Mercurial > hg > truffle

comparison src/share/vm/runtime/os.cpp @ 2469:677234770800

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7017193: Small memory leak in get_stack_bounds os::create_stack_guard_pages Summary: getline() returns -1 but still allocate memory for str Reviewed-by: dcubed, coleenp
author dsamersoff
date Wed, 30 Mar 2011 19:38:07 +0400
parents fc416c2556ec
children 0654ee04b214 bf6481e5f96d
comparison
equal deleted inserted replaced
2393:74e790c48cd4 2469:677234770800
1289 result = true; 1289 result = true;
1290 } 1290 }
1291 } 1291 }
1292 return result; 1292 return result;
1293 } 1293 }
1294
1295 // Read file line by line, if line is longer than bsize,
1296 // skip rest of line.
1297 int os::get_line_chars(int fd, char* buf, const size_t bsize){
1298 size_t sz, i = 0;
1299
1300 // read until EOF, EOL or buf is full
1301 while ((sz = (int) read(fd, &buf[i], 1)) == 1 && i < (bsize-1) && buf[i] != '\n') {
1302 ++i;
1303 }
1304
1305 if (buf[i] == '\n') {
1306 // EOL reached so ignore EOL character and return
1307
1308 buf[i] = 0;
1309 return (int) i;
1310 }
1311
1312 buf[i+1] = 0;
1313
1314 if (sz != 1) {
1315 // EOF reached. if we read chars before EOF return them and
1316 // return EOF on next call otherwise return EOF
1317
1318 return (i == 0) ? -1 : (int) i;
1319 }
1320
1321 // line is longer than size of buf, skip to EOL
1322 int ch;
1323 while (read(fd, &ch, 1) == 1 && ch != '\n') {
1324 // Do nothing
1325 }
1326
1327 // return initial part of line that fits in buf.
1328 // If we reached EOF, it will be returned on next call.
1329
1330 return (int) i;
1331 }