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src: fix -Wempty-body compiler warnings

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Turn counter macros into no-op instructions when counters are disabled.
Evaluating to nothing makes gcc complain when the macro is used in a
conditional.  Fixes the following warning:

    ../src/tls_wrap.cc:320:5: warning:
    suggest braces around empty body in an 'if' statement [-Wempty-body]
         NODE_COUNT_NET_BYTES_SENT(write_size_);
         ^

PR-URL: https://github.com/iojs/io.js/pull/974
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
This commit is contained in:
Ben Noordhuis
2015-02-26 21:34:03 +01:00
parent 726671cb0e
commit b150c9839e
1 changed files with 12 additions and 12 deletions
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24
src/node_counters.h
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@@ -7,18 +7,18 @@
#include "node_win32_perfctr_provider.h"
#else
#define NODE_COUNTER_ENABLED() (false)
#define NODE_COUNT_HTTP_SERVER_REQUEST()
#define NODE_COUNT_HTTP_SERVER_RESPONSE()
#define NODE_COUNT_HTTP_CLIENT_REQUEST()
#define NODE_COUNT_HTTP_CLIENT_RESPONSE()
#define NODE_COUNT_SERVER_CONN_OPEN()
#define NODE_COUNT_SERVER_CONN_CLOSE()
#define NODE_COUNT_NET_BYTES_SENT(bytes)
#define NODE_COUNT_NET_BYTES_RECV(bytes)
#define NODE_COUNT_GET_GC_RAWTIME()
#define NODE_COUNT_GC_PERCENTTIME(percent)
#define NODE_COUNT_PIPE_BYTES_SENT(bytes)
#define NODE_COUNT_PIPE_BYTES_RECV(bytes)
#define NODE_COUNT_GC_PERCENTTIME(percent) do { } while (false)
#define NODE_COUNT_GET_GC_RAWTIME() do { } while (false)
#define NODE_COUNT_HTTP_CLIENT_REQUEST() do { } while (false)
#define NODE_COUNT_HTTP_CLIENT_RESPONSE() do { } while (false)
#define NODE_COUNT_HTTP_SERVER_REQUEST() do { } while (false)
#define NODE_COUNT_HTTP_SERVER_RESPONSE() do { } while (false)
#define NODE_COUNT_NET_BYTES_RECV(bytes) do { } while (false)
#define NODE_COUNT_NET_BYTES_SENT(bytes) do { } while (false)
#define NODE_COUNT_PIPE_BYTES_RECV(bytes) do { } while (false)
#define NODE_COUNT_PIPE_BYTES_SENT(bytes) do { } while (false)
#define NODE_COUNT_SERVER_CONN_CLOSE() do { } while (false)
#define NODE_COUNT_SERVER_CONN_OPEN() do { } while (false)
#endif
#include "v8.h"