diff options
Diffstat (limited to 'libartbase/base/utils.h')
| -rw-r--r-- | libartbase/base/utils.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libartbase/base/utils.h b/libartbase/base/utils.h index 4b86651f95..fdb7f6650a 100644 --- a/libartbase/base/utils.h +++ b/libartbase/base/utils.h @@ -152,14 +152,18 @@ inline void ForceRead(const T* pointer) { // there is an I/O error. std::string GetProcessStatus(const char* key); -// Copy a prefix of /proc/tid/stat of the given length into buf. Return the number of bytes -// actually read, 0 on error. +// Copy a prefix of /proc/pid/task/tid/stat of the given length into buf. Return the number of +// bytes actually read, 0 on error. size_t GetOsThreadStat(pid_t tid, char* buf, size_t len); -// Return a short prefix of /proc/tid/stat as quickly and robustly as possible. Used for debugging -// timing issues and possibly issues with /proc itself. Always atomic. +// Return a short prefix of /proc/pid/task/tid/stat as quickly and robustly as possible. Used for +// debugging timing issues and possibly issues with /proc itself. Always atomic. std::string GetOsThreadStatQuick(pid_t tid); +// Given a /proc/.../stat string or prefix, such as those returned by the above, return the single +// character representation of the thread state from that string, or '?' if it can't be found. +char GetStateFromStatString(const std::string& stat_output); + // Return a concatenation of the output of GetOsThreadStatQuick(tid) for all other tids. // Less robust against concurrent change, but individual stat strings should still always // be consistent. Called only when we are nearly certain to crash anyway. |