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From:Chris Meyer Date:September 28 2000 4:15pm
Subject:Re: porting to Darwin/Mac OS X
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Hi Monty,

>Wht is the difference between the thread implementation in rhapsody
>and darwin;  As you know, MySQL compiles and works on rhapsodi.

Darwin has a POSIX IEEE 1003.1c pthreads implementation. I don't know 
enough about the standard to know if Darwin complies 100% but 'POSIX 
IEEE 1003.1c' is documented in the headers... Again, I think 
pthread_kill is not included in that spec. What defines do I have to 
set in order to avoid the use of pthread_kill? I ran configure (after 
certain modifications to recognize 'darwin') and it noticed that 
pthread_kill was NOT available -- but when I did the 'make' 
pthread_kill was still being called. Is this a mistake?

>Doesn't mysqladmin shutdown work if you don't have any connected
>clients?  I am quite sure this works on rhapsodi.

I never got this to work even in rhapsody -- but I don't think I ever 
tried the binary dist. I had built it myself...

Here's a list of the issues for building under Darwin. I also 
included my current patch file which gets things to build. You'll 
note that I'm NOT using the 'HAVE_CTHREADS_WRAPPER' like rhapsody. 
Instead I made a new section called 'HAVE_DARWIN_THREADS'. Hopefully 
this is just temporary until things get cleaned up. Anyway, the list:

1 - 'darwin' needs to be added to config.guess and config.sub

2 - A compiler option '-O6' is added to the build; this doesn't seem 
to be a standard gcc switch; only pgcc under linux uses it. This 
doesn't cause the build to fail, just a bunch of annoying warnings. I 
didn't make any changes w.r.t. this.

3 - The check for 'ps' doesn't work because under Darwin when the 
shell executes a script the only thing that shows up in 'ps' is the 
shell, not the script. I posted some messages on the Darwin list to 
see if anyone has any solution to this. Otherwise someone more 
knowledgeable will have to special-case Darwin in configure to force 
the BSD style FIND_PROC.

4 - Some compiler flags for building with Darwin's gcc. Mainly 
'-traditional-cpp' needs to be on to build correctly.

5 - The whole pthread issue. See my first paragraph at the beginning 
of this message.

6 - A minor change in sql/sql_cache.cc which doesn't build under 
Darwin. Hopefully this can be merged into mysql right away.

Here's the patch file (don't apply this blindly since configure.in 
forces FIND_PROC to use BSD style if all other checks fail):

diff -Naur mysql-3.23.24-beta/config.guess 
mysql-3.23.24-beta-darwin/config.guess
--- mysql-3.23.24-beta/config.guess	Fri Sep  8 00:50:24 2000
+++ mysql-3.23.24-beta-darwin/config.guess	Tue Sep 26 10:54:21 2000
@@ -987,6 +987,9 @@
      *:Rhapsody:*:*)
  	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
  	exit 0 ;;
+    *:Darwin:*:*)
+        echo `uname -p`-apple-darwin${UNAME_RELEASE}
+        exit 0 ;;
  esac

  #echo '(No uname command or uname output not recognized.)' 1>&2
diff -Naur mysql-3.23.24-beta/config.sub mysql-3.23.24-beta-darwin/config.sub
--- mysql-3.23.24-beta/config.sub	Fri Sep  8 00:50:22 2000
+++ mysql-3.23.24-beta-darwin/config.sub	Tue Sep 26 10:54:21 2000
@@ -919,7 +919,8 @@
  	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
  	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
  	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
-	      | -interix* | -uwin* | -rhapsody* | -openstep* | -oskit*)
+	      | -interix* | -uwin* | -rhapsody* | -darwin* | -openstep* \
+	      | -oskit*)
  	# Remember, each alternative MUST END IN *, to match a version number.
  		;;
  	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
diff -Naur mysql-3.23.24-beta/configure.in 
mysql-3.23.24-beta-darwin/configure.in
--- mysql-3.23.24-beta/configure.in	Fri Sep  8 00:50:24 2000
+++ mysql-3.23.24-beta-darwin/configure.in	Tue Sep 26 11:11:44 2000
@@ -331,7 +331,8 @@
  then
    FIND_PROC="$PS \$\$PID | grep mysqld > /dev/null"
  else
-  AC_MSG_ERROR([Could not find the right ps switches. Which OS is 
this ?. See the Installation chapter in the Reference Manual.])
+  FIND_PROC="$PS -uaxww | grep mysqld | grep \" \$\$PID \" > /dev/null"
+#  AC_MSG_ERROR([Could not find the right ps switches. Which OS is 
this ?. See the Installation chapter in the Reference Manual.])
  fi
  AC_SUBST(FIND_PROC)
  AC_MSG_RESULT("$FIND_PROC")
@@ -648,6 +649,14 @@
      then
        echo "Using --with-named-thread=-lpthread"
        with_named_thread="-lpthread"
+    fi
+    ;;
+  *darwin*)
+    if test "$ac_cv_prog_gcc" = "yes"
+    then
+      CFLAGS="$CFLAGS -traditional-cpp -DHAVE_DARWIN_THREADS "
+      CXXFLAGS="$CXXFLAGS -traditional-cpp -DHAVE_DARWIN_THREADS "
+      with_named_curses=""
      fi
      ;;
    *rhapsody*)
diff -Naur mysql-3.23.24-beta/include/my_pthread.h 
mysql-3.23.24-beta-darwin/include/my_pthread.h
--- mysql-3.23.24-beta/include/my_pthread.h	Fri Sep  8 00:50:23 2000
+++ mysql-3.23.24-beta-darwin/include/my_pthread.h	Tue Sep 26 
10:54:10 2000
@@ -361,6 +361,16 @@
  #define pthread_condattr_destroy pthread_condattr_delete
  #endif

+#ifdef HAVE_DARWIN_THREADS
+#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
+#define pthread_kill(A,B) pthread_dummy(0)
+#define pthread_condattr_init(A) pthread_dummy(0)
+#define pthread_condattr_destroy(A) pthread_dummy(0)
+#define pthread_signal(A,B) pthread_dummy(0)
+#undef sigset
+#define sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
+#endif
+
  #ifdef HAVE_CTHREADS_WRAPPER			/* For MacOSX */
  #define pthread_cond_destroy(A) pthread_dummy(0)
  #define pthread_mutex_destroy(A) pthread_dummy(0)
diff -Naur mysql-3.23.24-beta/sql/sql_cache.cc 
mysql-3.23.24-beta-darwin/sql/sql_cache.cc
--- mysql-3.23.24-beta/sql/sql_cache.cc	Fri Sep  8 00:50:24 2000
+++ mysql-3.23.24-beta-darwin/sql/sql_cache.cc	Tue Sep 26 10:54:18 2000
@@ -22,7 +22,7 @@
  #define SQL_CACHE_LENGTH 300

  HASH sql_cache;
-LEX lex_array_static[SQL_CACHE_LENGTH];
+static LEX lex_array_static[SQL_CACHE_LENGTH];
  LEX * lex_array = lex_array_static;
  int last_lex_array_item = SQL_CACHE_LENGTH - 1;
Thread
porting to Darwin/Mac OS XChris Meyer1 Oct
  • porting to Darwin/Mac OS XMichael Widenius1 Oct
    • Re: porting to Darwin/Mac OS XChris Meyer2 Oct
      • Re: porting to Darwin/Mac OS XMichael Widenius3 Oct
        • Re: porting to Darwin/Mac OS XChris Meyer9 Oct
          • Re: porting to Darwin/Mac OS Xsinisa9 Oct
          • Re: porting to Darwin/Mac OS XMichael Widenius11 Oct
            • Re: porting to Darwin/Mac OS XNick Kledzik19 Oct
  • Re: porting to Darwin/Mac OS Xsasha11 Oct
Re: porting to Darwin/Mac OS XThimble Smith1 Oct