installd: add quota API for project IDs.
Add an API to retrieve quota usage on filesystems that support project
ID quotas.
Bug: 146419093
Test: manual test, more tests coming
Change-Id: Ic997e398f0eb1db85768155a779b3a81a060dff3
diff --git a/cmds/installd/QuotaUtils.cpp b/cmds/installd/QuotaUtils.cpp
index b238dd3..f2abf3a 100644
--- a/cmds/installd/QuotaUtils.cpp
+++ b/cmds/installd/QuotaUtils.cpp
@@ -97,6 +97,26 @@
}
}
+int64_t GetOccupiedSpaceForProjectId(const std::string& uuid, int projectId) {
+ const std::string device = FindQuotaDeviceForUuid(uuid);
+ if (device == "") {
+ return -1;
+ }
+ struct dqblk dq;
+ if (quotactl(QCMD(Q_GETQUOTA, PRJQUOTA), device.c_str(), projectId,
+ reinterpret_cast<char*>(&dq)) != 0) {
+ if (errno != ESRCH) {
+ PLOG(ERROR) << "Failed to quotactl " << device << " for Project ID " << projectId;
+ }
+ return -1;
+ } else {
+#if MEASURE_DEBUG
+ LOG(DEBUG) << "quotactl() for Project ID " << projectId << " " << dq.dqb_curspace;
+#endif
+ return dq.dqb_curspace;
+ }
+}
+
int64_t GetOccupiedSpaceForGid(const std::string& uuid, gid_t gid) {
const std::string device = FindQuotaDeviceForUuid(uuid);
if (device == "") {
diff --git a/cmds/installd/QuotaUtils.h b/cmds/installd/QuotaUtils.h
index 9ad170f..96aca04 100644
--- a/cmds/installd/QuotaUtils.h
+++ b/cmds/installd/QuotaUtils.h
@@ -35,6 +35,8 @@
/* Get the current occupied space in bytes for a gid or -1 if fails */
int64_t GetOccupiedSpaceForGid(const std::string& uuid, gid_t gid);
+/* Get the current occupied space in bytes for a project id or -1 if fails */
+int64_t GetOccupiedSpaceForProjectId(const std::string& uuid, int projectId);
} // namespace installd
} // namespace android