diff options
| author | Elliott Hughes <enh@google.com> | 2015-06-12 18:02:20 -0700 |
|---|---|---|
| committer | Elliott Hughes <enh@google.com> | 2015-06-17 15:21:52 -0700 |
| commit | e79d0d556f894696291cef89ccaf64efe45d11ad (patch) | |
| tree | 514b5edeefddc7fb615f0304a445b39598b5e62a /init/init.cpp | |
| parent | d50393057a6551c3bb498ed3a3bb7bd9eeb48225 (diff) | |
| download | system_core-e79d0d556f894696291cef89ccaf64efe45d11ad.zip system_core-e79d0d556f894696291cef89ccaf64efe45d11ad.tar.gz system_core-e79d0d556f894696291cef89ccaf64efe45d11ad.tar.bz2 | |
init support for cgroups.
This adds the "writepid" option that instructs init to write the child's
pid to the given filenames (such as /dev/cpuctl/bg_non_interactive/cgroup.procs
and/or /dev/cpuset/foreground/cgroup.procs).
Bug: http://b/21163745
Change-Id: I121bb22aa208bc99c4fb334eb552fdd5bcc47c1a
(cherry picked from commit d62f0608d9d67bf647cf15debbd163e84584fe44)
Diffstat (limited to 'init/init.cpp')
| -rw-r--r-- | init/init.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/init/init.cpp b/init/init.cpp index 85d7909..93fe944 100644 --- a/init/init.cpp +++ b/init/init.cpp @@ -290,6 +290,16 @@ void service_start(struct service *svc, const char *dynamic_args) freecon(scon); scon = NULL; + if (svc->writepid_files_) { + std::string pid_str = android::base::StringPrintf("%d", pid); + for (auto& file : *svc->writepid_files_) { + if (!android::base::WriteStringToFile(pid_str, file)) { + ERROR("couldn't write %s to %s: %s\n", + pid_str.c_str(), file.c_str(), strerror(errno)); + } + } + } + if (svc->ioprio_class != IoSchedClass_NONE) { if (android_set_ioprio(getpid(), svc->ioprio_class, svc->ioprio_pri)) { ERROR("Failed to set pid %d ioprio = %d,%d: %s\n", |