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* Pass various options to the worker so that flags like -K or -j work

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in multi-user Nix (NIX-72).
* Client/worker: exchange a protocol version number for future
  compatibility.
This commit is contained in:
Eelco Dolstra 2007-09-18 09:11:20 +00:00
parent 26f981c2e5
commit f3441e6122
5 changed files with 49 additions and 7 deletions
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20
src/nix-worker/nix-worker.cc
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@ -414,6 +414,19 @@ static void performOp(Source & from, Sink & to, unsigned int op)
break;
}
case wopSetOptions: {
keepFailed = readInt(from) != 0;
keepGoing = readInt(from) != 0;
tryFallback = readInt(from) != 0;
verbosity = (Verbosity) readInt(from);
maxBuildJobs = readInt(from);
maxSilentTime = readInt(from);
startWork();
stopWork();
break;
}
default:
throw Error(format("invalid operation %1%") % op);
@ -437,14 +450,19 @@ static void processConnection()
/* Exchange the greeting. */
unsigned int magic = readInt(from);
if (magic != WORKER_MAGIC_1) throw Error("protocol mismatch");
verbosity = (Verbosity) readInt(from);
writeInt(WORKER_MAGIC_2, to);
writeInt(PROTOCOL_VERSION, to);
unsigned int clientVersion = readInt(from);
/* Send startup error messages to the client. */
startWork();
try {
/* If we can't accept clientVersion, then throw an error
*here* (not above). */
/* Prevent users from doing something very dangerous. */
if (geteuid() == 0 &&
querySetting("build-users-group", "") == "")