deps: upgrade libuv to 1.7.5

PR-URL: https://github.com/nodejs/node/pull/3010
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

3 files changed, 34 insertions, 14 deletions

diff --git a/deps/uv/src/unix/atomic-ops.h b/deps/uv/src/unix/atomic-ops.h
index 7e4e64beda..8fb157dcc6 100644
--- a/deps/uv/src/unix/atomic-ops.h
+++ b/deps/uv/src/unix/atomic-ops.h
@@ -33,6 +33,10 @@ UV_UNUSED(static int cmpxchgi(int* ptr, int oldval, int newval)) {
                         : "r" (newval), "0" (oldval)
                         : "memory");
   return out;
+#elif defined(_AIX) && defined(__xlC__)
+  const int out = (*(volatile int*) ptr);
+  __compare_and_swap(ptr, &oldval, newval);
+  return out;
 #else
   return __sync_val_compare_and_swap(ptr, oldval, newval);
 #endif
@@ -46,6 +50,14 @@ UV_UNUSED(static long cmpxchgl(long* ptr, long oldval, long newval)) {
                         : "r" (newval), "0" (oldval)
                         : "memory");
   return out;
+#elif defined(_AIX) && defined(__xlC__)
+  const long out = (*(volatile int*) ptr);
+# if defined(__64BIT__)
+  __compare_and_swaplp(ptr, &oldval, newval);
+# else
+  __compare_and_swap(ptr, &oldval, newval);
+# endif /* if defined(__64BIT__) */
+  return out;
 #else
   return __sync_val_compare_and_swap(ptr, oldval, newval);
 #endif
diff --git a/deps/uv/src/unix/darwin.c b/deps/uv/src/unix/darwin.c
index 718a81e4c1..dab6ca999d 100644
--- a/deps/uv/src/unix/darwin.c
+++ b/deps/uv/src/unix/darwin.c
@@ -199,8 +199,10 @@ int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
   }
 
   *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
-  if (!(*cpu_infos))
-    return -ENOMEM;  /* FIXME(bnoordhuis) Deallocate info? */
+  if (!(*cpu_infos)) {
+    vm_deallocate(mach_task_self(), (vm_address_t)info, msg_type);
+    return -ENOMEM;
+  }
 
   *count = numcpus;
 
diff --git a/deps/uv/src/unix/thread.c b/deps/uv/src/unix/thread.c
index 6080cf5f73..c56a317025 100644
--- a/deps/uv/src/unix/thread.c
+++ b/deps/uv/src/unix/thread.c
@@ -124,14 +124,14 @@ void uv_mutex_lock(uv_mutex_t* mutex) {
 int uv_mutex_trylock(uv_mutex_t* mutex) {
   int err;
 
-  /* FIXME(bnoordhuis) EAGAIN means recursive lock limit reached. Arguably
-   * a bug, should probably abort rather than return -EAGAIN.
-   */
   err = pthread_mutex_trylock(mutex);
-  if (err && err != EBUSY && err != EAGAIN)
-    abort();
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return -EBUSY;
+  }
 
-  return -err;
+  return 0;
 }
 
 
@@ -162,10 +162,13 @@ int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock) {
   int err;
 
   err = pthread_rwlock_tryrdlock(rwlock);
-  if (err && err != EBUSY && err != EAGAIN)
-    abort();
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return -EBUSY;
+  }
 
-  return -err;
+  return 0;
 }
 
 
@@ -185,10 +188,13 @@ int uv_rwlock_trywrlock(uv_rwlock_t* rwlock) {
   int err;
 
   err = pthread_rwlock_trywrlock(rwlock);
-  if (err && err != EBUSY && err != EAGAIN)
-    abort();
+  if (err) {
+    if (err != EBUSY && err != EAGAIN)
+      abort();
+    return -EBUSY;
+  }
 
-  return -err;
+  return 0;
 }