forked from M-Labs/artiq
92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
#include <stdarg.h>
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#include "exceptions.h"
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#include "mailbox.h"
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#include "messages.h"
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#include "rtio.h"
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#include "dds.h"
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/* for the prototypes for comm_rpc and comm_log */
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#include "comm.h"
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void exception_handler(unsigned long vect, unsigned long *sp);
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void exception_handler(unsigned long vect, unsigned long *sp)
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{
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struct msg_exception msg;
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int i;
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msg.type = MESSAGE_TYPE_EXCEPTION;
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msg.eid = EID_INTERNAL_ERROR;
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for(i=0;i<3;i++)
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msg.eparams[i] = 0;
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mailbox_send_and_wait(&msg);
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while(1);
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}
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typedef void (*kernel_function)(void);
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int main(void);
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int main(void)
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{
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kernel_function k;
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void *jb;
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jb = exception_push();
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if(exception_setjmp(jb)) {
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struct msg_exception msg;
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msg.type = MESSAGE_TYPE_EXCEPTION;
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msg.eid = exception_getid(msg.eparams);
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mailbox_send_and_wait(&msg);
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} else {
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struct msg_finished msg;
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k = mailbox_receive();
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if(!k)
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exception_raise(EID_INTERNAL_ERROR);
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dds_init();
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rtio_init();
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k();
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exception_pop(1);
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msg.type = MESSAGE_TYPE_FINISHED;
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mailbox_send_and_wait(&msg);
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}
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while(1);
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}
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int comm_rpc(int rpc_num, ...)
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{
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struct msg_rpc_request request;
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struct msg_rpc_reply *reply;
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int eid, retval;
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request.type = MESSAGE_TYPE_RPC_REQUEST;
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request.rpc_num = rpc_num;
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va_start(request.args, rpc_num);
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mailbox_send_and_wait(&request);
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va_end(request.args);
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reply = mailbox_wait_and_receive();
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if(reply->type != MESSAGE_TYPE_RPC_REPLY)
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exception_raise(EID_INTERNAL_ERROR);
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eid = reply->eid;
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retval = reply->retval;
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mailbox_acknowledge();
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if(eid != EID_NONE)
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exception_raise(eid);
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return retval;
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}
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void comm_log(const char *fmt, ...)
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{
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struct msg_log request;
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request.type = MESSAGE_TYPE_LOG;
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request.fmt = fmt;
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va_start(request.args, fmt);
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mailbox_send_and_wait(&request);
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va_end(request.args);
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}
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