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 */
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 */
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#ifndef __IPC_H__
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#ifndef __IPC_H__
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#define __IPC_H__
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#define __IPC_H__
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/* Length of data being transfered with IPC call */
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/* - the uspace may not be able to utilize full length */
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#define IPC_CALL_LEN    2
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#define IPC_CALL_LEN    4
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/* Flags for calls */
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/* Flags for calls */
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#define IPC_CALL_ANSWERED    1
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#define IPC_CALL_ANSWERED      1 /**< This is answer to a call */
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#define IPC_CALL_STATIC_ALLOC  2 /**< This call will not be freed on error */
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/* Flags for ipc_wait_for_call */
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/* Flags for ipc_wait_for_call */
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#define IPC_WAIT_NONBLOCKING 1
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#define IPC_WAIT_NONBLOCKING   1
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/* Flags of callid */
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#define IPC_CALLID_ANSWERED  1
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/* Return values from IPC_ASYNC */
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#define IPC_CALLRET_FATAL         -1
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#define IPC_CALLRET_TEMPORARY     -2
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/* Macros for manipulating calling data */
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#define IPC_SET_RETVAL(data, retval)   ((data)[0] = (retval))
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#define IPC_SET_METHOD(data, val)   ((data)[0] = (val))
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#define IPC_SET_ARG1(data, val)   ((data)[1] = (val))
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#define IPC_SET_ARG2(data, val)   ((data)[2] = (val))
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#define IPC_SET_ARG3(data, val)   ((data)[3] = (val))
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#define IPC_GET_METHOD(data)           ((data)[0])
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#define IPC_GET_RETVAL(data)           ((data)[0])
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#define IPC_GET_ARG1(data)              ((data)[1])
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#define IPC_GET_ARG2(data)              ((data)[2])
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#define IPC_GET_ARG3(data)              ((data)[3])
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/* Well known phone descriptors */
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#define PHONE_NS              0
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#ifdef KERNEL
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#ifdef KERNEL
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#include <synch/waitq.h>
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#include <synch/mutex.h>
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#include <synch/spinlock.h>
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#include <synch/condvar.h>
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#include <adt/list.h>
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#include <adt/list.h>
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#define IPC_MAX_PHONES  16
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#define IPC_MAX_PHONES  16
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} call_t;
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} call_t;
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struct answerbox {
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struct answerbox {
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    mutex_t mutex;
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    waitq_t wq;
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    condvar_t cv;
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    link_t connected_phones; /**< Phones connected to this answerbox */
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    link_t connected_phones; /**< Phones connected to this answerbox */
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    link_t calls;            /**< Received calls */
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    link_t calls;            /**< Received calls */
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    link_t dispatched_calls; /* Should be hash table in the future */
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    link_t dispatched_calls; /* Should be hash table in the future */
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    link_t list;
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    link_t list;
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    answerbox_t *callee;
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    answerbox_t *callee;
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} phone_t;
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} phone_t;
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extern void ipc_create_phonecompany(void);
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extern void ipc_init(void);
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extern void ipc_init(void);
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extern call_t * ipc_wait_for_call(answerbox_t *box, int flags);
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extern call_t * ipc_wait_for_call(answerbox_t *box, int flags);
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extern void ipc_answer(answerbox_t *box, call_t *request);
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extern void ipc_answer(answerbox_t *box, call_t *request);
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extern void ipc_call(phone_t *phone, call_t *request);
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extern void ipc_call(phone_t *phone, call_t *request);
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extern void ipc_call_sync(phone_t *phone, call_t *request);
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extern void ipc_call_sync(phone_t *phone, call_t *request);
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extern void ipc_phone_destroy(phone_t *phone);
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extern void ipc_phone_destroy(phone_t *phone);
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extern void ipc_phone_init(phone_t *phone, answerbox_t *box);
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extern void ipc_phone_init(phone_t *phone, answerbox_t *box);
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extern void ipc_call_free(call_t *call);
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extern void ipc_call_free(call_t *call);
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extern call_t * ipc_call_alloc(void);
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extern call_t * ipc_call_alloc(void);
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void ipc_answerbox_init(answerbox_t *box);
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extern void ipc_answerbox_init(answerbox_t *box);
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void ipc_phone_init(phone_t *phone, answerbox_t *box);
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extern void ipc_phone_init(phone_t *phone, answerbox_t *box);
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extern void ipc_call_init(call_t *call);
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extern answerbox_t *ipc_central_box;
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extern answerbox_t *ipc_phone_0;
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#endif
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#endif
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#endif
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#endif