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Diffstat (limited to 'storage/mroonga/vendor/groonga/vendor/nginx-1.7.4/src/os/unix/ngx_setaffinity.c')
-rw-r--r--storage/mroonga/vendor/groonga/vendor/nginx-1.7.4/src/os/unix/ngx_setaffinity.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/storage/mroonga/vendor/groonga/vendor/nginx-1.7.4/src/os/unix/ngx_setaffinity.c b/storage/mroonga/vendor/groonga/vendor/nginx-1.7.4/src/os/unix/ngx_setaffinity.c
new file mode 100644
index 00000000000..8f6cf35948a
--- /dev/null
+++ b/storage/mroonga/vendor/groonga/vendor/nginx-1.7.4/src/os/unix/ngx_setaffinity.c
@@ -0,0 +1,69 @@
+
+/*
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+#if (NGX_HAVE_CPUSET_SETAFFINITY)
+
+#include <sys/cpuset.h>
+
+void
+ngx_setaffinity(uint64_t cpu_affinity, ngx_log_t *log)
+{
+ cpuset_t mask;
+ ngx_uint_t i;
+
+ ngx_log_error(NGX_LOG_NOTICE, log, 0,
+ "cpuset_setaffinity(0x%08Xl)", cpu_affinity);
+
+ CPU_ZERO(&mask);
+ i = 0;
+ do {
+ if (cpu_affinity & 1) {
+ CPU_SET(i, &mask);
+ }
+ i++;
+ cpu_affinity >>= 1;
+ } while (cpu_affinity);
+
+ if (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1,
+ sizeof(cpuset_t), &mask) == -1)
+ {
+ ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
+ "cpuset_setaffinity() failed");
+ }
+}
+
+#elif (NGX_HAVE_SCHED_SETAFFINITY)
+
+void
+ngx_setaffinity(uint64_t cpu_affinity, ngx_log_t *log)
+{
+ cpu_set_t mask;
+ ngx_uint_t i;
+
+ ngx_log_error(NGX_LOG_NOTICE, log, 0,
+ "sched_setaffinity(0x%08Xl)", cpu_affinity);
+
+ CPU_ZERO(&mask);
+ i = 0;
+ do {
+ if (cpu_affinity & 1) {
+ CPU_SET(i, &mask);
+ }
+ i++;
+ cpu_affinity >>= 1;
+ } while (cpu_affinity);
+
+ if (sched_setaffinity(0, sizeof(cpu_set_t), &mask) == -1) {
+ ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
+ "sched_setaffinity() failed");
+ }
+}
+
+#endif