diff options
Diffstat (limited to 'lib/Buffer.cc')
| -rw-r--r-- | lib/Buffer.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/Buffer.cc b/lib/Buffer.cc index b3cb10b..afbaa6f 100644 --- a/lib/Buffer.cc +++ b/lib/Buffer.cc @@ -10,6 +10,9 @@ Buffer::~Buffer() { } ssize_t Buffer::write(const void *buf, size_t count) { + if (!count) { + return 0; + } if (count + realsiz > bufsiz) { int numblocks = (count + realsiz) / realloc_threshold; int remains = (count + realsiz) % realloc_threshold; @@ -33,10 +36,10 @@ ssize_t Buffer::read(void *buf, size_t count) throw (GeneralException) { if (ptr >= realloc_threshold) { int numblocks = (bufsiz / realloc_threshold) - (ptr / realloc_threshold); - memmove(buffer, buffer + numblocks * realloc_threshold, numblocks * realloc_threshold); + memmove(buffer, buffer + (bufsiz - numblocks * realloc_threshold), numblocks * realloc_threshold); + ptr -= (bufsiz - numblocks * realloc_threshold); + realsiz -= (bufsiz - numblocks * realloc_threshold); buffer = (char *) realloc(buffer, bufsiz = (numblocks * realloc_threshold)); - ptr -= numblocks * realloc_threshold; - realsiz -= numblocks * realloc_threshold; } return count; |