X-Git-Url: http://xvm.mit.edu/gitweb/invirt/third/libt4.git/blobdiff_plain/5fd8cc8409d0efadc07dfe8d6774ad9ff477663d..eeab3e6cade87c1fe0a5f3d93522e12ccb9ec2ab:/rpc/thr_pool.cc

diff --git a/rpc/thr_pool.cc b/rpc/thr_pool.cc
index f9f32fa..73f94f4 100644
--- a/rpc/thr_pool.cc
+++ b/rpc/thr_pool.cc
@@ -1,69 +1,42 @@
-#include "slock.h"
 #include "thr_pool.h"
 #include <stdlib.h>
 #include <errno.h>
 #include "lang/verify.h"
 
-static void *
-do_worker(void *arg)
-{
-	ThrPool *tp = (ThrPool *)arg;
-	while (1) {
-		ThrPool::job_t j;
-		if (!tp->takeJob(&j))
-			break; //die
-
-		(void)(j.f)(j.a);
-	}
-	pthread_exit(NULL);
-}
-
-//if blocking, then addJob() blocks when queue is full
-//otherwise, addJob() simply returns false when queue is full
+// if blocking, then addJob() blocks when queue is full
+// otherwise, addJob() simply returns false when queue is full
 ThrPool::ThrPool(int sz, bool blocking)
 : nthreads_(sz),blockadd_(blocking),jobq_(100*sz) 
 {
-	pthread_attr_init(&attr_);
-	pthread_attr_setstacksize(&attr_, 128<<10);
-
-	for (int i = 0; i < sz; i++) {
-		pthread_t t;
-		VERIFY(pthread_create(&t, &attr_, do_worker, (void *)this) ==0);
-		th_.push_back(t);
-	}
+	for (int i=0; i<nthreads_; i++)
+        th_.emplace_back(&ThrPool::do_worker, this);
 }
 
-//IMPORTANT: this function can be called only when no external thread 
-//will ever use this thread pool again or is currently blocking on it
+// IMPORTANT: this function can be called only when no external thread 
+// will ever use this thread pool again or is currently blocking on it
 ThrPool::~ThrPool()
 {
-	for (int i = 0; i < nthreads_; i++) {
-		job_t j;
-		j.f = (void *(*)(void *))NULL; //poison pill to tell worker threads to exit
-		jobq_.enq(j);
-	}
-
-	for (int i = 0; i < nthreads_; i++) {
-		VERIFY(pthread_join(th_[i], NULL)==0);
-	}
+	for (int i=0; i<nthreads_; i++)
+		jobq_.enq(job_t());
 
-	VERIFY(pthread_attr_destroy(&attr_)==0);
+	for (int i=0; i<nthreads_; i++)
+        th_[i].join();
 }
 
 bool 
-ThrPool::addJob(void *(*f)(void *), void *a)
+ThrPool::addJob(const job_t &j)
 {
-	job_t j;
-	j.f = f;
-	j.a = a;
-
 	return jobq_.enq(j,blockadd_);
 }
 
-bool 
-ThrPool::takeJob(job_t *j)
+void
+ThrPool::do_worker()
 {
-	jobq_.deq(j);
-	return (j->f!=NULL);
+    job_t j;
+	while (1) {
+        jobq_.deq(&j);
+		if (!j)
+			break;
+		j();
+	}
 }
-