lua+js: Implement utils.getpid()

Usable for uniquely identifying mpv instances from
subprocesses, controlling mpv with AppleScript, ...

Adds a new mp_getpid() wrapper for cross-platform reasons.

1 files changed, 29 insertions, 0 deletions

diff --git a/osdep/getpid.h b/osdep/getpid.h
new file mode 100644
index 0000000000..ace5e292b6
--- /dev/null
+++ b/osdep/getpid.h
@@ -0,0 +1,29 @@
+/*
+ * getpid wrapper
+ *
+ * This file is part of mpv.
+ *
+ * mpv is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * mpv is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef _WIN32
+#include <windows.h>
+#define mp_getpid() GetCurrentProcessId()
+#else // POSIX
+#include <sys/types.h>
+#include <unistd.h>
+#define mp_getpid() getpid()
+#endif