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mdbx: minor refine/fix lock-related erro logging.

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Change-Id: Id507819b6b2b0c1a57ec71bd031c5068cb2098e1
This commit is contained in:
Leonid Yuriev
2019-12-21 18:55:56 +03:00
parent e3d328621e
commit a5fb5887f9
3 changed files with 25 additions and 30 deletions
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34
src/elements/lck-windows.c
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@@ -167,7 +167,7 @@ void mdbx_txn_unlock(MDBX_env *env) {
: funlock(env->me_lazy_fd, LCK_BODY);
LeaveCriticalSection(&env->me_windowsbug_lock);
if (!rc)
mdbx_panic("%s failed: errcode %u", __func__, GetLastError());
mdbx_panic("%s failed: err %u", __func__, GetLastError());
}
/*----------------------------------------------------------------------------*/
@@ -201,7 +201,7 @@ MDBX_INTERNAL_FUNC void mdbx_rdt_unlock(MDBX_env *env) {
/* transite from S-E (locked) to S-? (used), e.g. unlock upper-part */
if ((env->me_flags & MDBX_EXCLUSIVE) == 0 &&
!funlock(env->me_lfd, LCK_UPPER))
mdbx_panic("%s failed: errcode %u", __func__, GetLastError());
mdbx_panic("%s failed: err %u", __func__, GetLastError());
}
mdbx_srwlock_ReleaseShared(&env->me_remap_guard);
}
@@ -447,8 +447,7 @@ static int internal_seize_lck(HANDLE lfd) {
mdbx_jitter4testing(false);
if (!flock(lfd, LCK_EXCLUSIVE | LCK_WAITFOR, LCK_UPPER)) {
rc = GetLastError() /* 2) something went wrong, give up */;
mdbx_error("%s(%s) failed: errcode %u", __func__,
"?-?(free) >> ?-E(middle)", rc);
mdbx_error("%s, err %u", "?-?(free) >> ?-E(middle)", rc);
return rc;
}
@@ -463,8 +462,8 @@ static int internal_seize_lck(HANDLE lfd) {
if (rc != ERROR_SHARING_VIOLATION && rc != ERROR_LOCK_VIOLATION) {
/* 6) something went wrong, give up */
if (!funlock(lfd, LCK_UPPER))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
"?-E(middle) >> ?-?(free)", GetLastError());
mdbx_panic("%s(%s) failed: err %u", __func__, "?-E(middle) >> ?-?(free)",
GetLastError());
return rc;
}
@@ -475,13 +474,12 @@ static int internal_seize_lck(HANDLE lfd) {
mdbx_jitter4testing(false);
if (rc != MDBX_RESULT_FALSE)
mdbx_error("%s(%s) failed: errcode %u", __func__,
"?-E(middle) >> S-E(locked)", rc);
mdbx_error("%s, err %u", "?-E(middle) >> S-E(locked)", rc);
/* 8) now on S-E (locked) or still on ?-E (middle),
* transite to S-? (used) or ?-? (free) */
if (!funlock(lfd, LCK_UPPER))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
mdbx_panic("%s(%s) failed: err %u", __func__,
"X-E(locked/middle) >> X-?(used/free)", GetLastError());
/* 9) now on S-? (used, DONE) or ?-? (free, FAILURE) */
@@ -502,7 +500,7 @@ MDBX_INTERNAL_FUNC int mdbx_lck_seize(MDBX_env *env) {
mdbx_jitter4testing(false);
if (!flock(env->me_lazy_fd, LCK_SHARED | LCK_DONTWAIT, LCK_WHOLE)) {
rc = GetLastError();
mdbx_error("%s(%s) failed: errcode %u", __func__, "without-lck", rc);
mdbx_error("%s, err %u", "without-lck", rc);
return rc;
}
return MDBX_RESULT_FALSE;
@@ -519,14 +517,13 @@ MDBX_INTERNAL_FUNC int mdbx_lck_seize(MDBX_env *env) {
* while opening db in valid (non-conflict) mode. */
if (!flock(env->me_lazy_fd, LCK_EXCLUSIVE | LCK_DONTWAIT, LCK_BODY)) {
rc = GetLastError();
mdbx_error("%s(%s) failed: errcode %u", __func__,
"lock-against-without-lck", rc);
mdbx_error("%s, err %u", "lock-against-without-lck", rc);
mdbx_jitter4testing(false);
lck_unlock(env);
} else {
mdbx_jitter4testing(false);
if (!funlock(env->me_lazy_fd, LCK_BODY))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
mdbx_panic("%s(%s) failed: err %u", __func__,
"unlock-against-without-lck", GetLastError());
}
}
@@ -548,7 +545,7 @@ MDBX_INTERNAL_FUNC int mdbx_lck_downgrade(MDBX_env *env) {
if (env->me_flags & MDBX_EXCLUSIVE) {
/* transite from E-E to E_? (exclusive-read) */
if (!funlock(env->me_lfd, LCK_UPPER))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
mdbx_panic("%s(%s) failed: err %u", __func__,
"E-E(exclusive-write) >> E-?(exclusive-read)", GetLastError());
return MDBX_SUCCESS /* 2) now at E-? (exclusive-read), done */;
}
@@ -556,21 +553,20 @@ MDBX_INTERNAL_FUNC int mdbx_lck_downgrade(MDBX_env *env) {
/* 3) now at E-E (exclusive-write), transite to ?_E (middle) */
if (!funlock(env->me_lfd, LCK_LOWER))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
mdbx_panic("%s(%s) failed: err %u", __func__,
"E-E(exclusive-write) >> ?-E(middle)", GetLastError());
/* 4) now at ?-E (middle), transite to S-E (locked) */
if (!flock(env->me_lfd, LCK_SHARED | LCK_DONTWAIT, LCK_LOWER)) {
int rc = GetLastError() /* 5) something went wrong, give up */;
mdbx_error("%s(%s) failed: errcode %u", __func__,
"?-E(middle) >> S-E(locked)", rc);
mdbx_error("%s, err %u", "?-E(middle) >> S-E(locked)", rc);
return rc;
}
/* 6) got S-E (locked), continue transition to S-? (used) */
if (!funlock(env->me_lfd, LCK_UPPER))
mdbx_panic("%s(%s) failed: errcode %u", __func__,
"S-E(locked) >> S-?(used)", GetLastError());
mdbx_panic("%s(%s) failed: err %u", __func__, "S-E(locked) >> S-?(used)",
GetLastError());
return MDBX_SUCCESS /* 7) now at S-? (used), done */;
}