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  1. 24 Mar, 2019 1 commit
    • Alan Coopersmith's avatar
      Add explicit casts to clear implicit conversion warnings · 67a51275
      Alan Coopersmith authored 
      xdpyinfo.c:173:17: warning: implicit conversion changes signedness: 'int' to
      'size_t' (aka 'unsigned long') [-Wsign-conversion]
        qsort(extlist, n, sizeof(char *), StrCmp);
        ~~~~~          ^
xdpyinfo.c:183:26: warning: implicit conversion changes signedness: 'int' to
      'unsigned long' [-Wsign-conversion]
            qe_cookies = calloc(n, sizeof(xcb_query_extension_cookie_t));
                         ~~~~~~ ^
xdpyinfo.c:195:12: warning: implicit conversion loses integer precision:
      'unsigned long' to 'uint16_t' (aka 'unsigned short') [-Wconversion]
                                                     strlen(extlist[i]),
                                                     ^~~~~~~~~~~~~~~~~~
xdpyinfo.c:1382:51: warning: implicit conversion loses integer precision:
      'unsigned long' to 'int' [-Wshorten-64-to-32]
        int extlen = strlen(known_extensions[i].extname) + 1;
            ~~~~~~   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
Signed-off-by: Alan Coopersmith's avatarAlan Coopersmith <alan.coopersmith@oracle.com>
      67a51275
  3. 03 Mar, 2019 1 commit
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  37. 07 Oct, 2010 1 commit
  39. 04 Oct, 2010 1 commit
    • Alan Coopersmith's avatar
      Use xcb for -queryExt instead of a round-trip per extension · 072fc46b
      Alan Coopersmith authored 
      On a system with 30 extensions listed by xdpyinfo, truss -c
reports this saves quite a few system calls by batching the
QueryExtension requests instead of a round-trip for each one:

                      Xlib      xcb
writev                  40       11
poll                    80       22
recv                   117       29
total (*)              464      296

(*) total includes all system calls, including many not shown since
their count did not change significantly.   There was one additional
set of open/mmap/close etc. for loading the added libX11-xcb library.

Over a tcp connection, this reduced both the number of packets,
and due to tcp packet header overhead, the overall amount of data:

                      Xlib      xcb
TCP packets             93       35
TCP bytes            11554     7726
Signed-off-by: Alan Coopersmith's avatarAlan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp's avatarJamey Sharp <jamey@minilop.net>
      072fc46b
  41. 03 Oct, 2010 2 commits
  43. 24 Sep, 2010 2 commits