Commit Graph

8 Commits (94571c5dd28858ff68c44b648fd41c5d87c0e28d)

Author SHA1 Message Date
Ken Steele b076a26cdc Replace ReleaseData function on Packet Structure with ReleasePacket.
This commit allows handling Packets allocated by different methods.
The ReleaseData function pointer in the Packet structure is replaced
with ReleasePacket function pointer, which is then always called to
release the memory associated with a Packet.

Currently, the only usage of ReleaseData is in AF Packet. Previously
ReleaseData was only called when it was not NULL. To implement the
same functionality as before in AF Packet, a new function is defined
in AF Packet to first call the AFP specific ReleaseData function and
then releases the Packet structure.

Three new general functions are defined for releasing packets in the
default case:
    1) PacketFree() - To release a packet alloced with SCMalloc()
    2) PacketPoolReturnPacket() - For packets allocated from the Packet Pool.
                                  Calls RECYCLE_PACKET(p)
    3) PacketFreeOrRelease() - Calls PacketFree() or PacketPoolReturnPacket()
                                 based on the PKT_ALLOC flag.

Having these functions removes the need to check the PKT_ALLOC flag
when releasing a packet in most cases, since the ReleasePacket
function encodes how the Packet was allocated. The PKT_ALLOC flag is
still set and is needed when AF Packet releases a packet, since it
replaces the ReleasePacket function pointer with its own function and
then calls PacketFreeOfRelease(), which uses the PKT_ALLOC flag.
13 years ago
Victor Julien 728c4f9ea0 Clean up packet pool at shut down. 14 years ago
Victor Julien ffcd512167 Clean up packet pool handler on shutdown. 16 years ago
Victor Julien 6519a86ec7 Move packet pool to ringbuffer, update packet pool api and ringbuffer api. Remove memset usage from PACKET_RECYCLE, add proper cleanup macros. 16 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 16 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 16 years ago
Anoop Saldanha f35d9f0437 threading improvements. Replaced the use of slot(2/3) with varslot. Improve error handling in slot functions. Additional helper functions for thread creation 17 years ago
Victor Julien bab4b62376 Initial add of the files. 17 years ago