diff --git a/machinarium/machinarium.h b/machinarium/machinarium.h
new file mode 100644
index 00000000..6c0118f3
--- /dev/null
+++ b/machinarium/machinarium.h
@@ -0,0 +1,54 @@
+#ifndef MACHINARIUM_H_
+#define MACHINARIUM_H_
+
+/*
+ * machinarium.
+ *
+ * Cooperative multitasking engine.
+*/
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#if __GNUC__ >= 4
+#  define MM_API __attribute__((visibility("default")))
+#else
+#  define MM_API
+#endif
+
+typedef void (*mmfunction_t)(void *arg);
+
+typedef void* mm_t;
+typedef void* mmio_t;
+
+MM_API mm_t
+mm_new(void);
+
+MM_API int     mm_free(mm_t);
+MM_API int64_t mm_create(mm_t, mmfunction_t, void *arg);
+MM_API int     mm_is_online(mm_t);
+MM_API int     mm_is_cancel(mm_t);
+MM_API void    mm_start(mm_t);
+MM_API void    mm_stop(mm_t);
+MM_API void    mm_sleep(mm_t, uint64_t time_ms);
+MM_API int     mm_wait(mm_t, uint64_t id);
+MM_API int     mm_cancel(mm_t, uint64_t id);
+
+MM_API mmio_t
+mm_io_new(mm_t);
+
+MM_API void    mm_close(mmio_t);
+MM_API int     mm_fd(mmio_t);
+MM_API int     mm_is_connected(mmio_t);
+MM_API int     mm_connect(mmio_t, char *addr, int port, uint64_t time_ms);
+MM_API int     mm_connect_is_timeout(mmio_t);
+MM_API int     mm_bind(mmio_t, char *addr, int port);
+MM_API int     mm_accept(mmio_t, mmio_t *client);
+MM_API int     mm_read(mmio_t, int size, uint64_t time_ms);
+MM_API int     mm_read_is_timeout(mmio_t);
+MM_API char   *mm_read_buf(mmio_t);
+MM_API int     mm_write(mmio_t, char *buf, int size, uint64_t time_ms);
+MM_API int     mm_write_is_timeout(mmio_t);
+
+#endif
diff --git a/machinarium/machinarium_private.h b/machinarium/machinarium_private.h
new file mode 100644
index 00000000..6178c6c0
--- /dev/null
+++ b/machinarium/machinarium_private.h
@@ -0,0 +1,30 @@
+#ifndef MM_PRIVATE_H_
+#define MM_PRIVATE_H_
+
+/*
+ * machinarium.
+ *
+ * Cooperative multitasking engine.
+*/
+
+#define _GNU_SOURCE 1
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+
+#include <signal.h>
+#include <unistd.h>
+#include <ucontext.h>
+
+#include <uv.h>
+
+#include "mm_macro.h"
+#include "mm_list.h"
+#include "mm_buf.h"
+#include "mm_context.h"
+
+#endif
diff --git a/machinarium/makefile b/machinarium/makefile
new file mode 100644
index 00000000..405eb98c
--- /dev/null
+++ b/machinarium/makefile
@@ -0,0 +1,17 @@
+# libmachinarium makefile.
+#
+CC      = gcc
+AR      = ar
+RM      = rm
+CFLAGS  = -I. -Wall -g -O0 -pedantic
+OBJECTS = mm_context.o \
+          mm_fiber.o \
+          mm_scheduler.o \
+          mm.o
+LIB     = libmachinarium.a
+$(LIB): clean $(OBJECTS)
+	$(AR) cr $(LIB) $(OBJECTS)
+.c.o:
+	$(CC) $(CFLAGS) -c $<
+clean:
+	$(RM) -f $(OBJECTS) $(LIB)
diff --git a/machinarium/mm_list.h b/machinarium/mm_list.h
new file mode 100644
index 00000000..3863e4ab
--- /dev/null
+++ b/machinarium/mm_list.h
@@ -0,0 +1,61 @@
+#ifndef MM_LIST_H_
+#define MM_LIST_H_
+
+/*
+ * machinarium.
+ *
+ * Cooperative multitasking engine.
+*/
+
+typedef struct mmlist mmlist;
+
+struct mmlist {
+	mmlist *next, *prev;
+};
+
+static inline void
+mm_listinit(mmlist *h)
+{
+	h->next = h->prev = h;
+}
+
+static inline void
+mm_listappend(mmlist *h, mmlist *n)
+{
+	n->next = h;
+	n->prev = h->prev;
+	n->prev->next = n;
+	n->next->prev = n;
+}
+
+static inline void
+mm_listunlink(mmlist *n)
+{
+	n->prev->next = n->next;
+	n->next->prev = n->prev;
+}
+
+static inline void
+mm_listpush(mmlist *h, mmlist *n)
+{
+	n->next = h->next;
+	n->prev = h;
+	n->prev->next = n;
+	n->next->prev = n;
+}
+
+static inline mmlist*
+mm_listpop(mmlist *h)
+{
+	register mmlist *pop = h->next;
+	mm_listunlink(pop);
+	return pop;
+}
+
+#define mm_listforeach(H, I) \
+	for (I = (H)->next; I != H; I = (I)->next)
+
+#define mm_listforeach_safe(H, I, N) \
+	for (I = (H)->next; I != H && (N = I->next); I = N)
+
+#endif
diff --git a/machinarium/mm_macro.h b/machinarium/mm_macro.h
new file mode 100644
index 00000000..1f856d9b
--- /dev/null
+++ b/machinarium/mm_macro.h
@@ -0,0 +1,13 @@
+#ifndef MM_MACRO_H_
+#define MM_MACRO_H_
+
+/*
+ * machinarium.
+ *
+ * Cooperative multitasking engine.
+*/
+
+#define mm_container_of(ptr, t, f) \
+	((t*)((char*)(ptr) - __builtin_offsetof(t, f)))
+
+#endif