/*

* Copyright 2015 The Emscripten Authors. All rights reserved.

* Emscripten is available under two separate licenses, the MIT license and the

* University of Illinois/NCSA Open Source License. Both these licenses can be

* found in the LICENSE file.

*/

#include <stdio.h>

#include <emscripten.h>

#include <fcntl.h>

#include <unistd.h>

#include <sys/stat.h>

#include <errno.h>

#include <string.h>

int result = 1;

void success()

{

REPORT_RESULT(result);

}

int main() {

int fd;

#if FIRST

// We first make sure the file doesn't currently exist

// (we delete it at the end of !FIRST). We then write a file,

// call fsync, and close the file.

struct stat st;

// a file whose contents are just 'az'

if ((stat("/working1/wakaka.txt", &st) != -1) || (errno != ENOENT))

result = -1000 - errno;

fd = open("/working1/wakaka.txt", O_RDWR | O_CREAT, 0666);

if (fd == -1)

result = -2000 - errno;

else

{

if (write(fd,"az",2) != 2)

result = -3000 - errno;

if (fsync(fd) != 0)

result = -4000 - errno;

if (close(fd) != 0)

result = -5000 - errno;

}

REPORT_RESULT(result);

#else

// does the 'az' file exist, and does it contain 'az'?

fd = open("/working1/wakaka.txt", O_RDONLY);

if (fd == -1)

result = -6000 - errno;

else

{

char bf[4];

int bytes_read = read(fd,&bf[0],sizeof(bf));

if (bytes_read != 2)

result = -7000;

else if ((bf[0] != 'a') || (bf[1] != 'z'))

result = -8000;

if (close(fd) != 0)

result = -9000 - errno;

if (unlink("/working1/wakaka.txt") != 0)

result = -10000 - errno;

}

// sync from memory state to persisted and then

// run 'success'

EM_ASM(

FS.syncfs(function (err) {

assert(!err);

ccall('success', 'v');

});

);

emscripten_exit_with_live_runtime();

return 0;

#endif

}