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#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>
#include <emscripten.h>
int print = 1;
static int callback(void *NotUsed, int argc, char **argv, char **azColName){
int i;
if (!print) return 0;
for(i=0; i<argc; i++){
printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
}
printf("\n");
return 0;
}
int test(){
sqlite3 *db;
char *zErrMsg = 0;
int rc;
int i;
const char *commands[] = {
"CREATE TABLE t2(a INTEGER, b INTEGER, c VARCHAR(100));",
"INSERT INTO t2 VALUES(1,13153,'thirteen thousand one hundred fifty three');",
"INSERT INTO t2 VALUES(1,987,'some other number');",
"SELECT count(*) FROM t2;",
"SELECT datetime('2012-04-16 12:35:57', '+1 days');",
"SELECT a, b, c FROM t2;",
NULL
};
rc = sqlite3_open(":memory:", &db);
if( rc ){
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
exit(1);
}
for (i = 0; commands[i]; i++) {
rc = sqlite3_exec(db, commands[i], callback, 0, &zErrMsg);
if( rc!=SQLITE_OK ){
fprintf(stderr, "SQL error on %d: %s\n", i, zErrMsg);
sqlite3_free(zErrMsg);
exit(1);
}
}
sqlite3_close(db);
return 0;
}
int main(int argc, char **argv){
sqlite3 *db;
char *zErrMsg = 0;
int rc, i;
clock_t t;
int n, m;
n = argc > 1 ? atoi(argv[1]) : 5000;
m = argc > 2 ? atoi(argv[2]) : 1;
rc = sqlite3_open(":memory:", &db);
if( rc ){
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
exit(1);
}
#define RUN(cmd) \
{ \
rc = sqlite3_exec(db, cmd, callback, 0, &zErrMsg); \
if( rc!=SQLITE_OK ){ \
fprintf(stderr, "SQL error on %d: %s\n", i, zErrMsg); \
sqlite3_free(zErrMsg); \
exit(1); \
} \
}
#define TIME(msg) \
{ \
int now = emscripten_get_now(); \
printf(msg " : took %d ms\n", (int)(now - t)); \
t = now; \
}
t = clock();
TIME("'startup' - IGNORE THIS VALUE, it is an artifact");
RUN("CREATE TABLE t1(a INTEGER, b INTEGER, c VARCHAR(100));");
TIME("create table");
RUN("BEGIN;");
// n*5 INSERTs in a transaction
for (i = 0; i < n; i++) {
RUN("INSERT INTO t1 VALUES(1,12345,'one 1 one 1 one 1');");
RUN("INSERT INTO t1 VALUES(2,23422,'two two two two');");
RUN("INSERT INTO t1 VALUES(3,31233,'three three 33333333333 three');");
RUN("INSERT INTO t1 VALUES(4,41414,'FOUR four 4 phor FOUR 44444');");
RUN("INSERT INTO t1 VALUES(5,52555,'five 5 FIVE Five phayve 55 5 5 5 5 55 5');");
}
TIME("25,000 inserts");
RUN("COMMIT;");
TIME("commit");
// Counts
for (i = 0; i < m; i++) {
print = i == 0;
RUN("SELECT count(*) FROM t1;");
RUN("SELECT count(*) FROM t1 WHERE a == 4");
RUN("SELECT count(*) FROM t1 WHERE b > 20000 AND b < 50000;");
RUN("SELECT count(*) FROM t1 WHERE c like '%three%';");
}
TIME("selects");
// Index
RUN("CREATE INDEX iiaa ON t1(a);");
RUN("CREATE INDEX iibb ON t1(b);");
TIME("create indexes");
for (i = 0; i < m; i++) {
print = i == 0;
RUN("SELECT count(*) FROM t1 WHERE a == 4");
RUN("SELECT count(*) FROM t1 WHERE b > 20000 AND b < 50000;");
}
TIME("selects with indexes");
sqlite3_close(db);
return test();
}
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