35d8fb0501
- ares__send_query() now varies the retry timeout pseudo-randomly to avoid
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packet storms when several queries were started at the same time.
2009-01-13 11:51:04 +00:00
e5b0533dab
Gregor Jasny provided the patch that introduces ares_set_socket_callback(),
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and I edited it to also get duped by ares_dup().
2008-12-04 12:53:03 +00:00
00142d8443
Only set TCP_NODELAY when it exists
2008-11-28 22:07:40 +00:00
17d2a464ad
Refactor configure script detection of functions used to set sockets into
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non-blocking mode, and decouple function detection from function capability.
2008-11-13 18:56:55 +00:00
3e3d10824f
- Carlo Contavalli added support for the glibc "rotate" option, as documented
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in man resolv.conf:
causes round robin selection of nameservers from among those listed. This
has the effect of spreading the query load among all listed servers, rather
than having all clients try the first listed server first every time.
You can enable it with ARES_OPT_ROTATE
2008-11-01 18:35:19 +00:00
3f2de3d101
Charles Hardin patch:
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- handles the EINPROGRESS for UDP connects
- uses closesocket instead of close on some paths that were noticed
2008-10-21 01:58:23 +00:00
39de6c784c
adjust inclusion of "nameser.h"
2008-09-17 01:02:57 +00:00
2a6148716c
Functionality only possible if recvfrom() is available.
2008-08-26 03:08:27 +00:00
423a18cecc
Brad House's validation that DNS response address matches the request address
2008-08-25 03:34:50 +00:00
e30bbfd85d
fix compiler warning
2008-07-10 08:21:48 +00:00
164a985115
millisecond resolution support followup
2008-05-15 22:57:33 +00:00
76c251513e
- Introducing millisecond resolution support for the timeout option. See
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ares_init_options()'s ARES_OPT_TIMEOUTMS.
2008-05-13 20:48:48 +00:00
6df5dddd90
check for strings.h in configure and use it for the strcasecmp() proto
2008-05-08 22:11:38 +00:00
8f0bef2fa0
Renamed internal function to avoid a variable shadowing it
2007-10-18 17:17:18 +00:00
59136ece19
'FD_CLOXEC' is meaningless on MSDOS/Watt-32.
2007-10-08 14:38:51 +00:00
91b38857ef
Removed a piece of redundant code (process_answer already takes care of it).
2007-10-04 08:12:12 +00:00
38dd0ede9d
Fix compiler warning
2007-09-30 19:43:23 +00:00
62c264bcdb
check availability of <netinet/tcp.h>
2007-09-30 02:12:11 +00:00
84fcff79f4
Use ISDIGIT instead of isdigit; fixes a gcc warning.
2007-09-29 21:57:05 +00:00
23f5d145ec
Previously, processing a large batch of timeouts was O(n^2) in the number of
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outstanding queries, and processing a DNS response packet was O(n) in the
number of outstanding queries. To speed things up in Google, we added a few circular,
doubly-linked lists of queries that are hash-bucketed based on
the attributes we care about, so most important operations are now O(1).
It might be that the number of buckets are higher than most people would need,
but on a quick calculation it should only be 100kB or so even on a 64-bit
system, so I've let it stay as-is.
2007-09-29 18:18:47 +00:00
7a7f490efa
Fix compiler warning in setsockopt().
2007-09-29 14:34:59 +00:00
95c15fce0c
TCP queries can time out too, not just UDP queries. (Patch from the Google tree.)
2007-09-29 14:25:14 +00:00
c788efffd4
Read and process as many packets as possible in read_udp_packets, to avoid having to run the entire event loop once per packet. (Patch from the Google tree.)
2007-09-29 14:21:47 +00:00
c1a475e708
There are two different places in write_tcp_data() that advance the send_queue; however, they are slightly different and only the first one properly uses a while loop. Consolidate both into a single function that DTTR. (Patch from the Google tree.)
2007-09-29 14:09:14 +00:00
63ac6156aa
Forgot to include a few hunks from ares_process.c earlier. Fixing now.
2007-09-28 15:51:00 +00:00
08a70d117c
Support a few more socket options, and refactor the option setting a bit. (Patch from the Google tree.)
2007-09-28 15:15:39 +00:00
6ce589c3ee
Make the query callbacks return the number of timeouts that happened during the execution of a query, and update documentation accordingly. (Patch from the Google tree.)
2007-09-28 14:46:51 +00:00
d426c20c0a
Three fixes in one commit (sorry): a) Take care of the tcpbuf if it ends while queued for transmission, note broken servers and close them in the main loop, and store TCP socket generation number in order not to send the same query twice over the same socket.
2007-09-28 14:28:14 +00:00
54ca7d8cb2
Don't skip a server if it's the only one. (Bugfix from the Google tree.)
2007-09-28 14:26:11 +00:00
015fc6aa17
wrong, revert the previous "fix" and instead check that the fd_set pointer
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is non-NULL before we FD_CLR
2007-09-27 12:04:56 +00:00
a739b9bc45
eek, fix the conditions to return on either problem instead of requiring
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both to occur
2007-09-27 12:02:15 +00:00
0f4664d27f
Steinar H. Gunderson fixed: Correctly clear sockets from the fd_set on in
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several functions (write_tcp_data, read_tcp_data, read_udp_packets) so that
if it fails and the socket is closed the following code doesn't try to use
the file descriptor.
2007-09-22 21:23:10 +00:00
0f89a2e639
Steinar H. Gunderson modified c-ares to now also do to DNS retries even when
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TCP is used since there are several edge cases where it still makes sense.
2007-09-22 21:04:16 +00:00
88ce03e945
Vlad Dinulescu fixed two outstanding valgrind reports
2007-07-14 13:08:50 +00:00
b084dc8760
Brad House fixed VS2005 compiler warnings due to time_t being 64bit.
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He also made recent Microsoft compilers use _strdup() instead of strdup().
2007-06-02 19:48:29 +00:00
670273968c
added ares_process_fd() to allow applications to ask for processing on
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specific sockets and thus avoiding select() and associated functions/macros.
This function will be used by upcoming libcurl releases for this very
reason. It also made me export the ares_socket_t type in the public ares.h
header file, since ares_process_fd() uses that type for two of the arguments.
2007-05-30 12:58:47 +00:00
ee1235a7cd
Removed inclusion of <sys/types.h> in .c-files
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since it's already included through "setup.h".
2007-02-26 04:33:19 +00:00
69565afab0
Check for stdbool.h at configuration stage, and include it if available.
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Check for lowercase 'bool' type at configuration stage. If not available
provide a suitable replacement with a type definition of 'unsigned char'
in setup_once.h
Move definitions of TRUE and FALSE to setup_once.h
2007-02-22 02:51:54 +00:00
059b57677c
use macros ERRNO, SET_ERRNO(), SOCKERRNO and SET_SOCKERRNO() for errno handling
2007-02-16 15:04:44 +00:00
5446ed4733
Use correct 3rd argument for ioctlsocket() under Watt-32.
2007-02-04 13:34:34 +00:00
d2dd3d7e16
compiler warning fix
2007-02-01 15:36:56 +00:00
5450db9151
Compiler warning fix
2006-10-25 10:25:43 +00:00
5df4be1165
Check for USE_WINSOCK instead of WIN32 where the check was done
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to verify winsock API availability.
2006-10-18 21:05:40 +00:00
7c621cfbdf
Brad Spencer did
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o made ares_version.h use extern "C" for c++ compilers
o fixed compiler warnings in ares_getnameinfo.c
o fixed a buffer position init for TCP reads
2006-08-29 15:17:47 +00:00
aa791ee5cf
Fix compiler warnings.
2006-07-29 09:15:03 +00:00
2c81bfead5
Replace send() and recv() with swrite() and sread() macros.
2006-07-28 18:01:23 +00:00
93858efe73
2nd try adding CVS id.
2006-07-22 15:37:10 +00:00
bd8d4637a3
Fix compiler warning
2006-07-14 11:04:19 +00:00
4524618bf2
Handle EAGAIN/EWOULDBLOCK readiness errors, which can occur for both TCP and
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UDP even when a poll(2) or select(2) suggest otherwise.
2006-06-19 01:18:05 +00:00
dd06c60ada
Nick Mathewson added the ARES_OPT_SOCK_STATE_CB option that when set makes
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c-ares call a callback on socket state changes. A better way than the
ares_getsock() to get full control over the socket state.
2006-05-03 06:11:44 +00:00
Phil Blundell