3 files changed, 113 insertions, 0 deletions
diff --git a/src/daemon/meson.build b/src/daemon/meson.build
index aa0aa75..d900949 100644
--- a/src/daemon/meson.build
+++ b/src/daemon/meson.build
@@ -3,8 +3,10 @@ d_filenames = [
 	'settings.c',
 	'net.c',
 	'purple.c',
+	'proto_stdio.c',
 	'settings_private.h',
 	'purple_private.h',
+	'proto_stdio_private.h',
 ]
 
 d_conf_filenames = [
diff --git a/src/daemon/proto_stdio.c b/src/daemon/proto_stdio.c
new file mode 100644
index 0000000..ee4af9a
--- /dev/null
+++ b/src/daemon/proto_stdio.c
@@ -0,0 +1,69 @@
+/*
+ * Usurpation – null (stdio) im proto
+ *
+ * Copyright (C) 2019 Gediminas Jakutis
+ *
+ * This program 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; version 2.1
+ * of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <errno.h>
+#include "proto_stdio.h"
+#include "proto_stdio_private.h"
+
+/* TODO: stub! */
+static void *read_stdin(void *arg)
+{
+	return arg;
+}
+
+/* TODO: stub! */
+static void *write_stdout(void *arg)
+{
+	return arg;
+}
+
+int proto_stdio_init(void)
+{
+
+	int ret = 0;
+
+	/* aquire the """singleton""" mutex */
+	if (pthread_mutex_trylock(&state.mutex)) {
+		/* TODO: use proper error numbers */
+		ret = 1;
+	} else {
+		if ((ret = pthread_create(&state.stdio_in, NULL, read_stdin, NULL))) {
+			proto_stdio_close();
+		}
+
+		if ((ret = pthread_create(&state.stdio_out, NULL, write_stdout, NULL))) {
+			proto_stdio_close();
+		}
+	}
+
+	return ret;
+}
+
+void proto_stdio_close(void)
+{
+	if (pthread_mutex_trylock(&state.mutex) == EBUSY) {
+		pthread_cancel(state.stdio_in);
+		pthread_cancel(state.stdio_out);
+		pthread_join(state.stdio_in, NULL);
+		pthread_join(state.stdio_out, NULL);
+	}
+
+	pthread_mutex_unlock(&state.mutex);
+}
diff --git a/src/daemon/proto_stdio_private.h b/src/daemon/proto_stdio_private.h
new file mode 100644
index 0000000..bed159b
--- /dev/null
+++ b/src/daemon/proto_stdio_private.h
@@ -0,0 +1,42 @@
+/*
+ * Usurpation – null (stdio) im proto
+ *
+ * Copyright (C) 2019 Gediminas Jakutis
+ *
+ * This program 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; version 2.1
+ * of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef USURPATION_PROTO_STDIO_PRIVATE_H
+#define USURPATION_PROTO_STDIO_PRIVATE_H
+
+#include <sys/types.h>
+#include <pthread.h>
+
+static struct state {
+	pthread_mutex_t mutex;
+	pthread_t stdio_in;
+	pthread_t stdio_out;
+	pthread_mutex_t in_m;
+	pthread_mutex_t out_m;
+	char *readbuf;
+	char *writebuf;
+	ssize_t readbufsize;
+	ssize_t writebufsize;
+} state = {PTHREAD_MUTEX_INITIALIZER, 0, 0, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, NULL, NULL, 0, 0};
+
+static void *read_stdin(void *arg);
+static void *write_stdout(void *arg);
+
+#endif /* USURPATION_PROTO_STDIO_PRIVATE_H */