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xz: Fix a too relaxed assertion and remove uses of SSIZE_MAX.

SSIZE_MAX isn't readily available on MSVC. Removing it means
that there is one thing less to worry when porting to MSVC.
This commit is contained in:
Lasse Collin 2023-08-31 18:14:43 +03:00
parent 74c3449d8b
commit f7093cd9d1
2 changed files with 4 additions and 5 deletions

View file

@ -1157,8 +1157,7 @@ io_fix_src_pos(file_pair *pair, size_t rewind_size)
extern size_t
io_read(file_pair *pair, io_buf *buf, size_t size)
{
// We use small buffers here.
assert(size < SSIZE_MAX);
assert(size <= IO_BUFFER_SIZE);
size_t pos = 0;
@ -1285,7 +1284,7 @@ is_sparse(const io_buf *buf)
static bool
io_write_buf(file_pair *pair, const uint8_t *buf, size_t size)
{
assert(size < SSIZE_MAX);
assert(size <= IO_BUFFER_SIZE);
while (size > 0) {
const ssize_t amount = write(pair->dest_fd, buf, size);

View file

@ -118,7 +118,7 @@ extern void io_close(file_pair *pair, bool success);
///
/// \param pair File pair having the source file open for reading
/// \param buf Destination buffer to hold the read data
/// \param size Size of the buffer; assumed be smaller than SSIZE_MAX
/// \param size Size of the buffer; must be at most IO_BUFFER_SIZE
///
/// \return On success, number of bytes read is returned. On end of
/// file zero is returned and pair->src_eof set to true.
@ -172,7 +172,7 @@ extern bool io_pread(file_pair *pair, io_buf *buf, size_t size, uint64_t pos);
///
/// \param pair File pair having the destination file open for writing
/// \param buf Buffer containing the data to be written
/// \param size Size of the buffer; assumed be smaller than SSIZE_MAX
/// \param size Size of the buffer; must be at most IO_BUFFER_SIZE
///
/// \return On success, zero is returned. On error, -1 is returned
/// and error message printed.