Commit Graph

6 Commits

Author SHA1 Message Date
Jacob Erlbeck ac4ed17dbd stats: Add OSMO prefix to STAT_ITEM_NOVALUE_ID
This symbol is globally visible and therefore should have an OSMO
prefix like the other identifiers exported by stat_item.h.

Sponsored-by: On-Waves ehf
2015-12-08 10:33:15 +01:00
Harald Welte b32a19467f stat_item.c: Fix compiler warnings
CC       stat_item.lo
stat_item.c: In function 'osmo_stat_item_group_alloc': stat_item.c:84:28: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
   group->items[item_idx] = (void *)items_size;
                            ^
stat_item.c:98:24: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    ((uint8_t *)items + (int)group->items[item_idx]);
                        ^
2015-11-20 10:22:14 +01:00
Jacob Erlbeck fc9533d6c4 stats: Add osmo_ name prefix to identifiers
Since the the stat_item and stats functions and data types are meant
to be exported, they get an osmo_ prefix.

Sponsored-by: On-Waves ehf

[hfreyther: Prepended the enum values too. This was requested by
Jacob]
2015-11-02 15:39:01 +01:00
Jacob Erlbeck c6a7108828 stats: Add stat_item_for_each functions
This commit adds the following functions:

  stat_item_for_each_group     Call a handler for each group
  stat_item_for_each_item      Call a handler for each item of a
                               group

Sponsored-by: On-Waves ehf
2015-10-28 23:51:24 +01:00
Jacob Erlbeck b27b352e93 stats: Use a global index for stat item values
Currently each stat item has a separate index value which basically
counts each single value added to the item and which can be used by
a reporter to get all new values that have not been reported yet.
The drawback is, that such an index must be stored for each stat
item.

This commit introduces a global index which is incremented for each
new stat item value. This index is then stored together with the item
value. So a single stored index per reporter is sufficient to make
sure that only new values are reported.

Sponsored-by: On-Waves ehf
2015-10-28 23:51:24 +01:00
Jacob Erlbeck 9732cb4a92 stats: Add stat_item for value monitoring
This commit adds instrumentation function to gather measurement
and statistical values similar to counter groups.

Multiple values can be stored per item, which can be retrieved in
FIFO order. Getting values from the item does not modify its state to
allow for multiple independant backends (e.g. VTY and statd).

When a new value is set, the oldest value gets silently overwritten.
Lost values are skipped when getting values from the item.

Sponsored-by: On-Waves ehf
2015-10-28 23:51:04 +01:00