Revert "Make libbcc public."
This reverts commit 80232dd16c0affb2afae01cde6c94abf23ac1ba8.
diff --git a/lib/ExecutionEngine/OutputFile.cpp b/lib/ExecutionEngine/OutputFile.cpp
new file mode 100644
index 0000000..6200617
--- /dev/null
+++ b/lib/ExecutionEngine/OutputFile.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2012, 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.
+ */
+
+#include "OutputFile.h"
+
+#include <cstdlib>
+
+#include <llvm/Support/raw_ostream.h>
+
+#include "DebugHelper.h"
+
+using namespace bcc;
+
+OutputFile *OutputFile::CreateTemporary(const std::string &pFileTemplate,
+ unsigned pFlags) {
+ char *tmp_filename = NULL;
+ int tmp_fd;
+ OutputFile *result = NULL;
+
+ // Allocate memory to hold the generated unique temporary filename.
+ tmp_filename =
+ new (std::nothrow) char [ pFileTemplate.length() + /* .XXXXXX */7 + 1 ];
+ if (tmp_filename == NULL) {
+ ALOGE("Out of memory when allocates memory for filename %s in "
+ "OutputFile::CreateTemporary()!", pFileTemplate.c_str());
+ return NULL;
+ }
+
+ // Construct filename template for mkstemp().
+ if (pFileTemplate.length() > 0)
+ ::memcpy(tmp_filename, pFileTemplate.c_str(), pFileTemplate.length());
+ ::strncpy(tmp_filename + pFileTemplate.length(), ".XXXXXX", 7);
+
+ // POSIX mkstemp() never returns EINTR.
+ tmp_fd = ::mkstemp(tmp_filename);
+ if (tmp_fd < 0) {
+ llvm::error_code err(errno, llvm::posix_category());
+ ALOGE("Failed to create temporary file using mkstemp() for %s! (%s)",
+ tmp_filename, err.message().c_str());
+ delete [] tmp_filename;
+ return NULL;
+ }
+
+ // Create result OutputFile.
+ result = new (std::nothrow) OutputFile(tmp_filename, pFlags);
+ if (result == NULL) {
+ ALOGE("Out of memory when creates OutputFile for %s!", tmp_filename);
+ // Fall through to the clean-up codes.
+ } else {
+ if (result->hasError()) {
+ ALOGE("Failed to open temporary output file %s! (%s)",
+ result->getName().c_str(), result->getErrorMessage().c_str());
+ delete result;
+ result = NULL;
+ // Fall through to the clean-up codes.
+ }
+ }
+
+ // Clean up.
+ delete [] tmp_filename;
+ ::close(tmp_fd);
+
+ return result;
+}
+
+OutputFile::OutputFile(const std::string &pFilename, unsigned pFlags)
+ : super(pFilename, pFlags) { }
+
+ssize_t OutputFile::write(const void *pBuf, size_t count) {
+ if ((mFD < 0) || hasError()) {
+ return -1;
+ }
+
+ if ((count <= 0) || (pBuf == NULL)) {
+ // Keep safe and issue a warning.
+ ALOGW("OutputFile::write: count = %zu, buffer = %p", count, pBuf);
+ return 0;
+ }
+
+ while (count > 0) {
+ ssize_t write_size = ::write(mFD, pBuf, count);
+
+ if (write_size > 0) {
+ return write_size;
+ } else if ((errno == EAGAIN) || (errno == EINTR)) {
+ // If the errno is EAGAIN or EINTR, then we try to write again.
+ //
+ // Fall-through
+ } else {
+ detectError();
+ return -1;
+ }
+ }
+ // unreachable
+ return 0;
+}
+
+void OutputFile::truncate() {
+ if (mFD < 0) {
+ return;
+ }
+
+ do {
+ if (::ftruncate(mFD, 0) == 0) {
+ return;
+ }
+ } while (errno == EINTR);
+ detectError();
+
+ return;
+}
+
+llvm::raw_fd_ostream *OutputFile::dup() {
+ int newfd;
+
+ do {
+ newfd = ::dup(mFD);
+ if (newfd < 0) {
+ if (errno != EINTR) {
+ detectError();
+ return NULL;
+ }
+ // EINTR
+ continue;
+ }
+ // dup() returns ok.
+ break;
+ } while (true);
+
+ llvm::raw_fd_ostream *result =
+ new (std::nothrow) llvm::raw_fd_ostream(newfd, /* shouldClose */true);
+
+ if (result == NULL) {
+ mError.assign(llvm::errc::not_enough_memory, llvm::system_category());
+ }
+
+ return result;
+}