/* we have to wait for some data to come to us */
return -EAGAIN;
+ /* We know that source->filled is at most DATA_SIZE_MAX, so if
+ we reallocate it, we'll increase the size at least a bit. */
+ assert_cc(DATA_SIZE_MAX < ENTRY_SIZE_MAX);
if (source->size - source->filled < LINE_CHUNK &&
- !realloc_buffer(source,
- MIN(source->filled + LINE_CHUNK, ENTRY_SIZE_MAX)))
+ !realloc_buffer(source, MIN(source->filled + LINE_CHUNK, ENTRY_SIZE_MAX)))
return log_oom();
+ assert(source->buf);
assert(source->size - source->filled >= LINE_CHUNK ||
source->size == ENTRY_SIZE_MAX);
- n = read(source->fd, source->buf + source->filled,
+ n = read(source->fd,
+ source->buf + source->filled,
source->size - source->filled);
if (n < 0) {
if (errno != EAGAIN)
- log_error_errno(errno, "read(%d, ..., %zu): %m", source->fd,
+ log_error_errno(errno, "read(%d, ..., %zu): %m",
+ source->fd,
source->size - source->filled);
return -errno;
} else if (n == 0)