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Add the SQLITE_THREADS_OVERRIDE_LOCKS compile-time option that disables

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the run-time test to see if threads can override each others locks on unix. (CVS 3050)

FossilOrigin-Name: e83a19e8cb6d721b02502925b362f2e86b2de742
This commit is contained in:
drh
2006-01-31 23:03:35 +00:00
parent 15b9a15a8d
commit 5062d3a048
3 changed files with 18 additions and 9 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Patches\sto\ssupport\slinux\son\sembedded\splatforms.\s(CVS\s3049) C Add\sthe\sSQLITE_THREADS_OVERRIDE_LOCKS\scompile-time\soption\sthat\sdisables\nthe\srun-time\stest\sto\ssee\sif\sthreads\scan\soverride\seach\sothers\slocks\son\sunix.\s(CVS\s3050)
D 2006-01-31T20:49:13 D 2006-01-31T23:03:35
F Makefile.in e936c6fc3134838318aa0335a85041e6da31f6ee F Makefile.in e936c6fc3134838318aa0335a85041e6da31f6ee
F Makefile.linux-gcc 74ba0eadf88748a9ce3fd03d2a3ede2e6715baec F Makefile.linux-gcc 74ba0eadf88748a9ce3fd03d2a3ede2e6715baec
F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -55,7 +55,7 @@ F src/os.h 93035a0e3b9dd05cdd0aaef32ea28ca28e02fe78
F src/os_common.h 061fba8511a656b118551424f64e366ad0d4cb3b F src/os_common.h 061fba8511a656b118551424f64e366ad0d4cb3b
F src/os_test.c 49833426101f99aee4bb5f6a44b7c4b2029fda1c F src/os_test.c 49833426101f99aee4bb5f6a44b7c4b2029fda1c
F src/os_test.h 903c93554c23d88f34f667f1979e4a1cee792af3 F src/os_test.h 903c93554c23d88f34f667f1979e4a1cee792af3
F src/os_unix.c 73c5e722a661ed98d8919f204911e4e34e51fa41 F src/os_unix.c 9de1887768d94a63a4043ad487dd1c595437488e
F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
F src/os_win.c c67a2c46d929cf54c8f80ec5e6079cf684a141a9 F src/os_win.c c67a2c46d929cf54c8f80ec5e6079cf684a141a9
F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
@@ -349,7 +349,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
P b922c8e45f9a7799583d8b42875b27032fd71422 P a088eb6d6eda70d89add1e5d95be5efda6c0de67
R b8251799cdb5710fd1ee4d218b3330fc R 6b10277b6e963aadabfbe9c5e02eda02
U drh U drh
Z 30ced3c5bffcb60966170fd64437cef6 Z d1818b449aa61cbf719901ce4af7d893

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manifest.uuid
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a088eb6d6eda70d89add1e5d95be5efda6c0de67 e83a19e8cb6d721b02502925b362f2e86b2de742

13
src/os_unix.c
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@@ -353,14 +353,23 @@ static Hash openHash = { SQLITE_HASH_BINARY, 0, 0, 0, 0, 0 };
** 1: Yes. Threads can override each others locks. ** 1: Yes. Threads can override each others locks.
** -1: We don't know yet. ** -1: We don't know yet.
** **
** On some systems, we know at compile-time if threads can override each
** others locks. On those systems, the SQLITE_THREAD_OVERRIDE_LOCK macro
** will be set appropriately. On other systems, we have to check at
** runtime. On these latter systems, SQLTIE_THREAD_OVERRIDE_LOCK is
** undefined.
**
** This variable normally has file scope only. But during testing, we make ** This variable normally has file scope only. But during testing, we make
** it a global so that the test code can change its value in order to verify ** it a global so that the test code can change its value in order to verify
** that the right stuff happens in either case. ** that the right stuff happens in either case.
*/ */
#ifndef SQLITE_THREAD_OVERRIDE_LOCK
# define SQLITE_THREAD_OVERRIDE_LOCK -1
#endif
#ifdef SQLITE_TEST #ifdef SQLITE_TEST
int threadsOverrideEachOthersLocks = -1; int threadsOverrideEachOthersLocks = SQLITE_THREAD_OVERRIDE_LOCK;
#else #else
static int threadsOverrideEachOthersLocks = -1; static int threadsOverrideEachOthersLocks = SQLITE_THREAD_OVERRIDE_LOCK;
#endif #endif
/* /*