Index: uspace/lib/c/include/async.h
===================================================================
--- uspace/lib/c/include/async.h	(revision 12d77106be9d0f1eed699d9bb16b4d8fae4b4348)
+++ uspace/lib/c/include/async.h	(revision 12d77106be9d0f1eed699d9bb16b4d8fae4b4348)
@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 2006 Ondrej Palkovsky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_ASYNC_H_
+#define LIBC_ASYNC_H_
+
+#include <ipc/ipc.h>
+#include <fibril.h>
+#include <sys/time.h>
+#include <atomic.h>
+#include <bool.h>
+
+typedef ipc_callid_t aid_t;
+typedef void (*async_client_conn_t)(ipc_callid_t callid, ipc_call_t *call);
+
+extern atomic_t async_futex;
+
+extern atomic_t threads_in_ipc_wait;
+
+extern int __async_init(void);
+extern ipc_callid_t async_get_call_timeout(ipc_call_t *call, suseconds_t usecs);
+
+static inline ipc_callid_t async_get_call(ipc_call_t *data)
+{
+	return async_get_call_timeout(data, 0);
+}
+
+static inline void async_manager(void)
+{
+	fibril_switch(FIBRIL_TO_MANAGER);
+}
+
+/*
+ * User-friendly wrappers for async_send_fast() and async_send_slow(). The
+ * macros are in the form async_send_m(), where m denotes the number of payload
+ * arguments.  Each macros chooses between the fast and the slow version based
+ * on m.
+ */
+
+#define async_send_0(phoneid, method, dataptr) \
+	async_send_fast((phoneid), (method), 0, 0, 0, 0, (dataptr))
+#define async_send_1(phoneid, method, arg1, dataptr) \
+	async_send_fast((phoneid), (method), (arg1), 0, 0, 0, (dataptr))
+#define async_send_2(phoneid, method, arg1, arg2, dataptr) \
+	async_send_fast((phoneid), (method), (arg1), (arg2), 0, 0, (dataptr))
+#define async_send_3(phoneid, method, arg1, arg2, arg3, dataptr) \
+	async_send_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (dataptr))
+#define async_send_4(phoneid, method, arg1, arg2, arg3, arg4, dataptr) \
+	async_send_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (dataptr))
+#define async_send_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, dataptr) \
+	async_send_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (dataptr))
+
+extern aid_t async_send_fast(int phoneid, ipcarg_t method, ipcarg_t arg1,
+    ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipc_call_t *dataptr);
+extern aid_t async_send_slow(int phoneid, ipcarg_t method, ipcarg_t arg1,
+    ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5,
+    ipc_call_t *dataptr);
+extern void async_wait_for(aid_t amsgid, ipcarg_t *result);
+extern int async_wait_timeout(aid_t amsgid, ipcarg_t *retval,
+    suseconds_t timeout);
+
+extern fid_t async_new_connection(ipcarg_t in_phone_hash, ipc_callid_t callid,
+    ipc_call_t *call, void (*cthread)(ipc_callid_t, ipc_call_t *));
+extern void async_usleep(suseconds_t timeout);
+extern void async_create_manager(void);
+extern void async_destroy_manager(void);
+
+extern void async_set_client_connection(async_client_conn_t conn);
+extern void async_set_interrupt_received(async_client_conn_t conn);
+
+/* Wrappers for simple communication */
+#define async_msg_0(phone, method) \
+	ipc_call_async_0((phone), (method), NULL, NULL, true)
+#define async_msg_1(phone, method, arg1) \
+	ipc_call_async_1((phone), (method), (arg1), NULL, NULL, \
+	    true)
+#define async_msg_2(phone, method, arg1, arg2) \
+	ipc_call_async_2((phone), (method), (arg1), (arg2), NULL, NULL, \
+	    true)
+#define async_msg_3(phone, method, arg1, arg2, arg3) \
+	ipc_call_async_3((phone), (method), (arg1), (arg2), (arg3), NULL, NULL, \
+	    true)
+#define async_msg_4(phone, method, arg1, arg2, arg3, arg4) \
+	ipc_call_async_4((phone), (method), (arg1), (arg2), (arg3), (arg4), NULL, \
+	    NULL, true)
+#define async_msg_5(phone, method, arg1, arg2, arg3, arg4, arg5) \
+	ipc_call_async_5((phone), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), NULL, NULL, true)
+
+/*
+ * User-friendly wrappers for async_req_fast() and async_req_slow(). The macros
+ * are in the form async_req_m_n(), where m is the number of payload arguments
+ * and n is the number of return arguments. The macros decide between the fast
+ * and slow verion based on m.
+ */
+#define async_req_0_0(phoneid, method) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, NULL, NULL, NULL, NULL, \
+	    NULL)
+#define async_req_0_1(phoneid, method, r1) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, (r1), NULL, NULL, NULL, \
+	    NULL)
+#define async_req_0_2(phoneid, method, r1, r2) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, (r1), (r2), NULL, NULL, \
+	    NULL)
+#define async_req_0_3(phoneid, method, r1, r2, r3) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, (r1), (r2), (r3), NULL, \
+	    NULL)
+#define async_req_0_4(phoneid, method, r1, r2, r3, r4) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, (r1), (r2), (r3), (r4), \
+	    NULL)
+#define async_req_0_5(phoneid, method, r1, r2, r3, r4, r5) \
+	async_req_fast((phoneid), (method), 0, 0, 0, 0, (r1), (r2), (r3), (r4), \
+	    (r5))
+#define async_req_1_0(phoneid, method, arg1) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, NULL, NULL, NULL, \
+	    NULL, NULL)
+#define async_req_1_1(phoneid, method, arg1, rc1) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, (rc1), NULL, NULL, \
+	    NULL, NULL)
+#define async_req_1_2(phoneid, method, arg1, rc1, rc2) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, (rc1), (rc2), NULL, \
+	    NULL, NULL)
+#define async_req_1_3(phoneid, method, arg1, rc1, rc2, rc3) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, (rc1), (rc2), (rc3), \
+	    NULL, NULL)
+#define async_req_1_4(phoneid, method, arg1, rc1, rc2, rc3, rc4) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, (rc1), (rc2), (rc3), \
+	    (rc4), NULL)
+#define async_req_1_5(phoneid, method, arg1, rc1, rc2, rc3, rc4, rc5) \
+	async_req_fast((phoneid), (method), (arg1), 0, 0, 0, (rc1), (rc2), (rc3), \
+	    (rc4), (rc5))
+#define async_req_2_0(phoneid, method, arg1, arg2) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, NULL, NULL, \
+	    NULL, NULL, NULL)
+#define async_req_2_1(phoneid, method, arg1, arg2, rc1) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, (rc1), NULL, \
+	    NULL, NULL, NULL)
+#define async_req_2_2(phoneid, method, arg1, arg2, rc1, rc2) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, (rc1), (rc2), \
+	    NULL, NULL, NULL)
+#define async_req_2_3(phoneid, method, arg1, arg2, rc1, rc2, rc3) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, (rc1), (rc2), \
+	    (rc3), NULL, NULL)
+#define async_req_2_4(phoneid, method, arg1, arg2, rc1, rc2, rc3, rc4) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, (rc1), (rc2), \
+	    (rc3), (rc4), NULL)
+#define async_req_2_5(phoneid, method, arg1, arg2, rc1, rc2, rc3, rc4, rc5) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), 0, 0, (rc1), (rc2), \
+	    (rc3), (rc4), (rc5))
+#define async_req_3_0(phoneid, method, arg1, arg2, arg3) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, NULL, NULL, \
+	    NULL, NULL, NULL)
+#define async_req_3_1(phoneid, method, arg1, arg2, arg3, rc1) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (rc1), \
+	    NULL, NULL, NULL, NULL)
+#define async_req_3_2(phoneid, method, arg1, arg2, arg3, rc1, rc2) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (rc1), \
+	    (rc2), NULL, NULL, NULL)
+#define async_req_3_3(phoneid, method, arg1, arg2, arg3, rc1, rc2, rc3) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (rc1), \
+	    (rc2), (rc3), NULL, NULL)
+#define async_req_3_4(phoneid, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (rc1), \
+	    (rc2), (rc3), (rc4), NULL)
+#define async_req_3_5(phoneid, method, arg1, arg2, arg3, rc1, rc2, rc3, rc4, \
+    rc5) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, (rc1), \
+	    (rc2), (rc3), (rc4), (rc5))
+#define async_req_4_0(phoneid, method, arg1, arg2, arg3, arg4) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), NULL, \
+	    NULL, NULL, NULL, NULL)
+#define async_req_4_1(phoneid, method, arg1, arg2, arg3, arg4, rc1) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), (rc1), \
+	    NULL, NULL, NULL, NULL)
+#define async_req_4_2(phoneid, method, arg1, arg2, arg3, arg4, rc1, rc2) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), (rc1), \
+	    (rc2), NULL, NULL, NULL)
+#define async_req_4_3(phoneid, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), (rc1), \
+	    (rc2), (rc3), NULL, NULL)
+#define async_req_4_4(phoneid, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
+    rc4) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (rc1), (rc2), (rc3), (rc4), NULL)
+#define async_req_4_5(phoneid, method, arg1, arg2, arg3, arg4, rc1, rc2, rc3, \
+    rc4, rc5) \
+	async_req_fast((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (rc1), (rc2), (rc3), (rc4), (rc5))
+#define async_req_5_0(phoneid, method, arg1, arg2, arg3, arg4, arg5) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), NULL, NULL, NULL, NULL, NULL)
+#define async_req_5_1(phoneid, method, arg1, arg2, arg3, arg4, arg5, rc1) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (rc1), NULL, NULL, NULL, NULL)
+#define async_req_5_2(phoneid, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (rc1), (rc2), NULL, NULL, NULL)
+#define async_req_5_3(phoneid, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
+    rc3) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (rc1), (rc2), (rc3), NULL, NULL)
+#define async_req_5_4(phoneid, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
+    rc3, rc4) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (rc1), (rc2), (rc3), (rc4), NULL)
+#define async_req_5_5(phoneid, method, arg1, arg2, arg3, arg4, arg5, rc1, rc2, \
+    rc3, rc4, rc5) \
+	async_req_slow((phoneid), (method), (arg1), (arg2), (arg3), (arg4), \
+	    (arg5), (rc1), (rc2), (rc3), (rc4), (rc5))
+
+extern ipcarg_t async_req_fast(int phoneid, ipcarg_t method, ipcarg_t arg1,
+    ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t *r1, ipcarg_t *r2,
+    ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5);
+extern ipcarg_t async_req_slow(int phoneid, ipcarg_t method, ipcarg_t arg1,
+    ipcarg_t arg2, ipcarg_t arg3, ipcarg_t arg4, ipcarg_t arg5, ipcarg_t *r1,
+    ipcarg_t *r2, ipcarg_t *r3, ipcarg_t *r4, ipcarg_t *r5);
+
+static inline void async_serialize_start(void)
+{
+	fibril_inc_sercount();
+}
+
+static inline void async_serialize_end(void)
+{
+	fibril_dec_sercount();
+}
+
+extern int async_connect_me_to(int, ipcarg_t, ipcarg_t, ipcarg_t);
+extern int async_connect_me_to_blocking(int, ipcarg_t, ipcarg_t, ipcarg_t);
+
+/*
+ * User-friendly wrappers for async_share_in_start().
+ */
+#define async_share_in_start_0_0(phoneid, dst, size) \
+	async_share_in_start((phoneid), (dst), (size), 0, NULL)
+#define async_share_in_start_0_1(phoneid, dst, size, flags) \
+	async_share_in_start((phoneid), (dst), (size), 0, (flags))
+#define async_share_in_start_1_0(phoneid, dst, size, arg) \
+	async_share_in_start((phoneid), (dst), (size), (arg), NULL)
+#define async_share_in_start_1_1(phoneid, dst, size, arg, flags) \
+	async_share_in_start((phoneid), (dst), (size), (arg), (flags))
+
+extern int async_share_in_start(int, void *, size_t, ipcarg_t, int *);
+extern int async_share_in_receive(ipc_callid_t *, size_t *);
+extern int async_share_in_finalize(ipc_callid_t, void *, int );
+extern int async_share_out_start(int, void *, int);
+extern int async_share_out_receive(ipc_callid_t *, size_t *, int *);
+extern int async_share_out_finalize(ipc_callid_t, void *);
+
+/*
+ * User-friendly wrappers for async_data_read_forward_fast().
+ */
+#define async_data_read_forward_0_0(phoneid, method, answer) \
+	async_data_read_forward_fast((phoneid), (method), 0, 0, 0, 0, NULL)
+#define async_data_read_forward_0_1(phoneid, method, answer) \
+	async_data_read_forward_fast((phoneid), (method), 0, 0, 0, 0, (answer))
+#define async_data_read_forward_1_0(phoneid, method, arg1, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), 0, 0, 0, NULL)
+#define async_data_read_forward_1_1(phoneid, method, arg1, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), 0, 0, 0, (answer))
+#define async_data_read_forward_2_0(phoneid, method, arg1, arg2, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), 0, 0, NULL)
+#define async_data_read_forward_2_1(phoneid, method, arg1, arg2, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), 0, 0, \
+	    (answer))
+#define async_data_read_forward_3_0(phoneid, method, arg1, arg2, arg3, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, \
+	    NULL)
+#define async_data_read_forward_3_1(phoneid, method, arg1, arg2, arg3, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), 0, \
+	    (answer))
+#define async_data_read_forward_4_0(phoneid, method, arg1, arg2, arg3, arg4, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    (arg4), NULL)
+#define async_data_read_forward_4_1(phoneid, method, arg1, arg2, arg3, arg4, answer) \
+	async_data_read_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    (arg4), (answer))
+
+extern int async_data_read_start(int, void *, size_t);
+extern int async_data_read_receive(ipc_callid_t *, size_t *);
+extern int async_data_read_finalize(ipc_callid_t, const void *, size_t);
+
+extern int async_data_read_forward_fast(int, ipcarg_t, ipcarg_t, ipcarg_t,
+    ipcarg_t, ipcarg_t, ipc_call_t *);
+
+/*
+ * User-friendly wrappers for async_data_write_forward_fast().
+ */
+#define async_data_write_forward_0_0(phoneid, method, answer) \
+	async_data_write_forward_fast((phoneid), (method), 0, 0, 0, 0, NULL)
+#define async_data_write_forward_0_1(phoneid, method, answer) \
+	async_data_write_forward_fast((phoneid), (method), 0, 0, 0, 0, (answer))
+#define async_data_write_forward_1_0(phoneid, method, arg1, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), 0, 0, 0, NULL)
+#define async_data_write_forward_1_1(phoneid, method, arg1, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), 0, 0, 0, \
+	    (answer))
+#define async_data_write_forward_2_0(phoneid, method, arg1, arg2, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), 0, 0, \
+	    NULL)
+#define async_data_write_forward_2_1(phoneid, method, arg1, arg2, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), 0, 0, \
+	    (answer))
+#define async_data_write_forward_3_0(phoneid, method, arg1, arg2, arg3, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    0, NULL)
+#define async_data_write_forward_3_1(phoneid, method, arg1, arg2, arg3, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    0, (answer))
+#define async_data_write_forward_4_0(phoneid, method, arg1, arg2, arg3, arg4, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    (arg4), NULL)
+#define async_data_write_forward_4_1(phoneid, method, arg1, arg2, arg3, arg4, answer) \
+	async_data_write_forward_fast((phoneid), (method), (arg1), (arg2), (arg3), \
+	    (arg4), (answer))
+
+extern int async_data_write_start(int, const void *, size_t);
+extern int async_data_write_receive(ipc_callid_t *, size_t *);
+extern int async_data_write_finalize(ipc_callid_t, void *, size_t);
+
+extern int async_data_write_accept(void **, const bool, const size_t,
+    const size_t, const size_t, size_t *);
+extern void async_data_write_void(const int);
+
+extern int async_data_write_forward_fast(int, ipcarg_t, ipcarg_t, ipcarg_t,
+    ipcarg_t, ipcarg_t, ipc_call_t *);
+
+#endif
+
+/** @}
+ */
