1 files changed, 126 insertions, 0 deletions
diff --git a/test/core/util/subprocess_windows.cc b/test/core/util/subprocess_windows.cc
new file mode 100644
index 0000000000..d3295244ea
--- /dev/null
+++ b/test/core/util/subprocess_windows.cc
@@ -0,0 +1,126 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * 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 <grpc/support/port_platform.h>
+
+#ifdef GPR_WINDOWS_SUBPROCESS
+
+#include <string.h>
+#include <tchar.h>
+#include <windows.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include "src/core/lib/gpr/string.h"
+#include "src/core/lib/gpr/string_windows.h"
+#include "test/core/util/subprocess.h"
+
+struct gpr_subprocess {
+  PROCESS_INFORMATION pi;
+  int joined;
+  int interrupted;
+};
+
+const char* gpr_subprocess_binary_extension() { return ".exe"; }
+
+gpr_subprocess* gpr_subprocess_create(int argc, const char** argv) {
+  gpr_subprocess* r;
+
+  STARTUPINFO si;
+  PROCESS_INFORMATION pi;
+
+  char* args = gpr_strjoin_sep(argv, (size_t)argc, " ", NULL);
+  TCHAR* args_tchar;
+
+  args_tchar = gpr_char_to_tchar(args);
+  gpr_free(args);
+
+  memset(&si, 0, sizeof(si));
+  si.cb = sizeof(si);
+  memset(&pi, 0, sizeof(pi));
+
+  if (!CreateProcess(NULL, args_tchar, NULL, NULL, FALSE,
+                     CREATE_NEW_PROCESS_GROUP, NULL, NULL, &si, &pi)) {
+    gpr_free(args_tchar);
+    return NULL;
+  }
+  gpr_free(args_tchar);
+
+  r = (gpr_subprocess*)gpr_malloc(sizeof(gpr_subprocess));
+  memset(r, 0, sizeof(*r));
+  r->pi = pi;
+  return r;
+}
+
+void gpr_subprocess_destroy(gpr_subprocess* p) {
+  if (p) {
+    if (!p->joined) {
+      gpr_subprocess_interrupt(p);
+      gpr_subprocess_join(p);
+    }
+    if (p->pi.hProcess) {
+      CloseHandle(p->pi.hProcess);
+    }
+    if (p->pi.hThread) {
+      CloseHandle(p->pi.hThread);
+    }
+    gpr_free(p);
+  }
+}
+
+int gpr_subprocess_join(gpr_subprocess* p) {
+  DWORD dwExitCode;
+  if (GetExitCodeProcess(p->pi.hProcess, &dwExitCode)) {
+    if (dwExitCode == STILL_ACTIVE) {
+      if (WaitForSingleObject(p->pi.hProcess, INFINITE) == WAIT_OBJECT_0) {
+        p->joined = 1;
+        goto getExitCode;
+      }
+      return -1;  // failed to join
+    } else {
+      goto getExitCode;
+    }
+  } else {
+    return -1;  // failed to get exit code
+  }
+
+getExitCode:
+  if (p->interrupted) {
+    return 0;
+  }
+  if (GetExitCodeProcess(p->pi.hProcess, &dwExitCode)) {
+    return (int)dwExitCode;
+  } else {
+    return -1;  // failed to get exit code
+  }
+}
+
+void gpr_subprocess_interrupt(gpr_subprocess* p) {
+  DWORD dwExitCode;
+  if (GetExitCodeProcess(p->pi.hProcess, &dwExitCode)) {
+    if (dwExitCode == STILL_ACTIVE) {
+      gpr_log(GPR_INFO, "sending ctrl-break");
+      GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, p->pi.dwProcessId);
+      p->joined = 1;
+      p->interrupted = 1;
+    }
+  }
+  return;
+}
+
+#endif /* GPR_WINDOWS_SUBPROCESS */