version 1.23.6.8, 2015/01/15 01:41:53
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version 1.24.2.6, 2015/01/18 01:03:50
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Line 12 terms:
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Line 12 terms:
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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> |
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Copyright 2004 - 2014 | Copyright 2004 - 2015 |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
Redistribution and use in source and binary forms, with or without |
Line 63 static void *txUDPPacket(sched_task_t *);
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Line 63 static void *txUDPPacket(sched_task_t *);
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static void *rxBPFPacket(sched_task_t *); |
static void *rxBPFPacket(sched_task_t *); |
static void *txBPFPacket(sched_task_t *); |
static void *txBPFPacket(sched_task_t *); |
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static sched_task_func_t cbProto[SOCK_BPF + 1][4] = { | /* SOCK_EXT */ |
| static void *rxEXTPacket(sched_task_t *); |
| static void *txEXTPacket(sched_task_t *); |
| |
| static sched_task_func_t cbProto[SOCK_MAX_SUPPORT][4] = { |
{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */ |
{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */ |
{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */ |
{ acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */ |
{ rxUDPPacket, freeClient, rxUDPPacket, txUDPPacket }, /* SOCK_DGRAM */ |
{ rxUDPPacket, freeClient, rxUDPPacket, txUDPPacket }, /* SOCK_DGRAM */ |
{ NULL, NULL, NULL, NULL }, /* SOCK_RAW */ |
{ NULL, NULL, NULL, NULL }, /* SOCK_RAW */ |
{ rxBPFPacket, freeClient, rxBPFPacket, txBPFPacket } /* SOCK_BPF */ | { rxBPFPacket, freeClient, rxBPFPacket, txBPFPacket }, /* SOCK_BPF */ |
| { rxEXTPacket, freeClient, rxEXTPacket, txEXTPacket } /* SOCK_EXT */ |
}; |
}; |
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/* Global Signal Argument when kqueue support disabled */ |
/* Global Signal Argument when kqueue support disabled */ |
Line 116 _allocClient(rpc_srv_t * __restrict srv, sockaddr_t *
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Line 121 _allocClient(rpc_srv_t * __restrict srv, sockaddr_t *
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rpc_cli_t *c = NULL; |
rpc_cli_t *c = NULL; |
int n; |
int n; |
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n = _check4freeslot(srv, sa); | if (srv->srv_proto != SOCK_EXT) |
| n = _check4freeslot(srv, sa); |
| else |
| n = 0; |
if (n == -1) |
if (n == -1) |
return NULL; |
return NULL; |
else |
else |
Line 800 end:
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Line 808 end:
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return NULL; |
return NULL; |
} |
} |
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static void * |
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txEXTPacket(sched_task_t *task) |
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{ |
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rpc_cli_t *c = TASK_ARG(task); |
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rpc_srv_t *s = c->cli_parent; |
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rpc_func_t *f = NULL; |
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u_char *buf = AIT_GET_BUF(&c->cli_buf); |
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struct tagRPCCall *rpc = (struct tagRPCCall*) buf; |
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int ret, estlen, wlen = sizeof(struct tagRPCCall); |
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struct timespec ts = { DEF_RPC_TIMEOUT, 0 }; |
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struct pollfd pfd; |
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schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, TASK_ARG(task), NULL); |
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schedTimer(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT], |
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TASK_ARG(task), ts, TASK_ARG(task), 0); |
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if (rpc->call_argc) { |
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f = rpc_srv_getCall(s, ntohs(rpc->call_tag)); |
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if (!f) { |
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rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server"); |
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rpc->call_argc ^= rpc->call_argc; |
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rpc->call_rep.ret = RPC_ERROR(-1); |
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rpc->call_rep.eno = RPC_ERROR(rpc_Errno); |
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} else { |
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/* calc estimated length */ |
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estlen = ait_resideVars(RPC_RETVARS(c)) + wlen; |
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if (estlen > AIT_LEN(&c->cli_buf)) |
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AIT_RE_BUF(&c->cli_buf, estlen); |
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buf = AIT_GET_BUF(&c->cli_buf); |
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rpc = (struct tagRPCCall*) buf; |
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rpc->call_argc = htons(array_Size(RPC_RETVARS(c))); |
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/* Go Encapsulate variables */ |
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ret = ait_vars2buffer(buf + wlen, AIT_LEN(&c->cli_buf) - wlen, |
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RPC_RETVARS(c)); |
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/* Free return values */ |
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ait_freeVars(&c->cli_vars); |
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if (ret == -1) { |
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rpc_SetErr(EBADRPC, "Prepare RPC packet failed"); |
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rpc->call_argc ^= rpc->call_argc; |
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rpc->call_rep.ret = RPC_ERROR(-1); |
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rpc->call_rep.eno = RPC_ERROR(rpc_Errno); |
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} else |
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wlen += ret; |
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} |
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} |
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rpc->call_len = htonl(wlen); |
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/* send reply */ |
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pfd.fd = TASK_FD(task); |
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pfd.events = POLLOUT; |
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for (; wlen > 0; wlen -= ret, buf += ret) { |
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if ((ret = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 || |
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pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
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if (ret) |
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LOGERR; |
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else |
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rpc_SetErr(ETIMEDOUT, "Timeout reached! Client not respond"); |
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/* close connection */ |
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schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT], |
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TASK_ARG(task), 0, NULL, 0); |
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return NULL; |
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} |
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ret = write(TASK_FD(task), buf, MIN(wlen, s->srv_netbuf)); |
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if (ret == -1) { |
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/* close connection */ |
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schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT], |
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TASK_ARG(task), 0, NULL, 0); |
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return NULL; |
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} |
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} |
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return NULL; |
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} |
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static void * |
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rxEXTPacket(sched_task_t *task) |
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{ |
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rpc_srv_t *srv = TASK_ARG(task); |
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rpc_cli_t *c = NULL; |
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int len, rlen, noreply, estlen; |
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u_char *buf, b[sizeof(struct tagRPCCall)]; |
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struct tagRPCCall *rpc = (struct tagRPCCall*) b; |
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struct timespec ts = { DEF_RPC_TIMEOUT, 0 }; |
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struct pollfd pfd; |
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/* receive connect packet */ |
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rlen = read(TASK_FD(task), b, sizeof b); |
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if (rlen < sizeof(struct tagRPCCall)) { |
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rpc_SetErr(ERPCMISMATCH, "Short RPC packet"); |
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goto end; |
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} |
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c = _allocClient(srv, (sockaddr_t*) -1); |
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if (!c) { |
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EVERBOSE(1, "RPC client quota exceeded! Connection will be shutdown!\n"); |
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usleep(2000); /* blocked client delay */ |
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goto end; |
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} else { |
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estlen = ntohl(rpc->call_len); |
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if (estlen > AIT_LEN(&c->cli_buf)) |
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AIT_RE_BUF(&c->cli_buf, estlen); |
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rpc = (struct tagRPCCall*) AIT_GET_BUF(&c->cli_buf); |
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memcpy(rpc, b, sizeof b); |
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buf = (u_char*) (rpc + 1); |
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len = estlen; |
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c->cli_sock = TASK_FD(task); |
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/* armed timer for close stateless connection */ |
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schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, c, NULL); |
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schedTimer(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT], |
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c, ts, c, 0); |
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} |
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/* get next part of packet */ |
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memset(buf, 0, len); |
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pfd.fd = TASK_FD(task); |
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pfd.events = POLLIN | POLLPRI; |
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for (; len > 0; len -= rlen, buf += rlen) { |
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if ((rlen = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 || |
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pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
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if (rlen) |
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LOGERR; |
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else |
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rpc_SetErr(ETIMEDOUT, "Timeout reached! Client not respond"); |
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schedEvent(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT], |
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c, 0, NULL, 0); |
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goto end; |
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} |
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rlen = read(TASK_FD(task), buf, len); |
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if (rlen == -1) { |
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/* close connection */ |
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schedEvent(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT], |
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c, 0, NULL, 0); |
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goto end; |
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} |
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} |
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len = estlen; |
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noreply = RPC_CHK_NOREPLY(rpc); |
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/* check RPC packet session info */ |
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if (rpc_chkPktSession(&rpc->call_session, &srv->srv_session)) { |
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rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session"); |
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rpc->call_argc ^= rpc->call_argc; |
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rpc->call_rep.ret = RPC_ERROR(-1); |
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rpc->call_rep.eno = RPC_ERROR(errno); |
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} else { |
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/* execute RPC call */ |
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schedEvent(TASK_ROOT(task), execCall, c, (int) noreply, rpc, len); |
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} |
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/* send RPC reply */ |
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if (!noreply) |
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schedWrite(TASK_ROOT(task), cbProto[srv->srv_proto][CB_TXPACKET], |
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c, TASK_FD(task), rpc, len); |
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end: |
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schedReadSelf(task); |
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return NULL; |
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} |
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/* ------------------------------------------------------ */ |
/* ------------------------------------------------------ */ |
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void |
void |
Line 1242 rpc_srv_initServer(u_char InstID, int concurentClients
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Line 1415 rpc_srv_initServer(u_char InstID, int concurentClients
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rpc_srv_t *srv = NULL; |
rpc_srv_t *srv = NULL; |
sockaddr_t sa = E_SOCKADDR_INIT; |
sockaddr_t sa = E_SOCKADDR_INIT; |
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if (!concurentClients || (proto < 0 || proto > SOCK_DGRAM)) { | if (!concurentClients || (proto < 0 || proto > SOCK_RAW)) { |
rpc_SetErr(EINVAL, "Invalid parameters can`t init RPC server"); |
rpc_SetErr(EINVAL, "Invalid parameters can`t init RPC server"); |
return NULL; |
return NULL; |
} |
} |
Line 1424 rpc_srv_loopServer(rpc_srv_t * __restrict srv)
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Line 1597 rpc_srv_loopServer(rpc_srv_t * __restrict srv)
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} |
} |
array_Destroy(&srv->srv_clients); |
array_Destroy(&srv->srv_clients); |
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close(srv->srv_server.cli_sock); | if (srv->srv_proto != SOCK_EXT) |
| close(srv->srv_server.cli_sock); |
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/* detach exported calls */ |
/* detach exported calls */ |
RPC_FUNCS_LOCK(&srv->srv_funcs); |
RPC_FUNCS_LOCK(&srv->srv_funcs); |
Line 1605 err: /* error condition */
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Line 1779 err: /* error condition */
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pthread_mutex_destroy(&srv->srv_funcs.mtx); |
pthread_mutex_destroy(&srv->srv_funcs.mtx); |
e_free(srv); |
e_free(srv); |
return NULL; |
return NULL; |
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} |
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/* |
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* rpc_srv_initServerExt() - Init & create pipe RPC Server |
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* |
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* @InstID = Instance for authentication & recognition |
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* @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet) |
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* @fd = File descriptor |
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* return: NULL == error or !=NULL bind and created RPC server instance |
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*/ |
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rpc_srv_t * |
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rpc_srv_initServerExt(u_char InstID, int netBuf, int fd) |
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{ |
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rpc_srv_t *srv = NULL; |
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#ifdef HAVE_SRANDOMDEV |
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srandomdev(); |
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#else |
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time_t tim; |
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srandom((time(&tim) ^ getpid())); |
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#endif |
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srv = e_malloc(sizeof(rpc_srv_t)); |
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if (!srv) { |
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LOGERR; |
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return NULL; |
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} else |
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memset(srv, 0, sizeof(rpc_srv_t)); |
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srv->srv_proto = SOCK_EXT; |
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srv->srv_netbuf = (netBuf < RPC_MIN_BUFSIZ) ? |
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getpagesize() : E_ALIGN(netBuf, 2); |
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srv->srv_session.sess_version = RPC_VERSION; |
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srv->srv_session.sess_instance = InstID; |
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srv->srv_server.cli_parent = srv; |
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srv->srv_server.cli_sock = fd; |
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/* init functions */ |
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pthread_mutex_init(&srv->srv_funcs.mtx, NULL); |
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SLIST_INIT(&srv->srv_funcs); |
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AVL_INIT(&srv->srv_funcs); |
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/* init scheduler */ |
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srv->srv_root = schedBegin(); |
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if (!srv->srv_root) { |
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rpc_SetErr(sched_GetErrno(), "%s", sched_GetError()); |
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pthread_mutex_destroy(&srv->srv_funcs.mtx); |
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e_free(srv); |
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return NULL; |
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} |
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/* init pool for clients */ |
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srv->srv_clients = array_Init(1); |
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if (!srv->srv_clients) { |
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rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError()); |
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schedEnd(&srv->srv_root); |
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pthread_mutex_destroy(&srv->srv_funcs.mtx); |
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e_free(srv); |
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return NULL; |
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} |
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fcntl(srv->srv_server.cli_sock, F_SETFL, |
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fcntl(srv->srv_server.cli_sock, F_GETFL) | O_NONBLOCK); |
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rpc_register_srvPing(srv); |
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return srv; |
} |
} |