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59 Commits

Author SHA1 Message Date
Steinar H. Gunderson
91b38857ef Removed a piece of redundant code (process_answer already takes care of it). 2007-10-04 08:12:12 +00:00
Yang Tse
38dd0ede9d Fix compiler warning 2007-09-30 19:43:23 +00:00
Yang Tse
62c264bcdb check availability of <netinet/tcp.h> 2007-09-30 02:12:11 +00:00
Steinar H. Gunderson
84fcff79f4 Use ISDIGIT instead of isdigit; fixes a gcc warning. 2007-09-29 21:57:05 +00:00
Steinar H. Gunderson
23f5d145ec Previously, processing a large batch of timeouts was O(n^2) in the number of 
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
Gisle Vanem
7a7f490efa Fix compiler warning in setsockopt(). 2007-09-29 14:34:59 +00:00
Steinar H. Gunderson
95c15fce0c TCP queries can time out too, not just UDP queries. (Patch from the Google tree.) 2007-09-29 14:25:14 +00:00
Steinar H. Gunderson
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
Steinar H. Gunderson
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
Steinar H. Gunderson
63ac6156aa Forgot to include a few hunks from ares_process.c earlier. Fixing now. 2007-09-28 15:51:00 +00:00
Steinar H. Gunderson
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
Steinar H. Gunderson
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
Steinar H. Gunderson
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
Steinar H. Gunderson
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
Daniel Stenberg
015fc6aa17 wrong, revert the previous "fix" and instead check that the fd_set pointer 
is non-NULL before we FD_CLR
 2007-09-27 12:04:56 +00:00
Daniel Stenberg
a739b9bc45 eek, fix the conditions to return on either problem instead of requiring 
both to occur
 2007-09-27 12:02:15 +00:00
Daniel Stenberg
0f4664d27f Steinar H. Gunderson fixed: Correctly clear sockets from the fd_set on in 
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
Daniel Stenberg
0f89a2e639 Steinar H. Gunderson modified c-ares to now also do to DNS retries even when 
TCP is used since there are several edge cases where it still makes sense.
 2007-09-22 21:04:16 +00:00
Daniel Stenberg
88ce03e945 Vlad Dinulescu fixed two outstanding valgrind reports 2007-07-14 13:08:50 +00:00
Daniel Stenberg
b084dc8760 Brad House fixed VS2005 compiler warnings due to time_t being 64bit. 
He also made recent Microsoft compilers use _strdup() instead of strdup().
 2007-06-02 19:48:29 +00:00
Daniel Stenberg
670273968c added ares_process_fd() to allow applications to ask for processing on 
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
Gisle Vanem
ee1235a7cd Removed inclusion of <sys/types.h> in .c-files 
since it's already included through "setup.h".
 2007-02-26 04:33:19 +00:00
Yang Tse
69565afab0 Check for stdbool.h at configuration stage, and include it if available. 
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
Yang Tse
059b57677c use macros ERRNO, SET_ERRNO(), SOCKERRNO and SET_SOCKERRNO() for errno handling 2007-02-16 15:04:44 +00:00
Gisle Vanem
5446ed4733 Use correct 3rd argument for ioctlsocket() under Watt-32. 2007-02-04 13:34:34 +00:00
Yang Tse
d2dd3d7e16 compiler warning fix 2007-02-01 15:36:56 +00:00
Yang Tse
5450db9151 Compiler warning fix 2006-10-25 10:25:43 +00:00
Yang Tse
5df4be1165 Check for USE_WINSOCK instead of WIN32 where the check was done 
to verify winsock API availability.
 2006-10-18 21:05:40 +00:00
Daniel Stenberg
7c621cfbdf Brad Spencer did 
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
Yang Tse
aa791ee5cf Fix compiler warnings. 2006-07-29 09:15:03 +00:00
Yang Tse
2c81bfead5 Replace send() and recv() with swrite() and sread() macros. 2006-07-28 18:01:23 +00:00
Gisle Vanem
93858efe73 2nd try adding CVS id. 2006-07-22 15:37:10 +00:00
Yang Tse
bd8d4637a3 Fix compiler warning 2006-07-14 11:04:19 +00:00
William Ahern
4524618bf2 Handle EAGAIN/EWOULDBLOCK readiness errors, which can occur for both TCP and 
UDP even when a poll(2) or select(2) suggest otherwise.
 2006-06-19 01:18:05 +00:00
Daniel Stenberg
dd06c60ada Nick Mathewson added the ARES_OPT_SOCK_STATE_CB option that when set makes 
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
Gisle Vanem
f1f32477e3 Changes for PellesC for Win32. It needs <unistd.h> for 'ssize_t'. Hence the 
rearrangement in ares_process.c.
 2005-12-20 20:48:38 +00:00
Yang Tse
4f69318e12 Fix compiler warning 2005-12-09 21:09:21 +00:00
Daniel Stenberg
b97e7fc730 read_tcp_data() fix to get the proper buffer pointer and size 2005-11-25 22:23:28 +00:00
Daniel Stenberg
fec632e948 Yang Tse: fixed compiler warnings 2005-11-25 22:14:53 +00:00
Gunter Knauf
8b571fbbb1 make ares compile again for NetWare. 2005-08-10 17:03:53 +00:00
Daniel Stenberg
40eb7d0d48 FIONBIO is in sys/ioctl.h on AIX 2005-06-03 07:39:18 +00:00
Daniel Stenberg
1dcb2b7e65 sigh, define TRUE if not already 2005-06-02 21:10:21 +00:00
Daniel Stenberg
5470b9aa73 William Ahern: 
Make UDP sockets non-blocking. I've confirmed that at least on Linux 2.4 a
  read event can come back from poll() on a valid SOCK_DGRAM socket but
  recv(2) will still block. This patch doesn't ignore EAGAIN in
  read_udp_packets(), though maybe it should. (This patch was edited by Daniel
  Stenberg and a new configure test was added (imported from curl's configure)
  to properly detect what non-blocking socket approach to use.)
 2005-06-02 11:58:04 +00:00
Daniel Stenberg
993600761f Tupone Alfredo fixed includes of arpa/nameser_compat.h to build fine on Mac OS 
X.
 2005-04-06 22:27:42 +00:00
Gisle Vanem
13d40e33a4 Prevent gcc warning. 2005-03-13 09:21:54 +00:00
Daniel Stenberg
39af394a1c removed tabs and trailing whitespace from source 2004-10-06 07:50:18 +00:00
Gisle Vanem
fa83a0573e No WSAGetLastError() on Watt-32/DOS 2004-08-20 14:07:11 +00:00
Gisle Vanem
b17e32baa7 Changes for Watt-32 on Windows. I've assumed Configure 
sets the required HAVE_xx defines for non-DOS/Win targets.
 2004-08-20 13:45:26 +00:00
Daniel Stenberg
26ffaa263b variable type fix 2004-07-29 07:24:39 +00:00
Daniel Stenberg
b3b2ba31f7 Gisle Vanem: 
Basically in loops like handle_errors(), 'query->next' was assigned a local
variable and then query was referenced after the memory was freed by
next_server(). I've changed that so next_server() and end_query() returns the
next query. So callers should use this ret-value.

The next problem was that 'server->tcp_buffer_pos' had a random value at entry
to 1st recv() (luckily causing Winsock to return ENOBUFS).

I've also added a ares_writev() for Windows to streamline the code
a bit more.
 2004-07-24 21:47:49 +00:00