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net: lwm2m: return error from lwm2m_engine_get_* functions

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In the future, we will have optional resources that may or may
not be assigned a buffer for data storage.  When these resources
are queried we need to be able to return an error code if the
buffer isn't set.

Signed-off-by: Michael Scott <michael@opensourcefoundries.com>
This commit is contained in:
Michael Scott 2018-04-30 16:38:36 -07:00 • committed by Jukka Rissanen
commit 0db9af5a28
2 changed files with 39 additions and 55 deletions
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72
subsys/net/lib/lwm2m/lwm2m_engine.c
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@ -1687,81 +1687,65 @@ int lwm2m_engine_get_string(char *pathstr, void *buf, u16_t buflen)
return lwm2m_engine_get(pathstr, buf, buflen);
}
u8_t lwm2m_engine_get_u8(char *pathstr)
int lwm2m_engine_get_u8(char *pathstr, u8_t *value)
{
u8_t value = 0;
lwm2m_engine_get(pathstr, &value, 1);
return value;
return lwm2m_engine_get(pathstr, value, 1);
}
u16_t lwm2m_engine_get_u16(char *pathstr)
int lwm2m_engine_get_u16(char *pathstr, u16_t *value)
{
u16_t value = 0;
lwm2m_engine_get(pathstr, &value, 2);
return value;
return lwm2m_engine_get(pathstr, value, 2);
}
u32_t lwm2m_engine_get_u32(char *pathstr)
int lwm2m_engine_get_u32(char *pathstr, u32_t *value)
{
u32_t value = 0;
lwm2m_engine_get(pathstr, &value, 4);
return value;
return lwm2m_engine_get(pathstr, value, 4);
}
u64_t lwm2m_engine_get_u64(char *pathstr)
int lwm2m_engine_get_u64(char *pathstr, u64_t *value)
{
u64_t value = 0;
lwm2m_engine_get(pathstr, &value, 8);
return value;
return lwm2m_engine_get(pathstr, value, 8);
}
s8_t lwm2m_engine_get_s8(char *pathstr)
int lwm2m_engine_get_s8(char *pathstr, s8_t *value)
{
s8_t value = 0;
lwm2m_engine_get(pathstr, &value, 1);
return value;
return lwm2m_engine_get(pathstr, value, 1);
}
s16_t lwm2m_engine_get_s16(char *pathstr)
int lwm2m_engine_get_s16(char *pathstr, s16_t *value)
{
s16_t value = 0;
lwm2m_engine_get(pathstr, &value, 2);
return value;
return lwm2m_engine_get(pathstr, value, 2);
}
s32_t lwm2m_engine_get_s32(char *pathstr)
int lwm2m_engine_get_s32(char *pathstr, s32_t *value)
{
s32_t value = 0;
lwm2m_engine_get(pathstr, &value, 4);
return value;
return lwm2m_engine_get(pathstr, value, 4);
}
s64_t lwm2m_engine_get_s64(char *pathstr)
int lwm2m_engine_get_s64(char *pathstr, s64_t *value)
{
s64_t value = 0;
lwm2m_engine_get(pathstr, &value, 8);
return value;
return lwm2m_engine_get(pathstr, value, 8);
}
bool lwm2m_engine_get_bool(char *pathstr)
int lwm2m_engine_get_bool(char *pathstr, bool *value)
{
return (lwm2m_engine_get_s8(pathstr) != 0);
int ret = 0;
s8_t temp = 0;
ret = lwm2m_engine_get_s8(pathstr, &temp);
if (!ret) {
*value = temp != 0;
}
return ret;
}
int lwm2m_engine_get_float32(char *pathstr, float32_value_t *buf)
int lwm2m_engine_get_float32(char *pathstr, float32_value_t *buf)
{
return lwm2m_engine_get(pathstr, buf, sizeof(float32_value_t));
}
int lwm2m_engine_get_float64(char *pathstr, float64_value_t *buf)
int lwm2m_engine_get_float64(char *pathstr, float64_value_t *buf)
{
return lwm2m_engine_get(pathstr, buf, sizeof(float64_value_t));
}