The --enable-cross-thread-connect configuration option or the

-DSQLITE_ALLOW_XTHREAD_CONNECT compile-time option permits database connections to be moved across threads. This will cause latch-ups and failures on some linux systems such as RedHat-9. Do not use these options if you want a portable build. (CVS 2778) FossilOrigin-Name: 84aa4d58001ed943295f21f429c58c3c99b771d8
2005-11-24 23:14:00 +00:00
parent 22465ced29
commit 91636d58c0
6 changed files with 88 additions and 44 deletions
@@ -32,7 +32,7 @@ TCC = @TARGET_CC@ @TARGET_CFLAGS@ -I. -I${TOP}/src
 # Omitting the define will cause extra debugging code to be inserted and
 # includes extra comments when "EXPLAIN stmt" is used.
 #
-TCC += @TARGET_DEBUG@
+TCC += @TARGET_DEBUG@ @XTHREADCONNECT@

 # Compiler options needed for programs that use the TCL library.
 #
@@ -106,7 +106,7 @@ LTINSTALL = $(LIBTOOL) --mode=install $(INSTALL)

 # You should not have to change anything below this line
 ###############################################################################
-
+OPTS = 
 OPTS += -DSQLITE_OMIT_CURSOR          # Cursors do not work at this time
 TCC += -DSQLITE_OMIT_CURSOR

@@ -463,7 +463,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"

-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT EGREP LN_S ECHO AR ac_ct_AR RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP CPP CXX CXXFLAGS ac_ct_CXX CXXCPP F77 FFLAGS ac_ct_F77 LIBTOOL INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA program_prefix VERSION RELEASE VERSION_NUMBER BUILD_CC BUILD_CFLAGS BUILD_LIBS TARGET_CC TARGET_CFLAGS TARGET_LINK TARGET_LFLAGS TARGET_RANLIB TARGET_AR THREADSAFE TARGET_THREAD_LIB ALLOWRELEASE TEMP_STORE BUILD_EXEEXT OS_UNIX OS_WIN TARGET_EXEEXT TARGET_LIBS TCL_VERSION TCL_BIN_DIR TCL_SRC_DIR TCL_LIBS TCL_INCLUDE_SPEC TCL_LIB_FILE TCL_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC HAVE_TCL TARGET_READLINE_LIBS TARGET_READLINE_INC TARGET_HAVE_READLINE TARGET_DEBUG LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT EGREP LN_S ECHO AR ac_ct_AR RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP CPP CXX CXXFLAGS ac_ct_CXX CXXCPP F77 FFLAGS ac_ct_F77 LIBTOOL INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA program_prefix VERSION RELEASE VERSION_NUMBER BUILD_CC BUILD_CFLAGS BUILD_LIBS TARGET_CC TARGET_CFLAGS TARGET_LINK TARGET_LFLAGS TARGET_RANLIB TARGET_AR THREADSAFE TARGET_THREAD_LIB XTHREADCONNECT ALLOWRELEASE TEMP_STORE BUILD_EXEEXT OS_UNIX OS_WIN TARGET_EXEEXT TARGET_LIBS TCL_VERSION TCL_BIN_DIR TCL_SRC_DIR TCL_LIBS TCL_INCLUDE_SPEC TCL_LIB_FILE TCL_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC HAVE_TCL TARGET_READLINE_LIBS TARGET_READLINE_INC TARGET_HAVE_READLINE TARGET_DEBUG LIBOBJS LTLIBOBJS'
 ac_subst_files=''

 # Initialize some variables set by options.
@@ -1026,6 +1026,7 @@ Optional Features:
                          optimize for fast installation [default=yes]
  --disable-libtool-lock  avoid locking (might break parallel builds)
  --enable-threadsafe           Support threadsafe operation
+  --enable-cross-thread-connections   Allow connection sharing across threads
  --enable-releasemode           Support libtool link to release mode
  --enable-tempstore     Use an in-ram database for temporary tables (never,no,yes,always)
  --disable-tcl       do not build TCL extension
@@ -1496,7 +1497,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu


 # The following RCS revision string applies to configure.in
-# $Revision: 1.34 $
+# $Revision: 1.35 $

 #########
 # Programs needed
@@ -3055,7 +3056,7 @@ ia64-*-hpux*)
  ;;
 *-*-irix6*)
  # Find out which ABI we are using.
-  echo '#line 3058 "configure"' > conftest.$ac_ext
+  echo '#line 3059 "configure"' > conftest.$ac_ext
  if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
@@ -4518,7 +4519,7 @@ fi


 # Provide some information about the compiler.
-echo "$as_me:4521:" \
+echo "$as_me:4522:" \
     "checking for Fortran 77 compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -5552,11 +5553,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:5555: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:5556: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:5559: \$? = $ac_status" >&5
+   echo "$as_me:5560: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -5785,11 +5786,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:5788: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:5789: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:5792: \$? = $ac_status" >&5
+   echo "$as_me:5793: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -5845,11 +5846,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:5848: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:5849: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:5852: \$? = $ac_status" >&5
+   echo "$as_me:5853: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -8029,7 +8030,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 8032 "configure"
+#line 8033 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -8127,7 +8128,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 8130 "configure"
+#line 8131 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -10306,11 +10307,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10309: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10310: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:10313: \$? = $ac_status" >&5
+   echo "$as_me:10314: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -10366,11 +10367,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10369: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10370: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:10373: \$? = $ac_status" >&5
+   echo "$as_me:10374: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -11727,7 +11728,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 11730 "configure"
+#line 11731 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -11825,7 +11826,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 11828 "configure"
+#line 11829 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -12652,11 +12653,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:12655: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12656: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:12659: \$? = $ac_status" >&5
+   echo "$as_me:12660: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -12712,11 +12713,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:12715: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12716: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:12719: \$? = $ac_status" >&5
+   echo "$as_me:12720: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -14746,11 +14747,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14749: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14750: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:14753: \$? = $ac_status" >&5
+   echo "$as_me:14754: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -14979,11 +14980,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14982: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14983: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:14986: \$? = $ac_status" >&5
+   echo "$as_me:14987: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
@@ -15039,11 +15040,11 @@ else
   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15042: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15043: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:15046: \$? = $ac_status" >&5
+   echo "$as_me:15047: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@@ -17223,7 +17224,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 17226 "configure"
+#line 17227 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -17321,7 +17322,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
-#line 17324 "configure"
+#line 17325 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@@ -19499,6 +19500,31 @@ else
 fi


+##########
+# Do we want to allow a connection created in one thread to be used
+# in another thread.  This does not work on many Linux systems (ex: RedHat 9)
+# due to bugs in the threading implementations.  This is thus off by default.
+#
+# Check whether --enable-cross-thread-connections or --disable-cross-thread-connections was given.
+if test "${enable_cross_thread_connections+set}" = set; then
+  enableval="$enable_cross_thread_connections"
+
+else
+  enable_xthreadconnect=no
+fi;
+echo "$as_me:$LINENO: checking whether to allow connections to be shared across threads" >&5
+echo $ECHO_N "checking whether to allow connections to be shared across threads... $ECHO_C" >&6
+if test "$enable_xthreadconnect" = "no"; then
+  XTHREADCONNECT=''
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+else
+  XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+fi
+
+
 ##########
 # Do we want to support release
 #
@@ -21135,6 +21161,7 @@ s,@TARGET_RANLIB@,$TARGET_RANLIB,;t t
 s,@TARGET_AR@,$TARGET_AR,;t t
 s,@THREADSAFE@,$THREADSAFE,;t t
 s,@TARGET_THREAD_LIB@,$TARGET_THREAD_LIB,;t t
+s,@XTHREADCONNECT@,$XTHREADCONNECT,;t t
 s,@ALLOWRELEASE@,$ALLOWRELEASE,;t t
 s,@TEMP_STORE@,$TEMP_STORE,;t t
 s,@BUILD_EXEEXT@,$BUILD_EXEEXT,;t t
@@ -116,7 +116,7 @@ AC_INIT(src/sqlite.h.in)
 dnl Put the RCS revision string after AC_INIT so that it will also
 dnl show in in configure.
 # The following RCS revision string applies to configure.in
-# $Revision: 1.20 $
+# $Revision: 1.21 $

 #########
 # Programs needed
@@ -299,6 +299,23 @@ else
 fi
 AC_SUBST(TARGET_THREAD_LIB)

+##########
+# Do we want to allow a connection created in one thread to be used
+# in another thread.  This does not work on many Linux systems (ex: RedHat 9)
+# due to bugs in the threading implementations.  This is thus off by default.
+#
+AC_ARG_ENABLE(cross-thread-connections, 
+[  --enable-cross-thread-connections   Allow connection sharing across threads],,enable_xthreadconnect=no)
+AC_MSG_CHECKING([whether to allow connections to be shared across threads])
+if test "$enable_xthreadconnect" = "no"; then
+  XTHREADCONNECT=''
+  AC_MSG_RESULT([no])
+else
+  XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
+  AC_MSG_RESULT([yes])
+fi
+AC_SUBST(XTHREADCONNECT)
+
 ##########
 # Do we want to support release
 #
@@ -1,6 +1,6 @@
-C Make\ssure\ssqliteInt.h\sis\sincluded\sbefore\sany\ssystem\sincludes.\nThis\sis\srequired\sfor\sQNX.\s\sTicket\s#1478.\s(CVS\s2777)
-D 2005-11-24T22:33:05
-F Makefile.in 38d98f08ec6d3643ec7b2afa1377f677da72c55e
+C The\s--enable-cross-thread-connect\sconfiguration\soption\sor\sthe\n-DSQLITE_ALLOW_XTHREAD_CONNECT\scompile-time\soption\spermits\sdatabase\nconnections\sto\sbe\smoved\sacross\sthreads.\s\sThis\swill\scause\slatch-ups\nand\sfailures\son\ssome\slinux\ssystems\ssuch\sas\sRedHat-9.\s\sDo\snot\suse\sthese\noptions\sif\syou\swant\sa\sportable\sbuild.\s(CVS\s2778)
+D 2005-11-24T23:14:01
+F Makefile.in 7bed51530f32af7fe1945261c388d80998b39a12
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
 F VERSION b818cce180263e590a00ad4509a713892c3eecea
@@ -12,8 +12,8 @@ F art/SQLite.gif 1bbb94484963f1382e27e1c5e86dd0c1061eba2b
 F art/SQLiteLogo3.tiff b9e6bf022ae939bc986cddb8ab99583ca1b02cb3
 F config.guess 2103e94b15dc57112d7b9ee152c6fac5288895b4
 F config.sub 9bf686ec001ae7bc53f5b3563c90c62d4c6d48be
-F configure 32b90b38561fe7182d060e390e3fcd1d42a3f357 x
-F configure.ac e2d025ec2a3fbb33324f37695403b0220cda8784
+F configure 18b8afcd5b4df4408f19aef75c4f3fc4f0e65623 x
+F configure.ac e067b3abb59b29bdb4d784a8c9abb56a797c8da5
 F contrib/sqlitecon.tcl 210a913ad63f9f991070821e599d600bd913e0ad
 F doc/lemon.html f0f682f50210928c07e562621c3b7e8ab912a538
 F doc/report1.txt a031aaf37b185e4fa540223cb516d3bccec7eeac
@@ -54,7 +54,7 @@ F src/os.h c51f2747f7bd1840447e2c7d26db749604626814
 F src/os_common.h d74a11728ad2444b6b695b94c28c06881f049e49
 F src/os_test.c 49833426101f99aee4bb5f6a44b7c4b2029fda1c
 F src/os_test.h 903c93554c23d88f34f667f1979e4a1cee792af3
-F src/os_unix.c 2af2d2cea9cc6282c02b48aacf2995193440cf00
+F src/os_unix.c 6878d8aeaa5ddd0c8e8c92b4c36b09c2080fc892
 F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
 F src/os_win.c fbccc85e7011174068c27d54256746321a1f0059
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
@@ -321,7 +321,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 2dfc9863919c9eb1fd1064ab2817d752dd7f9293
-R 533c39565c0cf38b0eae97eb3134fb99
+P ab76453553bea7c2371b35e7643a98967bb04582
+R 0b4af885de2ca817be0934b37ce5ef2d
 U drh
-Z ffb5c4ad09c7e7bfd6d3c5e381e1247e
+Z c8c6cacd38c20efbd6914c121908cdb8
@@ -1 +1 @@
-ab76453553bea7c2371b35e7643a98967bb04582
+84aa4d58001ed943295f21f429c58c3c99b771d8
@@ -81,7 +81,7 @@
 ** to another.  This logic makes sure a user does not try to do that
 ** by mistake.
 */
-#ifdef SQLITE_UNIX_THREADS
+#if defined(SQLITE_UNIX_THREADS) && !defined(SQLITE_ALLOW_XTHREAD_CONNECTIONS)
 # define SET_THREADID(X)   X->tid = pthread_self()
 # define CHECK_THREADID(X) (!pthread_equal(X->tid, pthread_self()))
 #else