1 files changed, 46 insertions, 0 deletions
diff --git a/cmds/incidentd/src/io_util.cpp b/cmds/incidentd/src/io_util.cpp
new file mode 100644
index 000000000000..90f543e30ff7
--- /dev/null
+++ b/cmds/incidentd/src/io_util.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "incidentd"
+
+#include "io_util.h"
+
+#include <unistd.h>
+
+status_t write_all(int fd, uint8_t const* buf, size_t size)
+{
+    while (size > 0) {
+        ssize_t amt = TEMP_FAILURE_RETRY(::write(fd, buf, size));
+        if (amt < 0) {
+            return -errno;
+        }
+        size -= amt;
+        buf += amt;
+    }
+    return NO_ERROR;
+}
+
+Fpipe::Fpipe() {}
+
+Fpipe::~Fpipe() { close(); }
+
+bool Fpipe::close() { return !(::close(mFds[0]) || ::close(mFds[1])); }
+
+bool Fpipe::init() { return pipe(mFds) != -1; }
+
+int Fpipe::readFd() const { return mFds[0]; }
+
+int Fpipe::writeFd() const { return mFds[1]; }