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15
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "db.h"
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4 #include "game.h"
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5
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6
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7
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8 void db_connect() {
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9 if (sqlite3_open(database, &db) != SQLITE_OK) {
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10 fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
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11 sqlite3_close(db);
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12 exit(1);
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13 }
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14 }
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15
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16
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17 void db_close() {
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18 sqlite3_close(db);
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19 }
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20
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21
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22 sqlite3_stmt* db_query(char* query) {
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23 int error;
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24 sqlite3_stmt* stmt;
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25
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26 error = sqlite3_prepare(db, query, -1, &stmt, NULL);
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27 if (error) {
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28 fprintf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
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29 }
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30 return stmt;
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31 }
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32
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33
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34
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35 int db_update(char* query) {
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36 int error;
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37 sqlite3_stmt* stmt;
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38
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39 error = sqlite3_prepare(db, query, -1, &stmt, NULL);
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40 if (error || sqlite3_step(stmt) != SQLITE_DONE) {
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41 fprintf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
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42 return 0;
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43 }
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44 return 1;
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45 }
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46
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47
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17
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48 int db_rows(sqlite3_stmt* stmt) {
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49 int i = 0;
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50
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51 sqlite3_reset(stmt);
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52 while (sqlite3_step(stmt) == SQLITE_ROW) {
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53 i++;
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54 }
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55 sqlite3_reset(stmt);
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56 return i;
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57 }
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58
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59
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15
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60 int read_time() {
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61 sprintf(query, "select time from game;");
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16
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62 stmt = db_query(query);
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15
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63 if (sqlite3_step(stmt) != SQLITE_ROW) {
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64 printf("error: %s\n", sqlite3_errmsg(db));
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65 exit(1);
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66 }
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67 gametime = sqlite3_column_int(stmt, 0);
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68 sqlite3_finalize(stmt);
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69 return gametime;
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70 }
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71
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17
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72
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73 void db_error(char* info) {
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74 fprintf(stderr, "%s%sSQL error: %s\n", (info) ? info : "", (info) ? ": " : "", sqlite3_errmsg(db));
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75 }
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