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Introduce thread local storage

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Use thread local storage to store a pointer to the thread we
are running on. This will allow to remove thread info from
Position class.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-04-06 12:39:07 +02:00
parent 797c960d20
commit 699f700162
3 changed files with 22 additions and 3 deletions
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10
src/thread.cpp
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@@ -34,11 +34,15 @@ namespace { extern "C" {
// start_routine() is the C function which is called when a new thread
// is launched. It is a wrapper to member function pointed by start_fn.
long start_routine(Thread* th) { (th->*(th->start_fn))(); return 0; }
long start_routine(Thread* th) {
Threads.set_this_thread(th); // Save pointer into thread local storage
(th->*(th->start_fn))();
return 0;
}
} }
// Thread c'tor starts a newly-created thread of execution that will call
// the idle loop function pointed by start_fn going immediately to sleep.
@@ -201,6 +205,7 @@ bool Thread::is_available_to(const Thread& master) const {
void ThreadsManager::init() {
tls_init(tlsKey);
cond_init(sleepCond);
lock_init(splitLock);
timer = new Thread(&Thread::timer_loop);
@@ -219,6 +224,7 @@ ThreadsManager::~ThreadsManager() {
delete timer;
lock_destroy(splitLock);
cond_destroy(sleepCond);
tls_destroy(tlsKey);
}