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Covert Kernel File reader/writer. 3.0.52

This commit is contained in:
winlin 2019-05-14 08:13:27 +08:00
parent d5661dcc4e
commit 1605000817
6 changed files with 78 additions and 16 deletions

View file

@ -164,6 +164,7 @@ Please select according to languages:
### V3 changes
* v3.0, 2019-05-14, Covert Kernel File reader/writer. 3.0.52
* v3.0, 2019-04-30, Refine typo in files. 3.0.51
* v3.0, 2019-04-25, Upgrade http-parser from 2.1 to 2.9.2 and cover it. 3.0.50
* v3.0, 2019-04-22, Refine in time unit. 3.0.49

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@ -27,7 +27,7 @@
// The version config.
#define VERSION_MAJOR 3
#define VERSION_MINOR 0
#define VERSION_REVISION 51
#define VERSION_REVISION 52
// The macros generated by configure script.
#include <srs_auto_headers.hpp>

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@ -79,7 +79,7 @@
#define ERROR_SYSTEM_PID_SET_FILE_INFO 1040
#define ERROR_SYSTEM_FILE_ALREADY_OPENED 1041
#define ERROR_SYSTEM_FILE_OPENE 1042
#define ERROR_SYSTEM_FILE_CLOSE 1043
//#define ERROR_SYSTEM_FILE_CLOSE 1043
#define ERROR_SYSTEM_FILE_READ 1044
#define ERROR_SYSTEM_FILE_WRITE 1045
#define ERROR_SYSTEM_FILE_EOF 1046

View file

@ -39,6 +39,7 @@ using namespace std;
// For utest to mock it.
_srs_open_t _srs_open_fn = ::open;
_srs_write_t _srs_write_fn = ::write;
_srs_read_t _srs_read_fn = ::read;
_srs_lseek_t _srs_lseek_fn = ::lseek;
SrsFileWriter::SrsFileWriter()
@ -191,7 +192,7 @@ srs_error_t SrsFileReader::open(string p)
return srs_error_new(ERROR_SYSTEM_FILE_ALREADY_OPENED, "file %s already opened", path.c_str());
}
if ((fd = ::open(p.c_str(), O_RDONLY)) < 0) {
if ((fd = _srs_open_fn(p.c_str(), O_RDONLY)) < 0) {
return srs_error_new(ERROR_SYSTEM_FILE_OPENE, "open file %s failed", p.c_str());
}
@ -209,9 +210,7 @@ void SrsFileReader::close()
}
if (::close(fd) < 0) {
ret = ERROR_SYSTEM_FILE_CLOSE;
srs_error("close file %s failed. ret=%d", path.c_str(), ret);
return;
srs_warn("close file %s failed. ret=%d", path.c_str(), ret);
}
fd = -1;
@ -225,26 +224,26 @@ bool SrsFileReader::is_open()
int64_t SrsFileReader::tellg()
{
return (int64_t)::lseek(fd, 0, SEEK_CUR);
return (int64_t)_srs_lseek_fn(fd, 0, SEEK_CUR);
}
void SrsFileReader::skip(int64_t size)
{
off_t r0 = ::lseek(fd, (off_t)size, SEEK_CUR);
off_t r0 = _srs_lseek_fn(fd, (off_t)size, SEEK_CUR);
srs_assert(r0 != -1);
}
int64_t SrsFileReader::seek2(int64_t offset)
{
return (int64_t)::lseek(fd, (off_t)offset, SEEK_SET);
return (int64_t)_srs_lseek_fn(fd, (off_t)offset, SEEK_SET);
}
int64_t SrsFileReader::filesize()
{
int64_t cur = tellg();
int64_t size = (int64_t)::lseek(fd, 0, SEEK_END);
int64_t size = (int64_t)_srs_lseek_fn(fd, 0, SEEK_END);
off_t r0 = ::lseek(fd, (off_t)cur, SEEK_SET);
off_t r0 = _srs_lseek_fn(fd, (off_t)cur, SEEK_SET);
srs_assert(r0 != -1);
return size;
@ -256,7 +255,7 @@ srs_error_t SrsFileReader::read(void* buf, size_t count, ssize_t* pnread)
ssize_t nread;
// TODO: FIXME: use st_read.
if ((nread = ::read(fd, buf, count)) < 0) {
if ((nread = _srs_read_fn(fd, buf, count)) < 0) {
return srs_error_new(ERROR_SYSTEM_FILE_READ, "read from file %s failed", path.c_str());
}
@ -273,7 +272,7 @@ srs_error_t SrsFileReader::read(void* buf, size_t count, ssize_t* pnread)
srs_error_t SrsFileReader::lseek(off_t offset, int whence, off_t* seeked)
{
off_t sk = ::lseek(fd, offset, whence);
off_t sk = _srs_lseek_fn(fd, offset, whence);
if (sk < 0) {
return srs_error_new(ERROR_SYSTEM_FILE_SEEK, "seek %v failed", (int)sk);
}

View file

@ -111,6 +111,7 @@ public:
// For utest to mock it.
typedef int (*_srs_open_t)(const char* path, int oflag, ...);
typedef ssize_t (*_srs_write_t)(int fildes, const void* buf, size_t nbyte);
typedef ssize_t (*_srs_read_t)(int fildes, void* buf, size_t nbyte);
typedef off_t (*_srs_lseek_t)(int fildes, off_t offset, int whence);
#endif

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@ -2974,6 +2974,7 @@ VOID TEST(KernelFileTest, FileWriteReader)
// Mock the system call hooks.
extern _srs_open_t _srs_open_fn;
extern _srs_write_t _srs_write_fn;
extern _srs_read_t _srs_read_fn;
extern _srs_lseek_t _srs_lseek_fn;
int mock_open(const char* /*path*/, int /*oflag*/, ...) {
@ -2984,6 +2985,10 @@ ssize_t mock_write(int /*fildes*/, const void* /*buf*/, size_t /*nbyte*/) {
return -1;
}
ssize_t mock_read(int /*fildes*/, void* /*buf*/, size_t /*nbyte*/) {
return -1;
}
off_t mock_lseek(int /*fildes*/, off_t /*offset*/, int /*whence*/) {
return -1;
}
@ -2993,18 +2998,23 @@ class MockSystemIO
private:
_srs_open_t oo;
_srs_write_t ow;
_srs_read_t _or;
_srs_lseek_t os;
public:
MockSystemIO(_srs_open_t o = NULL, _srs_write_t w = NULL, _srs_lseek_t s = NULL) {
MockSystemIO(_srs_open_t o = NULL, _srs_write_t w = NULL, _srs_read_t r = NULL, _srs_lseek_t s = NULL) {
oo = _srs_open_fn;
ow = _srs_write_fn;
os = _srs_lseek_fn;
_or = _srs_read_fn;
if (o) {
_srs_open_fn = o;
}
if (w) {
_srs_write_fn = w;
}
if (r) {
_srs_read_fn = r;
}
if (s) {
_srs_lseek_fn = s;
}
@ -3016,13 +3026,16 @@ public:
if (ow) {
_srs_write_fn = ow;
}
if (_or) {
_srs_read_fn = _or;
}
if (os) {
_srs_lseek_fn = os;
}
}
};
VOID TEST(KernelFileTest, WriteSpecialCase)
VOID TEST(KernelFileWriterTest, WriteSpecialCase)
{
srs_error_t err;
@ -3098,7 +3111,7 @@ VOID TEST(KernelFileTest, WriteSpecialCase)
HELPER_EXPECT_FAILED(f.writev(iovs, 3, NULL));
}
if (true) {
MockSystemIO _mockio(NULL, NULL, mock_lseek);
MockSystemIO _mockio(NULL, NULL, NULL, mock_lseek);
SrsFileWriter f;
HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
@ -3106,6 +3119,54 @@ VOID TEST(KernelFileTest, WriteSpecialCase)
}
}
VOID TEST(KernelFileReaderTest, WriteSpecialCase)
{
srs_error_t err;
// Should fail when open multiple times.
if (true) {
SrsFileReader f;
HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
HELPER_EXPECT_FAILED(f.open("/dev/null"));
}
// Always fail.
if (true) {
MockSystemIO _mockio(mock_open);
SrsFileReader f;
HELPER_EXPECT_FAILED(f.open("/dev/null"));
HELPER_EXPECT_FAILED(f.open("/dev/null"));
}
// Should ok for lseek.
if (true) {
SrsFileWriter f;
HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
off_t seeked = 0;
HELPER_EXPECT_SUCCESS(f.lseek(0, SEEK_CUR, &seeked));
EXPECT_EQ(0, seeked);
}
// Always fail.
if (true) {
MockSystemIO _mockio(NULL, NULL, mock_read);
SrsFileReader f;
HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
ssize_t nn = 0;
char buf[16];
HELPER_EXPECT_FAILED(f.read(buf, sizeof(buf), &nn));
}
if (true) {
MockSystemIO _mockio(NULL, NULL, NULL, mock_lseek);
SrsFileReader f;
HELPER_EXPECT_SUCCESS(f.open("/dev/null"));
HELPER_EXPECT_FAILED(f.lseek(0, 0, NULL));
}
}
VOID TEST(KernelFLVTest, CoverAll)
{
if (true) {