Missed new files in last commit
Review URL: http://codereview.chromium.org/465067
git-svn-id: svn://chrome-svn/chromeos/trunk@336 06c00378-0e64-4dae-be16-12b19f9950a1
diff --git a/subprocess.cc b/subprocess.cc
new file mode 100644
index 0000000..299d758
--- /dev/null
+++ b/subprocess.cc
@@ -0,0 +1,108 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "update_engine/subprocess.h"
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <vector>
+#include "chromeos/obsolete_logging.h"
+#include "base/scoped_ptr.h"
+
+using std::string;
+using std::vector;
+
+namespace chromeos_update_engine {
+
+void Subprocess::GChildExitedCallback(GPid pid, gint status, gpointer data) {
+ COMPILE_ASSERT(sizeof(guint) == sizeof(uint32),
+ guint_uint32_size_mismatch);
+ guint *tag = reinterpret_cast<guint*>(data);
+ const SubprocessCallbackRecord& record = Get().callback_records_[*tag];
+ if (record.callback)
+ record.callback(status, record.callback_data);
+ g_spawn_close_pid(pid);
+ Get().callback_records_.erase(*tag);
+ delete tag;
+}
+
+namespace {
+void FreeArgv(char** argv) {
+ for (int i = 0; argv[i]; i++) {
+ free(argv[i]);
+ argv[i] = NULL;
+ }
+}
+} // namespace {}
+
+uint32 Subprocess::Exec(const std::vector<std::string>& cmd,
+ ExecCallback callback,
+ void *p) {
+ GPid child_pid;
+ GError *err;
+ scoped_array<char *> argv(new char*[cmd.size() + 1]);
+ for (unsigned int i = 0; i < cmd.size(); i++) {
+ argv[i] = strdup(cmd[i].c_str());
+ }
+ argv[cmd.size()] = NULL;
+ char *argp[1];
+ argp[0] = NULL;
+
+ SubprocessCallbackRecord callback_record;
+ callback_record.callback = callback;
+ callback_record.callback_data = p;
+
+ bool success = g_spawn_async(NULL, // working directory
+ argv.get(),
+ argp,
+ G_SPAWN_DO_NOT_REAP_CHILD, // flags
+ NULL, // child setup function
+ NULL, // child setup data pointer
+ &child_pid,
+ &err);
+ FreeArgv(argv.get());
+ if (!success) {
+ LOG(ERROR) << "g_spawn_async failed";
+ return 0;
+ }
+ guint *tag = new guint;
+ *tag = g_child_watch_add(child_pid, GChildExitedCallback, tag);
+ callback_records_[*tag] = callback_record;
+ return *tag;
+}
+
+void Subprocess::CancelExec(uint32 tag) {
+ if (callback_records_[tag].callback) {
+ callback_records_[tag].callback = NULL;
+ }
+}
+
+bool Subprocess::SynchronousExec(const std::vector<std::string>& cmd,
+ int* return_code) {
+ GError *err;
+ scoped_array<char *> argv(new char*[cmd.size() + 1]);
+ for (unsigned int i = 0; i < cmd.size(); i++) {
+ argv[i] = strdup(cmd[i].c_str());
+ }
+ argv[cmd.size()] = NULL;
+ char *argp[1];
+ argp[0] = NULL;
+
+ bool success = g_spawn_sync(NULL, // working directory
+ argv.get(),
+ argp,
+ static_cast<GSpawnFlags>(NULL), // flags
+ NULL, // child setup function
+ NULL, // data for child setup function
+ NULL, // return location for stdout
+ NULL, // return location for stderr
+ return_code,
+ &err);
+ FreeArgv(argv.get());
+ return success;
+}
+
+Subprocess* Subprocess::subprocess_singleton_ = NULL;
+
+} // namespace chromeos_update_engine