DevinLeamy commented on code in PR #501:
URL: https://github.com/apache/mesos/pull/501#discussion_r1518185616
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src/linux/ebpf.cpp:
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@@ -14,4 +14,126 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-#include "linux/ebpf.hpp"
\ No newline at end of file
+#include "linux/ebpf.hpp"
+
+#include <linux/bpf.h>
+#include <sys/syscall.h>
+
+#include <string>
+#include <vector>
+
+#include "stout/error.hpp"
+#include "stout/try.hpp"
+
+using std::string;
+using std::vector;
+
+namespace ebpf {
+
+#define syscall_bpf(cmd, attr, size) (int) syscall(__NR_bpf, cmd, attr, size);
+
+// Wrapper around the BPF syscall.
+Try<int> bpf(int cmd, bpf_attr* attr, size_t size)
+{
+ int result = syscall_bpf(cmd, attr, size);
+ if (result == -1) {
+ ErrnoError error;
+ return Error("BPF syscall failed with error '" + error.message + "'");
Review Comment:
Make sense.
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