mirror of
https://github.com/denoland/deno.git
synced 2024-11-25 15:29:32 -05:00
29 lines
755 B
C
29 lines
755 B
C
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
|
|
// From https://github.com/just-js/benchmarks/tree/main/01-stdio
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
int main(int argc, char *argv[]) {
|
|
unsigned int blocksize = 65536;
|
|
if (argc == 2) {
|
|
blocksize = atoi(argv[1]);
|
|
}
|
|
char buf[blocksize];
|
|
unsigned long size = 0;
|
|
unsigned int reads = 0;
|
|
int n = read(STDIN_FILENO, buf, blocksize);
|
|
while (n > 0) {
|
|
reads++;
|
|
size += n;
|
|
n = read(STDIN_FILENO, buf, blocksize);
|
|
}
|
|
if (n < 0) {
|
|
fprintf(stderr, "read: %s (%i)\n", strerror(errno), errno);
|
|
exit(1);
|
|
}
|
|
fprintf(stdout, "size %lu reads %u blocksize %u\n", size, reads, blocksize);
|
|
}
|