.;
+ mon->name = NULL;
+ mon->dir = NULL;
*pdata = mon;
@@ -108,17 +109,22 @@ cb_monitor (enum grecs_callback_command cmd,
mon = *pdata;
- if (mon->max_rate == 0)
+ if (strcmp (mon->id, "default") == 0)
+ default_monitor = *mon;
+ else
{
- grecs_error (locus, 0, _("maximum speed not set"));
- free (mon);
- return 0;
+ if (mon->max_rate == 0 && mon->max_adjust == 0)
+ {
+ grecs_error (locus, 0, _("maximum speed not set"));
+ free (mon);
+ return 0;
+ }
+ if (!mon->name)
+ mon->name = strdup (mon->id);
+ if (!mon->dir)
+ mon->dir = strdup (mon->id);
+ if (mon_count == 0)
+ obstack_init (&mon_stack);
+
+ obstack_grow (&mon_stack, mon, sizeof *mon);
+ mon_count++;
}
- if (!mon->name)
- mon->name = strdup (mon->id);
- if (!mon->dir)
- mon->dir = strdup (mon->id);
- if (mon_count == 0)
- obstack_init (&mon_stack);
-
- obstack_grow (&mon_stack, mon, sizeof *mon);
- mon_count++;
free (mon);
@@ -176,2 +182,4 @@ static struct grecs_keyword monitor_kw[] = {
grecs_type_ulong, NULL, offsetof(struct monitor, max_rate) },
+ { "max-adjust", NULL, N_("Adjust maximum by this value when needed"),
+ grecs_type_ulong, NULL, offsetof(struct monitor, max_adjust) },
{ "rate-units", NULL, N_("Name of rate units"),
@@ -184,2 +192,4 @@ static struct grecs_keyword monitor_kw[] = {
cb_double},
+ { "y-step-absolute", NULL, N_("y-step is an absolute value"),
+ grecs_type_bool, NULL, offsetof(struct monitor, ystep_absolute) },
{ "swap", NULL, N_("Swap in and out rates"),
@@ -490,4 +500,2 @@ static struct grecs_keyword tagr_kw[] = {
- { "rate-units", NULL, N_("Name of rate units"),
- grecs_type_string, &rate_unit },
{ "number-suffixes", N_("suffixes"),
diff --git a/src/tagr.h b/src/tagr.h
index 5d7c3e0..6ed7ca2 100644
--- a/src/tagr.h
+++ b/src/tagr.h
@@ -45,10 +45,12 @@ struct monitor
{
- char *id;
- char *name;
- char *dir;
- char *rate_unit;
- unsigned long max_rate;
- double scale;
- double ystep;
- int swap;
+ char *id; /* Monitor ID */
+ char *name; /* Full name */
+ char *dir; /* Output directory */
+ char *rate_unit; /* Rate units */
+ unsigned long max_rate; /* Max. rate value */
+ unsigned long max_adjust; /* Adjustment for max. rate */
+ double scale; /* Y (rate) scale */
+ double ystep; /* Step of Y grid, in fractions of max_rate */
+ int ystep_absolute; /* When true, ystep is an absolute value */
+ int swap; /* Swap input and output rates */
};
@@ -77,4 +79,4 @@ extern int html_input_line;
extern int verbose_level;
-extern char *rate_unit;
+extern struct monitor default_monitor;
extern int percent_option;

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