Annotation of parser3/src/main/pa_common.C, revision 1.118
1.15 paf 1: /** @file
1.16 paf 2: Parser: commonly functions.
3:
1.102 paf 4: Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
1.101 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.111 paf 6: */
1.16 paf 7:
1.118 ! paf 8: static const char* IDENT_COMMON_C="$Date: 2002/08/15 12:05:36 $";
1.1 paf 9:
10: #include "pa_common.h"
1.4 paf 11: #include "pa_exception.h"
1.14 paf 12: #include "pa_globals.h"
1.1 paf 13:
1.98 paf 14: #ifdef WIN32
15: # include <windows.h>
16: #endif
17:
1.93 paf 18: // some maybe-undefined constants
19:
1.82 paf 20: #ifndef _O_TEXT
21: # define _O_TEXT 0
22: #endif
23: #ifndef _O_BINARY
24: # define _O_BINARY 0
1.47 paf 25: #endif
1.80 paf 26: #ifndef O_TRUNC
27: # define O_TRUNC 0
28: #endif
29:
1.93 paf 30: // locking constants
31:
1.99 paf 32: #ifdef HAVE_FLOCK
33:
34: static int lock_shared_blocking(int fd) { return flock(fd, LOCK_SH); }
35: static int lock_exclusive_blocking(int fd) { return flock(fd, LOCK_EX); }
36: static int lock_exclusive_nonblocking(int fd) { return flock(fd, LOCK_EX || LOCK_NB); }
37: static int unlock(int fd) { return flock(fd, LOCK_UN); }
38:
1.98 paf 39: #else
1.99 paf 40: #ifdef HAVE__LOCKING
1.98 paf 41:
1.99 paf 42: #define FLOCK(operation) lseek(fd, 0, SEEK_SET); return _locking(fd, operation, 1)
43: static int lock_shared_blocking(int fd) { FLOCK(_LK_LOCK); }
44: static int lock_exclusive_blocking(int fd) { FLOCK(_LK_LOCK); }
45: static int lock_exclusive_nonblocking(int fd) { FLOCK(_LK_NBLCK); }
46: static int unlock(int fd) { FLOCK(_LK_UNLCK); }
1.93 paf 47:
1.99 paf 48: #else
49: #ifdef HAVE_FCNTL
1.93 paf 50:
1.99 paf 51: #define FLOCK(cmd, arg) struct flock ls={arg, SEEK_SET}; return fcntl(fd, cmd, &ls)
52: static int lock_shared_blocking(int fd) { FLOCK(F_SETLKW, F_RDLCK); }
53: static int lock_exclusive_blocking(int fd) { FLOCK(F_SETLKW, F_WRLCK); }
54: static int lock_exclusive_nonblocking(int fd) { FLOCK(F_SETLK, F_RDLCK); }
55: static int unlock(int fd) { FLOCK(F_SETLK, F_UNLCK); }
1.93 paf 56:
57: #else
58: #ifdef HAVE_LOCKF
1.99 paf 59:
60: #define FLOCK(fd, operation) lseek(fd, 0, SEEK_SET); return lockf(fd, operation, 1)
61: static int lock_shared_blocking(int fd) { FLOCK(F_LOCK); } // on intel solaris man doesn't have doc on shared blocking
62: static int lock_exclusive_blocking(int fd) { FLOCK(F_LOCK); }
63: static int lock_exclusive_nonblocking(int fd) { FLOCK(F_TLOCK); }
64: static int unlock(int fd) { FLOCK(F_TLOCK); }
65:
1.93 paf 66: #else
1.99 paf 67:
68: #error unable to find file locking func
69:
70: #endif
1.93 paf 71: #endif
72: #endif
73: #endif
74:
1.86 paf 75: static char *strnchr(char *buf, size_t size, char c) {
1.103 paf 76: // sanity check
77: if(!buf)
78: return 0;
79:
1.86 paf 80: for(; size-->0; buf++) {
81: if(*buf==c)
82: return buf;
83: }
84:
85: return 0;
86: }
87:
88: void fix_line_breaks(char *buf, size_t& size) {
1.87 paf 89: //_asm int 3;
1.86 paf 90: const char * const eob=buf+size;
1.87 paf 91: char *dest=buf;
1.72 parser 92: // fix DOS: \r\n -> \n
93: // fix Macintosh: \r -> \n
1.87 paf 94: char *bol=buf;
1.86 paf 95: while(char *eol=strnchr(bol, eob -bol, '\r')) {
1.72 parser 96: size_t len=eol-bol;
97: if(dest!=bol)
98: memcpy(dest, bol, len);
99: dest+=len;
100: *dest++='\n';
101:
1.87 paf 102: if(&eol[1]<eob && eol[1]=='\n') { // \r,\n = DOS
1.72 parser 103: bol=eol+2;
104: size--;
105: } else // \r,not \n = Macintosh
106: bol=eol+1;
107: }
108: // last piece without \r, including terminating 0
109: if(dest!=bol)
1.87 paf 110: memcpy(dest, bol, eob-bol);
1.72 parser 111: }
1.18 paf 112:
1.28 paf 113: char *file_read_text(Pool& pool, const String& file_spec, bool fail_on_read_problem) {
1.72 parser 114: void *result; size_t size;
115: return file_read(pool, file_spec, result, size, true, fail_on_read_problem)?(char *)result:0;
1.34 paf 116: }
117: bool file_read(Pool& pool, const String& file_spec,
1.87 paf 118: void*& data, size_t& data_size, bool as_text,
1.44 paf 119: bool fail_on_read_problem,
120: size_t offset, size_t limit) {
1.64 parser 121: const char *fname=file_spec.cstr(String::UL_FILE_SPEC);
1.33 paf 122: int f;
1.2 paf 123: struct stat finfo;
1.33 paf 124:
125: // first open, next stat:
1.45 paf 126: // directory update of NTFS hard links performed on open.
1.33 paf 127: // ex:
128: // a.html:^test[] and b.html hardlink to a.html
129: // user inserts ! before ^test in a.html
130: // directory entry of b.html in NTFS not updated at once,
1.35 paf 131: // they delay update till open, so we would receive "!^test[" string
132: // if would do stat, next open.
1.98 paf 133: if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) {
1.110 paf 134: if(lock_shared_blocking(f)!=0) {
135: Exception e("file.lock",
136: &file_spec,
137: "shared lock failed: %s (%d), actual filename '%s'",
138: strerror(errno), errno, fname);
139: unlock(f);
140: close(f);
141: if(fail_on_read_problem)
142: throw e;
143: return false;
144: }
1.98 paf 145: if(stat(fname, &finfo)!=0) {
1.106 paf 146: Exception e("file.missing",
1.98 paf 147: &file_spec,
148: "stat failed: %s (%d), actual filename '%s'",
149: strerror(errno), errno, fname);
1.99 paf 150: unlock(f);
1.98 paf 151: close(f);
152: if(fail_on_read_problem)
153: throw e;
154: return false;
155: }
1.105 paf 156: #ifdef NO_FOREIGN_GROUP_FILES
157: if(finfo.st_gid/*foreign?*/!=getegid()) {
1.107 paf 158: Exception e("parser.runtime",
1.105 paf 159: &file_spec,
160: "parser reading files of foreign group disabled [recompile parser without --disable-foreign-group-files configure option], actual filename '%s'",
161: fname);
162: unlock(f);
163: close(f);
164: if(fail_on_read_problem)
165: throw e;
166: return false;
167: }
168: #endif
1.98 paf 169: size_t max_size=limit?min(offset+limit, (size_t)finfo.st_size)-offset:finfo.st_size;
1.47 paf 170: if(!max_size) { // eof
1.83 paf 171: if(as_text) {
172: data=pool.malloc(1);
173: *(char*)data=0;
174: } else
175: data=0;
1.98 paf 176: data_size=0;
1.59 parser 177: } else {
1.78 paf 178: data=pool.malloc(max_size+(as_text?1:0), 3);
1.59 parser 179: if(offset)
180: lseek(f, offset, SEEK_SET);
1.98 paf 181: data_size=read(f, data, max_size);
1.47 paf 182: }
1.99 paf 183: unlock(f);
1.2 paf 184: close(f);
1.59 parser 185: if(!max_size) // eof
186: return true;
1.32 paf 187:
1.98 paf 188: if(int(data_size)<0 || data_size>max_size)
1.106 paf 189: throw Exception(0,
1.33 paf 190: &file_spec,
1.44 paf 191: "read failed: actually read %d bytes count not in [0..%lu] valid range",
1.98 paf 192: data_size, (unsigned long)max_size); //never
1.87 paf 193:
194: if(as_text) {
195: fix_line_breaks((char *)data, data_size);
196: // note: after fixing
197: ((char*&)data)[data_size]=0;
198: }
1.72 parser 199: return true;
1.118 ! paf 200: } else {
! 201: if(fail_on_read_problem)
! 202: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
! 203: &file_spec,
! 204: "read failed: %s (%d), actual filename '%s'",
! 205: strerror(errno), errno, fname);
! 206: return false;
! 207: }
1.8 paf 208: }
209:
1.63 parser 210: static void create_dir_for_file(const String& file_spec) {
211: size_t pos_after=1;
212: int pos_before;
213: while((pos_before=file_spec.pos("/", 1, pos_after))>=0) {
1.64 parser 214: mkdir(file_spec.mid(0, pos_before).cstr(String::UL_FILE_SPEC), 0775);
1.63 parser 215: pos_after=pos_before+1;
216: }
217: }
218:
1.98 paf 219: bool file_write_action_under_lock(
1.28 paf 220: const String& file_spec,
1.96 paf 221: const char *action_name, void (*action)(int, void *), void *context,
1.80 paf 222: bool as_text,
1.98 paf 223: bool do_append,
1.110 paf 224: bool do_block,
225: bool fail_on_lock_problem) {
1.64 parser 226: const char *fname=file_spec.cstr(String::UL_FILE_SPEC);
1.28 paf 227: int f;
1.80 paf 228: if(access(fname, W_OK)!=0) // no
1.63 parser 229: create_dir_for_file(file_spec);
1.50 paf 230:
1.80 paf 231: if((f=open(fname,
232: O_CREAT|O_RDWR
233: |(as_text?_O_TEXT:_O_BINARY)
1.104 paf 234: |(do_append?O_APPEND:O_TRUNC), 0664))>=0) {
1.99 paf 235: if((do_block?lock_exclusive_blocking(f):lock_exclusive_nonblocking(f))!=0) {
1.110 paf 236: Exception e("file.lock",
237: &file_spec,
238: "shared lock failed: %s (%d), actual filename '%s'",
239: strerror(errno), errno, fname);
1.98 paf 240: close(f);
1.110 paf 241: if(fail_on_lock_problem)
242: throw e;
1.98 paf 243: return false;
244: }
1.96 paf 245:
246: try {
247: action(f, context);
248: } catch(...) {
1.98 paf 249: #if O_TRUNC==0
1.104 paf 250: if(!do_append)
251: ftruncate(f, tell(f));
1.98 paf 252: #endif
1.99 paf 253: unlock(f);
1.96 paf 254: close(f);
255: /*re*/throw;
256: }
1.80 paf 257:
1.98 paf 258: #if O_TRUNC==0
1.104 paf 259: if(!do_append)
260: ftruncate(f, tell(f));
1.98 paf 261: #endif
1.99 paf 262: unlock(f);
1.80 paf 263: close(f);
1.98 paf 264: return true;
1.80 paf 265: } else
1.106 paf 266: throw Exception(errno==EACCES?"file.access":0,
1.80 paf 267: &file_spec,
1.96 paf 268: "%s failed: %s (%d), actual filename '%s'",
269: action_name, strerror(errno), errno, fname);
270: // here should be nothing, see rethrow above
271: }
272:
273: #ifndef DOXYGEN
274: struct File_write_action_info {
275: const void *data; size_t size;
276: };
277: #endif
278: static void file_write_action(int f, void *context) {
279: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
1.113 paf 280: if(info.size) {
1.116 paf 281: int written=write(f, info.data, info.size);
282: if(written<0)
1.113 paf 283: throw Exception(0,
284: 0,
1.115 paf 285: "write failed: %s (%d)", strerror(errno), errno);
1.113 paf 286: }
1.96 paf 287: }
288: void file_write(
289: const String& file_spec,
290: const void *data, size_t size,
291: bool as_text,
292: bool do_append) {
293: File_write_action_info info={data, size};
1.98 paf 294: file_write_action_under_lock(
1.96 paf 295: file_spec,
296: "write", file_write_action, &info,
297: as_text,
298: do_append);
1.30 paf 299: }
300:
1.63 parser 301: // throws nothing! [this is required in file_move & file_delete]
1.50 paf 302: static void rmdir(const String& file_spec, size_t pos_after) {
303: int pos_before;
304: if((pos_before=file_spec.pos("/", 1, pos_after))>=0)
305: rmdir(file_spec, pos_before+1);
306:
1.64 parser 307: rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::UL_FILE_SPEC));
1.50 paf 308: }
1.95 paf 309: bool file_delete(const String& file_spec, bool fail_on_read_problem) {
1.64 parser 310: const char *fname=file_spec.cstr(String::UL_FILE_SPEC);
1.54 parser 311: if(unlink(fname)!=0)
1.93 paf 312: if(fail_on_read_problem)
1.106 paf 313: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.93 paf 314: &file_spec,
315: "unlink failed: %s (%d), actual filename '%s'",
316: strerror(errno), errno, fname);
317: else
318: return false;
1.50 paf 319:
320: rmdir(file_spec, 1);
1.93 paf 321: return true;
1.60 parser 322: }
1.95 paf 323: void file_move(const String& old_spec, const String& new_spec) {
1.64 parser 324: const char *old_spec_cstr=old_spec.cstr(String::UL_FILE_SPEC);
325: const char *new_spec_cstr=new_spec.cstr(String::UL_FILE_SPEC);
1.63 parser 326:
327: create_dir_for_file(new_spec);
328:
1.60 parser 329: if(rename(old_spec_cstr, new_spec_cstr)!=0)
1.106 paf 330: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.60 parser 331: &old_spec,
332: "rename failed: %s (%d), actual filename '%s' to '%s'",
333: strerror(errno), errno, old_spec_cstr, new_spec_cstr);
1.63 parser 334:
335: rmdir(old_spec, 1);
1.31 paf 336: }
337:
1.51 paf 338:
1.118 ! paf 339: bool entry_exists(const char *fname, struct stat *afinfo) {
! 340: struct stat lfinfo;
! 341: bool result=stat(fname, &lfinfo)==0;
! 342: if(afinfo)
! 343: *afinfo=lfinfo;
! 344: return result;
! 345: }
! 346:
1.51 paf 347: static bool entry_readable(const String& file_spec, bool need_dir) {
1.64 parser 348: const char *fname=file_spec.cstr(String::UL_FILE_SPEC);
1.51 paf 349: struct stat finfo;
1.118 ! paf 350: if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) {
1.109 paf 351: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
1.51 paf 352: return is_dir==need_dir;
353: }
354: return false;
355: }
1.31 paf 356: bool file_readable(const String& file_spec) {
1.51 paf 357: return entry_readable(file_spec, false);
358: }
359: bool dir_readable(const String& file_spec) {
360: return entry_readable(file_spec, true);
1.65 parser 361: }
362: String *file_readable(const String& path, const String& name) {
363: String *result=new(path.pool()) String(path);
364: *result << "/";
365: *result << name;
366: return file_readable(*result)?result:0;
1.43 paf 367: }
368: bool file_executable(const String& file_spec) {
1.64 parser 369: return access(file_spec.cstr(String::UL_FILE_SPEC), X_OK)==0;
1.44 paf 370: }
371:
1.64 parser 372: bool file_stat(const String& file_spec,
1.58 parser 373: size_t& rsize,
374: time_t& ratime,
375: time_t& rmtime,
1.64 parser 376: time_t& rctime,
377: bool fail_on_read_problem) {
1.44 paf 378: Pool& pool=file_spec.pool();
1.64 parser 379: const char *fname=file_spec.cstr(String::UL_FILE_SPEC);
1.44 paf 380: struct stat finfo;
381: if(stat(fname, &finfo)!=0)
1.64 parser 382: if(fail_on_read_problem)
1.106 paf 383: throw Exception("file.missing",
1.67 parser 384: &file_spec,
385: "getting file size failed: %s (%d), real filename '%s'",
386: strerror(errno), errno, fname);
1.64 parser 387: else
388: return false;
1.58 parser 389: rsize=finfo.st_size;
390: ratime=finfo.st_atime;
391: rmtime=finfo.st_mtime;
392: rctime=finfo.st_ctime;
1.64 parser 393: return true;
1.18 paf 394: }
395:
1.8 paf 396: char *getrow(char **row_ref, char delim) {
397: char *result=*row_ref;
398: if(result) {
399: *row_ref=strchr(result, delim);
400: if(*row_ref)
401: *((*row_ref)++)=0;
402: else if(!*result)
403: return 0;
404: }
405: return result;
406: }
407:
1.23 paf 408: char *lsplit(char *string, char delim) {
409: if(string) {
410: char *v=strchr(string, delim);
1.8 paf 411: if(v) {
412: *v=0;
413: return v+1;
414: }
415: }
416: return 0;
417: }
418:
419: char *lsplit(char **string_ref, char delim) {
420: char *result=*string_ref;
421: char *next=lsplit(*string_ref, delim);
422: *string_ref=next;
423: return result;
1.9 paf 424: }
425:
426: char *rsplit(char *string, char delim) {
1.18 paf 427: if(string) {
1.9 paf 428: char *v=strrchr(string, delim);
1.18 paf 429: if(v) {
1.9 paf 430: *v=0;
431: return v+1;
432: }
433: }
434: return NULL;
1.10 paf 435: }
436:
1.37 paf 437: /// @todo less stupid type detection
1.10 paf 438: char *format(Pool& pool, double value, char *fmt) {
1.108 paf 439: char local_buf[MAX_NUMBER];
440: size_t size;
441:
1.10 paf 442: if(fmt)
443: if(strpbrk(fmt, "diouxX"))
444: if(strpbrk(fmt, "ouxX"))
1.108 paf 445: size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value);
1.10 paf 446: else
1.108 paf 447: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value);
1.10 paf 448: else
1.108 paf 449: size=snprintf(local_buf, sizeof(local_buf), fmt, value);
1.10 paf 450: else
1.108 paf 451: size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value);
1.10 paf 452:
1.108 paf 453: char *pool_buf=(char *)pool.malloc(size+1, 4);
454: memcpy(pool_buf, local_buf, size+1);
455: return pool_buf;
1.12 paf 456: }
457:
1.36 paf 458: size_t stdout_write(const void *buf, size_t size) {
1.12 paf 459: #ifdef WIN32
460: do{
461: int chunk_written=fwrite(buf, 1, min(8*0x400, size), stdout);
462: if(chunk_written<=0)
463: break;
464: size-=chunk_written;
1.36 paf 465: buf=((const char*)buf)+chunk_written;
1.12 paf 466: } while(size>0);
467:
468: return size;
469: #else
1.13 paf 470: return fwrite(buf, 1, size, stdout);
1.12 paf 471: #endif
1.2 paf 472: }
1.14 paf 473:
1.77 parser 474: char *unescape_chars(Pool& pool, const char *cp, int len) {
1.78 paf 475: char *s=(char *)pool.malloc(len + 1, 5);
1.14 paf 476: enum EscapeState {
1.33 paf 477: EscapeRest,
478: EscapeFirst,
1.14 paf 479: EscapeSecond
480: } escapeState=EscapeRest;
481: int escapedValue=0;
482: int srcPos=0;
483: int dstPos=0;
484: while(srcPos < len) {
485: int ch=cp[srcPos];
486: switch(escapeState) {
487: case EscapeRest:
488: if(ch=='%') {
489: escapeState=EscapeFirst;
490: } else if(ch=='+') {
491: s[dstPos++]=' ';
492: } else {
493: s[dstPos++]=ch;
494: }
495: break;
496: case EscapeFirst:
497: escapedValue=hex_value[ch] << 4;
498: escapeState=EscapeSecond;
499: break;
500: case EscapeSecond:
501: escapedValue +=hex_value[ch];
502: s[dstPos++]=escapedValue;
503: escapeState=EscapeRest;
504: break;
505: }
506: srcPos++;
507: }
508: s[dstPos]=0;
509: return s;
1.24 paf 510: }
511:
512: #ifdef WIN32
513: void back_slashes_to_slashes(char *s) {
514: if(s)
515: for(; *s; s++)
516: if(*s=='\\')
517: *s='/';
518: }
1.42 paf 519: /*
520: void slashes_to_back_slashes(char *s) {
521: if(s)
522: for(; *s; s++)
523: if(*s=='/')
524: *s='\\';
525: }
526: */
1.24 paf 527: #endif
1.41 paf 528:
529: bool StrEqNc(const char *s1, const char *s2, bool strict) {
530: while(true) {
531: if(!(*s1)) {
532: if(!(*s2))
533: return true;
534: else
535: return !strict;
536: } else if(!(*s2))
537: return !strict;
538: if(isalpha(*s1)) {
539: if(tolower(*s1) !=tolower(*s2))
540: return false;
541: } else if((*s1) !=(*s2))
542: return false;
543: s1++;
544: s2++;
545: }
1.57 parser 546: }
547:
1.84 paf 548: static bool isLeap(int year) {
1.57 parser 549: return !(
550: (year % 4) || ((year % 400) && !(year % 100))
551: );
552: }
553:
554: int getMonthDays(int year, int month) {
555: int monthDays[]={
556: 31,
557: isLeap(year) ? 29 : 28,
558: 31,
559: 30,
560: 31,
561: 30,
562: 31,
563: 31,
564: 30,
565: 31,
566: 30,
567: 31
568: };
569: return monthDays[month];
1.41 paf 570: }
1.69 parser 571:
572: void remove_crlf(char *start, char *end) {
573: for(char *p=start; p<end; p++)
574: switch(*p) {
575: case '\n': *p='|'; break;
576: case '\r': *p=' '; break;
577: }
1.91 paf 578: }
579:
580:
581: /// must be last in this file
582: #undef vsnprintf
583: int __vsnprintf(char *b, size_t s, const char *f, va_list l) {
584: if(!s)
585: return 0;
586:
587: int r;
588: // note: on win32& maybe somewhere else
589: // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
590: --s;
591: #if _MSC_VER
592: /*
593: win32:
594: mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm
595:
596: if the number of bytes to write exceeds buffer, then count bytes are written and –1 is returned
597: */
598: r=_vsnprintf(b, s, f, l);
599: if(r<0)
600: r=s;
601: #else
602: r=vsnprintf(b, s, f, l);
603: /*
604: solaris:
605: man vsnprintf
606:
607: The snprintf() function returns the number of characters
608: formatted, that is, the number of characters that would have
609: been written to the buffer if it were large enough. If the
610: value of n is 0 on a call to snprintf(), an unspecified
611: value less than 1 is returned.
612: */
613:
614: if(r<0)
615: r=0;
616: else if(r>s)
617: r=s;
618: #endif
619: b[r]=0;
620: return r;
621: }
622:
623: int __snprintf(char *b, size_t s, const char *f, ...) {
624: va_list l;
625: va_start(l, f);
626: int r=__vsnprintf(b, s, f, l);
627: va_end(l);
628: return r;
1.98 paf 629: }
630:
631: int pa_sleep(unsigned long secs, unsigned long usecs) {
632: for (; usecs >= 1000000; ++secs, usecs -= 1000000);
633:
634: #ifdef WIN32
635: Sleep(secs * 1000 + usecs / 1000);
636: return 0;
637: #else
638: struct timeval t;
639: t.tv_sec = secs;
640: t.tv_usec = usecs;
641: return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0);
642: #endif
1.74 parser 643: }
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