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#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include "zdtmtst.h"
const char *test_doc = "Write and half way read file before migration, complete after";
const char *test_author = "Roman Kagan <rkagan@parallels.com>";
char *filename;
TEST_OPTION(filename, string, "file name", 1);
int main(int argc, char **argv)
{
int fd;
int len;
uint32_t crc = ~0;
uint8_t buf[1000000];
test_init(argc, argv);
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd < 0) {
pr_perror("can't open %s", filename);
exit(1);
}
crc = ~0;
datagen(buf, sizeof(buf), &crc);
if (write(fd, buf, sizeof(buf)) != sizeof(buf)) {
pr_perror("can't write %s", filename);
exit(1);
}
close(fd);
fd = open(filename, O_RDONLY);
if (fd < 0) {
pr_perror("can't open %s", filename);
exit(1);
}
len = sizeof(buf) / 2;
if (read(fd, buf, len) != len) {
pr_perror("can't read %s", filename);
exit(1);
}
test_daemon();
test_waitsig();
/* recover reading */
if (read(fd, buf + len, sizeof(buf) - len) != (sizeof(buf) - len)) {
fail("can't read %s", filename);
goto out;
}
crc = ~0;
if (datachk(buf, sizeof(buf), &crc)) {
fail("CRC mismatch");
goto out;
}
pass();
out:
unlink(filename);
return 0;
}
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