C++ (Cpp) get_offset_and_size示例

示例#1

文件： integck.c 项目： OpenNoah/mtd-utils

static void file_write(struct file_info *file, int fd)
{
	off_t offset;
	size_t size, actual;
	unsigned seed;
	int truncate = 0;

	get_offset_and_size(file, &offset, &size);
	seed = tests_random_no(10000000);
	actual = file_write_data(file, fd, offset, size, seed);

	if (offset + actual <= file->length && shrink)
		/* 1 time in 100, when shrinking
		   truncate after the write */
		if (tests_random_no(100) == 0)
			truncate = 1;

	if (actual != 0)
		file_write_info(file, offset, actual, seed);

	/* Delete errored files */
	if (file->no_space_error) {
		if (!file->deleted) {
			struct fd_info *fdi;

			fdi = file->fds;
			while (fdi) {
				file_close(fdi);
				fdi = file->fds;
			}
			file_delete(file);
		}
		return;
	}

	if (truncate) {
		size_t new_length = offset + actual;
		if (file_ftruncate(file, fd, new_length))
			file_truncate_info(file, new_length);
	}
}

示例#2

static void file_write(struct file_info *file, int fd)
{
	off_t offset;
	size_t size, actual;
	unsigned seed;
	int truncate = 0;

	if (can_mmap && !full && !file->deleted && tests_random_no(100) == 1) {
		file_mmap_write(file);
		return;
	}

	get_offset_and_size(file, &offset, &size);
	seed = tests_random_no(10000000);
	actual = file_write_data(file, fd, offset, size, seed);

	if (offset + actual <= file->length && shrink)
		/* 1 time in 100, when shrinking
		   truncate after the write */
		if (tests_random_no(100) == 0)
			truncate = 1;

	if (actual != 0)
		file_write_info(file, offset, actual, seed);

	/* Delete errored files */
	if (!check_nospc_files && file->no_space_error) {
		file_delete(file);
		return;
	}

	if (truncate) {
		size_t new_length = offset + actual;
		if (file_ftruncate(file, fd, new_length))
			file_truncate_info(file, new_length);
	}
}