C++ (Cpp) sk_fileno Examples

Example #1

File: DataRefTest.cpp Project: trevorlinton/skia

static void test_files(skiatest::Reporter* reporter) {
    SkString tmpDir = skiatest::Test::GetTmpDir();
    if (tmpDir.isEmpty()) {
        return;
    }

    SkString path = SkOSPath::SkPathJoin(tmpDir.c_str(), "data_test");

    const char s[] = "abcdefghijklmnopqrstuvwxyz";
    {
        SkFILEWStream writer(path.c_str());
        if (!writer.isValid()) {
            ERRORF(reporter, "Failed to create tmp file %s\n", path.c_str());
            return;
        }
        writer.write(s, 26);
    }

    SkFILE* file = sk_fopen(path.c_str(), kRead_SkFILE_Flag);
    SkAutoTUnref<SkData> r1(SkData::NewFromFILE(file));
    REPORTER_ASSERT(reporter, r1.get() != NULL);
    REPORTER_ASSERT(reporter, r1->size() == 26);
    REPORTER_ASSERT(reporter, strncmp(static_cast<const char*>(r1->data()), s, 26) == 0);

    int fd = sk_fileno(file);
    SkAutoTUnref<SkData> r2(SkData::NewFromFD(fd));
    REPORTER_ASSERT(reporter, r2.get() != NULL);
    REPORTER_ASSERT(reporter, r2->size() == 26);
    REPORTER_ASSERT(reporter, strncmp(static_cast<const char*>(r2->data()), s, 26) == 0);
}

Example #2

File: SkOSFile_win.cpp Project: Wafflespeanut/gecko-dev

size_t sk_qread(FILE* file, void* buffer, size_t count, size_t offset) {
    int fileno = sk_fileno(file);
    HANDLE fileHandle = (HANDLE)_get_osfhandle(fileno);
    if (INVALID_HANDLE_VALUE == file) {
        return SIZE_MAX;
    }

    OVERLAPPED overlapped = {0};
    ULARGE_INTEGER winOffset;
    winOffset.QuadPart = offset;
    overlapped.Offset = winOffset.LowPart;
    overlapped.OffsetHigh = winOffset.HighPart;

    if (!SkTFitsIn<DWORD>(count)) {
        count = std::numeric_limits<DWORD>::max();
    }

    DWORD bytesRead;
    if (ReadFile(fileHandle, buffer, static_cast<DWORD>(count), &bytesRead, &overlapped)) {
        return bytesRead;
    }
    if (GetLastError() == ERROR_HANDLE_EOF) {
        return 0;
    }
    return SIZE_MAX;
}

Example #3

File: SkOSFile_posix.cpp Project: 03050903/skia

void* sk_fmmap(FILE* f, size_t* size) {
    int fd = sk_fileno(f);
    if (fd < 0) {
        return nullptr;
    }

    return sk_fdmmap(fd, size);
}

Example #4

File: SkOSFile_win.cpp Project: Wafflespeanut/gecko-dev

void* sk_fmmap(FILE* f, size_t* length) {
    int fileno = sk_fileno(f);
    if (fileno < 0) {
        return nullptr;
    }

    return sk_fdmmap(fileno, length);
}

Example #5

File: SkOSFile_win.cpp Project: Arternis/skia

void* sk_fmmap(SkFILE* f, size_t* length) {
    int fileno = sk_fileno(f);
    if (fileno < 0) {
        return NULL;
    }

    return sk_fdmmap(fileno, length);
}

Example #6

File: SkOSFile_posix.cpp Project: Arternis/skia

void* sk_fmmap(SkFILE* f, size_t* size) {
    int fd = sk_fileno(f);
    if (fd < 0) {
        return NULL;
    }

    return sk_fdmmap(fd, size);
}

Example #7

File: SkOSFile_posix.cpp Project: android/platform_external_skia

size_t sk_qread(FILE* file, void* buffer, size_t count, size_t offset) {
    int fd = sk_fileno(file);
    if (fd < 0) {
        return SIZE_MAX;
    }
    ssize_t bytesRead = pread(fd, buffer, count, offset);
    if (bytesRead < 0) {
        return SIZE_MAX;
    }
    return bytesRead;
}

Example #8

File: SkOSFile_win.cpp Project: Wafflespeanut/gecko-dev

size_t sk_fgetsize(FILE* f) {
    int fileno = sk_fileno(f);
    if (fileno < 0) {
        return 0;
    }

    HANDLE file = (HANDLE)_get_osfhandle(fileno);
    if (INVALID_HANDLE_VALUE == file) {
        return 0;
    }

    LARGE_INTEGER fileSize;
    if (0 == GetFileSizeEx(file, &fileSize)) {
        return 0;
    }
    if (!SkTFitsIn<size_t>(fileSize.QuadPart)) {
        return 0;
    }
    return static_cast<size_t>(fileSize.QuadPart);
}