libaitrpc/src/srv.c - diff

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Diff for /libaitrpc/src/srv.c between versions 1.9 and 1.21

version 1.9, 2012/05/14 08:39:06	version 1.21, 2013/11/14 21:44:14
Line 12 terms:	Line 12 terms:
All of the documentation and software included in the ELWIX and AITNET	All of the documentation and software included in the ELWIX and AITNET
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
by Michael Pounov <misho@elwix.org>. All rights reserved.	by Michael Pounov <misho@elwix.org>. All rights reserved.

Redistribution and use in source and binary forms, with or without	Redistribution and use in source and binary forms, with or without
Line 46 SUCH DAMAGE.	Line 46 SUCH DAMAGE.
#include "global.h"	#include "global.h"


static void rxPacket(sched_task_t);	/* SOCK_STREAM */
static void rxBLOB(sched_task_t);	static void acceptClients(sched_task_t );
	static void closeClient(sched_task_t );
	static void rxPacket(sched_task_t );
	static void txPacket(sched_task_t );

	/* SOCK_DGRAM */
	static void freeClient(sched_task_t );
	static void rxUDPPacket(sched_task_t );
	static void txUDPPacket(sched_task_t );

	/* SOCK_RAW */

	static sched_task_func_t cbProto[SOCK_RAW + 1][4] = {
	{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */
	{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */
	{ rxUDPPacket, freeClient, rxUDPPacket, txUDPPacket }, /* SOCK_DGRAM */
	{ NULL, NULL, NULL, NULL } /* SOCK_RAW */
	};


	void
	rpc_freeCli(rpc_cli_t * __restrict c)
	{
	rpc_srv_t *s = c->cli_parent;

	schedCancelby(s->srv_root, taskMAX, CRITERIA_ARG, c, NULL);

	/* free buffer */
	AIT_FREE_VAL(&c->cli_buf);

	array_Del(s->srv_clients, c->cli_id, 0);
	if (c)
	e_free(c);
	}


	static inline int
	_check4freeslot(rpc_srv_t * __restrict srv, sockaddr_t * __restrict sa)
	{
	rpc_cli_t *c = NULL;
	register int i;

	/* check free slots for connect */
	for (i = 0; i < array_Size(srv->srv_clients) &&
	(c = array(srv->srv_clients, i, rpc_cli_t*)); i++)
	/* check for duplicates */
	if (sa && !e_addrcmp(&c->cli_sa, sa, 42))
	break;
	if (i >= array_Size(srv->srv_clients))
	return -1; /* no more free slots! */

	return i;
	}

	static rpc_cli_t *
	_allocClient(rpc_srv_t * __restrict srv, sockaddr_t * __restrict sa)
	{
	rpc_cli_t *c = NULL;
	int n;

	n = _check4freeslot(srv, sa);
	if (n == -1)
	return NULL;
	else
	c = array(srv->srv_clients, n, rpc_cli_t*);

	if (!c) {
	c = e_malloc(sizeof(rpc_cli_t));
	if (!c) {
	LOGERR;
	srv->srv_kill = 1;
	return NULL;
	} else {
	memset(c, 0, sizeof(rpc_cli_t));
	array_Set(srv->srv_clients, n, c);
	c->cli_id = n;
	c->cli_parent = srv;
	}

	/* alloc empty buffer */
	AIT_SET_BUFSIZ(&c->cli_buf, 0, srv->srv_netbuf);
	}

	return c;
	}


static void *	static void *
	freeClient(sched_task_t *task)
	{
	rpc_freeCli(TASK_ARG(task));

	return NULL;
	}

	static void *
	closeClient(sched_task_t *task)
	{
	int sock = ((rpc_cli_t*) TASK_ARG(task))->cli_sock;

	rpc_freeCli(TASK_ARG(task));

	/* close client socket */
	shutdown(sock, SHUT_RDWR);
	close(sock);
	return NULL;
	}

	static void *
txPacket(sched_task_t *task)	txPacket(sched_task_t *task)
{	{
rpc_cli_t *c = TASK_ARG(task);	rpc_cli_t *c = TASK_ARG(task);
rpc_srv_t *s = c->cli_parent;	rpc_srv_t *s = c->cli_parent;
rpc_func_t *f = NULL;	rpc_func_t *f = NULL;
u_char *buf = TASK_DATA(task);	u_char *buf = AIT_GET_BUF(&c->cli_buf);
struct tagRPCCall rpc = (struct tagRPCCall) buf;	struct tagRPCCall rpc = (struct tagRPCCall) buf;
int ret, wlen = sizeof(struct tagRPCCall);	int ret, estlen, wlen = sizeof(struct tagRPCCall);
array_t *arr = NULL;	struct pollfd pfd;
	#ifdef TCP_SESSION_TIMEOUT
	struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, TASK_ARG(task), NULL);
	schedTimer(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), ts, TASK_ARG(task), 0);
	#endif

if (rpc->call_argc) {	if (rpc->call_argc) {
f = rpc_srv_getCall(s, ntohs(rpc->call_tag), ntohl(rpc->call_hash));	f = rpc_srv_getCall(s, ntohs(rpc->call_tag));
if (!f) {	if (!f) {
	rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");

rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
rpc->call_rep.ret = RPC_ERROR(-1);	rpc->call_rep.ret = RPC_ERROR(-1);
rpc->call_rep.eno = RPC_ERROR(rpc_Errno);	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
} else {	} else {
rpc->call_argc = htons(rpc_srv_getVars(f, &arr));	/* calc estimated length */
	estlen = ait_resideVars(RPC_RETVARS(c)) + wlen;
	if (estlen > AIT_LEN(&c->cli_buf))
	AIT_RE_BUF(&c->cli_buf, estlen);
	buf = AIT_GET_BUF(&c->cli_buf);
	rpc = (struct tagRPCCall*) buf;

	rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
/* Go Encapsulate variables */	/* Go Encapsulate variables */
ret = io_vars2buffer(buf + wlen, TASK_DATLEN(task) - wlen, arr);	ret = ait_vars2buffer(buf + wlen, AIT_LEN(&c->cli_buf) - wlen,
io_clrVars(f->func_vars);	RPC_RETVARS(c));
	/* Free return values */
	ait_freeVars(&c->cli_vars);
if (ret == -1) {	if (ret == -1) {
rpc_SetErr(EBADRPC, "Prepare RPC packet failed");	rpc_SetErr(EBADRPC, "Prepare RPC packet failed");

rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
rpc->call_rep.ret = RPC_ERROR(-1);	rpc->call_rep.ret = RPC_ERROR(-1);
rpc->call_rep.eno = RPC_ERROR(rpc_Errno);	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
Line 81 txPacket(sched_task_t *task)	Line 206 txPacket(sched_task_t *task)
}	}
}	}

rpc->call_len = htons(wlen);	rpc->call_len = htonl(wlen);

	#if 0
/* calculate CRC */	/* calculate CRC */
rpc->call_crc ^= rpc->call_crc;	rpc->call_crc ^= rpc->call_crc;
rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));	rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));
	#endif

/* send reply */	/* send reply */
ret = send(TASK_FD(task), buf, wlen, 0);	pfd.fd = TASK_FD(task);
if (ret == -1)	pfd.events = POLLOUT;
LOGERR;	for (; wlen > 0; wlen -= ret, buf += ret) {
else if (ret != wlen)	if ((ret = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 \|\|
rpc_SetErr(EPROCUNAVAIL, "RPC reply, should be send %d bytes, "	pfd.revents & (POLLERR \| POLLHUP \| POLLNVAL)) {
"really sended %d bytes", wlen, ret);	if (ret)
	LOGERR;
	else
	rpc_SetErr(ETIMEDOUT, "Timeout reached! Server not respond");
	/* close connection */
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
	return NULL;
	}
	ret = send(TASK_FD(task), buf, MIN(wlen, s->srv_netbuf), MSG_NOSIGNAL);
	if (ret == -1) {
	/* close connection */
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
	return NULL;
	}
	}

return NULL;	return NULL;
}	}
Line 105 execCall(sched_task_t *task)	Line 248 execCall(sched_task_t *task)
rpc_srv_t *s = c->cli_parent;	rpc_srv_t *s = c->cli_parent;
rpc_func_t *f = NULL;	rpc_func_t *f = NULL;
array_t *arr = NULL;	array_t *arr = NULL;
u_char *buf = TASK_DATA(task) + TASK_VAL(task);	u_char *buf = AIT_GET_BUF(&c->cli_buf);
struct tagRPCCall rpc = (struct tagRPCCall) buf;	struct tagRPCCall rpc = (struct tagRPCCall) buf;
int argc = ntohs(rpc->call_argc);	int argc = ntohs(rpc->call_argc);

/* Go decapsulate variables ... */	/* Go decapsulate variables ... */
if (argc) {	if (argc) {
arr = io_buffer2vars(buf + sizeof(struct tagRPCCall),	arr = ait_buffer2vars(buf + sizeof(struct tagRPCCall),
TASK_DATLEN(task) - TASK_VAL(task) - sizeof(struct tagRPCCall),	AIT_LEN(&c->cli_buf) - sizeof(struct tagRPCCall), argc, 42);
argc, 1);
if (!arr) {	if (!arr) {
rpc_SetErr(ERPCMISMATCH, "#%d - %s", io_GetErrno(), io_GetError());	rpc_SetErr(ERPCMISMATCH, "#%d - %s", elwix_GetErrno(), elwix_GetError());

rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
rpc->call_rep.ret = RPC_ERROR(-1);	rpc->call_rep.ret = RPC_ERROR(-1);
rpc->call_rep.eno = RPC_ERROR(rpc_Errno);	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
return NULL;	return NULL;
}	}
}	} else
	arr = NULL;

if (!(f = rpc_srv_getCall(s, ntohs(rpc->call_tag), ntohl(rpc->call_hash)))) {	if (!(f = rpc_srv_getCall(s, ntohs(rpc->call_tag)))) {
rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");	rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");

rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
rpc->call_rep.ret = RPC_ERROR(-1);	rpc->call_rep.ret = RPC_ERROR(-1);
rpc->call_rep.eno = RPC_ERROR(rpc_Errno);	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
} else {	} else {
/* if client doesn't want reply */	/* if client doesn't want reply */
argc = rpc->call_req.flags & RPC_NOREPLY;	argc = RPC_CHK_NOREPLY(rpc);
rpc->call_rep.ret = RPC_ERROR(rpc_srv_execCall(f, rpc, arr));	rpc->call_rep.ret = RPC_ERROR(rpc_srv_execCall(c, rpc, f->func_name, arr));
if (rpc->call_rep.ret == htonl(-1)) {	if (rpc->call_rep.ret == htonl(-1)) {
rpc->call_rep.eno = RPC_ERROR(errno);	if (!rpc->call_rep.eno) {
	LOGERR;
	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
	}
rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
} else {	} else {
rpc->call_rep.eno ^= rpc->call_rep.eno;	rpc->call_rep.eno ^= rpc->call_rep.eno;
if (argc) {	if (argc) {
/* without reply */	/* without reply */
io_clrVars(f->func_vars);	ait_freeVars(&c->cli_vars);
rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
} else	} else {
rpc->call_argc = htons(rpc_srv_getVars(f, NULL));	/* reply */
	rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
	}
}	}
}	}

if (arr)	array_Destroy(&arr);
io_arrayDestroy(&arr);
return NULL;	return NULL;
}	}

Line 156 rxPacket(sched_task_t *task)	Line 305 rxPacket(sched_task_t *task)
{	{
rpc_cli_t *c = TASK_ARG(task);	rpc_cli_t *c = TASK_ARG(task);
rpc_srv_t *s = c->cli_parent;	rpc_srv_t *s = c->cli_parent;
u_char *buf = TASK_DATA(task);	int len, rlen, noreply, estlen;
int rlen, noreply;	#if 0
u_short crc, off = 0;	u_short crc;
struct tagRPCCall *rpc;	#endif
struct timespec ts;	u_char *buf = AIT_GET_BUF(&c->cli_buf);
	struct tagRPCCall rpc = (struct tagRPCCall) buf;
	struct pollfd pfd;
	#ifdef TCP_SESSION_TIMEOUT
	struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

memset(buf, 0, TASK_DATLEN(task));	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, TASK_ARG(task), NULL);
rlen = recv(TASK_FD(task), buf, TASK_DATLEN(task), 0);	schedTimer(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
if (rlen == -1) {	TASK_ARG(task), ts, TASK_ARG(task), 0);
LOGERR;	#endif
c->cli_kill = kill;
	memset(buf, 0, sizeof(struct tagRPCCall));
	rlen = recv(TASK_FD(task), rpc, sizeof(struct tagRPCCall), MSG_PEEK);
	if (rlen < sizeof(struct tagRPCCall)) {
	/* close connection */
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
return NULL;	return NULL;
} else if (!rlen) { /* receive EOF */	} else {
c->cli_kill = kill;	estlen = ntohl(rpc->call_len);
	if (estlen > AIT_LEN(&c->cli_buf))
	AIT_RE_BUF(&c->cli_buf, estlen);
	rpc = (struct tagRPCCall*) AIT_GET_BUF(&c->cli_buf);
	buf = AIT_GET_BUF(&c->cli_buf);
	len = estlen;
	}

	/* get next part of packet */
	memset(buf, 0, len);
	pfd.fd = TASK_FD(task);
	pfd.events = POLLIN \| POLLPRI;
	for (; len > 0; len -= rlen, buf += rlen) {
	if ((rlen = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 \|\|
	pfd.revents & (POLLERR \| POLLHUP \| POLLNVAL)) {
	if (rlen)
	LOGERR;
	else
	rpc_SetErr(ETIMEDOUT, "Timeout reached! Server not respond");
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
	return NULL;
	}
	rlen = recv(TASK_FD(task), buf, len, 0);
	if (rlen == -1) {
	/* close connection */
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
	return NULL;
	}
	}

	#if 0
	/* check integrity of packet */
	crc = ntohs(rpc->call_crc);
	rpc->call_crc ^= rpc->call_crc;
	if (crc != crcFletcher16((u_short*) rpc, len / 2)) {
	rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet");
return NULL;	return NULL;
}	}
	#endif

	noreply = RPC_CHK_NOREPLY(rpc);

	/* check RPC packet session info */
	if (rpc_chkPktSession(&rpc->call_session, &s->srv_session)) {
	rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");

	rpc->call_argc ^= rpc->call_argc;
	rpc->call_rep.ret = RPC_ERROR(-1);
	rpc->call_rep.eno = RPC_ERROR(errno);
	} else {
	/* execute RPC call */
	schedEvent(TASK_ROOT(task), execCall, TASK_ARG(task), (int) noreply, rpc, len);
	}

	/* send RPC reply */
	if (!noreply)
	schedWrite(TASK_ROOT(task), cbProto[s->srv_proto][CB_TXPACKET],
	TASK_ARG(task), TASK_FD(task), rpc, len);

	/* lets get next packet */
	schedReadSelf(task);
	return NULL;
	}

	static void *
	acceptClients(sched_task_t *task)
	{
	rpc_srv_t *srv = TASK_ARG(task);
	rpc_cli_t *c = NULL;
	socklen_t salen = sizeof(sockaddr_t);
	int sock;
	#ifdef TCP_SESSION_TIMEOUT
	struct timespec ts = { DEF_RPC_TIMEOUT, 0 };
	#endif

	c = _allocClient(srv, NULL);
	if (!c) {
	EVERBOSE(1, "RPC client quota exceeded! Connection will be shutdown!\n");
	if ((sock = accept(TASK_FD(task), NULL, NULL)) != -1) {
	shutdown(sock, SHUT_RDWR);
	close(sock);
	}
	goto end;
	}

	/* accept client */
	c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
	if (c->cli_sock == -1) {
	LOGERR;
	AIT_FREE_VAL(&c->cli_buf);
	array_Del(srv->srv_clients, c->cli_id, 42);
	goto end;
	} else
	fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) \| O_NONBLOCK);

	#ifdef TCP_SESSION_TIMEOUT
	/* armed timer for close stateless connection */
	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, c, NULL);
	schedTimer(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT], c,
	ts, c, 0);
	#endif
	schedRead(TASK_ROOT(task), cbProto[srv->srv_proto][CB_RXPACKET], c,
	c->cli_sock, NULL, 0);
	end:
	schedReadSelf(task);
	return NULL;
	}


	static void *
	txUDPPacket(sched_task_t *task)
	{
	rpc_cli_t *c = TASK_ARG(task);
	rpc_srv_t *s = c->cli_parent;
	rpc_func_t *f = NULL;
	u_char *buf = AIT_GET_BUF(&c->cli_buf);
	struct tagRPCCall rpc = (struct tagRPCCall) buf;
	int ret, wlen = sizeof(struct tagRPCCall);
	struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, TASK_ARG(task), NULL);
	schedTimer(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), ts, TASK_ARG(task), 0);

	if (rpc->call_argc) {
	f = rpc_srv_getCall(s, ntohs(rpc->call_tag));
	if (!f) {
	rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");
	rpc->call_argc ^= rpc->call_argc;
	rpc->call_rep.ret = RPC_ERROR(-1);
	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
	} else {
	rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
	/* Go Encapsulate variables */
	ret = ait_vars2buffer(buf + wlen, AIT_LEN(&c->cli_buf) - wlen,
	RPC_RETVARS(c));
	/* Free return values */
	ait_freeVars(&c->cli_vars);
	if (ret == -1) {
	rpc_SetErr(EBADRPC, "Prepare RPC packet failed");
	rpc->call_argc ^= rpc->call_argc;
	rpc->call_rep.ret = RPC_ERROR(-1);
	rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
	} else
	wlen += ret;
	}
	}

	rpc->call_len = htonl(wlen);

	/* calculate CRC */
	rpc->call_crc ^= rpc->call_crc;
	rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));

	/* send reply */
	ret = sendto(TASK_FD(task), buf, wlen, MSG_NOSIGNAL,
	&c->cli_sa.sa, c->cli_sa.sa.sa_len);
	if (ret == -1 \|\| ret != wlen) {
	/* close connection */
	schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
	TASK_ARG(task), 0, NULL, 0);
	}

	return NULL;
	}

	static void *
	rxUDPPacket(sched_task_t *task)
	{
	rpc_srv_t *srv = TASK_ARG(task);
	rpc_cli_t *c = NULL;
	int len, rlen, noreply;
	u_short crc, off = 0;
	u_char buf[USHRT_MAX + 1];
	struct tagRPCCall rpc = (struct tagRPCCall) buf;
	sockaddr_t sa;
	socklen_t salen;
	struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

	/* receive connect packet */
	salen = sa.ss.ss_len = sizeof(sockaddr_t);
	rlen = recvfrom(TASK_FD(task), buf, sizeof buf, 0, &sa.sa, &salen);
	if (rlen < 1)
	goto end;

	c = _allocClient(srv, &sa);
	if (!c)
	goto end;
	else {
	c->cli_sock = TASK_FD(task);
	memcpy(&c->cli_sa, &sa, sizeof c->cli_sa);
	memcpy(AIT_GET_BUF(&c->cli_buf), buf, AIT_LEN(&c->cli_buf));
	/* armed timer for close stateless connection */
	schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, c, NULL);
	schedTimer(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT],
	c, ts, c, 0);
	}

do {	do {
	/* check RPC packet */
if (rlen < sizeof(struct tagRPCCall)) {	if (rlen < sizeof(struct tagRPCCall)) {
rpc_SetErr(ERPCMISMATCH, "Too short RPC packet");	rpc_SetErr(ERPCMISMATCH, "Short RPC packet");
	break;
schedRead(TASK_ROOT(task), rxPacket, TASK_ARG(task), TASK_FD(task),
TASK_DATA(task), TASK_DATLEN(task));
return NULL;
} else	} else
rpc = (struct tagRPCCall*) (buf + off);	rpc = (struct tagRPCCall*) (AIT_GET_BUF(&c->cli_buf) + off);

rlen -= ntohs(rpc->call_len);	len = ntohl(rpc->call_len);
	rlen -= len;

	/* check RPC packet lengths */
	if (rlen < 0 \|\| len < sizeof(struct tagRPCCall)) {
	rpc_SetErr(ERPCMISMATCH, "Broken RPC packet length");
	/* skip entire packet */
	break;
	}

/* check integrity of packet */	/* check integrity of packet */
crc = ntohs(rpc->call_crc);	crc = ntohs(rpc->call_crc);
rpc->call_crc ^= rpc->call_crc;	rpc->call_crc ^= rpc->call_crc;
if (crc != crcFletcher16((u_short*) (buf + off), ntohs(rpc->call_len) / 2)) {	if (crc != crcFletcher16((u_short*) rpc, len / 2)) {
rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet");	rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet");

off += ntohs(rpc->call_len);	off += len;
if (rlen < 1)	/* try next packet remaining into buffer */
break;	continue;
else
continue;
}	}

noreply = rpc->call_req.flags & RPC_NOREPLY;	noreply = RPC_CHK_NOREPLY(rpc);

/* check RPC packet session info */	/* check RPC packet session info */
if (rpc_chkPktSession(&rpc->call_session, &s->srv_session)) {	if (rpc_chkPktSession(&rpc->call_session, &srv->srv_session)) {
rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");	rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");

rpc->call_argc ^= rpc->call_argc;	rpc->call_argc ^= rpc->call_argc;
rpc->call_rep.ret = RPC_ERROR(-1);	rpc->call_rep.ret = RPC_ERROR(-1);
rpc->call_rep.eno = RPC_ERROR(errno);	rpc->call_rep.eno = RPC_ERROR(errno);
} else {	} else {
/* change socket timeout from last packet */
ts.tv_sec = rpc->call_session.sess_timeout;
ts.tv_nsec = 0;
schedPolling(TASK_ROOT(task), &ts, NULL);

/* execute RPC call */	/* execute RPC call */
schedEvent(TASK_ROOT(task), execCall, TASK_ARG(task), off,	schedEvent(TASK_ROOT(task), execCall, c,
TASK_DATA(task), TASK_DATLEN(task));	(int) noreply, rpc, len);
}	}

/* send RPC reply */	/* send RPC reply */
if (!noreply)	if (!noreply)
schedWrite(TASK_ROOT(task), txPacket, TASK_ARG(task), TASK_FD(task),	schedWrite(TASK_ROOT(task), cbProto[srv->srv_proto][CB_TXPACKET],
buf + off, TASK_DATLEN(task) - off);	c, TASK_FD(task), rpc, len);

off += ntohs(rpc->call_len);	off += len;
} while (rlen > 0);	} while (rlen > 0);

/* lets get next packet */	end:
schedRead(TASK_ROOT(task), rxPacket, TASK_ARG(task), TASK_FD(task),	schedReadSelf(task);
TASK_DATA(task), TASK_DATLEN(task));
return NULL;	return NULL;
}	}

static void *	/* ------------------------------------------------------ */
rpc_srv_dispatchCall(void *arg)
	void
	rpc_freeBLOBCli(rpc_cli_t * __restrict c)
{	{
rpc_cli_t *c = arg;	rpc_srv_t *s = c->cli_parent;
rpc_srv_t *s;
u_char *buf;
sched_root_task_t *root;
struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

if (!arg) {	schedCancelby(s->srv_blob.root, taskMAX, CRITERIA_ARG, c, NULL);
rpc_SetErr(EINVAL, "Invalid parameter can`t procced RPC client");
return NULL;
} else
s = c->cli_parent;

/* allocate net buffer */	/* free buffer */
buf = malloc(s->srv_netbuf);	AIT_FREE_VAL(&c->cli_buf);
if (!buf) {
LOGERR;
return NULL;
}

root = schedBegin();	array_Del(s->srv_blob.clients, c->cli_id, 0);
if (!root) {	if (c)
rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());	e_free(c);
free(buf);	}
return NULL;
} else {
schedTermCondition(root, kill);
schedPolling(root, &ts, NULL);
}

schedRead(root, rxPacket, c, c->cli_sock, buf, s->srv_netbuf);

schedRun(root, (void*) &c->cli_kill);	static void *
schedEnd(&root);	closeBLOBClient(sched_task_t *task)
	{
	int sock = ((rpc_cli_t*) TASK_ARG(task))->cli_sock;

shutdown(c->cli_sock, SHUT_RDWR);	rpc_freeBLOBCli(TASK_ARG(task));
close(c->cli_sock);
memset(c, 0, sizeof(rpc_cli_t));	/* close client socket */
free(buf);	shutdown(sock, SHUT_RDWR);
	close(sock);
return NULL;	return NULL;
}	}


static void *	static void *
txBLOB(sched_task_t *task)	txBLOB(sched_task_t *task)
{	{
u_char *buf = TASK_DATA(task);	rpc_cli_t *c = TASK_ARG(task);
struct tagBLOBHdr blob = (struct tagBLOBHdr ) buf;	u_char *buf = AIT_GET_BUF(&c->cli_buf);
int wlen = sizeof(struct tagBLOBHdr);	int wlen = sizeof(struct tagBLOBHdr);

/* calculate CRC */
blob->hdr_crc ^= blob->hdr_crc;
blob->hdr_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));

/* send reply */	/* send reply */
wlen = send(TASK_FD(task), buf, wlen, 0);	wlen = send(TASK_FD(task), buf, wlen, MSG_NOSIGNAL);
if (wlen == -1)	if (wlen == -1 \|\| wlen != sizeof(struct tagBLOBHdr)) {
LOGERR;	/* close blob connection */
else if (wlen != sizeof(struct tagBLOBHdr))	schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
rpc_SetErr(EPROCUNAVAIL, "RPC reply, should be send %d bytes, "	}
"really sended %d bytes", sizeof(struct tagBLOBHdr), wlen);

return NULL;	return NULL;
}	}
Line 304 rxBLOB(sched_task_t *task)	Line 639 rxBLOB(sched_task_t *task)
rpc_cli_t *c = TASK_ARG(task);	rpc_cli_t *c = TASK_ARG(task);
rpc_srv_t *s = c->cli_parent;	rpc_srv_t *s = c->cli_parent;
rpc_blob_t *b;	rpc_blob_t *b;
u_char *buf = TASK_DATA(task);	struct tagBLOBHdr blob;
struct tagBLOBHdr blob = (struct tagBLOBHdr ) buf;
int rlen;	int rlen;
u_short crc;
struct timespec ts;

/* check for disable service at this moment? */	memset(&blob, 0, sizeof blob);
if (!s \|\| s->srv_blob.state == disable) {	rlen = recv(TASK_FD(task), &blob, sizeof blob, 0);
usleep(100000);	if (rlen < 1) {
#ifdef HAVE_PTHREAD_YIELD	/* close blob connection */
pthread_yield();	schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
#endif
schedRead(TASK_ROOT(task), rxBLOB, TASK_ARG(task), TASK_FD(task),
TASK_DATA(task), TASK_DATLEN(task));
return NULL;	return NULL;
}	}

memset(buf, 0, TASK_DATLEN(task));	/* check BLOB packet */
rlen = recv(TASK_FD(task), buf, TASK_DATLEN(task), 0);
if (rlen == -1) {
LOGERR;
c->cli_kill = kill;
return NULL;
} else if (!rlen) { /* receive EOF */
c->cli_kill = kill;
return NULL;
}

if (rlen < sizeof(struct tagBLOBHdr)) {	if (rlen < sizeof(struct tagBLOBHdr)) {
rpc_SetErr(ERPCMISMATCH, "Too short BLOB packet");	rpc_SetErr(ERPCMISMATCH, "Short BLOB packet");
schedRead(TASK_ROOT(task), rxBLOB, TASK_ARG(task), TASK_FD(task),
TASK_DATA(task), TASK_DATLEN(task));
return NULL;
}

/* check integrity of packet */	schedReadSelf(task);
crc = ntohs(blob->hdr_crc);
blob->hdr_crc ^= blob->hdr_crc;
if (crc != crcFletcher16((u_short*) buf, rlen / 2)) {
rpc_SetErr(ERPCMISMATCH, "Bad CRC BLOB packet");
schedRead(TASK_ROOT(task), rxBLOB, TASK_ARG(task), TASK_FD(task),
TASK_DATA(task), TASK_DATLEN(task));
return NULL;	return NULL;
}	}

/* check RPC packet session info */	/* check RPC packet session info */
if ((crc = rpc_chkPktSession(&blob->hdr_session, &s->srv_session))) {	if (rpc_chkPktSession(&blob.hdr_session, &s->srv_session)) {
rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");	rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
blob->hdr_cmd = error;	blob.hdr_cmd = error;
goto end;	goto end;
} else {
/* change socket timeout from last packet */
ts.tv_sec = blob->hdr_session.sess_timeout;
ts.tv_nsec = 0;
schedPolling(TASK_ROOT(task), &ts, NULL);
}	}

/* Go to proceed packet ... */	/* Go to proceed packet ... */
switch (blob->hdr_cmd) {	switch (blob.hdr_cmd) {
case get:	case get:
if (!(b = rpc_srv_getBLOB(s, ntohl(blob->hdr_var)))) {	if (!(b = rpc_srv_getBLOB(s, ntohl(blob.hdr_var)))) {
rpc_SetErr(EINVAL, "Var=%x not found", ntohl(blob->hdr_var));	rpc_SetErr(EINVAL, "Var=%x not found", ntohl(blob.hdr_var));
blob->hdr_cmd = no;	blob.hdr_cmd = no;
blob->hdr_ret = RPC_ERROR(-1);	blob.hdr_ret = RPC_ERROR(-1);
break;	break;
} else	} else
blob->hdr_len = htonl(b->blob_len);	blob.hdr_len = htonl(b->blob_len);

if (rpc_srv_blobMap(s, b) != -1) {	if (rpc_srv_blobMap(s, b) != -1) {
/* deliver BLOB variable to client */	/* deliver BLOB variable to client */
blob->hdr_ret = htonl(rpc_srv_sendBLOB(c, b));	blob.hdr_ret = htonl(rpc_srv_sendBLOB(c, b));
rpc_srv_blobUnmap(b);	rpc_srv_blobUnmap(b);
} else {	} else {
blob->hdr_cmd = error;	blob.hdr_cmd = error;
blob->hdr_ret = RPC_ERROR(-1);	blob.hdr_ret = RPC_ERROR(-1);
}	}
break;	break;
case set:	case set:
if ((b = rpc_srv_registerBLOB(s, ntohl(blob->hdr_len)))) {	if ((b = rpc_srv_registerBLOB(s, ntohl(blob.hdr_len),
	ntohl(blob.hdr_ret)))) {
/* set new BLOB variable for reply :) */	/* set new BLOB variable for reply :) */
blob->hdr_var = htonl(b->blob_var);	blob.hdr_var = htonl(b->blob_var);

/* receive BLOB from client */	/* receive BLOB from client */
blob->hdr_ret = htonl(rpc_srv_recvBLOB(c, b));	blob.hdr_ret = htonl(rpc_srv_recvBLOB(c, b));
rpc_srv_blobUnmap(b);	rpc_srv_blobUnmap(b);
} else {	} else {
blob->hdr_cmd = error;	blob.hdr_cmd = error;
blob->hdr_ret = RPC_ERROR(-1);	blob.hdr_ret = RPC_ERROR(-1);
}	}
break;	break;
case unset:	case unset:
if (rpc_srv_unregisterBLOB(s, blob->hdr_var) == -1) {	if (rpc_srv_unregisterBLOB(s, ntohl(blob.hdr_var)) == -1) {
blob->hdr_cmd = error;	blob.hdr_cmd = error;
blob->hdr_ret = RPC_ERROR(-1);	blob.hdr_ret = RPC_ERROR(-1);
}	}
break;	break;
default:	default:
rpc_SetErr(EPROCUNAVAIL, "Unsupported BLOB command %d", blob->hdr_cmd);	rpc_SetErr(EPROCUNAVAIL, "Unsupported BLOB command %d", blob.hdr_cmd);
blob->hdr_cmd = error;	blob.hdr_cmd = error;
blob->hdr_ret = RPC_ERROR(-1);	blob.hdr_ret = RPC_ERROR(-1);
}	}

end:	end:
schedWrite(TASK_ROOT(task), txBLOB, TASK_ARG(task), TASK_FD(task),	memcpy(AIT_ADDR(&c->cli_buf), &blob, sizeof blob);
TASK_DATA(task), TASK_DATLEN(task));	schedWrite(TASK_ROOT(task), txBLOB, TASK_ARG(task), TASK_FD(task), NULL, 0);
schedRead(TASK_ROOT(task), rxBLOB, TASK_ARG(task), TASK_FD(task),	schedReadSelf(task);
TASK_DATA(task), TASK_DATLEN(task));
return NULL;	return NULL;
}	}

static void *	static void *
rpc_srv_dispatchVars(void *arg)	flushBLOB(sched_task_t *task)
{	{
rpc_cli_t *c = arg;	rpc_srv_t *srv = TASK_ARG(task);
rpc_srv_t *s;	rpc_blob_t b, tmp;
sched_root_task_t *root;
u_char *buf;
struct timespec ts = { DEF_RPC_TIMEOUT, 0 };

if (!arg) {	TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp) {
rpc_SetErr(EINVAL, "Invalid parameter can`t procced BLOB");	TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
return NULL;
} else
s = c->cli_parent;

/* allocate net buffer */	rpc_srv_blobFree(srv, b);
buf = malloc(sizeof(struct tagBLOBHdr));	e_free(b);
if (!buf) {
LOGERR;
return NULL;
}	}

root = schedBegin();	schedSignalSelf(task);
if (!root) {	return NULL;
rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());	}
free(buf);
	static void *
	acceptBLOBClients(sched_task_t *task)
	{
	rpc_srv_t *srv = TASK_ARG(task);
	rpc_cli_t *c = NULL;
	register int i;
	socklen_t salen = sizeof(sockaddr_t);
	int sock;
	#ifdef TCP_NOPUSH
	int n = 1;
	#endif

	/* check free slots for connect */
	for (i = 0; i < array_Size(srv->srv_blob.clients) &&
	(c = array(srv->srv_blob.clients, i, rpc_cli_t*)); i++);
	if (c) { /* no more free slots! */
	EVERBOSE(1, "BLOB client quota exceeded! Connection will be shutdown!\n");
	if ((sock = accept(TASK_FD(task), NULL, NULL)) != -1) {
	shutdown(sock, SHUT_RDWR);
	close(sock);
	}
	goto end;
	}

	c = e_malloc(sizeof(rpc_cli_t));
	if (!c) {
	LOGERR;
	srv->srv_kill = srv->srv_blob.kill = 1;
return NULL;	return NULL;
} else {	} else {
schedTermCondition(root, kill);	memset(c, 0, sizeof(rpc_cli_t));
schedPolling(root, &ts, NULL);	array_Set(srv->srv_blob.clients, i, c);
	c->cli_id = i;
	c->cli_parent = srv;
}	}

schedRead(root, rxBLOB, c, c->cli_sock, buf, sizeof(struct tagBLOBHdr));	/* alloc empty buffer */
	AIT_SET_BUFSIZ(&c->cli_buf, 0, srv->srv_netbuf);

schedRun(root, (void*) &c->cli_kill);	/* accept client */
schedEnd(&root);	c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
	if (c->cli_sock == -1) {
	LOGERR;
	AIT_FREE_VAL(&c->cli_buf);
	array_Del(srv->srv_blob.clients, i, 42);
	goto end;
	} else {
	#ifdef TCP_NOPUSH
	setsockopt(c->cli_sock, IPPROTO_TCP, TCP_NOPUSH, &n, sizeof n);
	#endif
	fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) \| O_NONBLOCK);
	}

shutdown(c->cli_sock, SHUT_RDWR);	schedRead(TASK_ROOT(task), rxBLOB, c, c->cli_sock, NULL, 0);
close(c->cli_sock);	end:
memset(c, 0, sizeof(rpc_cli_t));	schedReadSelf(task);
free(buf);
return NULL;	return NULL;
}	}

// -------------------------------------------------	/* ------------------------------------------------------ */

/*	/*
* rpc_srv_initBLOBServer() - Init & create BLOB Server	* rpc_srv_initBLOBServer() - Init & create BLOB Server
Line 472 int	Line 808 int
rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir)	rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir)
{	{
int n = 1;	int n = 1;
io_sockaddr_t sa;

if (!srv) {	if (!srv \|\| srv->srv_kill) {
rpc_SetErr(EINVAL, "Invalid parameters can`t init BLOB server");	rpc_SetErr(EINVAL, "Invalid parameters can`t init BLOB server");
return -1;	return -1;
}	}
if (srv->srv_blob.state) {
rpc_SetErr(EPERM, "Already started BLOB server!");
return 0;
}

memset(&srv->srv_blob, 0, sizeof srv->srv_blob);	memset(&srv->srv_blob, 0, sizeof srv->srv_blob);
if (access(diskDir, R_OK \| W_OK) == -1) {	if (access(diskDir, R_OK \| W_OK) == -1) {
Line 490 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s	Line 821 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s
} else	} else
AIT_SET_STR(&srv->srv_blob.dir, diskDir);	AIT_SET_STR(&srv->srv_blob.dir, diskDir);

srv->srv_blob.server.cli_tid = pthread_self();	/* init blob list */
	TAILQ_INIT(&srv->srv_blob.blobs);

srv->srv_blob.server.cli_parent = srv;	srv->srv_blob.server.cli_parent = srv;

memcpy(&sa, &srv->srv_server.cli_sa, sizeof sa);	memcpy(&srv->srv_blob.server.cli_sa, &srv->srv_server.cli_sa, sizeof(sockaddr_t));
switch (sa.sa.sa_family) {	switch (srv->srv_blob.server.cli_sa.sa.sa_family) {
case AF_INET:	case AF_INET:
sa.sin.sin_port = htons(Port ? Port : ntohs(sa.sin.sin_port) + 1);	srv->srv_blob.server.cli_sa.sin.sin_port =
	htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin.sin_port) + 1);
break;	break;
case AF_INET6:	case AF_INET6:
sa.sin6.sin6_port = htons(Port ? Port : ntohs(sa.sin6.sin6_port) + 1);	srv->srv_blob.server.cli_sa.sin6.sin6_port =
	htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin6.sin6_port) + 1);
break;	break;
case AF_LOCAL:	case AF_LOCAL:
strlcat(sa.sun.sun_path, ".blob", sizeof sa.sun.sun_path);	strlcat(srv->srv_blob.server.cli_sa.sun.sun_path, ".blob",
	sizeof srv->srv_blob.server.cli_sa.sun.sun_path);
break;	break;
default:	default:
AIT_FREE_VAL(&srv->srv_blob.dir);	AIT_FREE_VAL(&srv->srv_blob.dir);
return -1;	return -1;
}	}
memcpy(&srv->srv_blob.server.cli_sa, &sa, sizeof sa);

/* create BLOB server socket */	/* create BLOB server socket */
srv->srv_blob.server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, SOCK_STREAM, 0);	srv->srv_blob.server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, SOCK_STREAM, 0);
Line 542 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s	Line 877 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s
close(srv->srv_blob.server.cli_sock);	close(srv->srv_blob.server.cli_sock);
AIT_FREE_VAL(&srv->srv_blob.dir);	AIT_FREE_VAL(&srv->srv_blob.dir);
return -1;	return -1;
}	} else
	fcntl(srv->srv_blob.server.cli_sock, F_SETFL,
	fcntl(srv->srv_blob.server.cli_sock, F_GETFL) \| O_NONBLOCK);

/* allocate pool for concurent clients */
srv->srv_blob.clients = calloc(srv->srv_numcli, sizeof(rpc_cli_t));	/* allocate pool for concurent blob clients */
	srv->srv_blob.clients = array_Init(array_Size(srv->srv_clients));
if (!srv->srv_blob.clients) {	if (!srv->srv_blob.clients) {
LOGERR;	rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
close(srv->srv_blob.server.cli_sock);	close(srv->srv_blob.server.cli_sock);
AIT_FREE_VAL(&srv->srv_blob.dir);	AIT_FREE_VAL(&srv->srv_blob.dir);
return -1;	return -1;
} else	}
memset(srv->srv_blob.clients, 0, srv->srv_numcli * sizeof(rpc_cli_t));

rpc_srv_registerCall(srv, NULL, CALL_BLOBSHUTDOWN, 0);	/* init blob scheduler */
rpc_srv_registerCall(srv, NULL, CALL_BLOBCLIENTS, 1);	srv->srv_blob.root = schedBegin();
rpc_srv_registerCall(srv, NULL, CALL_BLOBVARS, 1);	if (!srv->srv_blob.root) {
rpc_srv_registerCall(srv, NULL, CALL_BLOBSTATE, 0);	rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
	array_Destroy(&srv->srv_blob.clients);
	close(srv->srv_blob.server.cli_sock);
	AIT_FREE_VAL(&srv->srv_blob.dir);
	return -1;
	}

srv->srv_blob.state = enable; /* enable BLOB */
return 0;	return 0;
}	}

Line 572 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s	Line 913 rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_s
void	void
rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv)	rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv)
{	{
rpc_cli_t *c;	if (!srv)
register int i;
rpc_blob_t *f;

if (!srv \|\| srv->srv_blob.state == disable)
return;	return;
else
srv->srv_blob.state = kill;

rpc_srv_unregisterCall(srv, NULL, CALL_BLOBSHUTDOWN);	srv->srv_blob.kill = 1;
rpc_srv_unregisterCall(srv, NULL, CALL_BLOBCLIENTS);
rpc_srv_unregisterCall(srv, NULL, CALL_BLOBVARS);
rpc_srv_unregisterCall(srv, NULL, CALL_BLOBSTATE);

/* close all clients connections & server socket */	schedEnd(&srv->srv_blob.root);
for (i = 0, c = srv->srv_blob.clients; i < srv->srv_numcli && c; i++, c++)
if (c->cli_sa.sa.sa_family)
shutdown(c->cli_sock, SHUT_RDWR);
close(srv->srv_blob.server.cli_sock);

if (srv->srv_blob.clients) {
free(srv->srv_blob.clients);
srv->srv_blob.clients = NULL;
}

/* detach blobs */
while ((f = srv->srv_blob.blobs)) {
srv->srv_blob.blobs = f->blob_next;
rpc_srv_blobFree(srv, f);
free(f);
}

AIT_FREE_VAL(&srv->srv_blob.dir);

/* at final, save disable BLOB service state */
srv->srv_blob.state = disable;
}	}

/*	/*
* rpc_srv_loopBLOB() - Execute Main BLOB server loop and wait for clients requests	* rpc_srv_loopBLOBServer() - Execute Main BLOB server loop and wait for clients requests
*	*
* @srv = RPC Server instance	* @srv = RPC Server instance
* return: -1 error or 0 ok, infinite loop ...	* return: -1 error or 0 ok, infinite loop ...
*/	*/
int	int
rpc_srv_loopBLOB(rpc_srv_t * __restrict srv)	rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv)
{	{
socklen_t salen = sizeof(io_sockaddr_t);
register int i;
rpc_cli_t *c;	rpc_cli_t *c;
int ret;	register int i;
pthread_attr_t attr;	rpc_blob_t b, tmp;
struct pollfd pfd;	struct timespec ts = { RPC_SCHED_POLLING, 0 };

if (!srv \|\| srv->srv_blob.state == kill) {	if (!srv \|\| srv->srv_kill) {
rpc_SetErr(EINVAL, "Invalid parameter can`t start BLOB server");	rpc_SetErr(EINVAL, "Invalid parameter can`t start BLOB server");
return -1;	return -1;
}	}

if (listen(srv->srv_blob.server.cli_sock, SOMAXCONN) == -1) {	if (listen(srv->srv_blob.server.cli_sock, array_Size(srv->srv_blob.clients)) == -1) {
LOGERR;	LOGERR;
return -1;	return -1;
} else	}
fcntl(srv->srv_blob.server.cli_sock, F_SETFL,
fcntl(srv->srv_blob.server.cli_sock, F_GETFL) \| O_NONBLOCK);

pthread_attr_init(&attr);	schedSignal(srv->srv_blob.root, flushBLOB, srv, SIGFBLOB, NULL, 0);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);	if (!schedRead(srv->srv_blob.root, acceptBLOBClients, srv,
	srv->srv_blob.server.cli_sock, NULL, 0)) {
	rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
	return -1;
	}

pfd.fd = srv->srv_blob.server.cli_sock;	schedPolling(srv->srv_blob.root, &ts, NULL);
pfd.events = POLLIN \| POLLPRI;	/* main rpc loop */
/* main BLOB loop */	schedRun(srv->srv_blob.root, &srv->srv_blob.kill);
while (srv->srv_blob.state != kill && srv->srv_kill != kill) {
for (c = srv->srv_blob.clients, i = 0; i < srv->srv_numcli && c; i++, c++)
if (!c->cli_sa.sa.sa_family)
break;
if (i >= srv->srv_numcli) {
#ifdef HAVE_PTHREAD_YIELD
pthread_yield();
#else
usleep(1000000);
#endif
continue;
}

if ((ret = poll(&pfd, 1, srv->srv_session.sess_timeout * 1000)) == -1 \|\|	/* detach blobs */
pfd.revents & (POLLERR \| POLLHUP \| POLLNVAL)) {	TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp) {
LOGERR;	TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
ret = 1;
break;
} else if (!ret)
continue;

c->cli_sock = accept(srv->srv_blob.server.cli_sock, &c->cli_sa.sa, &salen);	rpc_srv_blobFree(srv, b);
if (c->cli_sock == -1) {	e_free(b);
LOGERR;	}
continue;
} else
c->cli_parent = srv;

/* spawn dispatch thread for BLOB client */	/* close all clients connections & server socket */
c->cli_kill = enable;	for (i = 0; i < array_Size(srv->srv_blob.clients); i++) {
if (pthread_create(&c->cli_tid, &attr, rpc_srv_dispatchVars, c)) {	c = array(srv->srv_blob.clients, i, rpc_cli_t*);
LOGERR;	if (c) {
continue;	shutdown(c->cli_sock, SHUT_RDWR);
	close(c->cli_sock);

	schedCancelby(srv->srv_blob.root, taskMAX, CRITERIA_ARG, c, NULL);
	AIT_FREE_VAL(&c->cli_buf);
}	}
	array_Del(srv->srv_blob.clients, i, 42);
}	}
	array_Destroy(&srv->srv_blob.clients);

srv->srv_blob.state = kill;	close(srv->srv_blob.server.cli_sock);

pthread_attr_destroy(&attr);	AIT_FREE_VAL(&srv->srv_blob.dir);
return 0;	return 0;
}	}

Line 690 rpc_srv_loopBLOB(rpc_srv_t * __restrict srv)	Line 988 rpc_srv_loopBLOB(rpc_srv_t * __restrict srv)
/*	/*
* rpc_srv_initServer() - Init & create RPC Server	* rpc_srv_initServer() - Init & create RPC Server
*	*
* @regProgID = ProgramID for authentication & recognition	* @InstID = Instance for authentication & recognition
* @regProcID = ProcessID for authentication & recognition
* @concurentClients = Concurent clients at same time to this server	* @concurentClients = Concurent clients at same time to this server
* @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet)	* @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
* @family = Family type, AF_INET, AF_INET6 or AF_LOCAL
* @csHost = Host name or address for bind server, if NULL any address	* @csHost = Host name or address for bind server, if NULL any address
* @Port = Port for bind server, if Port == 0 default port is selected	* @Port = Port for bind server, if Port == 0 default port is selected
	* @proto = Protocol, if == 0 choose SOCK_STREAM
* return: NULL == error or !=NULL bind and created RPC server instance	* return: NULL == error or !=NULL bind and created RPC server instance
*/	*/
rpc_srv_t *	rpc_srv_t *
rpc_srv_initServer(u_int regProgID, u_int regProcID, int concurentClients,	rpc_srv_initServer(u_char InstID, int concurentClients, int netBuf,
int netBuf, u_short family, const char *csHost, u_short Port)	const char *csHost, u_short Port, int proto)
{	{
rpc_srv_t *srv = NULL;
int n = 1;	int n = 1;
struct hostent *host = NULL;	rpc_srv_t *srv = NULL;
io_sockaddr_t sa;	sockaddr_t sa = E_SOCKADDR_INIT;

if (!concurentClients \|\| !regProgID \|\|	if (!concurentClients \|\| (proto < 0 \|\| proto > SOCK_DGRAM)) {
(family != AF_INET && family != AF_INET6 && family != AF_LOCAL)) {	rpc_SetErr(EINVAL, "Invalid parameters can`t init RPC server");
rpc_SetErr(EINVAL, "Error:: Invalid parameters can`t init RPC server ...\n");
return NULL;	return NULL;
}	}
	if (!e_gethostbyname(csHost, Port, &sa))
	return NULL;
if (!Port)	if (!Port)
Port = RPC_DEFPORT;	Port = RPC_DEFPORT;
if (!netBuf)	if (!proto)
	proto = SOCK_STREAM;
	if (netBuf < RPC_MIN_BUFSIZ)
netBuf = BUFSIZ;	netBuf = BUFSIZ;
else	else
netBuf = io_align(netBuf, 1); /* align netBuf length */	netBuf = E_ALIGN(netBuf, 2); /* align netBuf length */
if (csHost && family != AF_LOCAL) {
host = gethostbyname2(csHost, family);
if (!host) {
rpc_SetErr(h_errno, "Error:: %s\n", hstrerror(h_errno));
return NULL;
}
}
memset(&sa, 0, sizeof sa);
sa.sa.sa_family = family;
switch (family) {
case AF_INET:
sa.sin.sin_len = sizeof(struct sockaddr_in);
sa.sin.sin_port = htons(Port);
if (csHost)
memcpy(&sa.sin.sin_addr, host->h_addr, host->h_length);
break;
case AF_INET6:
sa.sin6.sin6_len = sizeof(struct sockaddr_in6);
sa.sin6.sin6_port = htons(Port);
if (csHost)
memcpy(&sa.sin6.sin6_addr, host->h_addr, host->h_length);
break;
case AF_LOCAL:
sa.sun.sun_len = sizeof(struct sockaddr_un);
if (csHost)
strlcpy(sa.sun.sun_path, csHost, sizeof sa.sun.sun_path);
unlink(sa.sun.sun_path);
break;
default:
rpc_SetErr(EINVAL, "Error:: Invalid parameters can`t start RPC server ...\n");
return NULL;
}

srv = malloc(sizeof(rpc_srv_t));	#ifdef HAVE_SRANDOMDEV
	srandomdev();
	#else
	time_t tim;

	srandom((time(&tim) ^ getpid()));
	#endif

	srv = e_malloc(sizeof(rpc_srv_t));
if (!srv) {	if (!srv) {
LOGERR;	LOGERR;
return NULL;	return NULL;
} else	} else
memset(srv, 0, sizeof(rpc_srv_t));	memset(srv, 0, sizeof(rpc_srv_t));

	srv->srv_proto = proto;
srv->srv_netbuf = netBuf;	srv->srv_netbuf = netBuf;
srv->srv_numcli = concurentClients;
srv->srv_session.sess_version = RPC_VERSION;	srv->srv_session.sess_version = RPC_VERSION;
srv->srv_session.sess_timeout = DEF_RPC_TIMEOUT;	srv->srv_session.sess_instance = InstID;
srv->srv_session.sess_program = regProgID;
srv->srv_session.sess_process = regProcID;

srv->srv_server.cli_tid = pthread_self();
srv->srv_server.cli_parent = srv;	srv->srv_server.cli_parent = srv;
memcpy(&srv->srv_server.cli_sa, &sa, sizeof sa);	memcpy(&srv->srv_server.cli_sa, &sa, sizeof srv->srv_server.cli_sa);

	/* init functions */
	pthread_mutex_init(&srv->srv_funcs.mtx, NULL);
	SLIST_INIT(&srv->srv_funcs);
	AVL_INIT(&srv->srv_funcs);

	/* init scheduler */
	srv->srv_root = schedBegin();
	if (!srv->srv_root) {
	rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
	pthread_mutex_destroy(&srv->srv_funcs.mtx);
	e_free(srv);
	return NULL;
	}

	/* init pool for clients */
	srv->srv_clients = array_Init(concurentClients);
	if (!srv->srv_clients) {
	rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
	schedEnd(&srv->srv_root);
	pthread_mutex_destroy(&srv->srv_funcs.mtx);
	e_free(srv);
	return NULL;
	}

/* create server socket */	/* create server socket */
srv->srv_server.cli_sock = socket(family, SOCK_STREAM, 0);	srv->srv_server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, srv->srv_proto, 0);
if (srv->srv_server.cli_sock == -1) {	if (srv->srv_server.cli_sock == -1) {
LOGERR;	LOGERR;
free(srv);	array_Destroy(&srv->srv_clients);
	schedEnd(&srv->srv_root);
	pthread_mutex_destroy(&srv->srv_funcs.mtx);
	e_free(srv);
return NULL;	return NULL;
}	}
if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {	if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
LOGERR;	LOGERR;
close(srv->srv_server.cli_sock);	goto err;
free(srv);
return NULL;
}	}
n = srv->srv_netbuf;	n = srv->srv_netbuf;
if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {	if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {
LOGERR;	LOGERR;
close(srv->srv_server.cli_sock);	goto err;
free(srv);
return NULL;
}	}
if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {	if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {
LOGERR;	LOGERR;
close(srv->srv_server.cli_sock);	goto err;
free(srv);
return NULL;
}	}
if (bind(srv->srv_server.cli_sock, &srv->srv_server.cli_sa.sa,	if (bind(srv->srv_server.cli_sock, &srv->srv_server.cli_sa.sa,
srv->srv_server.cli_sa.sa.sa_len) == -1) {	srv->srv_server.cli_sa.sa.sa_len) == -1) {
LOGERR;	LOGERR;
close(srv->srv_server.cli_sock);	goto err;
free(srv);
return NULL;
}

/* allocate pool for concurent clients */
srv->srv_clients = calloc(srv->srv_numcli, sizeof(rpc_cli_t));
if (!srv->srv_clients) {
LOGERR;
close(srv->srv_server.cli_sock);
free(srv);
return NULL;
} else	} else
memset(srv->srv_clients, 0, srv->srv_numcli * sizeof(rpc_cli_t));	fcntl(srv->srv_server.cli_sock, F_SETFL,
	fcntl(srv->srv_server.cli_sock, F_GETFL) \| O_NONBLOCK);

rpc_srv_registerCall(srv, NULL, CALL_SRVSHUTDOWN, 0);	rpc_register_srvPing(srv);
rpc_srv_registerCall(srv, NULL, CALL_SRVCLIENTS, 1);
rpc_srv_registerCall(srv, NULL, CALL_SRVSESSIONS, 4);
rpc_srv_registerCall(srv, NULL, CALL_SRVCALLS, 1);

return srv;	return srv;
	err: /* error condition */
	close(srv->srv_server.cli_sock);
	array_Destroy(&srv->srv_clients);
	schedEnd(&srv->srv_root);
	pthread_mutex_destroy(&srv->srv_funcs.mtx);
	e_free(srv);
	return NULL;
}	}

/*	/*
Line 831 rpc_srv_initServer(u_int regProgID, u_int regProcID, i	Line 1118 rpc_srv_initServer(u_int regProgID, u_int regProcID, i
void	void
rpc_srv_endServer(rpc_srv_t ** __restrict psrv)	rpc_srv_endServer(rpc_srv_t ** __restrict psrv)
{	{
rpc_cli_t *c;	if (!psrv \|\| !*psrv)
register int i;
rpc_func_t *f;

if (!psrv \|\| !*psrv) {
rpc_SetErr(EINVAL, "Error:: Can`t destroy server because parameter is null!\n");
return;	return;
}

	/* if send kill to blob server */
rpc_srv_endBLOBServer(*psrv);	rpc_srv_endBLOBServer(*psrv);

/* close all clients connections & server socket */	(*psrv)->srv_kill = 1;
for (i = 0, c = (psrv)->srv_clients; i < (psrv)->srv_numcli && c; i++, c++)	sleep(RPC_SCHED_POLLING);
if (c->cli_sa.sa.sa_family) {
shutdown(c->cli_sock, SHUT_RDWR);
close(c->cli_sock);
}
close((*psrv)->srv_server.cli_sock);

if ((*psrv)->srv_clients) {	schedEnd(&(*psrv)->srv_root);
free((*psrv)->srv_clients);
(*psrv)->srv_clients = NULL;
(*psrv)->srv_numcli = 0;
}

/* detach exported calls */	pthread_mutex_destroy(&(*psrv)->srv_funcs.mtx);
while ((f = (*psrv)->srv_funcs)) {	e_free(*psrv);
(*psrv)->srv_funcs = f->func_next;
io_freeVars(&f->func_vars);
AIT_FREE_VAL(&f->func_name);
AIT_FREE_VAL(&f->func_file);
free(f);
}

free(*psrv);
*psrv = NULL;	*psrv = NULL;
}	}

Line 878 rpc_srv_endServer(rpc_srv_t ** __restrict psrv)	Line 1143 rpc_srv_endServer(rpc_srv_t ** __restrict psrv)
int	int
rpc_srv_loopServer(rpc_srv_t * __restrict srv)	rpc_srv_loopServer(rpc_srv_t * __restrict srv)
{	{
socklen_t salen = sizeof(io_sockaddr_t);
register int i;
rpc_cli_t *c;	rpc_cli_t *c;
int ret;	register int i;
pthread_attr_t attr;	rpc_func_t *f;
struct pollfd pfd;	struct timespec ts = { RPC_SCHED_POLLING, 0 };

if (!srv) {	if (!srv) {
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t start RPC server ...\n");	rpc_SetErr(EINVAL, "Invalid parameter can`t start RPC server");
return -1;	return -1;
}	}

/* activate BLOB server worker if srv->srv_blob.state == enable */	if (srv->srv_proto == SOCK_STREAM)
rpc_srv_execBLOBServer(srv);	if (listen(srv->srv_server.cli_sock, array_Size(srv->srv_clients)) == -1) {
	LOGERR;
	return -1;
	}

if (listen(srv->srv_server.cli_sock, SOMAXCONN) == -1) {	if (!schedRead(srv->srv_root, cbProto[srv->srv_proto][CB_ACCEPTCLIENT], srv,
LOGERR;	srv->srv_server.cli_sock, NULL, 0)) {
	rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
return -1;	return -1;
} else	}
fcntl(srv->srv_server.cli_sock, F_SETFL, fcntl(srv->srv_server.cli_sock, F_GETFL) \| O_NONBLOCK);

pthread_attr_init(&attr);	schedPolling(srv->srv_root, &ts, NULL);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);

pfd.fd = srv->srv_server.cli_sock;
pfd.events = POLLIN \| POLLPRI;
/* main rpc loop */	/* main rpc loop */
while (srv->srv_kill != kill) {	schedRun(srv->srv_root, &srv->srv_kill);
for (c = srv->srv_clients, i = 0; i < srv->srv_numcli && c; i++, c++)
if (!c->cli_sa.sa.sa_family)	/* close all clients connections & server socket */
break;	for (i = 0; i < array_Size(srv->srv_clients); i++) {
if (i >= srv->srv_numcli) {	c = array(srv->srv_clients, i, rpc_cli_t*);
#ifdef HAVE_PTHREAD_YIELD	if (c) {
pthread_yield();	shutdown(c->cli_sock, SHUT_RDWR);
#else	close(c->cli_sock);
usleep(1000000);
#endif	schedCancelby(srv->srv_root, taskMAX, CRITERIA_ARG, c, NULL);
continue;	ait_freeVars(&RPC_RETVARS(c));
	AIT_FREE_VAL(&c->cli_buf);
}	}
	array_Del(srv->srv_clients, i, 42);
	}
	array_Destroy(&srv->srv_clients);

if ((ret = poll(&pfd, 1, srv->srv_session.sess_timeout * 1000)) == -1 \|\|	close(srv->srv_server.cli_sock);
pfd.revents & (POLLERR \| POLLHUP \| POLLNVAL)) {
LOGERR;
ret = 1;
break;
} else if (!ret)
continue;

c->cli_sock = accept(srv->srv_server.cli_sock, &c->cli_sa.sa, &salen);	/* detach exported calls */
if (c->cli_sock == -1) {	RPC_FUNCS_LOCK(&srv->srv_funcs);
LOGERR;	while ((f = SLIST_FIRST(&srv->srv_funcs))) {
continue;	SLIST_REMOVE_HEAD(&srv->srv_funcs, func_next);
} else
c->cli_parent = srv;

/* spawn rpc client dispatcher */	AIT_FREE_VAL(&f->func_name);
c->cli_kill = enable;	e_free(f);
if (pthread_create(&c->cli_tid, &attr, rpc_srv_dispatchCall, c)) {
LOGERR;
continue;
}
}	}
	srv->srv_funcs.avlh_root = NULL;
	RPC_FUNCS_UNLOCK(&srv->srv_funcs);

pthread_attr_destroy(&attr);
return 0;	return 0;
}	}

// ---------------------------------------------------------

/*	/*
* rpc_srv_execCall() Execute registered call from RPC server	* rpc_srv_execCall() Execute registered call from RPC server
*	*
* @call = Register RPC call	* @cli = RPC client
* @rpc = IN RPC call structure	* @rpc = IN RPC call structure
	* @funcname = Execute RPC function
* @args = IN RPC calling arguments from RPC client	* @args = IN RPC calling arguments from RPC client
* return: -1 error, !=-1 ok	* return: -1 error, !=-1 ok
*/	*/
int	int
rpc_srv_execCall(rpc_func_t * __restrict call, struct tagRPCCall * __restrict rpc,	rpc_srv_execCall(rpc_cli_t * __restrict cli, struct tagRPCCall * __restrict rpc,
array_t * __restrict args)	ait_val_t funcname, array_t * __restrict args)
{	{
void *dl;
rpc_callback_t func;	rpc_callback_t func;
int ret;

if (!call \|\| !rpc \|\| !call->func_parent) {	if (!cli \|\| !rpc \|\| !AIT_ADDR(&funcname)) {
rpc_SetErr(EINVAL, "Invalid parameter can`t exec function");	rpc_SetErr(EINVAL, "Invalid parameter can`t exec function");
return -1;	return -1;
}	}

dl = dlopen(AIT_ADDR(&call->func_file), RTLD_NOW);	func = AIT_GET_LIKE(&funcname, rpc_callback_t);
if (!dl) {	return func(cli, rpc, args);
rpc_SetErr(ENOENT, "Can`t attach module %s!", dlerror());
return -1;
}

func = dlsym(dl, (const char*) AIT_GET_STR(&call->func_name));
if (func)
ret = func(call, ntohs(rpc->call_argc), args);
else {
rpc_SetErr(ENOEXEC, "Can`t find function %s!", dlerror());
ret = -1;
}

dlclose(dl);
return ret;
}	}

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.9
changed lines
	Added in v.1.21