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Diffstat (limited to 'third_party/nix/src/libutil/affinity.cc')
-rw-r--r--third_party/nix/src/libutil/affinity.cc48
1 files changed, 20 insertions, 28 deletions
diff --git a/third_party/nix/src/libutil/affinity.cc b/third_party/nix/src/libutil/affinity.cc
index 98f8287ada..faee4926d5 100644
--- a/third_party/nix/src/libutil/affinity.cc
+++ b/third_party/nix/src/libutil/affinity.cc
@@ -1,6 +1,6 @@
+#include "affinity.hh"
 #include "types.hh"
 #include "util.hh"
-#include "affinity.hh"
 
 #if __linux__
 #include <sched.h>
@@ -8,48 +8,40 @@
 
 namespace nix {
 
-
 #if __linux__
 static bool didSaveAffinity = false;
 static cpu_set_t savedAffinity;
 #endif
 
-
-void setAffinityTo(int cpu)
-{
+void setAffinityTo(int cpu) {
 #if __linux__
-    if (sched_getaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1) return;
-    didSaveAffinity = true;
-    debug(format("locking this thread to CPU %1%") % cpu);
-    cpu_set_t newAffinity;
-    CPU_ZERO(&newAffinity);
-    CPU_SET(cpu, &newAffinity);
-    if (sched_setaffinity(0, sizeof(cpu_set_t), &newAffinity) == -1)
-        printError(format("failed to lock thread to CPU %1%") % cpu);
+  if (sched_getaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1) return;
+  didSaveAffinity = true;
+  debug(format("locking this thread to CPU %1%") % cpu);
+  cpu_set_t newAffinity;
+  CPU_ZERO(&newAffinity);
+  CPU_SET(cpu, &newAffinity);
+  if (sched_setaffinity(0, sizeof(cpu_set_t), &newAffinity) == -1)
+    printError(format("failed to lock thread to CPU %1%") % cpu);
 #endif
 }
 
-
-int lockToCurrentCPU()
-{
+int lockToCurrentCPU() {
 #if __linux__
-    int cpu = sched_getcpu();
-    if (cpu != -1) setAffinityTo(cpu);
-    return cpu;
+  int cpu = sched_getcpu();
+  if (cpu != -1) setAffinityTo(cpu);
+  return cpu;
 #else
-    return -1;
+  return -1;
 #endif
 }
 
-
-void restoreAffinity()
-{
+void restoreAffinity() {
 #if __linux__
-    if (!didSaveAffinity) return;
-    if (sched_setaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1)
-        printError("failed to restore affinity %1%");
+  if (!didSaveAffinity) return;
+  if (sched_setaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1)
+    printError("failed to restore affinity %1%");
 #endif
 }
 
-
-}
+}  // namespace nix