Add the "mutexfree-shmlock" patch to this branch.

FossilOrigin-Name: c3191fc8fcb0775f87f55cb8124e0c36caa54993c2a5fe770d437e4f6ee72d77

diff --cc manifest
index 894b8432a6aee2b552f6e82e733e148dafebcd50,2f7fef6936271fb4f15f2d9ef19b0fde041f5a3c..9934b66edf86f7c435e1b97ce394cc857835acee
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,10 -1,10 +1,10 @@@
- C Fix\sa\stest\sscript\sproblem\sin\swal2savepoint.test.
- D 2018-12-18T18:16:00.494
 -C Make\sSQLITE_MFS_NSHARD\sa\scompile\stime\ssetting.
 -D 2018-12-10T16:52:31.796
++C Add\sthe\s"mutexfree-shmlock"\spatch\sto\sthis\sbranch.
++D 2018-12-18T19:46:50.625
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 -F Makefile.in 68d0ba0f0b533d5bc84c78c13a6ce84ee81183a67014caa47a969e67f028fa1c
 +F Makefile.in d8b254f8bb81bab43c340d70d17dc3babab40fcc8a348c8255881f780a45fee6
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 -F Makefile.msc b7d4a710fa3f0b8cfc532ff195b85dc1ba2a8ad34343cb3d67639f28f0a24306
 +F Makefile.msc 3c4c7e94419ff28cb68850188c9d153b343aed4c5ebed5965426232ed67ff9d9
  F README.md 377233394b905d3b2e2b33741289e093bc93f2e7adbe00923b2c5958c9a9edee
  F VERSION 453e2f4529ca208196d5567db28d549d7151f79efd33f6e6cfe6e613e583a0be
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@@ -496,28 -491,28 +496,28 @@@ F src/os.c 8aeb0b0f40f8f5b0da03fe497066
  F src/os.h 48388821692e87da174ea198bf96b1b2d9d83be5dfc908f673ee21fafbe0d432
  F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
  F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
- F src/os_unix.c 1aa113b261a0ad44fd410a001f6e39bfc1ebd4279b2fb8c2d636a7620d76a45a
 -F src/os_unix.c e191348d66fcbcf137cb2497de2c1e2ccca3caac0515a42c1a1d38043f519e9e
++F src/os_unix.c 9886c03162c253d0845c40baef0f105bc540d53efc8378c2ef1598406c26d9be
  F src/os_win.c 85d9e532d0444ab6c16d7431490c2e279e282aa0917b0e988996b1ae0de5c5a0
  F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
 -F src/pager.c 75e0f3cfa3962c714f519f8a3d1e67ecca1c91de0e010a036b988e40ce9e4c73
 -F src/pager.h 217921e81eb5fe455caa5cda96061959706bcdd29ddb57166198645ef7822ac3
 -F src/parse.y 5cf85c2b9dfac38ac4e2bf2776484705186ce2eda8631e65cc0b04bf566c1173
 +F src/pager.c bd11bf6971789994b4c1972019f16caf6e5ed5a59165d65f0147535aab191703
 +F src/pager.h d8cf37b3415c742d1f267ae2e0e6495826a72d403cbdbefdab2e2f5ff2a1dde7
 +F src/parse.y 8206217fe7fa96652aa1b8a797246e23b30a9d4c1a5175d9c12b13750f51dc2f
  F src/pcache.c 696a01f1a6370c1b50a09c15972bc3bee3333f8fcd1f2da8e9a76b1b062c59ee
  F src/pcache.h 4f87acd914cef5016fae3030343540d75f5b85a1877eed1a2a19b9f284248586
 -F src/pcache1.c ad0ffc5b35b0280d045ac569d34d4b842e3e6a4a118f6396b320987a0957afcc
 -F src/pragma.c 4e056f042683b99c4ea0db395f68d051b1a95833ab40951c40d3ef7e1fee1354
 -F src/pragma.h fdd03d78a7497f74a3f652909f945328480089189526841ae829ce7313d98d13
 -F src/prepare.c 66b5f9791a3ef57131cbba58c33104ebea814a70a5cfcafabf5aed5a3e3858fe
 +F src/pcache1.c ddc9fc7d9861cf3a1f30660264b76b1ae9e1dce5dbba085cf001d5cb6b41cf8c
 +F src/pragma.c 3b23e9eb390888a4d2c71c86be6c710c34179657f4f039fae019ba660be00ca9
 +F src/pragma.h 7003ea8e45e5da0a7cd6d35846214f9ae9ecf5be66b268415ceea5855324af11
 +F src/prepare.c 0e8fc0deaf36da104e08d07ce7d97bc09ab57d078b399381532fec3fa1d3f2bb
  F src/printf.c 0f1177cf1dd4d7827bf64d840768514ec76409abecaca9e8b577dbd065150381
 -F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
 -F src/resolve.c 976e7879286a1eecdc71ceff64f6d1b3f58c8f8096537ba668b3dc0887f410c1
 +F src/random.c f27af4099afaea7284ade5c206224dcfdb2334cfd119d018b470d46356b3f27d
 +F src/resolve.c 72fe8cae7326b979e7258ab4c531956951e1a5f3fe8644c646abaec1b2eb6d95
  F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
 -F src/select.c 61e867a906f140b73baf4ce7a201ad6dcba30820969f5618ee40e9a0d32c6f5f
 -F src/shell.c.in 1f0819e69fb1ebd2eb44695530dc43936608bf9b752981a0ffd4e2e4a9e3883d
 -F src/sqlite.h.in 908ec406feefc4c7e1486a2e3dc30a8bfb51c5a345a8e8130ac201962db171c4
 +F src/select.c ca760497a7a0263b29ca4001760eac53de7c05b0b9edb12adeae1a1c44466779
 +F src/shell.c.in 207da30342db0b6fac8b2487abd60b059a5ea80cc9494bd1db76a1dd4aae7cca
 +F src/sqlite.h.in 846968c2880c2223e0d65c544698fedcf45bbddc52693a9b020519725690e1fd
  F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
  F src/sqlite3ext.h 960f1b86c3610fa23cb6a267572a97dcf286e77aa0dd3b9b23292ffaa1ea8683
 -F src/sqliteInt.h 97adda953e7f118d47b8135f76f88c6420ff6707285782616f393a9ea255d577
 +F src/sqliteInt.h 05dd8ce0e386ced2138087b618de585061c0da4475dfe14f578fbe254e1efd4b
  F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
  F src/status.c 46e7aec11f79dad50965a5ca5fa9de009f7d6bde08be2156f1538a0a296d4d0e
  F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
@@@ -563,12 -558,12 +563,12 @@@ F src/test_rtree.c 671f3fae50ff116ef2e3
  F src/test_schema.c f575932cb6274d12147a77e13ea4b49d52408513
  F src/test_server.c a2615049954cbb9cfb4a62e18e2f0616e4dc38fe
  F src/test_sqllog.c 11e6ce7575f489155c604ac4b439f2ac1d3d5aef
- F src/test_superlock.c 4839644b9201da822f181c5bc406c0b2385f672e
+ F src/test_superlock.c f4d4cc7319a608a54b7608158e8c7135fac19b88d6179e5bf17080e89d1f0278
  F src/test_syscall.c 1073306ba2e9bfc886771871a13d3de281ed3939
 -F src/test_tclsh.c 06317648b0d85a85fd823f7973b55535c59a3156c1ef59394fe511f932cfa78d
 +F src/test_tclsh.c c225ebf05d8905e204580198ffaa09847256ac58af04af632fde3fd760475d90
  F src/test_tclvar.c 33ff42149494a39c5fbb0df3d25d6fafb2f668888e41c0688d07273dcb268dfc
  F src/test_thread.c 911d15fb14e19c0c542bdc8aabf981c2f10a4858
- F src/test_vfs.c 112f1f9271c33c211812e0e681830a84262dac065da58579ff49f9cefec97d4f
+ F src/test_vfs.c 194b8e78e9b4279bc69693cb5cfc343e0a08482c430a571ec96d80440e337a44
  F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
  F src/test_windirent.c a895e2c068a06644eef91a7f0a32182445a893b9a0f33d0cdb4283dca2486ac1
  F src/test_windirent.h 90dfbe95442c9762357fe128dc7ae3dc199d006de93eb33ba3972e0a90484215
@@@ -594,8 -589,8 +594,8 @@@ F src/vdbesort.c 90aad5a92608f2dd771c96
  F src/vdbetrace.c 79d6dbbc479267b255a7de8080eee6e729928a0ef93ed9b0bfa5618875b48392
  F src/vtab.c 70188a745dc4e57d26e942681ff4b2912b7c8249ad5de3f60f0677b4337bcfaa
  F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
- F src/wal.c dca50fc1279f726751947aaa9334ad946094f55f6b0a850e70e58e41037f9433
 -F src/wal.c d1c4f4edd172d4b9320d785304bad3efc433baf672621653017434ab87f3f336
 -F src/wal.h 606292549f5a7be50b6227bd685fa76e3a4affad71bb8ac5ce4cb5c79f6a176a
++F src/wal.c da000d7e4e4702eb4d2cf7c08d734db8b522c3ac43350323a0df0968ba566925
 +F src/wal.h 4ef31f6defdd12877eff7832eb5f56c1f898bc074ac5aab67a539f9c59cb8118
  F src/walker.c fb94aadc9099ff9c6506d0a8b88d51266005bcaa265403f3d7caf732a562eb66
  F src/where.c 3818e8a736a05d2cb194e64399af707e367fbcc5c251d785804d02eaf121288e
  F src/whereInt.h f125f29fca80890768e0b2caa14f95db74b2dacd3a122a168f97aa7b64d6968f
@@@ -1196,7 -1180,8 +1196,7 @@@ F test/pagesize.test 5769fc62d8c890a83a
  F test/pcache.test c8acbedd3b6fd0f9a7ca887a83b11d24a007972b
  F test/pcache2.test af7f3deb1a819f77a6d0d81534e97d1cf62cd442
  F test/percentile.test 4243af26b8f3f4555abe166f723715a1f74c77ff
- F test/permutations.test d0f878173c36562b50898ecccc1a021f06dbb17c3b41ee5b6e620eb4c872a73c
 -F test/permutations.test c2e5f618a71d1a7e50216325dd056f6ec16439b3c98d87bcd2df381297e5dc97
++F test/permutations.test c26601c1db80a67a54353af19a63a6ff5fbf8c80a2b2554e10e4f9030c428fee
  F test/pg_common.tcl 301ac19c1a52fd55166d26db929b3b89165c634d52b5f8ad76ea8cb06960db30
  F test/pragma.test c267bf02742c823a191960895b3d52933cebd7beee26757d1ed694f213fcd867
  F test/pragma2.test e5d5c176360c321344249354c0c16aec46214c9f
@@@ -1609,17 -1593,8 +1610,17 @@@ F test/vtabJ.test d7b73675708cf63cfcb9d
  F test/vtab_alter.test 736e66fb5ec7b4fee58229aa3ada2f27ec58bc58c00edae4836890c3784c6783
  F test/vtab_err.test dcc8b7b9cb67522b3fe7a272c73856829dae4ab7fdb30399aea1b6981bda2b65
  F test/vtab_shared.test 5253bff2355a9a3f014c15337da7e177ab0ef8ad
- F test/wal.test 613efec03e517e1775d86b993a54877d2e29a477
+ F test/wal.test cdf0ca6cc0447520d19ef1c83287824ebeb3e82d75af856511ba96841a79fc9b
 -F test/wal2.test 155b9efa999bdb38ce1cd729b9a4fcdbffd6b88be27f039bad1d2929d287d918
 +F test/wal2.test a225bafac35a47765b890bacdeb57e5e81039f21cc18a1e8ce88eb76e56b843c
 +F test/wal2big.test 0b4ec526f9ca4bbabc355042c38045ae2e253fb46eb327bb7693d0122bc6968b
 +F test/wal2concurrent.test 7fc3e570073683a2a28f42bda46ecf516f5bc82afd703c1fbf4aa38e18fb3361
 +F test/wal2lock.test 0ef98d72dc6bcf7711dedd684760488400d9a9a6eec0dc5d3822060437793552
 +F test/wal2recover.test ba8f4bc9397c838734619f9e759bd98b00e355347b3cf80a2e677610d231d5d8
 +F test/wal2recover2.test 3176a03eccebb203e5c5635d94624bf573392fccb3f9d39d9d9a27aab96e4c88
 +F test/wal2rewrite.test 6ca6f631ffcf871240beab5f02608913fd075c6d0d31310b026c8383c65c9f9c
 +F test/wal2savepoint.test b5b3137f5f11c40294ef5be6c9576143fab63296f44856d15beee0359bbdeb57
 +F test/wal2simple.test 96206c98bf64ab20ec00a1c0f6c709e258b98b39f2149889361f31966ce5a703
 +F test/wal2snapshot.test 95a919e1c73dee0e0212d10931d03cc1116f68a0ff603163e551aaa5ac7025c1
  F test/wal3.test 2a93004bc0fb2b5c29888964024695bade278ab2
  F test/wal4.test 4744e155cd6299c6bd99d3eab1c82f77db9cdb3c
  F test/wal5.test 9c11da7aeccd83a46d79a556ad11a18d3cb15aa9
@@@ -1812,7 -1783,7 +1813,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P a2c618c0a45e1b1d271a4a981ee1e3b368dfcce94eda5c2d7d08f794784046d9
- R 401d56567e7ccded06481190d60905d2
 -P d2c785f94cc6b704ce29147399e2c473fd0f4ff377f1379bd29178bf6d127c1a
 -R 405c2e0a847d1dc9742f041e349c6a79
++P e388d02940e8c17e8e3f460643d988c8f523382df343f4fe766c2da17878e98d b9a741519055a8560ec1d0ab7d0c15ff8db53e740011825506cd2ede11c956f0
++R 9372febc05219e660f9e03e31a064ff1
  U dan
- Z fd40ed8c5ba115c1458cb1532edc718e
 -Z 0d67b443d35d0a267898c50a3a55aea3
++Z 52542d1d3ae1e576093729b891bf71b2

diff --cc manifest.uuid
index b2ee1bd12e20e9f520f8a15c569b9707a53f3852,890ad2c80ff81aa5f7e051d8826521566f51454a..37f165021c9b09242f30e544db46e38904f74b08
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- e388d02940e8c17e8e3f460643d988c8f523382df343f4fe766c2da17878e98d
 -b9a741519055a8560ec1d0ab7d0c15ff8db53e740011825506cd2ede11c956f0
++c3191fc8fcb0775f87f55cb8124e0c36caa54993c2a5fe770d437e4f6ee72d77

diff --cc src/os_unix.c
Simple merge

diff --cc src/wal.c
Simple merge

diff --cc test/permutations.test
Simple merge