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#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
#include <signal.h>
#include <time.h>
#include "csv.h"
static int
test(FILE *f)
{
int line = 0;
csv_t csv[1];
csv_init(csv);
for ( int n; (n = csv_read(csv, f)) != -1; ) {
++line;
}
csv_free(csv);
return line;
}
static int
test_exception(FILE *f)
{
int line = 0;
csv_t csv[1];
csv_init(csv);
for ( int n; (n = csv_read(csv, f)) != -1; ) {
if (++line == 500000) csv_field(csv, -1);
}
csv_free(csv);
return line;
}
static void
my_signal_handler(int sig)
{
if ( sig == SIGABRT ) {
fprintf(stderr, "my_signal_handler!\n");
exit(1);
}
}
static int
test_exception_with_signal(FILE *f)
{
void (*old_handler)(int) = signal(SIGABRT, my_signal_handler);
int line = 0;
csv_t csv[1];
csv_init(csv);
for ( int n; (n = csv_read(csv, f)) != -1; ) {
if (++line == 500000) csv_field(csv, -1);
}
csv_free(csv);
signal(SIGABRT, old_handler);
return line;
}
static void
my_error_handler(const char *msg, void *env)
{
fprintf(stderr, "my_error_handler: %s\n", msg);
longjmp(*((jmp_buf *) env), 1);
}
static int
test_exception_longjmp(FILE *f)
{
/* start with default options */
csv_options_t csv_options = csv_default_options;
/* setup error handler */
jmp_buf env;
csv_options.cb_error = my_error_handler;
csv_options.cb_arg = &env;
/* setup csv-Object with custom options */
csv_t csv[1];
csv_init_opt(csv, &csv_options);
if ( setjmp(env) == 0 ) {
int line = 0;
for ( int n; (n = csv_read(csv, f)) != -1; ) {
// process data...
if (++line == 500000) csv_field(csv, -1);
}
csv_free(csv);
return line;
}
else {
csv_free(csv);
return -1;
}
}
int
main(void)
{
FILE *in = fopen("500000 Records.csv", "r");
if ( in == NULL ) {
fprintf(stderr, "failed to open testfile...\n");
return EXIT_FAILURE;
}
clock_t start = clock();
int lines = test(in);
(void) test_exception;
(void) test_exception_with_signal;
(void) test_exception_longjmp;
clock_t end = clock();
fclose(in);
printf("%d lines processed, duration: %.3lf sec\n", lines, ((double)(end - start)) / CLOCKS_PER_SEC);
return EXIT_SUCCESS;
}
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