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Report daemon OOM better

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When copying a large path causes the daemon to run out of memory, you
now get:

  error: Nix daemon out of memory

instead of:

  error: writing to file: Broken pipe
This commit is contained in:
Eelco Dolstra 2014-06-10 13:45:50 +02:00
parent 829af22759
commit b1beed97a0
2 changed files with 19 additions and 9 deletions
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22
src/libstore/remote-store.cc
View file

@ -402,11 +402,23 @@ Path RemoteStore::addToStore(const Path & _srcPath,
writeInt((hashAlgo == htSHA256 && recursive) ? 0 : 1, to);
writeInt(recursive ? 1 : 0, to);
writeString(printHashType(hashAlgo), to);
to.written = 0;
to.warn = true;
dumpPath(srcPath, to, filter);
to.warn = false;
processStderr();
try {
to.written = 0;
to.warn = true;
dumpPath(srcPath, to, filter);
to.warn = false;
processStderr();
} catch (SysError & e) {
/* Daemon closed while we were sending the path. Probably OOM
or I/O error. */
if (e.errNo == EPIPE)
try {
processStderr();
} catch (EndOfFile & e) { }
throw;
}
return readStorePath(from);
}