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Enhance the vfstrace.c extension to show symbolic names for the various

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SHM locks.

FossilOrigin-Name: c0dd7de8f1e8eb745a8beff086d8b40b289c2dd75fe099a86ccc2bd0581f5e9a
This commit is contained in:
drh 2024-11-13 18:23:18 +00:00
parent 26c080a04b
commit 104ab7e81f
3 changed files with 26 additions and 9 deletions
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21
ext/misc/vfstrace.c
View File

@ -624,6 +624,16 @@ static int vfstraceDeviceCharacteristics(sqlite3_file *pFile){
** Shared-memory operations.
*/
static int vfstraceShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
static const char *azLockName[] = {
"WRITE",
"CKPT",
"RECOVER",
"READ0",
"READ1",
"READ2",
"READ3",
"READ4",
};
vfstrace_file *p = (vfstrace_file *)pFile;
vfstrace_info *pInfo = p->pInfo;
int rc;
@ -637,8 +647,15 @@ static int vfstraceShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
if( flags & ~(0xf) ){
sqlite3_snprintf(sizeof(zLck)-i, &zLck[i], "|0x%x", flags);
}
vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=%d,n=%d,%s)",
pInfo->zVfsName, p->zFName, ofst, n, &zLck[1]);
if( ofst>=0 && ofst<sizeof(azLockName)/sizeof(azLockName[0]) ){
vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=%d(%s),n=%d,%s)",
pInfo->zVfsName, p->zFName, ofst, azLockName[ofst],
n, &zLck[1]);
}else{
vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=5d,n=%d,%s)",
pInfo->zVfsName, p->zFName, ofst,
n, &zLck[1]);
}
rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
vfstrace_print_errcode(pInfo, " -> %s\n", rc);
return rc;

12
manifest
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@ -1,5 +1,5 @@
C Fix\sa\smemory\sleak\sin\sthe\s".dump"\scommand\sof\sthe\sCLI\sthat\scan\soccur\sif\san\nerror\sother\sthan\sdatabase\scorruption\sis\sseen\swhile\strying\sto\squery\sthe\ndatabase.
D 2024-11-13T18:04:49.647
C Enhance\sthe\svfstrace.c\sextension\sto\sshow\ssymbolic\snames\sfor\sthe\svarious\nSHM\slocks.
D 2024-11-13T18:23:18.773
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md e108e1e69ae8e8a59e93c455654b8ac9356a11720d3345df2a4743e9590fb20d
@ -450,7 +450,7 @@ F ext/misc/urifuncs.c f71360d14fa9e7626b563f1f781c6148109462741c5235ac63ae0f8917
F ext/misc/uuid.c 5bb2264c1b64d163efa46509544fd7500cb8769cb7c16dd52052da8d961505cf
F ext/misc/vfslog.c 3932ab932eeb2601dbc4447cb14d445aaa9fbe43b863ef5f014401c3420afd20
F ext/misc/vfsstat.c a85df08654743922a19410d7b1e3111de41bb7cd07d20dd16eda4e2b808d269d
F ext/misc/vfstrace.c ac76a4ac4d907774fd423cc2b61410c756f9d0782e27cf6032e058594accaaca
F ext/misc/vfstrace.c 72b7cda31777173b0ca78c6c92968c17aba635682205945e394fff27b377bb81
F ext/misc/vtablog.c 1100250ce8782db37c833e3a9a5c9a3ecf1af5e15b8325572b82e6e0a138ffb5
F ext/misc/vtshim.c 1976e6dd68dd0d64508c91a6dfab8e75f8aaf6cd
F ext/misc/wholenumber.c 0fa0c082676b7868bf2fa918e911133f2b349bcdceabd1198bba5f65b4fc0668
@ -2199,8 +2199,8 @@ F tool/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd7227350
F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
F tool/warnings.sh 49a486c5069de041aedcbde4de178293e0463ae9918ecad7539eedf0ec77a139
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P 0611e2b0cf3f33c28cc9ff6c5da7ebba2033bcbda5b1072a30021a3e1fb4e738
R ae1e95a303369ff7949c51518d63ae67
P 2560cc7072c923f534a5de1e15d2b0dd4ac5faf0a8876d9e3bf9804345585444
R 5d29f4bc70b99f0334d8d6e56e448522
U drh
Z 5eaa8df8893f82fa2c87e2122f21eb00
Z 8e77042ea0a98703802cf67ef314193e
# Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@ -1 +1 @@
2560cc7072c923f534a5de1e15d2b0dd4ac5faf0a8876d9e3bf9804345585444
c0dd7de8f1e8eb745a8beff086d8b40b289c2dd75fe099a86ccc2bd0581f5e9a