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Commit 55c0da32 authored by Martijn Coenen's avatar Martijn Coenen
Browse files

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
parent d17f197e

cmds/installd/QuotaUtils.cpp

+20 −0
Original line number Diff line number Diff line
@@ -97,6 +97,26 @@ int64_t GetOccupiedSpaceForUid(const std::string& uuid, uid_t uid) { 
    }

}



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 == "") {

cmds/installd/QuotaUtils.h

+2 −0
Original line number Diff line number Diff line
@@ -35,6 +35,8 @@ int64_t GetOccupiedSpaceForUid(const std::string& uuid, uid_t uid); 
/* 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