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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <ipc/services.h>
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#include <ipc/services.h>
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#include <sysinfo.h>
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#include <sysinfo.h>
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#include <async.h>
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#include <async.h>
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#include <as.h>
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#include <align.h>
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#include <errno.h>
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#include "fb.h"
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#include "fb.h"
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#include "sysio.h"
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#include "sysio.h"
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#include "ega.h"
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#include "ega.h"
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#include "main.h"
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void receive_comm_area(ipc_callid_t callid, ipc_call_t *call, void **area,
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               size_t maxsize)
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{
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    void *dest;
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    if (*area) {
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        ipc_answer_fast(callid, ELIMIT, 0, 0);
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        return;
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    }
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    if (IPC_GET_ARG2(*call) > ALIGN_UP(maxsize, PAGE_SIZE)) {
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        ipc_answer_fast(callid, EINVAL, 0, 0);
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        return;
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    }
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    dest = as_get_mappable_page(maxsize);
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    if (ipc_answer_fast(callid, 0, (sysarg_t)dest, 0) == 0)
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        *area = dest;
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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    ipcarg_t phonead;
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    ipcarg_t phonead;
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    int initialized = 0;
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    int initialized = 0;