Annotation of OpenXM_contrib2/asir2000/io/sio.c, Revision 1.9.2.2
1.5 noro 1: /*
2: * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
3: * All rights reserved.
4: *
5: * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
6: * non-exclusive and royalty-free license to use, copy, modify and
7: * redistribute, solely for non-commercial and non-profit purposes, the
8: * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
9: * conditions of this Agreement. For the avoidance of doubt, you acquire
10: * only a limited right to use the SOFTWARE hereunder, and FLL or any
11: * third party developer retains all rights, including but not limited to
12: * copyrights, in and to the SOFTWARE.
13: *
14: * (1) FLL does not grant you a license in any way for commercial
15: * purposes. You may use the SOFTWARE only for non-commercial and
16: * non-profit purposes only, such as academic, research and internal
17: * business use.
18: * (2) The SOFTWARE is protected by the Copyright Law of Japan and
19: * international copyright treaties. If you make copies of the SOFTWARE,
20: * with or without modification, as permitted hereunder, you shall affix
21: * to all such copies of the SOFTWARE the above copyright notice.
22: * (3) An explicit reference to this SOFTWARE and its copyright owner
23: * shall be made on your publication or presentation in any form of the
24: * results obtained by use of the SOFTWARE.
25: * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
1.6 noro 26: * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.5 noro 27: * for such modification or the source code of the modified part of the
28: * SOFTWARE.
29: *
30: * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
31: * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
32: * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
33: * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
34: * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
35: * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
36: * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
37: * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
38: * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
39: * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
40: * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
41: * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
42: * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
43: * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
44: * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
45: * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
46: * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
1.9.2.2 ! maekawa 47: * $OpenXM: OpenXM_contrib2/asir2000/io/sio.c,v 1.9.2.1 2000/11/08 08:18:14 maekawa Exp $
1.5 noro 48: */
1.1 noro 49: #if INET
50: #include "ca.h"
1.3 noro 51: #include "setjmp.h"
1.1 noro 52: #include "ox.h"
53: #if defined(VISUAL)
54: #include <winsock.h>
55: #else
56: #include <sys/time.h>
57: #include <sys/uio.h>
58: #include <sys/ioctl.h>
59: #include <sys/un.h>
60: #endif
61: #include<signal.h>
62:
63: #define SOCKQUEUELENGTH 5
64: #define ISIZ sizeof(int)
65:
66: extern int little_endian;
67:
1.9 noro 68: int I_am_server;
1.1 noro 69: struct IOFP iofp[MAXIOFP];
70:
71: #if !defined(_PA_RISC1_1)
72: #define RSH "rsh"
73: #else
74: #define RSH "remsh"
75: #endif
76:
77: void init_socket(void);
78:
79: int getremotesocket(s)
80: int s;
81: {
82: return iofp[s].s;
83: }
84:
85: void getremotename(s,name)
86: int s;
87: char *name;
88: {
1.9.2.1 maekawa 89: union {
90: struct sockaddr sa;
91: char data[SOCK_MAXADDRLEN];
92: } dummy;
93: struct sockaddr *sa;
94: socklen_t len;
95: char host[NI_MAXHOST];
96: int rs;
97:
98: rs = getremotesocket(s);
99: len = SOCK_MAXADDRLEN;
100: getpeername(rs, (struct sockaddr *)dummy.data, &len);
101: sa = &(dummy.sa);
102: getnameinfo(sa, sa->sa_len, host, sizeof(host), NULL, 0, 0);
103: strcpy(name, host);
1.1 noro 104: }
105:
106: int generate_port(use_unix,port_str)
107: int use_unix;
108: char *port_str;
109: {
110: double get_current_time();
111: unsigned long mt_genrand();
112: unsigned int port;
113: static int count=0;
114:
1.8 noro 115: #if !defined(VISUAL)
1.1 noro 116: if ( use_unix ) {
117: sprintf(port_str,"/tmp/ox%02x.XXXXXX",count);
118: count++;
119: mktemp(port_str);
1.8 noro 120: } else
121: #endif
122: {
1.1 noro 123: port = ((unsigned int)mt_genrand()+(unsigned int)get_current_time())
124: %(65536-1024)+1024;
125: sprintf(port_str,"%d",port);
126: }
127: }
128:
129: int try_bind_listen(use_unix,port_str)
130: int use_unix;
131: char *port_str;
132: {
1.9.2.1 maekawa 133: struct addrinfo hints, *res, *ai;
134: int s, error;
135: char *errstr;
1.1 noro 136:
1.9.2.1 maekawa 137: memset(&hints, 0, sizeof(hints));
138: #if defined(VISUAL)
139: hints.ai_family = PF_UNSPEC;
1.1 noro 140: #else
1.9.2.1 maekawa 141: if (use_unix)
142: hints.ai_family = PF_UNIX;
143: else
144: hints.ai_family = PF_UNSPEC;
145: #endif /* VISUAL */
146: hints.ai_socktype = SOCK_STREAM;
147:
148: error = getaddrinfo(NULL, port_str, &hints, &res);
149: if (error) {
150: warnx("try_bind_listen(): %s", gai_strerror(error));
151: return (-1);
152: }
153:
154: for (ai = res ; ai != NULL ; ai = ai->ai_next) {
155: if ((s = socket(ai->ai_family, ai->ai_socktype,
156: ai->ai_protocol)) < 0 ) {
157: errstr = "in socket";
158: continue;
159: }
160:
161: if (bind(s, ai->ai_addr, ai->ai_addrlen) < 0) {
162: errstr = "in bind";
163: close(s);
164: s = -1;
165: continue;
166: }
167:
168: if (listen(s, SOCKQUEUELENGTH) < 0) {
169: errstr = "in listen";
170: close(s);
171: s = -1;
172: continue;
173: }
174:
175: /* established connection */
176: break;
1.1 noro 177: }
1.9.2.1 maekawa 178: freeaddrinfo(res);
179:
180: if (s < 0)
181: perror(errstr);
182: return (s);
1.1 noro 183: }
184:
185: /*
186: try to accept a connection request
187:
188: Input
189: s: socket
190:
191: Output
192: c: an accepted socket which is newly created
193: -1: if failed to accept
194:
195: the original socket is always closed.
196: */
197:
1.9.2.2 ! maekawa 198: int try_accept(s)
! 199: int s;
1.1 noro 200: {
1.9.2.1 maekawa 201: union {
202: struct sockaddr sa;
203: char data[SOCK_MAXADDRLEN];
204: } dummy;
205: socklen_t len;
206: int c, i;
207:
208: len = SOCK_MAXADDRLEN;
209: if (getsockname(s, (struct sockaddr *)dummy.data, &len) < 0) {
210: close(s);
211: return (-1)
212: }
213:
214: for (i = 0 ; i < 10 ; i++) {
215: c = accept(s, &(dummy.sa), &len);
216: if (c >= 0) {
217: close(s);
218: return (c);
219: }
1.1 noro 220: }
1.9.2.1 maekawa 221:
1.1 noro 222: close(s);
1.9.2.1 maekawa 223: return (-1);
1.1 noro 224: }
225:
226: int try_connect(use_unix,host,port_str)
227: int use_unix;
228: char *host,*port_str;
229: {
1.9.2.1 maekawa 230: struct addrinfo hints, *res, *ai;
231: int s, error, i;
232: char *errstr;
1.1 noro 233:
1.9.2.1 maekawa 234: memset(&hints, 0, sizeof(hints));
235: #if defined(VISUAL)
236: hints.ai_family = PF_UNSPEC;
1.1 noro 237: #else
1.9.2.1 maekawa 238: if (use_unix)
239: hints.ai_family = PF_UNIX;
240: else
241: hints.ai_family = PF_UNSPEC;
1.2 noro 242: #endif /* VISUAL */
1.9.2.1 maekawa 243: hints.ai_socktype = SOCK_STREAM;
244:
245: error = getaddrinfo(host, port_str, &hints, &res);
246: if (error) {
247: warnx("try_connect: %s", gai_strerror(error));
248: return (-1);
249: }
250: for (i = 0 ; i < 10 ; i++) {
251: for (ai = res ; ai != NULL ; ai = ai->ai_next) {
252: if ((s = socket(ai->ai_family, ai->ai_socktype,
253: ai->ai_protocol)) < 0 ) {
254: errstr = "socket";
255: continue;
1.1 noro 256: }
1.9.2.1 maekawa 257: if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
258: errstr = "connect";
259: close(s);
260: s = -1;
261: continue;
1.1 noro 262: }
1.9.2.1 maekawa 263:
264: /* established a connection */
1.1 noro 265: break;
1.9.2.1 maekawa 266: }
267:
268: if (s >= 0) {
269: freeaddrinfo(res);
270: return (s);
271: }
272:
1.2 noro 273: #if defined(VISUAL)
1.9.2.1 maekawa 274: Sleep(100);
1.2 noro 275: #else
1.9.2.1 maekawa 276: usleep(100000);
1.2 noro 277: #endif
1.1 noro 278: }
1.9.2.1 maekawa 279: freeaddrinfo(res);
280:
281: perror(errstr);
282: return (-1);
1.1 noro 283: }
284:
1.9 noro 285: #if 0
1.1 noro 286: close_allconnections()
287: {
288: int s;
289:
290: #if defined(SIGPIPE)
291: signal(SIGPIPE,SIG_IGN);
292: #endif
293: for ( s = 0; s < MAXIOFP; s++ )
294: close_connection(s);
295: }
296:
297: close_connection(s)
298: int s;
299: {
300: struct IOFP *r;
301:
302: r = &iofp[s];
303: if ( r->in && r->out ) {
304: if ( check_sm_by_mc(s,SM_shutdown) )
305: ox_send_cmd(s,SM_shutdown);
306: free_iofp(s);
307: }
308: }
1.9 noro 309: #else
310: close_allconnections()
311: {
312: shutdown_all();
313: }
314: #endif
1.1 noro 315:
316: free_iofp(s)
317: int s;
318: {
319: struct IOFP *r;
320:
321: r = &iofp[s];
322: r->in = r->out = 0; r->s = 0;
323: #if !defined(VISUAL)
324: if ( r->socket )
325: unlink(r->socket);
326: #endif
327: }
328:
329: #define LBUFSIZ BUFSIZ*10
330:
331: int get_iofp(s1,af_sock,is_server)
332: int s1;
333: char *af_sock;
334: int is_server;
335: {
336: int i;
337: unsigned char c,rc;
1.4 noro 338: extern int mpi_myid;
1.1 noro 339:
1.4 noro 340: #if MPI
341: iofp[s1].s = s1;
342: if ( mpi_myid == s1 ) {
343: iofp[s1].in = 0;
344: iofp[s1].out = 0;
345: } else {
346: iofp[s1].in = WSIO_open(s1,"r");
347: iofp[s1].out = WSIO_open(s1,"w");
348: }
349: iofp[s1].conv = 0;
350: iofp[s1].socket = 0;
351:
352: return s1;
353: #else
1.1 noro 354: for ( i = 0; i < MAXIOFP; i++ )
355: if ( !iofp[i].in )
356: break;
357: iofp[i].s = s1;
1.4 noro 358: #if defined(VISUAL)
1.1 noro 359: iofp[i].in = WSIO_open(s1,"r");
360: iofp[i].out = WSIO_open(s1,"w");
361: #else
362: iofp[i].in = fdopen(s1,"r");
363: iofp[i].out = fdopen(s1,"w");
364: setbuffer(iofp[i].in,(char *)malloc(LBUFSIZ),LBUFSIZ);
365: setbuffer(iofp[i].out,(char *)malloc(LBUFSIZ),LBUFSIZ);
366: #endif
367: if ( little_endian )
368: c = 1;
369: else
370: c = 0xff;
371: if ( is_server ) {
372: /* server : write -> read */
373: write_char(iofp[i].out,&c); ox_flush_stream_force(i);
374: read_char(iofp[i].in,&rc);
375: } else {
376: /* client : read -> write */
377: read_char(iofp[i].in,&rc);
1.7 noro 378: /* special care for a failure of spawing a server */
379: if ( rc !=0 && rc != 1 && rc != 0xff )
380: return -1;
1.1 noro 381: write_char(iofp[i].out,&c); ox_flush_stream_force(i);
382: }
383: iofp[i].conv = c == rc ? 0 : 1;
384: if ( af_sock && af_sock[0] ) {
385: iofp[i].socket = (char *)malloc(strlen(af_sock)+1);
386: strcpy(iofp[i].socket,af_sock);
387: } else
388: iofp[i].socket = 0;
1.4 noro 389: return i;
1.1 noro 390: #endif
391: }
392:
393: #if defined(VISUAL)
394: void init_socket()
395: {
396: static int socket_is_initialized;
397: WORD wVersionRequested;
398: WSADATA wsaData;
399: int err;
400: wVersionRequested = MAKEWORD(2,0);
401:
402: if ( socket_is_initialized )
403: return;
404: err = WSAStartup(wVersionRequested,&wsaData);
405: if ( err )
406: return;
407: }
408: #endif
409:
410: get_fd(index)
411: int index;
412: {
413: return iofp[index].s;
414: }
415:
416: get_index(fd)
417: int fd;
418: {
419: int i;
420:
421: for ( i = 0; i < MAXIOFP; i++ )
422: if ( iofp[i].s == fd )
423: return i;
424: return -1;
425: }
1.9 noro 426:
1.1 noro 427: #endif /* INET */
1.9 noro 428:
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