Commit Graph

45 Commits

Author SHA1 Message Date
Daniel Stenberg
32766cb4db
select: convert Curl_select() to private static function
The old function should not be used anywhere anymore (the only remaining
gskit use has to be fixed to instead use Curl_poll or none at all).

The static function version is now called our_select() and is only built
if necessary.

Closes #6531
2021-01-27 09:05:31 +01:00
Daniel Stenberg
4d2f800677
curl.se: new home
Closes #6172
2020-11-04 23:59:47 +01:00
Marc Hoersken
0f7c332f9f
select.h: make socket validation macros test for INVALID_SOCKET
With Winsock the valid range is [0..INVALID_SOCKET-1] according to
https://docs.microsoft.com/en-us/windows/win32/winsock/socket-data-type-2

Reviewed-by: Jay Satiro
Reviewed-by: Marcel Raad
Reviewed-by: Daniel Stenberg

Closes #5760
2020-08-25 11:17:06 +02:00
Marc Hoersken
4a8f459837
select: use timediff_t instead of time_t and int for timeout_ms
Make all functions in select.[ch] take timeout_ms as timediff_t
which should always be large enough and signed on all platforms
to take all possible timeout values and avoid type conversions.

Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg

Replaces #5107 and partially #5262
Related to #5240 and #5286
Closes #5343
2020-05-30 10:20:40 +02:00
Daniel Stenberg
66b0775763
checksrc: enhance the ASTERISKSPACE and update code accordingly
Fine: "struct hello *world"

Not fine: "struct hello* world" (and variations)

Closes #5386
2020-05-14 00:02:05 +02:00
Daniel Stenberg
a96c7529eb
select: make Curl_socket_check take timediff_t timeout
Coverity found CID 1461718:

Integer handling issues (CONSTANT_EXPRESSION_RESULT) "timeout_ms >
9223372036854775807L" is always false regardless of the values of its
operands. This occurs as the logical second operand of "||".

Closes #5240
2020-04-23 15:57:23 +02:00
Daniel Stenberg
88436786c8
select: remove typecast from SOCKET_WRITABLE/READABLE macros
So that they don't hide conversions-by-mistake

Reviewed-by: Jay Satiro
Closes #5190
2020-04-07 00:09:34 +02:00
Marc Hoersken
c52b342051
select: move duplicate select preparation code into Curl_select
Reviewed by Daniel Stenberg
Reviewed by Marcel Raad
Closes #5078
2020-03-15 11:08:27 +01:00
Daniel Stenberg
1ad49feb71
global_init: assume the EINTR bit by default
- Removed from global_init since it isn't thread-safe. The symbol will
  still remain to not break compiles, it just won't have any effect going
  forward.

- make the internals NOT loop on EINTR (the opposite from previously).
  It only risks returning from the select/poll/wait functions early, and that
  should be risk-free.

Closes #4840
2020-01-26 18:27:18 +01:00
Jay Satiro
9c1806ae46 build: Disable Visual Studio warning "conditional expression is constant"
- Disable warning C4127 "conditional expression is constant" globally
  in curl_setup.h for when building with Microsoft's compiler.

This mainly affects building with the Visual Studio project files found
in the projects dir.

Prior to this change the cmake and winbuild build systems already
disabled 4127 globally for when building with Microsoft's compiler.
Also, 4127 was already disabled for all build systems in the limited
circumstance of the WHILE_FALSE macro which disabled the warning
specifically for while(0). This commit removes the WHILE_FALSE macro and
all other cruft in favor of disabling globally in curl_setup.

Background:

We have various macros that cause 0 or 1 to be evaluated, which would
cause warning C4127 in Visual Studio. For example this causes it:

    #define Curl_resolver_asynch() 1

Full behavior is not clearly defined and inconsistent across versions.
However it is documented that since VS 2015 Update 3 Microsoft has
addressed this somewhat but not entirely, not warning on while(true) for
example.

Prior to this change some C4127 warnings occurred when I built with
Visual Studio using the generated projects in the projects dir.

Closes https://github.com/curl/curl/pull/4658
2019-12-01 19:01:02 -05:00
Daniel Stenberg
b1616dad8f
timediff: make it 64 bit (if possible) even with 32 bit time_t
... to make it hold microseconds too.

Fixes #4165
Closes #4168
2019-08-01 07:43:24 +02:00
Viktor Szakats
b801b453af whitespace fixes
- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few indentations/line continuations
  in manual examples

Closes https://github.com/curl/curl/pull/3037
2018-09-23 22:24:02 +00:00
Daniel Stenberg
7e21e5fd0c select.h: avoid macro redefinition harder
... by checking the POLLIN define, as the header file checks don't work
on Windows.
2017-07-05 13:28:28 +02:00
Marcel Raad
aa573c3c55
poll: prefer <poll.h> over <sys/poll.h>
The POSIX standard location is <poll.h>. Using <sys/poll.h> results in
warning spam when using the musl standard library.

Closes https://github.com/curl/curl/pull/1406
2017-04-11 08:31:38 +02:00
Marcel Raad
21aa32d30d lib: fix compiler warnings after de4de4e3c7
Visual C++ now complains about implicitly casting time_t (64-bit) to
long (32-bit). Fix this by changing some variables from long to time_t,
or explicitly casting to long where the public interface would be
affected.

Closes #1131
2016-11-18 10:11:55 +01:00
Daniel Stenberg
8a6e89a9eb select: switch to macros in uppercase
Curl_select_ready() was the former API that was replaced with
Curl_select_check() a while back and the former arg setup was provided
with a define (in order to leave existing code unmodified).

Now we instead offer SOCKET_READABLE and SOCKET_WRITABLE for the most
common shortcuts where only one socket is checked. They're also more
visibly macros.
2016-10-18 11:05:45 +02:00
Daniel Stenberg
4af40b3646 URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
Zdenek Pavlas
57ccdfa8d2 curl_global_init: accept the CURL_GLOBAL_ACK_EINTR flag
The flag can be used in pycurl-based applications where using the multi
interface would not be acceptable because of the performance lost caused
by implementing the select() loop in python.

Bug: http://curl.haxx.se/bug/view.cgi?id=1168
Downstream Bug: https://bugzilla.redhat.com/919127
2013-03-12 10:58:20 +01:00
Yang Tse
5a053ffe80 build: fix circular header inclusion with other packages
This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]

Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]

----------------------------------------

1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
    up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
    this single inclusion guard is enough to ensure that inclusion of
    lib/setup_once.h done from lib/setup.h is only done once.

    Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
    protect inclusion of setup_once.h even after commit ec691ca3, this
    was to avoid a circular header inclusion triggered when building a
    c-ares enabled version with c-ares sources available which also has
    a setup_once.h header. Commit ec691ca3 exposes the real nature of
    __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
    foreign to libcurl belonging to c-ares's setup_once.h

    The renaming this commit does, fixes the circular header inclusion,
    and as such removes the need and usage of a header inclusion guard
    foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.

2 - Due to the circular interdependency of old lib/setup_once.h and the
    c-ares setup_once.h header, old file lib/setup_once.h has carried
    back from 2006 up to now days an alarming and prominent notice about
    the need of keeping libcurl's and c-ares's setup_once.h in sync.

    Given that this commit fixes the circular interdependency, the need
    and presence of mentioned notice is removed.

    All mentioned interdependencies come back from now old days when
    the c-ares project lived inside a curl subdirectory. This commit
    removes last traces of such fact.
2013-01-09 00:49:50 +01:00
Yang Tse
4a5aa6682d Revert changes relative to lib/*.[ch] recent renaming
This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

  f871de0... build: make use of 76 lib/*.h renamed files
  ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

  c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

  13606bb... build: make use of 93 lib/*.c renamed files
  5b6e792... build: rename 93 lib/*.c files
  7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

  http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

  http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

  http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

  lib/curl_imap.h
  lib/curl_smtp.h
2013-01-06 18:20:27 +01:00
Yang Tse
ffd8e127e7 build: rename 76 lib/*.h files
76 private header files renamed to use our standard naming scheme.

This commit only does the file renaming.

----------------------------------------

  renamed:    amigaos.h -> curl_amigaos.h
  renamed:    arpa_telnet.h -> curl_arpa_telnet.h
  renamed:    asyn.h -> curl_asyn.h
  renamed:    axtls.h -> curl_axtls.h
  renamed:    bundles.h -> curl_bundles.h
  renamed:    conncache.h -> curl_conncache.h
  renamed:    connect.h -> curl_connect.h
  renamed:    content_encoding.h -> curl_content_encoding.h
  renamed:    cookie.h -> curl_cookie.h
  renamed:    cyassl.h -> curl_cyassl.h
  renamed:    dict.h -> curl_dict.h
  renamed:    easyif.h -> curl_easyif.h
  renamed:    escape.h -> curl_escape.h
  renamed:    file.h -> curl_file.h
  renamed:    fileinfo.h -> curl_fileinfo.h
  renamed:    formdata.h -> curl_formdata.h
  renamed:    ftp.h -> curl_ftp.h
  renamed:    ftplistparser.h -> curl_ftplistparser.h
  renamed:    getinfo.h -> curl_getinfo.h
  renamed:    gopher.h -> curl_gopher.h
  renamed:    gtls.h -> curl_gtls.h
  renamed:    hash.h -> curl_hash.h
  renamed:    hostcheck.h -> curl_hostcheck.h
  renamed:    hostip.h -> curl_hostip.h
  renamed:    http.h -> curl_http.h
  renamed:    http_chunks.h -> curl_http_chunks.h
  renamed:    http_digest.h -> curl_http_digest.h
  renamed:    http_negotiate.h -> curl_http_negotiate.h
  renamed:    http_proxy.h -> curl_http_proxy.h
  renamed:    if2ip.h -> curl_if2ip.h
  renamed:    imap.h -> curl_imap.h
  renamed:    inet_ntop.h -> curl_inet_ntop.h
  renamed:    inet_pton.h -> curl_inet_pton.h
  renamed:    krb4.h -> curl_krb4.h
  renamed:    llist.h -> curl_llist.h
  renamed:    memdebug.h -> curl_memdebug.h
  renamed:    multiif.h -> curl_multiif.h
  renamed:    netrc.h -> curl_netrc.h
  renamed:    non-ascii.h -> curl_non-ascii.h
  renamed:    nonblock.h -> curl_nonblock.h
  renamed:    nssg.h -> curl_nssg.h
  renamed:    parsedate.h -> curl_parsedate.h
  renamed:    pingpong.h -> curl_pingpong.h
  renamed:    polarssl.h -> curl_polarssl.h
  renamed:    pop3.h -> curl_pop3.h
  renamed:    progress.h -> curl_progress.h
  renamed:    qssl.h -> curl_qssl.h
  renamed:    rawstr.h -> curl_rawstr.h
  renamed:    rtsp.h -> curl_rtsp.h
  renamed:    select.h -> curl_select.h
  renamed:    sendf.h -> curl_sendf.h
  renamed:    setup.h -> curl_setup.h
  renamed:    setup_once.h -> curl_setup_once.h
  renamed:    share.h -> curl_share.h
  renamed:    slist.h -> curl_slist.h
  renamed:    smtp.h -> curl_smtp.h
  renamed:    sockaddr.h -> curl_sockaddr.h
  renamed:    socks.h -> curl_socks.h
  renamed:    speedcheck.h -> curl_speedcheck.h
  renamed:    splay.h -> curl_splay.h
  renamed:    ssh.h -> curl_ssh.h
  renamed:    sslgen.h -> curl_sslgen.h
  renamed:    ssluse.h -> curl_ssluse.h
  renamed:    strdup.h -> curl_strdup.h
  renamed:    strequal.h -> curl_strequal.h
  renamed:    strerror.h -> curl_strerror.h
  renamed:    strtok.h -> curl_strtok.h
  renamed:    strtoofft.h -> curl_strtoofft.h
  renamed:    telnet.h -> curl_telnet.h
  renamed:    tftp.h -> curl_tftp.h
  renamed:    timeval.h -> curl_timeval.h
  renamed:    transfer.h -> curl_transfer.h
  renamed:    url.h -> curl_url.h
  renamed:    urldata.h -> curl_urldata.h
  renamed:    warnless.h -> curl_warnless.h
  renamed:    wildcard.h -> curl_wildcard.h

----------------------------------------
2012-12-28 20:21:56 +01:00
Yang Tse
f871de0064 build: make use of 76 lib/*.h renamed files
76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.
2012-12-28 19:37:11 +01:00
Yang Tse
ec691ca34b lib/*.h: use our standard naming scheme for header inclusion guards 2012-12-28 18:21:40 +01:00
Daniel Stenberg
8bad5f2a61 WSAPoll: disabled on all windows builds
Due to WSAPoll bugs, libcurl does not work as intended. When the cURL
library is used to setup a connection to an incorrect port, normally the
result is CURLE_COULDNT_CONNECT, /* 7 */, but due to the bug in WSAPoll,
the result now is CURLE_OPERATION_TIMEDOUT, /* 28 - the timeout time was
reached */.

On August 1, Jan Koen Annot opened a case for this to Microsoft Premier
Online (https://premier.microsoft.com/).  The support engineer handling
the case wrote that the case description is quite clear.  He will try to
reproduce the issue and then proceed with troubleshooting it.

Reported by: Jan Koen Annot
Bug: http://curl.haxx.se/mail/lib-2012-07/0310.html
2012-08-07 20:47:31 +02:00
Daniel Stenberg
5527417afa sockets: new Curl_socket_check() can wait for 3 sockets
This offers an alternative to the existing Curl_socket_ready() API which
only checks one socket for read and one for write.
2011-12-20 20:30:02 +01:00
Daniel Stenberg
2d6796aac5 curl_multi_fdset: avoid FD_SET out of bounds
If a socket is larger than FD_SETSIZE, avoid using FD_SET() on the
platforms where this is possible.

Bug: http://curl.haxx.se/bug/view.cgi?id=3413274
Reported by: Tim Starling
2011-09-25 17:34:12 +02:00
Dan Fandrich
9779553221 Give the NTLM SSO helper a moment to cleanly shut down if needed 2011-07-28 12:42:39 -07:00
Daniel Stenberg
4f170ee8f9 Curl_socket_ready: make timeout a 'long'
It was mostly typecasted to int all over the code so switching to long
instead all over should be a net gain.
2011-06-04 21:19:14 +02:00
Daniel Stenberg
2309b4e330 remove the CVSish $Id$ lines 2010-03-24 11:02:54 +01:00
Yang Tse
08ac9866e0 Peter Lamberg filed bug report #2015126: "poll gives WSAEINVAL when POLLPRI
is set in fdset.events" (http://curl.haxx.se/bug/view.cgi?id=2015126) which
exactly pinpointed the problem only triggered on Windows Vista, provided
reference to docs and also a fix. There is much work behind Peter Lamberg's
excellent bug report. Thank You!
2008-07-10 18:01:44 +00:00
Yang Tse
bdb2beb8e4 check availability of poll.h header at configuration time, and include
it when sys/poll.h is unavailable
2008-01-22 14:52:54 +00:00
Yang Tse
9a39839a43 Some versions of winsock2.h have pollfd struct and constants 2007-11-10 04:23:15 +00:00
Daniel Stenberg
dc3b3c6916 Make our own definitions of the POLL* defiens and the pollfd struct only get
done if the sys/poll.h file is missing, as we have seen machines with poll()
present but without the header file and machines that don't get HAVE_POLL
defined but that do have the sys/poll.h header file...
2007-06-14 11:21:48 +00:00
Daniel Stenberg
4c663ba9a8 When transferring 500 downloads in parallel with a c-ares enabled build only
to find that it crashed miserably, and this was due to some select()isms left
in the code. This was due to API restrictions in c-ares 1.3.x, but with the
upcoming c-ares 1.4.0 this is no longer the case so now libcurl runs much
better with c-ares and the multi interface with > 1024 file descriptors in
use.
2007-05-31 11:34:32 +00:00
Daniel Stenberg
76627b322e - Robert Iakobashvil added curl_multi_socket_action() to libcurl, which is a
function that deprecates the curl_multi_socket() function. Using the new
  function the application tell libcurl what action that was found in the
  socket that it passes in. This gives a significant performance boost as it
  allows libcurl to avoid a call to poll()/select() for every call to
  curl_multi_socket*().
2007-04-16 16:34:08 +00:00
Yang Tse
eed47311f8 New Internal wrapper function Curl_select() around select (2), it
uses poll() when a fine poll() is available, so now libcurl can be
built without select() support at all if a fine poll() is available.
2007-03-27 18:15:26 +00:00
Yang Tse
fba4cd0e62 Internal function Curl_select() renamed to Curl_socket_ready() 2007-03-26 23:23:46 +00:00
Yang Tse
0e2d3b7b6c Code refactoring, extracting a new function wait_ms() from Curl_select and
Curl_poll() which is called whenever not a single valid file descriptor is
passed to these functions.

Improve readibility using a poll() macro to replace WSApoll().
2007-03-18 04:51:40 +00:00
Daniel Stenberg
c8cd13337e reverted the pselect patch => http://curl.haxx.se/mail/lib-2007-03/0100.html 2007-03-11 09:11:29 +00:00
Daniel Stenberg
dbaf4f9361 - Bryan Henderson introduces two things:
1) the progress callback gets called more frequently (at times)
  2) libcurl *might* call the callback when it receives a signal
2007-03-10 12:11:21 +00:00
Daniel Stenberg
1fa3a5cce9 Cory Nelson made libcurl use the WSAPoll() function if built for Windows
Vista (_WIN32_WINNT >= 0x0600)
2006-09-24 10:41:00 +00:00
Daniel Stenberg
5a4b43848a First commit of David McCreedy's EBCDIC and TPF changes. 2006-04-07 21:50:47 +00:00
Gisle Vanem
539e34b5df Suppress signed vs. unsigned warnings on Win32 2004-11-19 14:38:02 +00:00
Daniel Stenberg
765683403f Curl_select() now uses curl_socket_t on socket arguments 2004-11-19 14:03:19 +00:00
Daniel Stenberg
1a05a90f1c David Phillips' FD_SETSIZE fix 2004-11-19 08:52:33 +00:00