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lnav/test/drive_sql.cc

79 lines
1.8 KiB
C++

#include <iostream>
#include <assert.h>
#include <sqlite3.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "base/auto_mem.hh"
#include "base/injector.hh"
#include "regexp_vtab.hh"
#include "sqlite-extension-func.hh"
#include "xpath_vtab.hh"
struct callback_state {
int cs_row;
};
static int
sql_callback(void* ptr, int ncols, char** colvalues, char** colnames)
{
struct callback_state* cs = (struct callback_state*) ptr;
printf("Row %d:\n", cs->cs_row);
for (int lpc = 0; lpc < ncols; lpc++) {
printf(" Column %10s: %s\n", colnames[lpc], colvalues[lpc]);
}
cs->cs_row += 1;
return 0;
}
int
main(int argc, char* argv[])
{
int retval = EXIT_SUCCESS;
auto_mem<sqlite3> db(sqlite3_close);
std::string stmt;
log_argv(argc, argv);
if (argc == 2) {
stmt = argv[1];
} else {
std::getline(std::cin, stmt, '\0');
}
if (sqlite3_open(":memory:", db.out()) != SQLITE_OK) {
fprintf(stderr, "error: unable to make sqlite memory database\n");
retval = EXIT_FAILURE;
} else {
auto_mem<char> errmsg(sqlite3_free);
struct callback_state state;
memset(&state, 0, sizeof(state));
{
int register_collation_functions(sqlite3 * db);
register_sqlite_funcs(db.in(), sqlite_registration_funcs);
register_collation_functions(db.in());
}
register_regexp_vtab(db.in());
register_xpath_vtab(db.in());
if (sqlite3_exec(
db.in(), stmt.c_str(), sql_callback, &state, errmsg.out())
!= SQLITE_OK)
{
fprintf(stderr, "error: sqlite3_exec failed -- %s\n", errmsg.in());
retval = EXIT_FAILURE;
}
}
return retval;
}