Simplify os_unix.c by removing support for LinuxThreads. Linux systems must

either use NPTL or else not share database connections across threads.

FossilOrigin-Name: e294b696ba91512b1ca5547774c51ea07b4cb5bc

manifest

@@ -1,8 +1,8 @@
 -----BEGIN PGP SIGNED MESSAGE-----
 Hash: SHA1
 
-C Change\sthe\sOSTRACEn()\smacro\sto\sOSTRACE(()).\s\sAlso\srename\ssome\sinternal\sfields\nand\svariables\sin\sos_unix.c\sto\sbe\smore\smeaningful\sand\ssearchable.
-D 2010-05-14T11:30:18
+C Simplify\sos_unix.c\sby\sremoving\ssupport\sfor\sLinuxThreads.\s\sLinux\ssystems\smust\neither\suse\sNPTL\sor\selse\snot\sshare\sdatabase\sconnections\sacross\sthreads.
+D 2010-05-14T12:43:02
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in a5cad1f8f3e021356bfcc6c77dc16f6f1952bbc3
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -155,7 +155,7 @@ F src/os.c c0a5dfce2a214dacb679425632d04f8a2021f364
 F src/os.h 8a7e2456237ecf3a2e55b02f9fe6091f1ad36902
 F src/os_common.h a8f95b81eca8a1ab8593d23e94f8a35f35d4078f
 F src/os_os2.c 665876d5eec7585226b0a1cf5e18098de2b2da19
-F src/os_unix.c 1a02adfbc4d85256ca29abfd8015ba2d481f44a6
+F src/os_unix.c a725e2dc6f3d72b1776a04898fe088e3bb7d3a04
 F src/os_win.c 70c4a3327716213b59adf3a8adf2d5318b044a19
 F src/pager.c 1e163a82ae8405433dca559831caa06aafbba3b0
 F src/pager.h 76466c3a5af56943537f68b1f16567101a0cd1d0
@@ -178,7 +178,7 @@ F src/sqliteLimit.h 196e2f83c3b444c4548fc1874f52f84fdbda40f3
 F src/status.c 4df6fe7dce2d256130b905847c6c60055882bdbe
 F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
 F src/tclsqlite.c 6bc5fbde634b9cb42b3d29d674fa6cd0c22c0881
-F src/test1.c ff95ca772d1df51618f9f1ef7ea432cdf851f97b
+F src/test1.c 7e82b944b123360f6637e0c76699713619fb0742
 F src/test2.c 31f1b9d076b4774a22d2605d0af1f34e14a9a7bd
 F src/test3.c 4c21700c73a890a47fc685c1097bfb661346ac94
 F src/test4.c ad03bb987ddedce928f4258c1e7fa4109a73497d
@@ -616,7 +616,7 @@ F test/thread003.test b824d4f52b870ae39fc5bae4d8070eca73085dca
 F test/thread004.test f51dfc3936184aaf73ee85f315224baad272a87f
 F test/thread005.test bf5c374ca65dd89fd56c8fe511ccfb46875bda5e
 F test/thread1.test 862dd006d189e8b0946935db17399dcac2f8ef91
-F test/thread2.test 6e0997f7beabb6a7e471bd18740ed04805c785f4
+F test/thread2.test e08034b83fe9693ade77049732518e5b3d2d700d
 F test/thread_common.tcl 0b07423d29ddb73d4bacbac69268c8d37b6cc5d2
 F test/threadtest1.c 6029d9c5567db28e6dc908a0c63099c3ba6c383b
 F test/threadtest2.c ace893054fa134af3fc8d6e7cfecddb8e3acefb9
@@ -684,7 +684,6 @@ F test/tkt3424.test 61f831bd2b071bd128fa5d00fbda57e656ca5812
 F test/tkt3442.test 89d7b41a4ec4d9d9b40ab8575d648579fb13cb4f
 F test/tkt3457.test edbf54b05cbe5165f00192becbd621038f1615e4
 F test/tkt3461.test 228ea328a5a21e8663f80ee3d212a6ad92549a19
-F test/tkt3472.test 98c7e54b8fef2b1266a552a66c8e5d88a6908d1d
 F test/tkt3493.test 1686cbde85f8721fc1bdc0ee72f2ef2f63139218
 F test/tkt3508.test d75704db9501625c7f7deec119fcaf1696aefb7d
 F test/tkt3522.test 22ce2ebbcb04a6be56c0977d405c207967318fd6
@@ -817,14 +816,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P 2a4014b79b852d8b62b4941495b826f154308d86
-R 37128756c9dce53457df39613b6f4fe3
+P 5fe529f239cddbf4b7ea57abb02d95cc0d94f5f5
+R 5512a2ec91f48237ba41c44554f0cdb3
 U drh
-Z 94b2ef715590f7f65178f2a83c78e9cb
+Z 7e4d9cef7a6cf6a0301b86729a795d9b
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manifest.uuid

@@ -1 +1 @@
-5fe529f239cddbf4b7ea57abb02d95cc0d94f5f5
+e294b696ba91512b1ca5547774c51ea07b4cb5bc

src/test1.c

@@ -5129,9 +5129,6 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
   extern int sqlite3_pager_readdb_count;
   extern int sqlite3_pager_writedb_count;
   extern int sqlite3_pager_writej_count;
-#if defined(__linux__) && defined(SQLITE_TEST) && SQLITE_THREADSAFE
-  extern int threadsOverrideEachOthersLocks;
-#endif
 #if SQLITE_OS_WIN
   extern int sqlite3_os_type;
 #endif
@@ -5187,10 +5184,6 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
   Tcl_LinkVar(interp, "unaligned_string_counter",
       (char*)&unaligned_string_counter, TCL_LINK_INT);
 #endif
-#if defined(__linux__) && defined(SQLITE_TEST) && SQLITE_THREADSAFE
-  Tcl_LinkVar(interp, "threadsOverrideEachOthersLocks",
-      (char*)&threadsOverrideEachOthersLocks, TCL_LINK_INT);
-#endif
 #ifndef SQLITE_OMIT_UTF16
   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);

test/thread2.test

@@ -29,10 +29,6 @@ if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
   finish_test
   return
 }
-if {![info exists threadsOverrideEachOthersLocks]} {
-  finish_test
-  return
-}
 
 # Create some data to work with
 #
@@ -121,118 +117,6 @@ do_test thread2-2.9 {
 thread_halt A
 thread_halt B
 
-# Save the original (correct) value of threadsOverrideEachOthersLocks
-# so that it can be restored.  If this value is left set incorrectly, lots
-# of things will go wrong in future tests.
-#
-set orig_threadOverride $threadsOverrideEachOthersLocks
-
-# Pretend we are on a system (like RedHat9) were threads do not
-# override each others locks.
-#
-set threadsOverrideEachOthersLocks 0
-
-# Verify that we can move database connections between threads as
-# long as no locks are held.
-#
-do_test thread2-3.1 {
-  thread_create A test.db
-  set DB [thread_db_get A]
-  thread_halt A
-} {}
-do_test thread2-3.2 {
-  set STMT [sqlite3_prepare $DB {SELECT a FROM t1 LIMIT 1} -1 TAIL]
-  sqlite3_step $STMT
-} SQLITE_ROW
-do_test thread2-3.3 {
-  sqlite3_column_int $STMT 0
-} 1
-do_test thread2-3.4 {
-  sqlite3_finalize $STMT
-} SQLITE_OK
-do_test thread2-3.5 {
-  set STMT [sqlite3_prepare $DB {SELECT max(a) FROM t1} -1 TAIL]
-  sqlite3_step $STMT
-} SQLITE_ROW
-do_test thread2-3.6 {
-  sqlite3_column_int $STMT 0
-} 8
-do_test thread2-3.7 {
-  sqlite3_finalize $STMT
-} SQLITE_OK
-do_test thread2-3.8 {
-  sqlite3_close $DB
-} {SQLITE_OK}
-
-do_test thread2-3.10 {
-  thread_create A test.db
-  thread_compile A {SELECT a FROM t1 LIMIT 1}
-  thread_step A
-  thread_finalize A
-  set DB [thread_db_get A]
-  thread_halt A
-} {}
-do_test thread2-3.11 {
-  set STMT [sqlite3_prepare $DB {SELECT a FROM t1 LIMIT 1} -1 TAIL]
-  sqlite3_step $STMT
-} SQLITE_ROW
-do_test thread2-3.12 {
-  sqlite3_column_int $STMT 0
-} 1
-do_test thread2-3.13 {
-  sqlite3_finalize $STMT
-} SQLITE_OK
-do_test thread2-3.14 {
-  sqlite3_close $DB
-} SQLITE_OK
-
-do_test thread2-3.20 {
-  thread_create A test.db
-  thread_compile A {SELECT a FROM t1 LIMIT 3}
-  thread_step A
-  set STMT [thread_stmt_get A]
-  set DB [thread_db_get A]
-  sqlite3_step $STMT
-} SQLITE_ROW
-do_test thread2-3.22 {
-  sqlite3_column_int $STMT 0
-} 2
-do_test thread2-3.23 {
-  # The unlock fails here.  But because we never check the return
-  # code from sqlite3OsUnlock (because we cannot do anything about it
-  # if it fails) we do not realize that an error has occurred.
-  breakpoint
-  sqlite3_finalize $STMT
-} SQLITE_OK
-do_test thread2-3.25 {
-  thread_db_put A $DB
-  thread_halt A
-} {}
-
-do_test thread2-3.30 {
-  thread_create A test.db
-  thread_compile A {BEGIN}
-  thread_step A
-  thread_finalize A
-  thread_compile A {SELECT a FROM t1 LIMIT 1}
-  thread_step A
-  thread_finalize A
-  set DB [thread_db_get A]
-  set STMT [sqlite3_prepare $DB {INSERT INTO t1 VALUES(99,'error')} -1 TAIL]
-  sqlite3_step $STMT
-} SQLITE_ERROR
-do_test thread2-3.32 {
-  sqlite3_finalize $STMT
-} SQLITE_MISUSE
-do_test thread2-3.33 {
-  thread_db_put A $DB
-  thread_halt A
-} {}
-
-# VERY important to set the override flag back to its true value.
-#
-set threadsOverrideEachOthersLocks $orig_threadOverride
-
 # Also important to halt the worker threads, which are using spin
 # locks and eating away CPU cycles.
 #

test/tkt3472.test

@@ -1,39 +0,0 @@
-# 2008 November 11
-#
-# The author disclaims copyright to this source code.  In place of
-# a legal notice, here is a blessing:
-#
-#    May you do good and not evil.
-#    May you find forgiveness for yourself and forgive others.
-#    May you share freely, never taking more than you give.
-#
-#***********************************************************************
-#     
-# $Id: tkt3472.test,v 1.4 2008/12/03 22:32:45 drh Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-if {![info exists threadsOverrideEachOthersLocks]} {
-  finish_test
-  return
-}
-
-set ::correctvalue $threadsOverrideEachOthersLocks
-puts "threadsOverrideEachOthersLocks = $::correctvalue"
-
-do_test tkt3472-1.1 {
-  db close
-  set threadsOverrideEachOthersLocks -1
-  sqlite3 db test.db
-  set threadsOverrideEachOthersLocks
-} $::correctvalue
-
-do_test tkt3472-1.2 {
-  db close
-  set threadsOverrideEachOthersLocks -1
-  sqlite3 db test.db -readonly 1
-  set threadsOverrideEachOthersLocks
-} $::correctvalue
-
-finish_test