[Qemu-devel] [PATCH v5 00/11] curl: fix curl read

[Fam Zheng]

CURL library API has changed, the current curl driver is not working.
This patch rewrites the use of API as well as the structure of internal
states.

BDRVCURLState holds the pointer to curl multi interface (man 3
libcurl-multi), and 4 lists for internal states:
 - CURLState holds state for libcurl connection (man 3 libcurl-easy)
 - CURLSockInfo holds information for libcurl socket interface (man 3
   curl_multi_socket_action).
 - CURLDataCache holds the user data read from libcurl, it is in a list
   ordered by access, the used cache is moved to list head on access, so
   the tail element is freed first. BDRVCURLState.cache_quota is the
   threshold to start freeing cache.
 - CURLAIOCB holds ongoing aio information.

Changes from v4:
  11: Added:
        block/curl.c: Refuse to open the handle for writes.

Changes from v3:
  01, 06, 07: Add QLIST_INIT in qemu_open to initialize each list.
  07: Move clean up for s->acbs from later patch to here. Use qemu_aio_relase 
instead of g_free on acb.
      Fix use-after-free bug. [Rich]

Changes from v2:
  00: Removed previous 09, since changes are included in previous
      commits.
      previous 09: curl: release everything on curl close.
  01: Add commit message for introducing CURLSockInfo. Remove
      unnecessary pointer type cast.
  02: Use sizeof instead of macro for s->range len.
  04: Use pstrcpy and strncasecmp.
  06: Add commit message for why is there a cache in curl.c.

Changes from v1:
   Split to multiple patches. The final status should be identical to v1.

Fam Zheng (10):
  curl: introduce CURLSockInfo to BDRVCURLState.
  curl: change magic number to sizeof
  curl: change curl_multi_do to curl_fd_handler
  curl: fix curl_open
  curl: add timer to BDRVCURLState
  curl: introduce CURLDataCache
  curl: make use of CURLDataCache.
  curl: use list to store CURLState
  curl: add cache quota.
  curl: introduce ssl_no_cert runtime option.

Richard W.M. Jones (1):
  block/curl.c: Refuse to open the handle for writes.

 block/curl.c | 578 +++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 365 insertions(+), 213 deletions(-)

-- 
1.8.2.3