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authoreldritch horrors <pennae@lix.systems>2024-03-18 14:52:04 +0100
committereldritch horrors <pennae@lix.systems>2024-03-18 15:42:52 -0600
commitf38ae92a38a66b597dbd6975219d6ddb4f52fa4f (patch)
treebe6e1ed225e3d77a3c1fbcef1778169878326cbe /src/libstore/pathlocks.cc
parent0f518f44e289114eb4828c8232bc0b79c7a85ac7 (diff)
libutil: make AutoCloseFD a better resource
add a reset() method to close the wrapped fd instead of assigning magic constants. also make the from-fd constructor explicit so you can't accidentally assign the *wrong* magic constant, or even an unrelated integer that also just happens to be an fd by pure chance. Change-Id: I51311b0f6e040240886b5103d39d1794a6acc325
Diffstat (limited to 'src/libstore/pathlocks.cc')
-rw-r--r--src/libstore/pathlocks.cc4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/libstore/pathlocks.cc b/src/libstore/pathlocks.cc
index 955ae3a34..3e654c1c9 100644
--- a/src/libstore/pathlocks.cc
+++ b/src/libstore/pathlocks.cc
@@ -17,9 +17,7 @@ namespace nix {
AutoCloseFD openLockFile(const Path & path, bool create)
{
- AutoCloseFD fd;
-
- fd = open(path.c_str(), O_CLOEXEC | O_RDWR | (create ? O_CREAT : 0), 0600);
+ AutoCloseFD fd{open(path.c_str(), O_CLOEXEC | O_RDWR | (create ? O_CREAT : 0), 0600)};
if (!fd && (create || errno != ENOENT))
throw SysError("opening lock file '%1%'", path);