bitbake: monitordisk: add event

The current disk usage is interesting and may be worth logging over
time as part of the build statistics. Instead of re-implementing the
code and the configuration option (BB_DISKMON_DIRS), the information
gathered by monitordisk.py is made available to buildstats.bbclass via
a new event.

This has pros and cons:
- there is already a useful default configuration for "interesting" directories
- no code duplication
- on the other hand, users cannot configure recording separately from
  monitoring (probably not that important)

(Bitbake rev: f065ac17d0031dca6309ddbff18c8792630de865)

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/bitbake/lib/bb/monitordisk.py b/bitbake/lib/bb/monitordisk.py
index d3d2106841..833cd3d344 100644
--- a/bitbake/lib/bb/monitordisk.py
+++ b/bitbake/lib/bb/monitordisk.py
@@ -205,6 +205,7 @@ class diskMonitor:
         """ Take action for the monitor """
 
         if self.enableMonitor:
+            diskUsage = {}
             for k, attributes in self.devDict.items():
                 path, action = k
                 dev, minSpace, minInode = attributes
@@ -214,6 +215,11 @@ class diskMonitor:
                 # The available free space, integer number
                 freeSpace = st.f_bavail * st.f_frsize
 
+                # Send all relevant information in the event.
+                freeSpaceRoot = st.f_bfree * st.f_frsize
+                totalSpace = st.f_blocks * st.f_frsize
+                diskUsage[dev] = bb.event.DiskUsageSample(freeSpace, freeSpaceRoot, totalSpace)
+
                 if minSpace and freeSpace < minSpace:
                     # Always show warning, the self.checked would always be False if the action is WARN
                     if self.preFreeS[k] == 0 or self.preFreeS[k] - freeSpace > self.spaceInterval and not self.checked[k]:
@@ -257,4 +263,6 @@ class diskMonitor:
                         self.checked[k] = True
                         rq.finish_runqueue(True)
                         bb.event.fire(bb.event.DiskFull(dev, 'inode', freeInode, path), self.configuration)
+
+            bb.event.fire(bb.event.MonitorDiskEvent(diskUsage), self.configuration)
         return