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76cd2b70
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2009-11-27T16:44:47
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Stop passing EVTHREAD_READ and EVTHREAD_WRITE to non-rw locks.
Previously, our default lock model kind of assumed that every lock was
potentially a read-write lock. This was a poor choice, since
read-write locks are far more expensive than regular locks, and so the
lock API should only use them when we can actually take advantage of
them. Neither our pthreads or win32 lock implementation provided rw
locks.
Now that we have a way (not currently used!) to indicate that we
really want a read-write lock, we shouldn't actually say "lock this
for reading" or "lock this for writing" unless we mean it.
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0cd3bb9f
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2009-11-27T17:22:19
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Improved optional lock debugging.
There were a couple of places in the code where we manually kept lock
counts to make sure we never accessed resources without holding a
lock, and that we never released a lock we didn't have. The
lock-debugging code already puts counts on _every_ lock when lock
debugging is enabled, so there is no need to keep these counts around
otherwise. This patch rewrites the ASSERT_FOO_LOCKED macros to all
use a common EVLOCK_ASSERT_LOCKED().
We also teach the lock debugging code to keep track of who exactly
holds each lock, so that EVLOCK_ASSERT_LOCKED() means "locked by this
thread."
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d7d1f1da
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2009-11-17T20:31:09
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Move responsibility for IOCP callback into bufferevent_async.
This patch from Chris Davis saves some callback depth, and adds proper
ref-counting to bufferevents when there's a deferred evbuffer callback
inflight. It could use a couple more comments to really nail down what
its invariants are.
svn:r1543
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2e36dbe1
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2009-10-26T20:00:43
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Use EVUTIL_ASSERT() consistently instead of assert.
svn:r1464
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b812563a
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2009-10-16T13:20:16
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Add a note that we should change previous_to_last to last_with_space
svn:r1447
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e3fd294a
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2009-10-16T13:19:57
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Spelling fixes in comments and strings.
svn:r1445
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b06b2649
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2009-07-26T01:29:39
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Make "deferred callback queue" independent of event_base.
This way, we can more easily have an IOCP bufferevent implementation
that does not need an event_base at all. Woot.
svn:r1381
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0b22ca19
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2009-05-22T19:11:48
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Use ev_ssize_t in place of ssize_t *everywhere*.
svn:r1309
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8997f234
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2009-05-21T20:59:00
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Use the native "struct iovec" as our "struct evbuffer_iovec" when available, so we do not need to copy more pointers than necessary.
svn:r1299
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23243b8a
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2009-05-19T21:39:35
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Replace reserve/commit with new iovec-based interface. Add a new evbuffer_peek.
svn:r1296
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dc4c7b95
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2009-05-15T22:44:18
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Change the interface of evbuffer_add_reference: give the cleanup function more info.
svn:r1294
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e865eb93
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2009-05-01T00:54:14
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More msvc build tweaks.
svn:r1262
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838d0a81
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2009-04-17T06:55:08
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Document many internal functions and pieces of code.
svn:r1181
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93d4f884
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2009-04-14T20:11:10
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Make buffer iocp stuff compile happily
svn:r1174
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9f1a94ec
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2009-04-13T03:06:47
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add pin/unpin functions, and a deref-and-free pair.
svn:r1165
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dcda7915
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2009-04-13T03:06:27
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Add a reference count to evbuffers.
svn:r1164
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829b52b6
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2009-04-13T03:05:46
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Refactor the code that sets up iovecs for reading into its own function. iocp needs this.
svn:r1162
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b29b875d
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2009-04-10T20:43:08
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Facility to make evbuffers get their callbacks deferred.
svn:r1154
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747331d1
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2009-04-08T03:04:39
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Add freeze support to evbuffers.
From the documentation:
Prevent calls that modify an evbuffer from succeeding. A buffer may
frozen at the front, at the back, or at both the front and the back.
If the front of a buffer is frozen, operations that drain data from
the front of the buffer, or that prepend data to the buffer, will
fail until it is unfrozen. If the back a buffer is frozen, operations
that append data from the buffer will fail until it is unfrozen.
We'll use this to ensure correctness on an evbuffer when we're waiting
for an overlapped IO call to finish.
svn:r1143
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d9086fc0
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2009-04-08T03:03:59
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Add a new facility to "pin" the memory in an evbuffer chain.
For overlapped IO (and possibly other stuff) we need to be able to
label an evbuffer_chain as "pinned", meaning that every byte in it
must remain at the same address as it is now until it unpinned. This
differs from being "immutable": it is okay to add data to the end
of a pinned chain, so long as existing data is not moved.
svn:r1142
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60e0d59b
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2009-04-05T02:44:17
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Add locking to evbuffers.
svn:r1134
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f1b1bad4
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2009-04-03T14:27:03
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Make the new evbuffer callbacks use a new struct-based interface.
The old interface would fail pretty hard when we had to batch up
multiple adds and drains in a single call.
svn:r1131
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98b7046b
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2009-02-10T19:38:43
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A few more comments on evbuffer-internal structures.
svn:r1106
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8d3a10f8
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2009-02-01T01:43:58
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Support temporarily suspending an evbuffer callback. This is different from disabling the callback, since we want to process changes, but not just yet.
svn:r1091
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b85b710c
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2009-01-27T22:34:36
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Update copyright statements to reflect the facts that:
a) this is 2009
b) niels and nick have been comaintainers for a while
c) saying "all rights reserved" when you then go on to explicitly
disclaim some rights is sheer cargo-cultism.
svn:r1065
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8889a770
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2009-01-27T22:30:46
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Replace all use of config.h with event-config.h.
svn:r1064
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fdf69493
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2009-01-27T06:05:38
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sendfile/mmap and memory reference implementation for evbuffers
svn:r1057
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81dd04a7
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2009-01-23T18:04:34
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Add a "flags" field to evbuffer callbacks.
For now, there is just one: enabled. This lets us avoid lots of
mallocs/frees/tailq-manipulations just to turn a callback on and off.
The revised bufferevent code wants this.
svn:r1047
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de7f7a84
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2009-01-23T18:03:45
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Remove in_callbacks check: allow full recursion in evbuffer callbacks. If you get yourself in an infinite loop, that's not our fault. Note this in the docs. Also reindent some docs now that my tabs match Niels's.
svn:r1046
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c735f2b4
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2009-01-23T01:11:13
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Code to allow multiple callbacks per evbuffer.
svn:r1042
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6d3ed065
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2009-01-14T14:58:48
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Simplify evbuffer_write logic: combine nearly all of WSASend and writev cases.
svn:r1004
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3ca22aa8
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2008-05-15T03:05:10
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r19739@catbus: nickm | 2008-05-14 23:05:03 -0400
Use our offsetof; do not rely on platform offsetof
svn:r825
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193c06a7
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2008-03-31T02:04:34
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fix a bug in which evbuffer_add_vfprintf would loop forever; avoid
fragmentation in evbuffer_expand by increasing the size of the last buffer
in the chain; as a result with have to keep track of the previous_to_last
chain; provide a evbuffer_validate() function in the regression test to
make sure that all evbuffer are internally consistent.
svn:r699
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0322ce0a
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2008-02-28T18:36:03
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r18486@catbus: nickm | 2008-02-28 13:35:53 -0500
Make offsetof into evutil_offsetof. Be a little more willing to call evbuffer_chain_align() from evbuffer_expand(). Clarify some docs, and add some XXX comments to note questionable areas.
svn:r677
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5c70ea4c
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2008-02-28T02:47:43
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improved code for evbuffer; avoids memcpy
svn:r674
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