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Added socketpair.c as a replacement for 'pipe()' call for Windows.
This was needed to get semisync to work on Windows.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| /* socketpair.c | ||
| Copyright 2007, 2010 by Nathan C. Myers <ncm@cantrip.org> | ||
| Redistribution and use in source and binary forms, with or without modification, | ||
| are permitted provided that the following conditions are met: | ||
| Redistributions of source code must retain the above copyright notice, this | ||
| list of conditions and the following disclaimer. | ||
| Redistributions in binary form must reproduce the above copyright notice, | ||
| this list of conditions and the following disclaimer in the documentation | ||
| and/or other materials provided with the distribution. | ||
| The name of the author must not be used to endorse or promote products | ||
| derived from this software without specific prior written permission. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
| FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
|
|
||
| /* Changes: | ||
| * 2023-12-25 Addopted for MariaDB usage | ||
| * 2014-02-12: merge David Woodhouse, Ger Hobbelt improvements | ||
| * git.infradead.org/users/dwmw2/openconnect.git/commitdiff/bdeefa54 | ||
| * github.com/GerHobbelt/selectable-socketpair | ||
| * always init the socks[] to -1/INVALID_SOCKET on error, both on Win32/64 | ||
| * and UNIX/other platforms | ||
| * 2013-07-18: Change to BSD 3-clause license | ||
| * 2010-03-31: | ||
| * set addr to 127.0.0.1 because win32 getsockname does not always set it. | ||
| * 2010-02-25: | ||
| * set SO_REUSEADDR option to avoid leaking some windows resource. | ||
| * Windows System Error 10049, "Event ID 4226 TCP/IP has reached | ||
| * the security limit imposed on the number of concurrent TCP connect | ||
| * attempts." Bleah. | ||
| * 2007-04-25: | ||
| * preserve value of WSAGetLastError() on all error returns. | ||
| * 2007-04-22: (Thanks to Matthew Gregan <kinetik@flim.org>) | ||
| * s/EINVAL/WSAEINVAL/ fix trivial compile failure | ||
| * s/socket/WSASocket/ enable creation of sockets suitable as stdin/stdout | ||
| * of a child process. | ||
| * add argument make_overlapped | ||
| */ | ||
|
|
||
| #include <my_global.h> | ||
| #ifdef _WIN32 | ||
| #include <ws2tcpip.h> /* socklen_t, et al (MSVC20xx) */ | ||
| #include <windows.h> | ||
| #include <io.h> | ||
| #include "socketpair.h" | ||
|
|
||
| #define safe_errno (errno != 0) ? errno : -1 | ||
|
|
||
| /** | ||
| create_socketpair() | ||
| @param socks[2] Will be filled by 2 SOCKET entries (similar to pipe()) | ||
| socks[0] for reading | ||
| socks[1] for writing | ||
| @return: 0 ok | ||
| # System error code. -1 if unknown | ||
| */ | ||
|
|
||
| int create_socketpair(SOCKET socks[2]) | ||
| { | ||
| union | ||
| { | ||
| struct sockaddr_in inaddr; | ||
| struct sockaddr addr; | ||
| } a; | ||
| SOCKET listener= -1; | ||
| int reuse = 1; | ||
| int last_error; | ||
| socklen_t addrlen = sizeof(a.inaddr); | ||
|
|
||
| socks[0]= socks[1]= -1; | ||
|
|
||
| if ((listener= socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) | ||
| return safe_errno; | ||
|
|
||
| memset(&a, 0, sizeof(a)); | ||
| a.inaddr.sin_family = AF_INET; | ||
| a.inaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); | ||
| a.inaddr.sin_port = 0; | ||
|
|
||
| for (;;) /* Avoid using goto */ | ||
| { | ||
| if (setsockopt(listener, SOL_SOCKET, SO_REUSEADDR, | ||
| (char*) &reuse, (socklen_t) sizeof(reuse)) == -1) | ||
| break; | ||
| if (bind(listener, &a.addr, sizeof(a.inaddr)) == SOCKET_ERROR) | ||
| break; | ||
|
|
||
| memset(&a, 0, sizeof(a)); | ||
| if (getsockname(listener, &a.addr, &addrlen) == SOCKET_ERROR) | ||
| break; | ||
| // win32 getsockname may only set the port number, p=0.0005. | ||
| // ( http://msdn.microsoft.com/library/ms738543.aspx ): | ||
| a.inaddr.sin_addr.s_addr= htonl(INADDR_LOOPBACK); | ||
| a.inaddr.sin_family= AF_INET; | ||
|
|
||
| if (listen(listener, 1) == SOCKET_ERROR) | ||
| break; | ||
|
|
||
| socks[1]= socket(AF_INET, SOCK_STREAM, 0); | ||
| if (socks[1] == -1) | ||
| break; | ||
| if (connect(socks[1], &a.addr, sizeof(a.inaddr)) == SOCKET_ERROR) | ||
| break; | ||
|
|
||
| socks[0]= accept(listener, NULL, NULL); | ||
| if (socks[0] == -1) | ||
| break; | ||
|
|
||
| closesocket(listener); | ||
|
|
||
| { | ||
| /* Make both sockets non blocking */ | ||
| ulong arg= 1; | ||
| ioctlsocket(socks[0], FIONBIO,(void*) &arg); | ||
| ioctlsocket(socks[1], FIONBIO,(void*) &arg); | ||
| } | ||
| return 0; | ||
| } | ||
| /* Error handling */ | ||
| last_error= WSAGetLastError(); | ||
| if (listener != -1) | ||
| closesocket(listener); | ||
| close_socketpair(socks); | ||
| WSASetLastError(last_error); | ||
|
|
||
| return last_error; | ||
| } | ||
|
|
||
| /* | ||
| Free socketpair | ||
| */ | ||
|
|
||
| void close_socketpair(SOCKET socks[2]) | ||
| { | ||
| if (socks[0] != -1) | ||
| closesocket(socks[0]); | ||
| if (socks[1] != -1) | ||
| closesocket(socks[1]); | ||
| socks[0]= socks[1]= -1; | ||
| } | ||
|
|
||
| #endif /*_WIN32 */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| /* Copyright (c) 2023, MariaDB Plc | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; version 2 of the License. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program; if not, write to the Free Software | ||
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ | ||
|
|
||
| #ifdef _WIN32 | ||
| C_MODE_START | ||
| int create_socketpair(SOCKET socks[2]); | ||
| void close_socketpair(SOCKET socks[2]); | ||
| C_MODE_END | ||
| #endif /* _WIN32 */ |