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Refactor GENERIC_RESOURCE macro

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Now callback functions get the URI of the request, this allows to use a
single resource for multiple different URIs.
The is_json flag is now gone for the to-string function, instead the
macro has an is_str flag. If set this automagically produces quotes
around the string for json output.
Now from-string functions can return an error-code, 0 for success, -1
for error.
This commit is contained in:
Ralf Schlatterbeck 2016-02-26 07:54:05 +01:00
parent c7daa7c45d
commit c6165a3bcf
9 changed files with 106 additions and 68 deletions
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15
examples/osd/arduino-ledstrip/sketch.pde
View file

@ -46,27 +46,25 @@ static uint8_t name_to_offset (const char * name)
}
static size_t
color_to_string (const char *name, uint8_t is_json, char *buf, size_t bsize)
color_to_string (const char *name, const char *uri, char *buf, size_t bsize)
{
char *fmt = "%d";
if (is_json) {
fmt = "\"%d\"";
}
return snprintf (buf, bsize, fmt, color_rgb [name_to_offset (name)]);
return snprintf (buf, bsize, "%d", color_rgb [name_to_offset (name)]);
}
void color_from_string (const char *name, const char *s)
int color_from_string (const char *name, const char *uri, const char *s)
{
color_rgb [name_to_offset (name)] = atoi (s);
Driver.begin();
Driver.SetColor(color_rgb [0], color_rgb [1], color_rgb [2]);
Driver.end();
return 0;
}
GENERIC_RESOURCE
( red
, RED_LED
, s
, 1
, color_from_string
, color_to_string
);
@ -75,6 +73,7 @@ GENERIC_RESOURCE
( green
, GREEN_LED
, s
, 1
, color_from_string
, color_to_string
);
@ -83,6 +82,7 @@ GENERIC_RESOURCE
( blue
, BLUE_LED
, s
, 1
, color_from_string
, color_to_string
);
@ -136,4 +136,3 @@ void loop (void)
}
*/
}