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https://github.com/jart/cosmopolitan.git
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23d333c090
This change includes many bug fixes, for the NT polyfills, strings, memory, boot, and math libraries which were discovered by adding more tools for recreational programming, such as PC emulation. Lemon has also been vendored because it works so well at parsing languages.
90 lines
4 KiB
C
90 lines
4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/safemacros.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/runtime/gc.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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int rc;
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struct stat st;
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const char *path;
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int64_t fd, emptyspace, physicalspace;
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TEST(fallocate_000, setup) {
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mkdir("o", 0755);
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mkdir("o/tmp", 0755);
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}
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TEST(fallocate_010, testBadFileDescriptor) {
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if (IsFreebsd()) return; /* TODO: FreeBSD failing to set carry flag bug */
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ASSERT_EQ(-1, fallocate(/*RHEL*/ 5, 0, 0, 1));
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if (errno == ENOSYS) exit(0);
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EXPECT_EQ(EBADF, errno);
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}
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TEST(fallocate_020, test) {
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path = gc(xasprintf("o/tmp/%s.%d", program_invocation_short_name));
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ASSERT_NE(-1, (fd = creat(path, 0755)));
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ASSERT_EQ(5, write(fd, "hello", 5));
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errno = 31337;
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ASSERT_NE(-1, fallocate(fd, 0, 0, 31337));
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EXPECT_EQ(31337, errno);
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ASSERT_EQ(5, write(fd, "world", 5));
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ASSERT_NE(-1, close(fd));
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ASSERT_NE(-1, stat(path, &st));
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ASSERT_EQ(31337, st.st_size);
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ASSERT_BINEQ(u"helloworld", gc(xslurp(path, NULL)));
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unlink(path);
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}
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TEST(fallocate_020, testSparseFile) {
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ASSERT_NE(-1, stat("o", &st));
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emptyspace = rounddown(6 * 1000 * 1000 * 1000, st.st_blksize);
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physicalspace = roundup(4096, st.st_blksize);
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path = gc(xasprintf("o/tmp/%s.%d", program_invocation_short_name, getpid()));
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ASSERT_NE(-1, (fd = creat(path, 0755)));
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rc = fallocate(fd, 0, emptyspace, physicalspace);
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if (rc == -1) {
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/*
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* most important feature is failing w/ enosys if not possible to
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* allocate storage like a central banker prints money.
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*/
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ASSERT_EQ(ENOSYS, errno);
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}
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ASSERT_EQ(emptyspace, lseek(fd, emptyspace, SEEK_SET));
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ASSERT_EQ(5, write(fd, "hello", 5));
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ASSERT_NE(-1, fsync(fd));
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ASSERT_NE(-1, close(fd));
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ASSERT_NE(-1, stat(path, &st));
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EXPECT_EQ(emptyspace + physicalspace, st.st_size);
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/*
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* don't care how much physical space system needs, so long as it's
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* transparent and less than 10 percent the fake space
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*/
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EXPECT_NE(0, st.st_blocks);
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EXPECT_LT(st.st_blocks * 512, emptyspace / 10);
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unlink(path);
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}
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