X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Finclude%2Fcoredumpctl.h;fp=src%2Fceph%2Fsrc%2Finclude%2Fcoredumpctl.h;h=9b0f160e0a397850f7b3309b5a2cf9ebeeb4af94;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git

diff --git a/src/ceph/src/include/coredumpctl.h b/src/ceph/src/include/coredumpctl.h
new file mode 100644
index 0000000..9b0f160
--- /dev/null
+++ b/src/ceph/src/include/coredumpctl.h
@@ -0,0 +1,47 @@
+#pragma once
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <iostream>
+#include <sys/prctl.h>
+#include "common/errno.h"
+
+struct PrCtl {
+  int saved_state = -1;
+  int set_dumpable(int new_state) {
+    int r = prctl(PR_SET_DUMPABLE, new_state);
+    if (r) {
+      r = -errno;
+      std::cerr << "warning: unable to " << (new_state ? "set" : "unset")
+                << " dumpable flag: " << cpp_strerror(r)
+                << std::endl;
+    }
+    return r;
+  }
+  PrCtl(int new_state = 0) {
+    int r = prctl(PR_GET_DUMPABLE);
+    if (r == -1) {
+      r = errno;
+      std::cerr << "warning: unable to get dumpable flag: " << cpp_strerror(r)
+                << std::endl;
+    } else if (r != new_state) {
+      if (!set_dumpable(new_state)) {
+        saved_state = r;
+      }
+    }
+  }
+  ~PrCtl() {
+    if (saved_state < 0) {
+      return;
+    }
+    set_dumpable(saved_state);
+  }
+};
+
+#else
+
+struct PrCtl {
+  // to silence the Wunused-variable warning
+  PrCtl() {}
+};
+
+#endif