Add a bunch of C header samples for the Bayesian classifier

samples/C/scheduler.h

@@ -0,0 +1,69 @@
+#pragma once
+
+/* Copyright © 2011 Lukas Martini
+ *
+ * This file is part of Xelix.
+ *
+ * Xelix is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Xelix 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Xelix. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <lib/generic.h>
+#include <hw/cpu.h>
+#include <memory/vmem.h>
+
+#define SCHEDULER_MAXNAME 256
+#define SCHEDULER_TASK_PATH_MAX 256
+
+// Single linked list
+typedef struct task {
+	uint32_t pid;
+	char name[SCHEDULER_MAXNAME];
+	struct task *parent;
+	cpu_state_t* state;
+	struct task* next;
+	struct task* previous;
+
+	void* stack;
+	void* entry;
+	struct vmem_context *memory_context;
+
+	// Current task state
+	enum {
+		TASK_STATE_KILLED,
+		TASK_STATE_TERMINATED,
+		TASK_STATE_BLOCKING,
+		TASK_STATE_STOPPED,
+		TASK_STATE_RUNNING
+	} task_state;
+
+	char** environ;
+	char** argv;
+	int argc;
+
+	// TODO Is this actually the same as PATH_MAX in our toolchain?
+	char cwd[SCHEDULER_TASK_PATH_MAX + 1];
+} task_t;
+
+int scheduler_state;
+
+task_t* scheduler_new(void* entry, task_t* parent, char name[SCHEDULER_MAXNAME],
+	char** environ, char** argv, int argc, struct vmem_context* memory_context, bool map_structs);
+void scheduler_add(task_t *task);
+void scheduler_terminate_current();
+task_t* scheduler_get_current();
+task_t* scheduler_select(cpu_state_t* lastRegs);
+void scheduler_init();
+void scheduler_yield();
+void scheduler_remove(task_t *t);
+task_t* scheduler_fork(task_t* to_fork, cpu_state_t* state);