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#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "zdtmtst.h"
const char *test_doc = "Check that pipes with a non-default size can be c/r-ed";
const char *test_author = "Andrei Vagin <avagin@gmail.com>";
#define DATA_SIZE (1 << 20)
#define BUF_SIZE (4096)
int main(int argc, char **argv)
{
int p[2][2], i;
uint8_t buf[BUF_SIZE];
uint32_t crc;
test_init(argc, argv);
for (i = 0; i < 2; i++) {
if (pipe2(p[i], O_NONBLOCK)) {
pr_perror("pipe");
return 1;
}
if (fcntl(p[i][1], F_SETPIPE_SZ, DATA_SIZE) == -1) {
pr_perror("Unable to change a pipe size");
return 1;
}
}
crc = ~0;
datagen(buf, BUF_SIZE, &crc);
for (i = 0; i < DATA_SIZE / BUF_SIZE; i++) {
if (write(p[0][1], buf, BUF_SIZE) != BUF_SIZE) {
pr_perror("write");
return 1;
}
}
test_daemon();
test_waitsig();
for (i = 0; i < DATA_SIZE / BUF_SIZE; i++) {
if (read(p[0][0], buf, BUF_SIZE) != BUF_SIZE) {
pr_perror("read");
return 1;
}
}
for (i = 0; i < 2; i++) {
int size;
size = fcntl(p[i][1], F_GETPIPE_SZ);
if (size < 0) {
pr_perror("Unable to get a pipe size");
return 1;
}
if (size != DATA_SIZE) {
fail("%d: size %d expected %d", i, size, DATA_SIZE);
return 1;
}
}
pass();
return 0;
}
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