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| author | Glenn Kasten <gkasten@google.com> | 2012-03-16 09:43:19 -0700 |
|---|---|---|
| committer | Glenn Kasten <gkasten@google.com> | 2012-04-20 10:31:50 -0700 |
| commit | 69bfb1f099164ae7ba44b5d0f7ba7c47cbbafd4d (patch) | |
| tree | 23bd2952b82061be604ddc9d2945b308c47c42a2 /libcutils | |
| parent | c28cbb2c5abe9e93a75185dc7c9e4925a0f9a87a (diff) | |
| download | system_core-69bfb1f099164ae7ba44b5d0f7ba7c47cbbafd4d.zip system_core-69bfb1f099164ae7ba44b5d0f7ba7c47cbbafd4d.tar.gz system_core-69bfb1f099164ae7ba44b5d0f7ba7c47cbbafd4d.tar.bz2 | |
Scheduling group cleanup - add comment, SP_DEFAULT
Also tid == 0 maps to gettid() on platforms that support it.
This is needed by mediaserver code that was formerly using
the old C++ API.
Change-Id: I8baaa3e42315c9b924cec26b6da01e7cb69e0078
Diffstat (limited to 'libcutils')
| -rw-r--r-- | libcutils/sched_policy.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c index 35d362a..345532b 100644 --- a/libcutils/sched_policy.c +++ b/libcutils/sched_policy.c @@ -189,6 +189,11 @@ static int getSchedulerGroup(int tid, char* buf, size_t bufLen) int get_sched_policy(int tid, SchedPolicy *policy) { +#ifdef HAVE_GETTID + if (tid == 0) { + tid = gettid(); + } +#endif pthread_once(&the_once, __initialize); if (__sys_supports_schedgroups) { @@ -219,8 +224,23 @@ int get_sched_policy(int tid, SchedPolicy *policy) return 0; } +/* Re-map SP_DEFAULT to the system default policy, and leave other values unchanged. + * Call this any place a SchedPolicy is used as an input parameter. + * Returns the possibly re-mapped policy. + */ +static inline SchedPolicy _policy(SchedPolicy p) +{ + return p == SP_DEFAULT ? SP_SYSTEM_DEFAULT : p; +} + int set_sched_policy(int tid, SchedPolicy policy) { +#ifdef HAVE_GETTID + if (tid == 0) { + tid = gettid(); + } +#endif + policy = _policy(policy); pthread_once(&the_once, __initialize); #if POLICY_DEBUG @@ -275,6 +295,7 @@ int set_sched_policy(int tid, SchedPolicy policy) const char *get_sched_policy_name(SchedPolicy policy) { + policy = _policy(policy); static const char * const strings[SP_CNT] = { [SP_BACKGROUND] = "bg", [SP_FOREGROUND] = "fg", |