Files
AnyPS5/core/libs/tests/FilePosition.cpp
T

77 lines
2.4 KiB
C++

#include "prx/libc/include/Api.hpp"
#include "prx/libc/include/FileStream.hpp"
#include "prx/libc/include/general/VabiMacros.hpp"
#include "tests/TemporaryFile.hpp"
#include <cerrno>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#include <windows.h>
#else
#include <unistd.h>
#endif
static void Check(bool value, int line) {
if (!value) {
std::fprintf(stderr, "File position check failed at line %d\n", line);
std::abort();
}
}
#define Require(value) Check((value), __LINE__)
static void CheckFseekBounds() {
FileStream file(TemporaryFile::Open());
Require(fwrite_nid_postfix("0123456789", 1, 10, &file) == 10);
rewind_nid_postfix(&file);
errno = 0;
Require(fseek_nid_postfix(&file, -1, SEEK_SET) == -1 && errno == EINVAL);
Require(ftello_nid_postfix(&file) == 0);
Require(fseek_nid_postfix(&file, -3, SEEK_END) == 0 && ftello_nid_postfix(&file) == 7);
Require(fgetc_nid_postfix(&file) == '7');
Require(fseek_nid_postfix(&file, 100, SEEK_SET) == 0 && ftello_nid_postfix(&file) == 100);
Require(fgetc_nid_postfix(&file) == EOF && feof_nid_postfix(&file) != 0);
file.Close();
}
int main() {
CheckFseekBounds();
FileStream file(TemporaryFile::Open());
Require(std::fputs("position", file.GetHandle()) >= 0);
std::int64_t position = -1;
Require(fgetpos_nid_postfix(&file, &position) == 0);
Require(position == 8);
const std::int64_t beginning = 0;
Require(fsetpos_nid_postfix(&file, &beginning) == 0);
Require(std::fgetc(file.GetHandle()) == 'p');
Require(fgetpos_nid_postfix(&file, &position) == 0 && position == 1);
file.Close();
int descriptors[2];
#ifdef _WIN32
Require(_pipe(descriptors, 4096, _O_BINARY) == 0);
FileStream pipe(_fdopen(descriptors[0], "rb"));
Require(_close(descriptors[1]) == 0);
Require(CloseHandle(reinterpret_cast<HANDLE>(_get_osfhandle(descriptors[0]))) != 0);
#else
Require(::pipe(descriptors) == 0);
FileStream pipe(::fdopen(descriptors[0], "rb"));
Require(::close(descriptors[1]) == 0);
#endif
Require(ftello_nid_postfix(&pipe) == -1);
const int expectedError = errno;
Require(expectedError != 0);
position = 123;
errno = 0;
Require(fgetpos_nid_postfix(&pipe, &position) != 0);
Require(errno == expectedError);
Require(position == 123);
#ifdef _WIN32
Require(std::fclose(pipe.GetHandle()) == EOF);
#else
pipe.Close();
#endif
}