wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-28 17:51:15 +02:00
Code Activity

* Some wrapper classes to ensure that file descriptors / directory

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

12
src/libnix/archive.cc
View file

@ -51,7 +51,7 @@ static void dump(const string & path, DumpSink & sink);
static void dumpEntries(const Path & path, DumpSink & sink)
{
DIR * dir = opendir(path.c_str());
AutoCloseDir dir = opendir(path.c_str());
if (!dir) throw SysError("opening directory " + path);
vector<string> names;
@ -77,8 +77,6 @@ static void dumpEntries(const Path & path, DumpSink & sink)
dump(path + "/" + *it, sink);
writeString(")", sink);
}
closedir(dir); /* !!! close on exception */
}
@ -88,7 +86,7 @@ static void dumpContents(const Path & path, unsigned int size,
writeString("contents", sink);
writeInt(size, sink);
int fd = open(path.c_str(), O_RDONLY);
AutoCloseFD fd = open(path.c_str(), O_RDONLY);
if (fd == -1) throw SysError(format("opening file `%1%'") % path);
unsigned char buf[65536];
@ -105,8 +103,6 @@ static void dumpContents(const Path & path, unsigned int size,
throw SysError("file changed while reading it: " + path);
writePadding(size, sink);
close(fd); /* !!! close on exception */
}
@ -262,7 +258,7 @@ static void restore(const Path & path, RestoreSource & source)
if (s != "(") throw badArchive("expected open tag");
enum { tpUnknown, tpRegular, tpDirectory, tpSymlink } type = tpUnknown;
int fd = -1; /* !!! close on exception */
AutoCloseFD fd;
while (1) {
s = readString(source);
@ -326,8 +322,6 @@ static void restore(const Path & path, RestoreSource & source)
}
}
if (fd != -1) close(fd);
}