libuv 1.45.0, #include cleanup, probably something else.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4308 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/libuv/test/test-thread-affinity.c

@@ -0,0 +1,136 @@
+/* Copyright libuv project contributors. All rights reserved.
+ */
+
+#include "uv.h"
+#include "task.h"
+
+#include <string.h>
+
+#ifndef NO_CPU_AFFINITY
+
+static void check_affinity(void* arg) {
+  int r;
+  char* cpumask;
+  int cpumasksize;
+  uv_thread_t tid;
+
+  cpumask = (char*)arg;
+  cpumasksize = uv_cpumask_size();
+  ASSERT(cpumasksize > 0);
+  tid = uv_thread_self();
+  r = uv_thread_setaffinity(&tid, cpumask, NULL, cpumasksize);
+  ASSERT(r == 0);
+  r = uv_thread_setaffinity(&tid, cpumask + cpumasksize, cpumask, cpumasksize);
+  ASSERT(r == 0);
+}
+
+
+TEST_IMPL(thread_affinity) {
+  int t1first;
+  int t1second;
+  int t2first;
+  int t2second;
+  int cpumasksize;
+  char* cpumask;
+  int ncpus;
+  int r;
+  int c;
+  int i;
+  uv_thread_t threads[3];
+
+#ifdef _WIN32
+  /* uv_thread_self isn't defined for the main thread on Windows */
+  threads[0] = GetCurrentThread();
+#else
+  threads[0] = uv_thread_self();
+#endif
+  cpumasksize = uv_cpumask_size();
+  ASSERT(cpumasksize > 0);
+
+  cpumask = calloc(4 * cpumasksize, 1);
+  ASSERT(cpumask);
+
+  r = uv_thread_getaffinity(&threads[0], cpumask, cpumasksize);
+  ASSERT(r == 0);
+  ASSERT(cpumask[0] && "test must be run with cpu 0 affinity");
+  ncpus = 0;
+  while (cpumask[++ncpus]) { }
+  memset(cpumask, 0, 4 * cpumasksize);
+
+  t1first = cpumasksize * 0;
+  t1second = cpumasksize * 1;
+  t2first = cpumasksize * 2;
+  t2second = cpumasksize * 3;
+
+  cpumask[t1second + 0] = 1;
+  cpumask[t2first + 0] = 1;
+  cpumask[t1first + (ncpus >= 2)] = 1;
+  cpumask[t2second + (ncpus >= 2)] = 1;
+#ifdef __linux__
+  cpumask[t1second + 2] = 1;
+  cpumask[t2first + 2] = 1;
+  cpumask[t1first + 3] = 1;
+  cpumask[t2second + 3] = 1;
+#else
+  if (ncpus >= 3) {
+    cpumask[t1second + 2] = 1;
+    cpumask[t2first + 2] = 1;
+  }
+  if (ncpus >= 4) {
+    cpumask[t1first + 3] = 1;
+    cpumask[t2second + 3] = 1;
+  }
+#endif
+
+  ASSERT(0 == uv_thread_create(threads + 1,
+                               check_affinity,
+                               &cpumask[t1first]));
+  ASSERT(0 == uv_thread_create(threads + 2,
+                               check_affinity,
+                               &cpumask[t2first]));
+  ASSERT(0 == uv_thread_join(threads + 1));
+  ASSERT(0 == uv_thread_join(threads + 2));
+
+  ASSERT(cpumask[t1first + 0] == (ncpus == 1));
+  ASSERT(cpumask[t1first + 1] == (ncpus >= 2));
+  ASSERT(cpumask[t1first + 2] == 0);
+  ASSERT(cpumask[t1first + 3] == (ncpus >= 4));
+
+  ASSERT(cpumask[t2first + 0] == 1);
+  ASSERT(cpumask[t2first + 1] == 0);
+  ASSERT(cpumask[t2first + 2] == (ncpus >= 3));
+  ASSERT(cpumask[t2first + 3] == 0);
+
+  c = uv_thread_getcpu();
+  ASSERT_GE(c, 0);
+
+  memset(cpumask, 0, cpumasksize);
+  cpumask[c] = 1;
+  r = uv_thread_setaffinity(&threads[0], cpumask, NULL, cpumasksize);
+  ASSERT_EQ(r, 0);
+
+  memset(cpumask, 0, cpumasksize);
+  r = uv_thread_getaffinity(&threads[0], cpumask, cpumasksize);
+  ASSERT_EQ(r, 0);
+  for (i = 0; i < cpumasksize; i++) {
+    if (i == c)
+      ASSERT_EQ(1, cpumask[i]);
+    else
+      ASSERT_EQ(0, cpumask[i]);
+  }
+
+  free(cpumask);
+
+  return 0;
+}
+
+#else
+
+TEST_IMPL(thread_affinity) {
+  int cpumasksize;
+  cpumasksize = uv_cpumask_size();
+  ASSERT(cpumasksize == UV_ENOTSUP);
+  return 0;
+}
+
+#endif