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fuse(4): add tests for FUSE_READ

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PR:		236379
PR:		236466
PR:		236472
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Alan Somers 2019-03-11 18:28:20 +00:00
parent e071c64b4c
commit e825cfb775
7 changed files with 607 additions and 27 deletions
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6
tests/sys/fs/fuse/Makefile
View File

@ -13,6 +13,7 @@ ATF_TESTS_CXX+= lookup
ATF_TESTS_CXX+= mkdir
ATF_TESTS_CXX+= mknod
ATF_TESTS_CXX+= open
ATF_TESTS_CXX+= read
ATF_TESTS_CXX+= readlink
ATF_TESTS_CXX+= release
ATF_TESTS_CXX+= rename
@ -68,6 +69,11 @@ SRCS.open+= mockfs.cc
SRCS.open+= open.cc
SRCS.open+= utils.cc
SRCS.read+= getmntopts.c
SRCS.read+= mockfs.cc
SRCS.read+= read.cc
SRCS.read+= utils.cc
SRCS.readlink+= getmntopts.c
SRCS.readlink+= mockfs.cc
SRCS.readlink+= readlink.cc

6
tests/sys/fs/fuse/mockfs.cc
View File

@ -165,12 +165,13 @@ void debug_fuseop(const mockfs_buf_in *in)
printf("\n");
}
MockFS::MockFS() {
MockFS::MockFS(int max_readahead) {
struct iovec *iov = NULL;
int iovlen = 0;
char fdstr[15];
m_daemon_id = NULL;
m_maxreadahead = max_readahead;
quit = 0;
/*
@ -247,8 +248,7 @@ void MockFS::init() {
m_max_write = MIN(default_max_write, MAXPHYS / 2);
out->body.init.max_write = m_max_write;
/* Default max_readahead is UINT_MAX, though it can be lowered */
out->body.init.max_readahead = UINT_MAX;
out->body.init.max_readahead = m_maxreadahead;
SET_OUT_HEADER_LEN(out, init);
write(m_fuse_fd, out, out->header.len);

7
tests/sys/fs/fuse/mockfs.hh
View File

@ -99,7 +99,7 @@ union fuse_payloads_out {
fuse_attr_out attr;
fuse_create_out create;
/* The protocol places no limits on the size of bytes */
uint8_t bytes[0x2000];
uint8_t bytes[0x20000];
fuse_entry_out entry;
fuse_init_out init;
fuse_open_out open;
@ -152,6 +152,9 @@ class MockFS {
/* file descriptor of /dev/fuse control device */
int m_fuse_fd;
/* The max_readahead filesystem option */
uint32_t m_maxreadahead;
/* pid of the test process */
pid_t m_pid;
@ -175,7 +178,7 @@ class MockFS {
uint32_t m_max_write;
/* Create a new mockfs and mount it to a tempdir */
MockFS();
MockFS(int max_readahead);
virtual ~MockFS();
/* Kill the filesystem daemon without unmounting the filesystem */

566
tests/sys/fs/fuse/read.cc Normal file
View File

@ -0,0 +1,566 @@
/*-
* Copyright (c) 2019 The FreeBSD Foundation
*
* This software was developed by BFF Storage Systems, LLC under sponsorship
* from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
extern "C" {
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <aio.h>
#include <fcntl.h>
#include <unistd.h>
}
#include "mockfs.hh"
#include "utils.hh"
using namespace testing;
class Read: public FuseTest {
public:
const static uint64_t FH = 0xdeadbeef1a7ebabe;
void expect_getattr(uint64_t ino, uint64_t size)
{
/* Until the attr cache is working, we may send an additional GETATTR */
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_GETATTR &&
in->header.nodeid == ino);
}, Eq(true)),
_)
).WillRepeatedly(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
SET_OUT_HEADER_LEN(out, attr);
out->body.attr.attr.ino = ino; // Must match nodeid
out->body.attr.attr.mode = S_IFREG | 0644;
out->body.attr.attr.size = size;
}));
}
void expect_lookup(const char *relpath, uint64_t ino)
{
EXPECT_LOOKUP(1, relpath).WillRepeatedly(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
SET_OUT_HEADER_LEN(out, entry);
out->body.entry.attr.mode = S_IFREG | 0644;
out->body.entry.nodeid = ino;
out->body.entry.attr_valid = UINT64_MAX;
}));
}
void expect_open(uint64_t ino, uint32_t flags, int times)
{
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_OPEN &&
in->header.nodeid == ino);
}, Eq(true)),
_)
).Times(times)
.WillRepeatedly(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
out->header.len = sizeof(out->header);
SET_OUT_HEADER_LEN(out, open);
out->body.open.fh = Read::FH;
out->body.open.open_flags = flags;
}));
}
void expect_read(uint64_t ino, uint64_t offset, uint64_t isize, uint64_t osize,
const void *contents)
{
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_READ &&
in->header.nodeid == ino &&
in->body.read.fh == Read::FH &&
in->body.read.offset == offset &&
in->body.read.size == isize);
}, Eq(true)),
_)
).WillOnce(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
out->header.len = sizeof(struct fuse_out_header) + osize;
memmove(out->body.bytes, contents, osize);
})).RetiresOnSaturation();
}
};
class AioRead: public Read {
virtual void SetUp() {
const char *node = "vfs.aio.enable_unsafe";
int val = 0;
size_t size = sizeof(val);
ASSERT_EQ(0, sysctlbyname(node, &val, &size, NULL, 0))
<< strerror(errno);
// TODO: With GoogleTest 1.8.2, use SKIP instead
if (!val)
FAIL() << "vfs.aio.enable_unsafe must be set for this test";
FuseTest::SetUp();
}
};
class ReadAhead: public Read, public WithParamInterface<uint32_t> {
virtual void SetUp() {
m_maxreadahead = GetParam();
Read::SetUp();
}
};
/* AIO reads need to set the header's pid field correctly */
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236379 */
TEST_F(AioRead, aio_read)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
struct aiocb iocb, *piocb;
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
expect_read(ino, 0, bufsize, bufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
iocb.aio_nbytes = bufsize;
iocb.aio_fildes = fd;
iocb.aio_buf = buf;
iocb.aio_offset = 0;
iocb.aio_sigevent.sigev_notify = SIGEV_NONE;
ASSERT_EQ(0, aio_read(&iocb)) << strerror(errno);
ASSERT_EQ(bufsize, aio_waitcomplete(&piocb, NULL)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/* 0-length reads shouldn't cause any confusion */
TEST_F(Read, direct_io_read_nothing)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
uint64_t ino = 42;
int fd;
uint64_t offset = 100;
char buf[80];
expect_lookup(RELPATH, ino);
expect_open(ino, FOPEN_DIRECT_IO, 1);
expect_getattr(ino, offset + 1000);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(0, pread(fd, buf, 0, offset)) << strerror(errno);
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/*
* With direct_io, reads should not fill the cache. They should go straight to
* the daemon
*/
TEST_F(Read, direct_io_pread)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
uint64_t offset = 100;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, FOPEN_DIRECT_IO, 1);
expect_getattr(ino, offset + bufsize);
expect_read(ino, offset, bufsize, bufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(bufsize, pread(fd, buf, bufsize, offset)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/*
* With direct_io, filesystems are allowed to return less data than is
* requested. fuse(4) should return a short read to userland.
*/
TEST_F(Read, direct_io_short_read)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefghijklmnop";
uint64_t ino = 42;
int fd;
uint64_t offset = 100;
ssize_t bufsize = strlen(CONTENTS);
ssize_t halfbufsize = bufsize / 2;
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, FOPEN_DIRECT_IO, 1);
expect_getattr(ino, offset + bufsize);
expect_read(ino, offset, bufsize, halfbufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(halfbufsize, pread(fd, buf, bufsize, offset))
<< strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, halfbufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
TEST_F(Read, eio)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_READ);
}, Eq(true)),
_)
).WillOnce(Invoke(ReturnErrno(EIO)));
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(-1, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(EIO, errno);
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
TEST_F(Read, mmap)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t len;
ssize_t bufsize = strlen(CONTENTS);
void *p;
//char buf[bufsize];
len = getpagesize();
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
/* mmap may legitimately try to read more data than is available */
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_READ &&
in->header.nodeid == ino &&
in->body.read.fh == Read::FH &&
in->body.read.offset == 0 &&
in->body.read.size >= bufsize);
}, Eq(true)),
_)
).WillOnce(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
out->header.len = sizeof(struct fuse_out_header) + bufsize;
memmove(out->body.bytes, CONTENTS, bufsize);
}));
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
p = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, 0);
ASSERT_NE(MAP_FAILED, p) << strerror(errno);
ASSERT_EQ(0, memcmp(p, CONTENTS, bufsize));
ASSERT_EQ(0, munmap(p, len)) << strerror(errno);
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/*
* Just as when FOPEN_DIRECT_IO is used, reads with O_DIRECT should bypass
* cache and to straight to the daemon
*/
TEST_F(Read, o_direct)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
expect_read(ino, 0, bufsize, bufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
// Fill the cache
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
// Reads with o_direct should bypass the cache
expect_read(ino, 0, bufsize, bufsize, CONTENTS);
ASSERT_EQ(0, fcntl(fd, F_SETFL, O_DIRECT)) << strerror(errno);
ASSERT_EQ(0, lseek(fd, 0, SEEK_SET)) << strerror(errno);
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
TEST_F(Read, pread)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
/*
* Set offset to a maxbcachebuf boundary so we'll be sure what offset
* to read from. Without this, the read might start at a lower offset.
*/
uint64_t offset = m_maxbcachebuf;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, offset + bufsize);
expect_read(ino, offset, bufsize, bufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(bufsize, pread(fd, buf, bufsize, offset)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
TEST_F(Read, read)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
expect_read(ino, 0, bufsize, bufsize, CONTENTS);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/* If the filesystem allows it, the kernel should try to readahead */
TEST_F(Read, default_readahead)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS0 = "abcdefghijklmnop";
uint64_t ino = 42;
int fd;
ssize_t bufsize = 8;
/* hard-coded in fuse_internal.c */
size_t default_maxreadahead = 65536;
ssize_t filesize = default_maxreadahead * 2;
char *contents;
char buf[bufsize];
const char *contents1 = CONTENTS0 + bufsize;
contents = (char*)calloc(1, filesize);
ASSERT_NE(NULL, contents);
memmove(contents, CONTENTS0, strlen(CONTENTS0));
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, filesize);
expect_read(ino, 0, default_maxreadahead, default_maxreadahead,
contents);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS0, bufsize));
/* A subsequent read should be serviced by cache */
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, contents1, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/* Reading with sendfile should work (though it obviously won't be 0-copy) */
TEST_F(Read, sendfile)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
char buf[bufsize];
int sp[2];
off_t sbytes;
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
/* Like mmap, sendfile may request more data than is available */
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_READ &&
in->header.nodeid == ino &&
in->body.read.fh == Read::FH &&
in->body.read.offset == 0 &&
in->body.read.size >= bufsize);
}, Eq(true)),
_)
).WillOnce(Invoke([=](auto in, auto out) {
out->header.unique = in->header.unique;
out->header.len = sizeof(struct fuse_out_header) + bufsize;
memmove(out->body.bytes, CONTENTS, bufsize);
}));
ASSERT_EQ(0, socketpair(PF_LOCAL, SOCK_STREAM, 0, sp))
<< strerror(errno);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(0, sendfile(fd, sp[1], 0, bufsize, NULL, &sbytes, 0))
<< strerror(errno);
ASSERT_EQ(bufsize, read(sp[0], buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS, bufsize));
close(sp[1]);
close(sp[0]);
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/* sendfile should fail gracefully if fuse declines the read */
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236466 */
TEST_F(Read, DISABLED_sendfile_eio)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS = "abcdefgh";
uint64_t ino = 42;
int fd;
ssize_t bufsize = strlen(CONTENTS);
int sp[2];
off_t sbytes;
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, bufsize);
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
return (in->header.opcode == FUSE_READ);
}, Eq(true)),
_)
).WillOnce(Invoke(ReturnErrno(EIO)));
ASSERT_EQ(0, socketpair(PF_LOCAL, SOCK_STREAM, 0, sp))
<< strerror(errno);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_NE(0, sendfile(fd, sp[1], 0, bufsize, NULL, &sbytes, 0));
close(sp[1]);
close(sp[0]);
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
/* fuse(4) should honor the filesystem's requested m_readahead parameter */
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236472 */
TEST_P(ReadAhead, DISABLED_readahead) {
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
const char *CONTENTS0 = "abcdefghijklmnop";
uint64_t ino = 42;
int fd;
ssize_t bufsize = 8;
ssize_t filesize = m_maxbcachebuf * 2;
char *contents;
char buf[bufsize];
ASSERT_TRUE(GetParam() < (uint32_t)m_maxbcachebuf)
<< "Test assumes that max_readahead < maxbcachebuf";
contents = (char*)calloc(1, filesize);
ASSERT_NE(NULL, contents);
memmove(contents, CONTENTS0, strlen(CONTENTS0));
expect_lookup(RELPATH, ino);
expect_open(ino, 0, 1);
expect_getattr(ino, filesize);
/* fuse(4) should only read ahead the allowed amount */
expect_read(ino, 0, GetParam(), GetParam(), contents);
fd = open(FULLPATH, O_RDONLY);
ASSERT_LE(0, fd) << strerror(errno);
ASSERT_EQ(bufsize, read(fd, buf, bufsize)) << strerror(errno);
ASSERT_EQ(0, memcmp(buf, CONTENTS0, bufsize));
/* Deliberately leak fd. close(2) will be tested in release.cc */
}
INSTANTIATE_TEST_CASE_P(RA, ReadAhead, ::testing::Values(0u, 2048u));

16
tests/sys/fs/fuse/utils.cc
View File

@ -65,6 +65,22 @@ class FuseEnv: public ::testing::Environment {
}
};
void FuseTest::SetUp() {
const char *node = "vfs.maxbcachebuf";
int val = 0;
size_t size = sizeof(val);
ASSERT_EQ(0, sysctlbyname(node, &val, &size, NULL, 0))
<< strerror(errno);
m_maxbcachebuf = val;
try {
m_mock = new MockFS(m_maxreadahead);
} catch (std::system_error err) {
FAIL() << err.what();
}
}
static void usage(char* progname) {
fprintf(stderr, "Usage: %s [-v]\n\t-v increase verbosity\n", progname);
exit(2);

18
tests/sys/fs/fuse/utils.hh
View File

@ -29,16 +29,20 @@
class FuseTest : public ::testing::Test {
protected:
uint32_t m_maxreadahead;
MockFS *m_mock = NULL;
public:
virtual void SetUp() {
try {
m_mock = new MockFS{};
} catch (std::system_error err) {
FAIL() << err.what();
}
}
int m_maxbcachebuf;
/*
* libfuse's default max_readahead is UINT_MAX, though it can be
* lowered
*/
FuseTest(): FuseTest(UINT_MAX) {}
FuseTest(uint32_t maxreadahead): m_maxreadahead(maxreadahead) {}
virtual void SetUp();
virtual void TearDown() {
if (m_mock)

15
tests/sys/fs/fuse/write.cc
View File

@ -56,20 +56,6 @@ using namespace testing;
class Write: public FuseTest {
public:
int m_maxbcachebuf;
virtual void SetUp() {
const char *node = "vfs.maxbcachebuf";
int val = 0;
size_t size = sizeof(val);
ASSERT_EQ(0, sysctlbyname(node, &val, &size, NULL, 0))
<< strerror(errno);
m_maxbcachebuf = val;
FuseTest::SetUp();
}
const static uint64_t FH = 0xdeadbeef1a7ebabe;
void expect_getattr(uint64_t ino, uint64_t size)
{
@ -137,7 +123,6 @@ void expect_read(uint64_t ino, uint64_t offset, uint64_t size,
out->header.len = sizeof(struct fuse_out_header) + size;
memmove(out->body.bytes, contents, size);
})).RetiresOnSaturation();
}
void expect_release(uint64_t ino, ProcessMockerT r)