File:  [ELWIX - Embedded LightWeight unIX -] / libaitio / src / sock.c
Revision 1.11.2.7: download - view: text, annotated - select for diffs - revision graph
Sun Dec 15 22:44:30 2013 UTC (10 years, 6 months ago) by misho
Branches: io6_7
Diff to: branchpoint 1.11: preferred, unified
add vacuum support

    1: /*************************************************************************
    2: * (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
    3: *  by Michael Pounov <misho@elwix.org>
    4: *
    5: * $Author: misho $
    6: * $Id: sock.c,v 1.11.2.7 2013/12/15 22:44:30 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: 
   48: 
   49: static void *
   50: io_closeClient(sched_task_t *task)
   51: {
   52: 	sock_cli_t *cli = (sock_cli_t*) TASK_ARG(task);
   53: 	sock_t *s = (sock_t*) cli->cli_parent;
   54: 	int stat;
   55: 
   56: 	pthread_mutex_lock(&s->sock_mtx);
   57: 	TAILQ_REMOVE(&s->sock_cli, cli, cli_node);
   58: 	pthread_mutex_unlock(&s->sock_mtx);
   59: 
   60: 	schedCancelby(s->sock_root, taskMAX, CRITERIA_ARG, cli, NULL);
   61: 
   62: 	if (*cli->cli_name)
   63: 		ioFreePTY(cli->cli_pty, cli->cli_name);
   64: 	if (s->sock_prog) {
   65: 		io_progDetach(s->sock_prog, cli->cli_pty);
   66: #if 0
   67: 		io_progCloseAt(s->sock_prog, cli->cli_pty);
   68: #endif
   69: 		cli->cli_pty ^= cli->cli_pty;
   70: 		io_progCheck(s->sock_prog, 42);
   71: 	}
   72: 
   73: 	if (s->sock_type == SOCK_STREAM) {
   74: 		shutdown(cli->cli_fd, SHUT_RDWR);
   75: 		close(cli->cli_fd);
   76: 	}
   77: 	AIT_FREE_VAL(&cli->cli_buf[1]);
   78: 	AIT_FREE_VAL(&cli->cli_buf[0]);
   79: 
   80: 	if (cli->cli_pid > 0) {
   81: 		kill(cli->cli_pid, SIGKILL);
   82: 		while (waitpid(cli->cli_pid, &stat, WNOHANG) > 0) {
   83: 			usleep(1000);
   84: 			kill(cli->cli_pid, SIGKILL);
   85: 		}
   86: 	}
   87: 
   88: 	e_free(cli);
   89: 	taskExit(task, NULL);
   90: }
   91: 
   92: static void *
   93: io_acceptClient(sched_task_t *task)
   94: {
   95: 	int c, rlen;
   96: 	sockaddr_t sa;
   97: 	socklen_t salen = sizeof sa.ss;
   98: 	sock_cli_t *cli = NULL;
   99: 	sock_t *s = (sock_t*) TASK_ARG(task);
  100: 
  101: 	if (s->sock_type == SOCK_STREAM) {
  102: 		if ((c = accept(TASK_FD(task), &sa.sa, &salen)) == -1) {
  103: 			LOGERR;
  104: 			goto end;
  105: 		}
  106: 	} else {
  107: 		if ((rlen = recvfrom(TASK_FD(task), 
  108: 						AIT_GET_BUF(&s->sock_buf), AIT_LEN(&s->sock_buf), 
  109: 						MSG_PEEK, &sa.sa, &salen)) == -1) {
  110: 			LOGERR;
  111: 			goto end;
  112: 		} else
  113: 			c = TASK_FD(task);
  114: 	}
  115: 
  116: 	cli = e_malloc(sizeof(sock_cli_t));
  117: 	if (!cli) {
  118: 		io_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
  119: 		if (s->sock_type == SOCK_STREAM)
  120: 			close(c);
  121: 		goto end;
  122: 	} else {
  123: 		memset(cli, 0, sizeof(sock_cli_t));
  124: 		pthread_mutex_lock(&s->sock_mtx);
  125: 		TAILQ_INSERT_TAIL(&s->sock_cli, cli, cli_node);
  126: 		pthread_mutex_unlock(&s->sock_mtx);
  127: 	}
  128: 
  129: 	cli->cli_parent = TASK_ARG(task);
  130: 	cli->cli_fd = c;
  131: 	cli->cli_func = TASK_DATA(task);
  132: 	memcpy(&cli->cli_addr, &sa, sizeof cli->cli_addr);
  133: 	AIT_SET_BUFSIZ(&cli->cli_buf[0], 0, AIT_LEN(&s->sock_buf));
  134: 	AIT_SET_BUFSIZ(&cli->cli_buf[1], 0, AIT_LEN(&s->sock_buf));
  135: 
  136: 	schedRead(TASK_ROOT(task), cli->cli_func, cli, cli->cli_fd, TASK_ARG(task), 0);
  137: 	ioUpdTimerSocket(cli);
  138: end:
  139: 	schedReadSelf(task);
  140: 	taskExit(task, NULL);
  141: }
  142: 
  143: static void *
  144: io_txNet(sched_task_t *task)
  145: {
  146: 	int wlen, ret, len = TASK_DATLEN(task);
  147: 	sock_cli_t *cli = TASK_ARG(task);
  148: 	sock_t *s = (sock_t*) cli->cli_parent;
  149: 	u_char *buf = TASK_DATA(task);
  150: 	struct pollfd pfd[1];
  151: 
  152: 	pfd->fd = TASK_FD(task);
  153: 	pfd->events = POLLOUT;
  154: 	pfd->revents = 0;
  155: 	for(; len > 0; len -= wlen, buf += wlen) {
  156: 		ioUpdTimerSocket(cli);
  157: 
  158: 		if ((ret = poll(pfd, 1, s->sock_timeout.tv_sec * 1000)) < 1 || 
  159: 				pfd->revents & (POLLNVAL | POLLERR | POLLHUP)) {
  160: #if 0
  161: 			if (!ret)
  162: 				continue;
  163: #endif
  164: 			schedEvent(TASK_ROOT(task), io_closeClient, cli, 0, NULL, 0);
  165: 			break;
  166: 		}
  167: 
  168: 		if (s->sock_type == SOCK_STREAM)
  169: 			wlen = send(TASK_FD(task), buf, len, 0);
  170: 		else
  171: 			wlen = sendto(TASK_FD(task), buf, len, 0, 
  172: 					&cli->cli_addr.sa, cli->cli_addr.sa.sa_len);
  173: 		if (wlen < 1) {
  174: 			schedEvent(TASK_ROOT(task), io_closeClient, cli, 0, NULL, 0);
  175: 			break;
  176: 		}
  177: 	}
  178: 
  179: 	taskExit(task, NULL);
  180: }
  181: 
  182: static void *
  183: io_txPty(sched_task_t *task)
  184: {
  185: 	int wlen;
  186: 	sock_cli_t *cli = TASK_ARG(task);
  187: 
  188: 	ioUpdTimerSocket(cli);
  189: 
  190: 	wlen = write(TASK_FD(task), TASK_DATA(task), TASK_DATLEN(task));
  191: 	if (wlen < 1)
  192: 		schedEvent(TASK_ROOT(task), io_closeClient, cli, 0, NULL, 0);
  193: 
  194: 	taskExit(task, NULL);
  195: }
  196: 
  197: static void *
  198: io_rxNet(sched_task_t *task)
  199: {
  200: 	int rlen;
  201: 	sock_cli_t *cli = TASK_ARG(task);
  202: 	sock_t *s = (sock_t*) cli->cli_parent;
  203: 	sockaddr_t sa;
  204: 	socklen_t salen = sizeof sa.ss;
  205: 
  206: 	ioUpdTimerSocket(cli);
  207: 
  208: 	if (s->sock_type == SOCK_STREAM)
  209: 		rlen = recv(TASK_FD(task), AIT_GET_BUF(&cli->cli_buf[0]), 
  210: 				AIT_LEN(&cli->cli_buf[0]), 0);
  211: 	else {
  212: 		rlen = recvfrom(TASK_FD(task), AIT_GET_BUF(&cli->cli_buf[0]), 
  213: 				AIT_LEN(&cli->cli_buf[0]), 0, &sa.sa, &salen);
  214: 		if (e_addrcmp(&cli->cli_addr, &sa, 42))
  215: 			goto end;
  216: 	}
  217: 	if (rlen < 1)
  218: 		schedEvent(TASK_ROOT(task), io_closeClient, cli, 0, NULL, 0);
  219: 	else
  220: 		schedEvent(TASK_ROOT(task), io_txPty, cli, cli->cli_pty, 
  221: 				AIT_GET_BUF(&cli->cli_buf[0]), rlen);
  222: end:
  223: 	schedReadSelf(task);
  224: 	taskExit(task, NULL);
  225: }
  226: 
  227: static void *
  228: io_rxPty(sched_task_t *task)
  229: {
  230: 	int rlen;
  231: 	sock_cli_t *cli = TASK_ARG(task);
  232: 
  233: 	ioUpdTimerSocket(cli);
  234: 
  235: 	rlen = read(TASK_FD(task), AIT_GET_BUF(&cli->cli_buf[1]), AIT_LEN(&cli->cli_buf[1]));
  236: 	if (rlen < 1)
  237: 		schedEvent(TASK_ROOT(task), io_closeClient, cli, 0, NULL, 0);
  238: 	else
  239: 		schedEvent(TASK_ROOT(task), io_txNet, cli, cli->cli_fd, 
  240: 				AIT_GET_BUF(&cli->cli_buf[1]), rlen);
  241: 
  242: 	schedReadSelf(task);
  243: 	taskExit(task, NULL);
  244: }
  245: 
  246: static void *
  247: io_bridgeClient(sched_task_t *task)
  248: {
  249: 	int c, rlen;
  250: 	pid_t pid;
  251: 	sockaddr_t sa;
  252: 	socklen_t salen = sizeof sa.ss;
  253: 	sock_cli_t *cli = NULL;
  254: 	sock_t *s = (sock_t*) TASK_ARG(task);
  255: 	array_t *args = NULL;
  256: 	char **argv = NULL;
  257: 
  258: 	if (s->sock_type == SOCK_STREAM) {
  259: 		if ((c = accept(TASK_FD(task), &sa.sa, &salen)) == -1) {
  260: 			LOGERR;
  261: 			goto end;
  262: 		}
  263: 	} else {
  264: 		if ((rlen = recvfrom(TASK_FD(task), 
  265: 						AIT_GET_BUF(&s->sock_buf), AIT_LEN(&s->sock_buf), 
  266: 						MSG_PEEK, &sa.sa, &salen)) == -1) {
  267: 			LOGERR;
  268: 			goto end;
  269: 		} else
  270: 			c = TASK_FD(task);
  271: 	}
  272: 
  273: 	cli = e_malloc(sizeof(sock_cli_t));
  274: 	if (!cli) {
  275: 		io_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
  276: 		if (s->sock_type == SOCK_STREAM)
  277: 			close(c);
  278: 		goto end;
  279: 	} else {
  280: 		memset(cli, 0, sizeof(sock_cli_t));
  281: 		pthread_mutex_lock(&s->sock_mtx);
  282: 		TAILQ_INSERT_TAIL(&s->sock_cli, cli, cli_node);
  283: 		pthread_mutex_unlock(&s->sock_mtx);
  284: 	}
  285: 
  286: 	cli->cli_parent = TASK_ARG(task);
  287: 	cli->cli_fd = c;
  288: 	strlcpy(cli->cli_cmdline, TASK_DATA(task), sizeof cli->cli_cmdline);
  289: 	memcpy(&cli->cli_addr, &sa, sizeof cli->cli_addr);
  290: 	AIT_SET_BUFSIZ(&cli->cli_buf[0], 0, AIT_LEN(&s->sock_buf));
  291: 	AIT_SET_BUFSIZ(&cli->cli_buf[1], 0, AIT_LEN(&s->sock_buf));
  292: 
  293: 	switch ((pid = ioForkPTY(&cli->cli_pty, cli->cli_name, sizeof cli->cli_name, 
  294: 				NULL, NULL, NULL))) {
  295: 		case -1:
  296: 			ELIBERR(io);
  297: 			break;
  298: 		case 0:
  299: 			array_Args(cli->cli_cmdline, 0, " \t", &args);
  300: 			argv = array_To(args);
  301: 			array_Destroy(&args);
  302: 
  303: #if 0
  304: 			printf("Console %s\n", cli->cli_name);
  305: #endif
  306: 			rlen = execv(*argv, argv);
  307: 			_exit(rlen);
  308: 			break;
  309: 		default:
  310: 			cli->cli_pid = pid;
  311: 
  312: 			schedRead(TASK_ROOT(task), io_rxPty, cli, cli->cli_pty, 
  313: 					TASK_ARG(task), 0);
  314: 			schedRead(TASK_ROOT(task), io_rxNet, cli, cli->cli_fd, 
  315: 					TASK_ARG(task), 0);
  316: 			ioUpdTimerSocket(cli);
  317: 			break;
  318: 	}
  319: end:
  320: 	schedReadSelf(task);
  321: 	taskExit(task, NULL);
  322: }
  323: 
  324: static void *
  325: io_bridgeClient2Pool(sched_task_t *task)
  326: {
  327: 	int c, rlen;
  328: 	sockaddr_t sa;
  329: 	socklen_t salen = sizeof sa.ss;
  330: 	sock_cli_t *cli = NULL;
  331: 	sock_t *s = (sock_t*) TASK_ARG(task);
  332: 
  333: 	if (s->sock_type == SOCK_STREAM) {
  334: 		if ((c = accept(TASK_FD(task), &sa.sa, &salen)) == -1) {
  335: 			LOGERR;
  336: 			goto end;
  337: 		}
  338: 	} else {
  339: 		if ((rlen = recvfrom(TASK_FD(task), 
  340: 						AIT_GET_BUF(&s->sock_buf), AIT_LEN(&s->sock_buf), 
  341: 						MSG_PEEK, &sa.sa, &salen)) == -1) {
  342: 			LOGERR;
  343: 			goto end;
  344: 		} else
  345: 			c = TASK_FD(task);
  346: 	}
  347: 
  348: 	cli = e_malloc(sizeof(sock_cli_t));
  349: 	if (!cli) {
  350: 		io_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
  351: 		if (s->sock_type == SOCK_STREAM)
  352: 			close(c);
  353: 		goto end;
  354: 	} else {
  355: 		memset(cli, 0, sizeof(sock_cli_t));
  356: 		pthread_mutex_lock(&s->sock_mtx);
  357: 		TAILQ_INSERT_TAIL(&s->sock_cli, cli, cli_node);
  358: 		pthread_mutex_unlock(&s->sock_mtx);
  359: 	}
  360: 
  361: 	io_progCheck(s->sock_prog, 42);
  362: 
  363: 	cli->cli_parent = TASK_ARG(task);
  364: 	cli->cli_fd = c;
  365: 	cli->cli_pty = io_progAttach(s->sock_prog, 42);
  366: 	strlcpy(cli->cli_cmdline, TASK_DATA(task), sizeof cli->cli_cmdline);
  367: 	memcpy(&cli->cli_addr, &sa, sizeof cli->cli_addr);
  368: 	AIT_SET_BUFSIZ(&cli->cli_buf[0], 0, AIT_LEN(&s->sock_buf));
  369: 	AIT_SET_BUFSIZ(&cli->cli_buf[1], 0, AIT_LEN(&s->sock_buf));
  370: 
  371: 	schedRead(TASK_ROOT(task), io_rxPty, cli, cli->cli_pty, TASK_ARG(task), 0);
  372: 	schedRead(TASK_ROOT(task), io_rxNet, cli, cli->cli_fd, TASK_ARG(task), 0);
  373: 	ioUpdTimerSocket(cli);
  374: end:
  375: 	schedReadSelf(task);
  376: 	taskExit(task, NULL);
  377: }
  378: 
  379: 
  380: /*
  381:  * ioInitSocket() - Init socket and allocate resources
  382:  *
  383:  * @role = Socket role
  384:  * @type = Socket type
  385:  * @proto = Socket protocol
  386:  * @addr = Bind to address
  387:  * @port = Bind to port
  388:  * @buflen = Socket buffer, optional if =0 == BUFSIZ
  389:  * return: NULL error or !=NULL created socket
  390:  */
  391: sock_t *
  392: ioInitSocket(int role, int type, int proto, const char *addr, u_short port, size_t buflen)
  393: {
  394: 	sock_t *s = NULL;
  395: 	int n = 1;
  396: 
  397: 	if (!addr)
  398: 		return NULL;
  399: 
  400: 	s = e_malloc(sizeof(sock_t));
  401: 	if (!s) {
  402: 		io_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
  403: 		return NULL;
  404: 	} else
  405: 		memset(s, 0, sizeof(sock_t));
  406: 
  407: 	TAILQ_INIT(&s->sock_cli);
  408: 
  409: 	s->sock_role = role;
  410: 	s->sock_type = type;
  411: 	s->sock_proto = proto;
  412: 	if (!e_gethostbyname(addr, port, &s->sock_addr)) {
  413: 		io_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
  414: 		e_free(s);
  415: 		return NULL;
  416: 	} else {
  417: 		buflen = buflen ? buflen : BUFSIZ;
  418: 		buflen = E_ALIGN(buflen, 2);	/* align buflen length */
  419: 		AIT_SET_BUFSIZ(&s->sock_buf, 0, buflen);
  420: 	}
  421: 
  422: 	s->sock_fd = socket(s->sock_addr.sa.sa_family, s->sock_type, s->sock_proto);
  423: 	if (s->sock_fd == -1) {
  424: 		LOGERR;
  425: 		AIT_FREE_VAL(&s->sock_buf);
  426: 		e_free(s);
  427: 		return NULL;
  428: 	}
  429: 	if (setsockopt(s->sock_fd, SOL_SOCKET, SO_SNDBUF, &buflen, sizeof buflen) == -1) {
  430: 		LOGERR;
  431: 		AIT_FREE_VAL(&s->sock_buf);
  432: 		e_free(s);
  433: 		return NULL;
  434: 	}
  435: 	if (setsockopt(s->sock_fd, SOL_SOCKET, SO_RCVBUF, &buflen, sizeof buflen) == -1) {
  436: 		LOGERR;
  437: 		AIT_FREE_VAL(&s->sock_buf);
  438: 		e_free(s);
  439: 		return NULL;
  440: 	}
  441: 	if (setsockopt(s->sock_fd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
  442: 		LOGERR;
  443: 		AIT_FREE_VAL(&s->sock_buf);
  444: 		e_free(s);
  445: 		return NULL;
  446: 	}
  447: 	if (bind(s->sock_fd, &s->sock_addr.sa, s->sock_addr.sa.sa_len) == -1) {
  448: 		LOGERR;
  449: 		AIT_FREE_VAL(&s->sock_buf);
  450: 		e_free(s);
  451: 		return NULL;
  452: 	}
  453: 
  454: 	s->sock_root = schedBegin();
  455: 	if (!s->sock_root) {
  456: 		io_SetErr(sched_GetErrno(), "%s", sched_GetError());
  457: 		AIT_FREE_VAL(&s->sock_buf);
  458: 		e_free(s);
  459: 		return NULL;
  460: 	}
  461: 
  462: 	pthread_mutex_init(&s->sock_mtx, NULL);
  463: 	return s;
  464: }
  465: 
  466: /*
  467:  * ioCloseSocket() - Close socket and free resources
  468:  *
  469:  * @s = Socket
  470:  * return: none
  471:  */
  472: void
  473: ioCloseSocket(sock_t ** __restrict s)
  474: {
  475: 	sock_cli_t *cli;
  476: 	int stat;
  477: 
  478: 	if (s && *s) {
  479: 		pthread_mutex_lock(&(*s)->sock_mtx);
  480: 		while ((cli = TAILQ_FIRST(&(*s)->sock_cli))) {
  481: 			TAILQ_REMOVE(&(*s)->sock_cli, cli, cli_node);
  482: 
  483: 			schedCancelby((*s)->sock_root, taskMAX, CRITERIA_ARG, cli, NULL);
  484: 
  485: 			if ((*s)->sock_type == SOCK_STREAM) {
  486: 				shutdown(cli->cli_fd, SHUT_RDWR);
  487: 				close(cli->cli_fd);
  488: 			}
  489: 			AIT_FREE_VAL(&cli->cli_buf[1]);
  490: 			AIT_FREE_VAL(&cli->cli_buf[0]);
  491: 
  492: 			if (cli->cli_pid > 0) {
  493: 				kill(cli->cli_pid, SIGKILL);
  494: 				while (waitpid(cli->cli_pid, &stat, WNOHANG) > 0) {
  495: 					usleep(1000);
  496: 					kill(cli->cli_pid, SIGKILL);
  497: 				}
  498: 			}
  499: 
  500: 			e_free(cli);
  501: 		}
  502: 		pthread_mutex_unlock(&(*s)->sock_mtx);
  503: 
  504: 		shutdown((*s)->sock_fd, SHUT_RDWR);
  505: 		close((*s)->sock_fd);
  506: 
  507: 		AIT_FREE_VAL(&(*s)->sock_buf);
  508: 
  509: 		schedEnd(&(*s)->sock_root);
  510: 
  511: 		pthread_mutex_destroy(&(*s)->sock_mtx);
  512: 		e_free(*s);
  513: 		*s = NULL;
  514: 	}
  515: }
  516: 
  517: /*
  518:  * ioUpSocket() - Setup socket for use
  519:  *
  520:  * @s = Socket
  521:  * @arg = Server role = listen backlog queue and Client role = peer address
  522:  * @timeout = Socket timeout in sec (default -1 infinit)
  523:  * return: -1 error or 0 ok
  524:  */
  525: int
  526: ioUpSocket(sock_t * __restrict s, void *arg, int timeout)
  527: {
  528: 	int ret = 0;
  529: 	sockaddr_t *peer = (sockaddr_t*) arg;
  530: 	uintptr_t backlog = (uintptr_t) arg;
  531: 
  532: 	if (!s || !arg)
  533: 		return -1;
  534: 	else {
  535: 		s->sock_timeout.tv_sec = timeout;
  536: 		s->sock_timeout.tv_nsec = (timeout < 1) ? timeout : 0;
  537: 		schedPolling(s->sock_root, &s->sock_timeout, NULL);
  538: 	}
  539: 
  540: 	switch (s->sock_role) {
  541: 		case IO_SOCK_ROLE_CLIENT:
  542: 			memcpy(&s->sock_peer, peer, sizeof s->sock_peer);
  543: 
  544: 			if (connect(s->sock_fd, &s->sock_peer.sa, 
  545: 						s->sock_peer.sa.sa_len) == -1) {
  546: 				LOGERR;
  547: 				return -1;
  548: 			}
  549: 			break;
  550: 		case IO_SOCK_ROLE_SERVER:
  551: 			if (s->sock_type == SOCK_STREAM) {
  552: 				s->sock_backq = backlog;
  553: 
  554: 				if (listen(s->sock_fd, s->sock_backq) == -1) {
  555: 					LOGERR;
  556: 					return -1;
  557: 				}
  558: 			}
  559: 			break;
  560: 		default:
  561: 			io_SetErr(EINVAL, "Unsupported socket type");
  562: 			return -1;
  563: 	}
  564: 
  565: 	fcntl(s->sock_fd, F_SETFL, fcntl(s->sock_fd, F_GETFL) | O_NONBLOCK);
  566: 	return ret;
  567: }
  568: 
  569: /*
  570:  * ioUpdTimerSocket() - Update timeout of socket
  571:  *
  572:  * @c = Client socket
  573:  * return:  none
  574:  */
  575: void
  576: ioUpdTimerSocket(sock_cli_t * __restrict c)
  577: {
  578: 	sock_t *s;
  579: 
  580: 	if (!c)
  581: 		return;
  582: 	else
  583: 		s = c->cli_parent;
  584: 
  585: 	if (s->sock_prog)
  586: 		io_progCheck(s->sock_prog, 42);
  587: 
  588: 	schedCancelby(s->sock_root, taskTIMER, CRITERIA_ARG, c, NULL);
  589: 	schedTimer(s->sock_root, io_closeClient, c, s->sock_timeout, NULL, 0);
  590: }
  591: 
  592: /*
  593:  * ioCloseClient() - Close client socket
  594:  *
  595:  * @c = Client socket
  596:  * return: 0 ok or !=0 error
  597:  */
  598: int
  599: ioCloseClient(sock_cli_t * __restrict c)
  600: {
  601: 	sock_t *s;
  602: 
  603: 	if (!c)
  604: 		return -1;
  605: 	else
  606: 		s = c->cli_parent;
  607: 
  608: 	return !schedEvent(s->sock_root, io_closeClient, c, 0, NULL, 0);
  609: }
  610: 
  611: /*
  612:  * ioLoopSocket() - Start socket scheduler
  613:  *
  614:  * @s = Socket
  615:  * @rcb = Read callback
  616:  * return: -1 error or return result from scheduler
  617:  */
  618: int
  619: ioLoopSocket(sock_t * __restrict s, sched_task_func_t rcb)
  620: {
  621: 	if (!s || !rcb || s->sock_kill)
  622: 		return -1;
  623: 
  624: 	schedRead(s->sock_root, io_acceptClient, s, s->sock_fd, rcb, 0);
  625: 	return schedRun(s->sock_root, &s->sock_kill);
  626: }
  627: 
  628: static void *
  629: io_progPurge(sched_task_t *task)
  630: {
  631: 	sock_t *s = (sock_t*) TASK_ARG(task);
  632: 
  633: 	io_progVacuum(s->sock_prog, 0);
  634: 
  635: 	schedTimer(TASK_ROOT(task), TASK_FUNC(task), TASK_ARG(task), 
  636: 			s->sock_timeout, TASK_DATA(task), TASK_DATLEN(task));
  637: 	taskExit(task, NULL);
  638: }
  639: 
  640: /*
  641:  * ioBridgeProg2Socket() - Start socket scheduler and bridge program to socket
  642:  *
  643:  * @s = Socket
  644:  * @prgname = Program name
  645:  * return: 0 ok or !=0 error
  646:  */
  647: int
  648: ioBridgeProg2Socket(sock_t * __restrict s, const char *prgname)
  649: {
  650: 	if (!s || !prgname || s->sock_kill)
  651: 		return -1;
  652: 
  653: 	if (s->sock_prog) {
  654: 		schedRead(s->sock_root, io_bridgeClient2Pool, 
  655: 				s, s->sock_fd, (void*) prgname, 0);
  656: 		schedTimer(s->sock_root, io_progPurge, s, s->sock_timeout, NULL, 0);
  657: 	} else
  658: 		schedRead(s->sock_root, io_bridgeClient, 
  659: 				s, s->sock_fd, (void*) prgname, 0);
  660: 	return schedRun(s->sock_root, &s->sock_kill);
  661: }
  662: 
  663: /*
  664:  * ioSetupProg2Socket() - Setup program pool to socket server
  665:  *
  666:  * @s = Socket
  667:  * @p = Program pool
  668:  * return: -1 error or 0 ok
  669:  */
  670: int
  671: ioSetupProg2Socket(sock_t * __restrict s, prog_t * __restrict p)
  672: {
  673: 	if (!s)
  674: 		return -1;
  675: 
  676: 	s->sock_prog = p;
  677: 	return 0;
  678: }

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