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releases-comm-central/mailnews/db/mork/morkEnv.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _MDB_
# include "mdb.h"
#endif
#ifndef _MORK_
# include "mork.h"
#endif
#ifndef _MORKNODE_
# include "morkNode.h"
#endif
#ifndef _MORKCH_
# include "morkCh.h"
#endif
#ifndef _MORKENV_
# include "morkEnv.h"
#endif
#ifndef _MORKFACTORY_
# include "morkFactory.h"
#endif
#include "mozilla/Char16.h"
// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// ````` ````` ````` ````` `````
// { ===== begin morkNode interface =====
/*public virtual*/ void morkEnv::CloseMorkNode(
morkEnv* ev) /*i*/ // CloseEnv() only if open
{
if (this->IsOpenNode()) {
this->MarkClosing();
this->CloseEnv(ev);
this->MarkShut();
}
}
/*public virtual*/
morkEnv::~morkEnv() /*i*/ // assert CloseEnv() executed earlier
{
CloseMorkNode(mMorkEnv);
if (mEnv_Heap) {
mork_bool ownsHeap = mEnv_OwnsHeap;
nsIMdbHeap* saveHeap = mEnv_Heap;
if (ownsHeap) {
#ifdef MORK_DEBUG_HEAP_STATS
printf("%d blocks remaining \n",
((orkinHeap*)saveHeap)->HeapBlockCount());
mork_u4* array = (mork_u4*)this;
array -= 3;
// null out heap ptr in mem block so we won't crash trying to use it to
// delete the env.
*array = nullptr;
#endif // MORK_DEBUG_HEAP_STATS
// whoops, this is our heap - hmm. Can't delete it, or not allocate env's
// from an orkinHeap.
delete saveHeap;
}
}
// MORK_ASSERT(mEnv_SelfAsMdbEnv==0);
MORK_ASSERT(mEnv_ErrorHook == 0);
}
/* choose morkBool_kTrue or morkBool_kFalse for kBeVerbose: */
#define morkEnv_kBeVerbose morkBool_kFalse
/*public non-poly*/
morkEnv::morkEnv(const morkUsage& inUsage, nsIMdbHeap* ioHeap,
morkFactory* ioFactory, nsIMdbHeap* ioSlotHeap)
: morkObject(inUsage, ioHeap, morkColor_kNone),
mEnv_Factory(ioFactory),
mEnv_Heap(ioSlotHeap)
,
mEnv_SelfAsMdbEnv(0),
mEnv_ErrorHook(0),
mEnv_HandlePool(0)
,
mEnv_ErrorCount(0),
mEnv_WarningCount(0)
,
mEnv_ErrorCode(NS_OK)
,
mEnv_DoTrace(morkBool_kFalse),
mEnv_AutoClear(morkAble_kDisabled),
mEnv_ShouldAbort(morkBool_kFalse),
mEnv_BeVerbose(morkEnv_kBeVerbose),
mEnv_OwnsHeap(morkBool_kFalse) {
MORK_ASSERT(ioSlotHeap && ioFactory);
if (ioSlotHeap) {
// mEnv_Heap is NOT refcounted:
// nsIMdbHeap_SlotStrongHeap(ioSlotHeap, this, &mEnv_Heap);
mEnv_HandlePool =
new morkPool(morkUsage::kGlobal, (nsIMdbHeap*)0, ioSlotHeap);
MORK_ASSERT(mEnv_HandlePool);
if (mEnv_HandlePool && this->Good()) {
mNode_Derived = morkDerived_kEnv;
mNode_Refs += morkEnv_kWeakRefCountEnvBonus;
}
}
}
/*public non-poly*/
morkEnv::morkEnv(morkEnv* ev, /*i*/
const morkUsage& inUsage, nsIMdbHeap* ioHeap,
nsIMdbEnv* inSelfAsMdbEnv, morkFactory* ioFactory,
nsIMdbHeap* ioSlotHeap)
: morkObject(ev, inUsage, ioHeap, morkColor_kNone, (morkHandle*)0),
mEnv_Factory(ioFactory),
mEnv_Heap(ioSlotHeap)
,
mEnv_SelfAsMdbEnv(inSelfAsMdbEnv),
mEnv_ErrorHook(0),
mEnv_HandlePool(0)
,
mEnv_ErrorCount(0),
mEnv_WarningCount(0)
,
mEnv_ErrorCode(NS_OK)
,
mEnv_DoTrace(morkBool_kFalse),
mEnv_AutoClear(morkAble_kDisabled),
mEnv_ShouldAbort(morkBool_kFalse),
mEnv_BeVerbose(morkEnv_kBeVerbose),
mEnv_OwnsHeap(morkBool_kFalse) {
// $$$ do we need to refcount the inSelfAsMdbEnv nsIMdbEnv??
if (ioFactory && inSelfAsMdbEnv && ioSlotHeap) {
// mEnv_Heap is NOT refcounted:
// nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mEnv_Heap);
mEnv_HandlePool = new (*ioSlotHeap, ev)
morkPool(ev, morkUsage::kHeap, ioSlotHeap, ioSlotHeap);
MORK_ASSERT(mEnv_HandlePool);
if (mEnv_HandlePool && ev->Good()) {
mNode_Derived = morkDerived_kEnv;
mNode_Refs += morkEnv_kWeakRefCountEnvBonus;
}
} else
ev->NilPointerError();
}
NS_IMPL_ISUPPORTS_INHERITED(morkEnv, morkObject, nsIMdbEnv)
/*public non-poly*/ void morkEnv::CloseEnv(
morkEnv* ev) /*i*/ // called by CloseMorkNode();
{
if (this->IsNode()) {
// $$$ release mEnv_SelfAsMdbEnv??
// $$$ release mEnv_ErrorHook??
mEnv_SelfAsMdbEnv = 0;
mEnv_ErrorHook = 0;
morkPool* savePool = mEnv_HandlePool;
morkPool::SlotStrongPool((morkPool*)0, ev, &mEnv_HandlePool);
// free the pool
if (mEnv_SelfAsMdbEnv) {
if (savePool && mEnv_Heap) mEnv_Heap->Free(this->AsMdbEnv(), savePool);
} else {
if (savePool) {
if (savePool->IsOpenNode()) savePool->CloseMorkNode(ev);
delete savePool;
}
// how do we free this? might need to get rid of asserts.
}
// mEnv_Factory is NOT refcounted
this->MarkShut();
} else
this->NonNodeError(ev);
}
// } ===== end morkNode methods =====
// ````` ````` ````` ````` `````
mork_size morkEnv::OidAsHex(void* outBuf, const mdbOid& inOid)
// sprintf(buf, "%lX:^%lX", (long) inOid.mOid_Id, (long) inOid.mOid_Scope);
{
mork_u1* p = (mork_u1*)outBuf;
mork_size outSize = this->TokenAsHex(p, inOid.mOid_Id);
p += outSize;
*p++ = ':';
mork_scope scope = inOid.mOid_Scope;
if (scope < 0x80 && morkCh_IsName((mork_ch)scope)) {
*p++ = (mork_u1)scope;
*p = 0; // null termination
outSize += 2;
} else {
*p++ = '^';
mork_size scopeSize = this->TokenAsHex(p, scope);
outSize += scopeSize + 2;
}
return outSize;
}
mork_u1 morkEnv::HexToByte(mork_ch inFirstHex, mork_ch inSecondHex) {
mork_u1 hi = 0; // high four hex bits
mork_flags f = morkCh_GetFlags(inFirstHex);
if (morkFlags_IsDigit(f))
hi = (mork_u1)(inFirstHex - (mork_ch)'0');
else if (morkFlags_IsUpper(f))
hi = (mork_u1)((inFirstHex - (mork_ch)'A') + 10);
else if (morkFlags_IsLower(f))
hi = (mork_u1)((inFirstHex - (mork_ch)'a') + 10);
mork_u1 lo = 0; // low four hex bits
f = morkCh_GetFlags(inSecondHex);
if (morkFlags_IsDigit(f))
lo = (mork_u1)(inSecondHex - (mork_ch)'0');
else if (morkFlags_IsUpper(f))
lo = (mork_u1)((inSecondHex - (mork_ch)'A') + 10);
else if (morkFlags_IsLower(f))
lo = (mork_u1)((inSecondHex - (mork_ch)'a') + 10);
return (mork_u1)((hi << 4) | lo);
}
// TokenAsHex() is the same as sprintf(outBuf, "%lX", (long) inToken);
// Writes up to 32 hex digits, plus a NUL-terminator. So outBuf must
// be at least 33 bytes.
// Return value is number of characters written, excluding the NUL.
mork_size morkEnv::TokenAsHex(void* outBuf, mork_token inToken) {
static const char morkEnv_kHexDigits[] = "0123456789ABCDEF";
char* p = (char*)outBuf;
char* end = p + 32; // write no more than 32 digits for safety
if (inToken) {
// first write all the hex digits in backwards order:
while (p < end && inToken) // more digits to write?
{
*p++ = morkEnv_kHexDigits[inToken & 0x0F]; // low four bits
inToken >>= 4; // we fervently hope this does not sign extend
}
*p = 0; // end the string with a null byte
char* s = (char*)outBuf; // first byte in string
mork_size size = (mork_size)(p - s); // distance from start
// now reverse the string in place:
// note that p starts on the null byte, so we need predecrement:
while (--p > s) // need to swap another byte in the string?
{
char c = *p; // temp for swap
*p = *s;
*s++ = c; // move s forward here, and p backward in the test
}
return size;
} else // special case for zero integer
{
*p++ = '0'; // write a zero digit
*p = 0; // end with a null byte
return 1; // one digit in hex representation
}
}
void morkEnv::StringToYarn(const PathChar* inString, mdbYarn* outYarn) {
if (outYarn) {
mdb_fill fill =
(inString) ? (mdb_fill)MORK_STRLEN(inString) * sizeof(PathChar) : 0;
if (fill) // have nonempty content?
{
mdb_size size = outYarn->mYarn_Size; // max dest size
if (fill > size) // too much string content?
{
outYarn->mYarn_More = fill - size; // extra string bytes omitted
fill = size; // copy no more bytes than size of yarn buffer
}
void* dest = outYarn->mYarn_Buf; // where bytes are going
if (!dest) // nil destination address buffer?
fill = 0; // we can't write any content at all
if (fill) // anything to copy?
MORK_MEMCPY(dest, inString, fill); // copy fill bytes to yarn
outYarn->mYarn_Fill = fill; // tell yarn size of copied content
} else // no content to put into the yarn
{
outYarn->mYarn_Fill = 0; // tell yarn that string has no bytes
}
outYarn->mYarn_Form = 0; // always update the form slot
} else
this->NilPointerError();
}
morkEnv::PathChar* morkEnv::CopyString(nsIMdbHeap* ioHeap,
const PathChar* inString) {
PathChar* outString = nullptr;
if (ioHeap && inString) {
mork_size size = (MORK_STRLEN(inString) + 1) * sizeof(PathChar);
ioHeap->Alloc(this->AsMdbEnv(), size, (void**)&outString);
if (outString) MORK_STRCPY(outString, inString);
} else
this->NilPointerError();
return outString;
}
void morkEnv::FreeString(nsIMdbHeap* ioHeap, PathChar* ioString) {
if (ioHeap) {
if (ioString) ioHeap->Free(this->AsMdbEnv(), ioString);
} else
this->NilPointerError();
}
void morkEnv::NewError(const char* inString) {
MORK_ASSERT(morkBool_kFalse); // get developer's attention
++mEnv_ErrorCount;
mEnv_ErrorCode = NS_ERROR_FAILURE;
if (mEnv_ErrorHook) mEnv_ErrorHook->OnErrorString(this->AsMdbEnv(), inString);
}
void morkEnv::NewWarning(const char* inString) {
MORK_ASSERT(morkBool_kFalse); // get developer's attention
++mEnv_WarningCount;
if (mEnv_ErrorHook)
mEnv_ErrorHook->OnWarningString(this->AsMdbEnv(), inString);
}
void morkEnv::StubMethodOnlyError() { this->NewError("method is stub only"); }
void morkEnv::OutOfMemoryError() { this->NewError("out of memory"); }
void morkEnv::CantMakeWhenBadError() {
this->NewError("can't make an object when ev->Bad()");
}
static const char morkEnv_kNilPointer[] = "nil pointer";
void morkEnv::NilPointerError() { this->NewError(morkEnv_kNilPointer); }
void morkEnv::NilPointerWarning() { this->NewWarning(morkEnv_kNilPointer); }
void morkEnv::NewNonEnvError() { this->NewError("non-env instance"); }
void morkEnv::NilEnvSlotError() {
if (!mEnv_HandlePool || !mEnv_Factory) {
if (!mEnv_HandlePool) this->NewError("nil mEnv_HandlePool");
if (!mEnv_Factory) this->NewError("nil mEnv_Factory");
} else
this->NewError("unknown nil env slot");
}
void morkEnv::NonEnvTypeError(morkEnv* ev) { ev->NewError("non morkEnv"); }
void morkEnv::ClearMorkErrorsAndWarnings() {
mEnv_ErrorCount = 0;
mEnv_WarningCount = 0;
mEnv_ErrorCode = NS_OK;
mEnv_ShouldAbort = morkBool_kFalse;
}
void morkEnv::AutoClearMorkErrorsAndWarnings() {
if (this->DoAutoClear()) {
mEnv_ErrorCount = 0;
mEnv_WarningCount = 0;
mEnv_ErrorCode = NS_OK;
mEnv_ShouldAbort = morkBool_kFalse;
}
}
/*static*/ morkEnv* morkEnv::FromMdbEnv(
nsIMdbEnv* ioEnv) // dynamic type checking
{
morkEnv* outEnv = 0;
if (ioEnv) {
// Note this cast is expected to perform some address adjustment of the
// pointer, so oenv likely does not equal ioEnv. Do not cast to void*
// first to force an exactly equal pointer (we tried it and it's wrong).
morkEnv* ev = (morkEnv*)ioEnv;
if (ev && ev->IsEnv()) {
if (ev->DoAutoClear()) {
ev->mEnv_ErrorCount = 0;
ev->mEnv_WarningCount = 0;
ev->mEnv_ErrorCode = NS_OK;
}
outEnv = ev;
} else
MORK_ASSERT(outEnv);
} else
MORK_ASSERT(outEnv);
return outEnv;
}
NS_IMETHODIMP
morkEnv::GetErrorCount(mdb_count* outCount, mdb_bool* outShouldAbort) {
if (outCount) *outCount = mEnv_ErrorCount;
if (outShouldAbort) *outShouldAbort = mEnv_ShouldAbort;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetWarningCount(mdb_count* outCount, mdb_bool* outShouldAbort) {
if (outCount) *outCount = mEnv_WarningCount;
if (outShouldAbort) *outShouldAbort = mEnv_ShouldAbort;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetEnvBeVerbose(mdb_bool* outBeVerbose) {
NS_ENSURE_ARG_POINTER(outBeVerbose);
*outBeVerbose = mEnv_BeVerbose;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::SetEnvBeVerbose(mdb_bool inBeVerbose) {
mEnv_BeVerbose = inBeVerbose;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetDoTrace(mdb_bool* outDoTrace) {
NS_ENSURE_ARG_POINTER(outDoTrace);
*outDoTrace = mEnv_DoTrace;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::SetDoTrace(mdb_bool inDoTrace) {
mEnv_DoTrace = inDoTrace;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetAutoClear(mdb_bool* outAutoClear) {
NS_ENSURE_ARG_POINTER(outAutoClear);
*outAutoClear = DoAutoClear();
return NS_OK;
}
NS_IMETHODIMP
morkEnv::SetAutoClear(mdb_bool inAutoClear) {
if (inAutoClear)
EnableAutoClear();
else
DisableAutoClear();
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetErrorHook(nsIMdbErrorHook** acqErrorHook) {
NS_ENSURE_ARG_POINTER(acqErrorHook);
*acqErrorHook = mEnv_ErrorHook;
NS_IF_ADDREF(mEnv_ErrorHook);
return NS_OK;
}
NS_IMETHODIMP
morkEnv::SetErrorHook(nsIMdbErrorHook* ioErrorHook) // becomes referenced
{
mEnv_ErrorHook = ioErrorHook;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::GetHeap(nsIMdbHeap** acqHeap) {
NS_ENSURE_ARG_POINTER(acqHeap);
nsIMdbHeap* outHeap = mEnv_Heap;
if (acqHeap) *acqHeap = outHeap;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::SetHeap(nsIMdbHeap* ioHeap) // becomes referenced
{
nsIMdbHeap_SlotStrongHeap(ioHeap, this, &mEnv_Heap);
return NS_OK;
}
// } ----- end attribute methods -----
NS_IMETHODIMP
morkEnv::ClearErrors() // clear errors beore re-entering db API
{
mEnv_ErrorCount = 0;
mEnv_ErrorCode = NS_OK;
mEnv_ShouldAbort = morkBool_kFalse;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::ClearWarnings() // clear warning
{
mEnv_WarningCount = 0;
return NS_OK;
}
NS_IMETHODIMP
morkEnv::ClearErrorsAndWarnings() // clear both errors & warnings
{
ClearMorkErrorsAndWarnings();
return NS_OK;
}
// } ===== end nsIMdbEnv methods =====
// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
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