No description
7e36edd80f
Previously, service restarts (either an explicit "restart", or a "stop, start" pair) exhibited a race condition whereby the new (restarting) service process was often spawned before the old (stopping) process had terminated. This may have resulted in the new service process failing to acquire a limited resource (file lock, socket bind, etc.) that the old process had not yet released. Now, a stopping service remains in the SVC_RUNNING state until its exiting process has been reaped by waitpid. This prevents a "stop, start" sequence from spawning a second service process before resources held by the first are released. This enables safe service restarts by stopping the service, waiting for the old service process to terminate, and (only then) starting the new service process. In the event of "restarting" an already stopped service, the previous behavior is maintained whereby the service is simply started. This scenario could be special-cased by the restart command, however, we have observed instances where services are, unintentionally, stopped and started "too quickly," and so simultaneous processes for the same service should never be allowed. Note that this commit alters the behaviors for explicit restarts of critical and oneshot services. Previously these serivces would simply be restarted, whereas now, an explicit restart of a critical service counts as a crash (which may result in a recovery reboot) and oneshot services go into the disabled state. |
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|---|---|---|
| adb | ||
| charger | ||
| cpio | ||
| debuggerd | ||
| fastboot | ||
| gpttool | ||
| include | ||
| init | ||
| libctest | ||
| libcutils | ||
| libdiskconfig | ||
| liblinenoise | ||
| liblog | ||
| libmincrypt | ||
| libnetutils | ||
| libnl_2 | ||
| libpixelflinger | ||
| libsysutils | ||
| libusbhost | ||
| libzipfile | ||
| logcat | ||
| logwrapper | ||
| mkbootimg | ||
| netcfg | ||
| nexus | ||
| rootdir | ||
| run-as | ||
| sdcard | ||
| sh | ||
| toolbox | ||
| .gitignore | ||
| Android.mk | ||
| CleanSpec.mk | ||
| README | ||
| ThirdPartyProject.prop | ||
The system/ directory is intended for pieces of the world that are the core of the embedded linux platform at the heart of Android. These essential bits are required for basic booting, operation, and debugging. They should not depend on libraries outside of system/... (some of them do currently -- they need to be updated or changed) and they should not be required for the simulator build. The license for all these pieces should be clean (Apache2, BSD, or MIT). Currently system/bluetooth/... and system/extra/... have some pieces with GPL/LGPL licensed code. Assorted Issues: - pppd depends on libutils for logging - pppd depends on libcrypt/libcrypto - init, linker, debuggerd, toolbox, usbd depend on libcutils - should probably rename bionic to libc