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Added the flexnbd break command to stop mirroring

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This commit is contained in:
Alex Young
2012-07-17 16:30:49 +01:00
parent 1caa3d4e27
commit 314c0c2a2a
10 changed files with 223 additions and 8 deletions
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51
src/control.c
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@@ -428,6 +428,51 @@ int control_acl(struct control_client* client, int linesc, char** lines)
return 0;
}
int control_break(
struct control_client* client,
int linesc __attribute__ ((unused)),
char** lines __attribute__((unused))
)
{
NULLCHECK( client );
NULLCHECK( client->flexnbd );
int result = 0;
struct flexnbd* flexnbd = client->flexnbd;
flexnbd_lock_switch( flexnbd );
{
struct server * serve = flexnbd_server( flexnbd );
if ( server_is_mirroring( serve ) ) {
info( "Signaling to abandon mirror" );
server_abandon_mirror( serve );
debug( "Abandon signaled" );
if ( server_is_closed( serve ) ) {
info( "Mirror completed while canceling" );
write( client->socket,
"1: mirror completed\n", 20 );
}
else {
info( "Mirror successfully stopped." );
write( client->socket,
"0: mirror stopped\n", 18 );
result = 1;
}
} else {
warn( "Not mirroring." );
write( client->socket, "1: not mirroring\n", 17 );
}
}
flexnbd_unlock_switch( flexnbd );
return result;
}
/** FIXME: add some useful statistics */
int control_status(
struct control_client* client,
@@ -486,6 +531,12 @@ void control_respond(struct control_client * client)
debug("mirror command failed");
}
}
else if (strcmp(lines[0], "break") == 0) {
info( "break command received" );
if ( control_break( client, linesc-1, lines+1) < 0) {
debug( "break command failed" );
}
}
else if (strcmp(lines[0], "status") == 0) {
info("status command received" );
if (control_status(client, linesc-1, lines+1) < 0) {