1 | /* |
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2 | * This file is part of libtrace |
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3 | * |
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4 | * Copyright (c) 2004 The University of Waikato, Hamilton, New Zealand. |
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5 | * Authors: Daniel Lawson |
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6 | * Perry Lorier |
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7 | * |
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8 | * All rights reserved. |
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9 | * |
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10 | * This code has been developed by the University of Waikato WAND |
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11 | * research group. For further information please see http://www.wand.net.nz/ |
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12 | * |
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13 | * libtrace is free software; you can redistribute it and/or modify |
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14 | * it under the terms of the GNU General Public License as published by |
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15 | * the Free Software Foundation; either version 2 of the License, or |
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16 | * (at your option) any later version. |
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17 | * |
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18 | * libtrace is distributed in the hope that it will be useful, |
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19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 | * GNU General Public License for more details. |
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22 | * |
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23 | * You should have received a copy of the GNU General Public License |
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24 | * along with libtrace; if not, write to the Free Software |
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25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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26 | * |
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27 | * $Id$ |
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28 | * |
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29 | */ |
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30 | |
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31 | |
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32 | #ifndef _FIFO_H_ |
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33 | #define _FIFO_H_ |
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34 | |
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35 | struct fifo_t; |
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36 | |
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37 | typedef struct fifo_state { |
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38 | long long int in; |
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39 | long long int out; |
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40 | long long int ack; |
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41 | long long int length; |
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42 | long long int used; |
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43 | } fifo_state_t; |
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44 | |
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45 | |
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46 | struct fifo_t *create_fifo(size_t size); |
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47 | void destroy_fifo(struct fifo_t *fifo); |
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48 | |
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49 | |
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50 | void fifo_stat(struct fifo_t *fifo, char *desc, int delta); |
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51 | char *fifo_stat_str(struct fifo_t *fifo, char *desc, int delta); |
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52 | void fifo_stat_int(struct fifo_t *fifo, fifo_state_t *state); |
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53 | |
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54 | size_t fifo_out_available(struct fifo_t *fifo); |
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55 | size_t fifo_ack_available(struct fifo_t *fifo); |
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56 | size_t fifo_free(struct fifo_t *fifo); |
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57 | size_t fifo_length(struct fifo_t *fifo); |
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58 | |
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59 | int fifo_write(struct fifo_t *fifo, void *buffer, size_t len); |
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60 | |
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61 | int fifo_out_read(struct fifo_t *fifo, void *buffer, size_t len); |
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62 | int fifo_ack_read(struct fifo_t *fifo, void *buffer, size_t len); |
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63 | int fifo_out_update(struct fifo_t *fifo, size_t len); |
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64 | int fifo_ack_update(struct fifo_t *fifo, size_t len); |
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65 | |
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66 | void fifo_out_reset(struct fifo_t *fifo); |
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67 | |
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68 | void fifo_flush(struct fifo_t *fifo); |
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69 | |
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70 | |
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71 | |
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72 | #endif // _FIFO_H_ |
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