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* Some wrapper classes to ensure that file descriptors / directory

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handles are closed when they go out of scope.
This commit is contained in:
Eelco Dolstra 2003-10-22 10:48:22 +00:00
parent c62433751d
commit 4a8948b7a6
6 changed files with 123 additions and 56 deletions
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4
src/libnix/store.cc
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@ -304,14 +304,12 @@ void addTextToStore(const Path & dstPath, const string & s)
/* !!! locking? -> parallel writes are probably idempotent */
int fd = open(dstPath.c_str(), O_CREAT | O_EXCL | O_WRONLY, 0666);
AutoCloseFD fd = open(dstPath.c_str(), O_CREAT | O_EXCL | O_WRONLY, 0666);
if (fd == -1) throw SysError(format("creating store file `%1%'") % dstPath);
if (write(fd, s.c_str(), s.size()) != (ssize_t) s.size())
throw SysError(format("writing store file `%1%'") % dstPath);
close(fd); /* !!! close on exception */
Transaction txn(nixDB);
registerValidPath(txn, dstPath);
txn.commit();