1 files changed, 93 insertions, 0 deletions
diff --git a/tests/input/evdev/TestHelpers.cpp b/tests/input/evdev/TestHelpers.cpp
new file mode 100644
index 0000000..63b579e
--- /dev/null
+++ b/tests/input/evdev/TestHelpers.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2015 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 "TestHelpers"
+#define LOG_NDEBUG 0
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/Log.h>
+
+#include "TestHelpers.h"
+
+namespace android {
+
+static const char kTmpDirTemplate[] = "/data/local/tmp/XXXXXX";
+
+TempFile::TempFile(const char* path) {
+    bool needTrailingSlash = path[strlen(path) - 1] != '/';
+    // name = path + XXXXXX + \0
+    size_t nameLen = strlen(path) + 6 + 1;
+    if (needTrailingSlash) nameLen++;
+
+    mName = new char[nameLen];
+    strcpy(mName, path);
+    if (needTrailingSlash) {
+        strcat(mName, "/");
+    }
+    strcat(mName, "XXXXXX");
+    mName = mktemp(mName);
+    LOG_FATAL_IF(mName == nullptr, "could not create temp filename %s. errno=%d", mName, errno);
+
+    int result = TEMP_FAILURE_RETRY(mkfifo(mName, S_IRWXU));
+    LOG_FATAL_IF(result < 0, "could not create fifo %s. errno=%d", mName, errno);
+
+    mFd = TEMP_FAILURE_RETRY(open(mName, O_RDWR | O_NONBLOCK));
+    LOG_FATAL_IF(mFd < 0, "could not open fifo %s. errno=%d", mName, errno);
+}
+
+TempFile::~TempFile() {
+    if (unlink(mName) < 0) {
+        ALOGE("could not unlink %s. errno=%d", mName, errno);
+    }
+    if (close(mFd) < 0) {
+        ALOGE("could not close %d. errno=%d", mFd, errno);
+    }
+    delete[] mName;
+}
+
+TempDir::TempDir() {
+    mName = new char[sizeof(kTmpDirTemplate)];
+    strcpy(mName, kTmpDirTemplate);
+    mName = mkdtemp(mName);
+    LOG_FATAL_IF(mName == nullptr, "could not allocate tempdir %s", mName);
+}
+
+TempDir::~TempDir() {
+    auto tmpDir = opendir(mName);
+    while (auto entry = readdir(tmpDir)) {
+        if (strcmp(entry->d_name, ".") == 0 ||
+            strcmp(entry->d_name, "..") == 0) {
+            continue;
+        }
+        ALOGD("stale file %s, removing", entry->d_name);
+        unlink(entry->d_name);
+    }
+    closedir(tmpDir);
+    rmdir(mName);
+    delete mName;
+}
+
+TempFile* TempDir::newTempFile() {
+    return new TempFile(mName);
+}
+
+}  // namespace android