Properly handle [inout] string params when calling a Java method from XPCOM. Allocate enough space for PRUnichar string when returning to XPCOM.

Original committer: pedemont%us.ibm.com
Original revision: 1.14
Original date: 2004/10/26 20:30:01
This commit is contained in:
pedemont%us.ibm.com 2006-09-27 15:06:41 +00:00
Родитель 0347f1ae61
Коммит 70f1a00844
1 изменённых файлов: 18 добавлений и 10 удалений

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@ -297,6 +297,7 @@ nsJavaXPTCStub::CallMethod(PRUint16 aMethodIndex,
for (PRUint8 i = 0; i < paramCount && NS_SUCCEEDED(rv); i++)
{
const nsXPTParamInfo &paramInfo = aMethodInfo->GetParam(i);
NS_ASSERTION(!paramInfo.IsDipper(), "Dipper!");
if (!paramInfo.IsRetval()) {
rv = SetupJavaParams(paramInfo, aMethodInfo, aMethodIndex, aParams,
aParams[i], java_params[i], methodSig);
@ -582,16 +583,25 @@ nsJavaXPTCStub::SetupJavaParams(const nsXPTParamInfo &aParamInfo,
case nsXPTType::T_CHAR_STR:
case nsXPTType::T_WCHAR_STR:
{
jobject str;
if (aVariant.val.p) {
void* ptr = nsnull;
if (!aParamInfo.IsOut()) {
ptr = aVariant.val.p;
} else if (aVariant.val.p) {
void** variant = NS_REINTERPRET_CAST(void**, aVariant.val.p);
ptr = *variant;
}
jobject str = nsnull;
if (ptr) {
if (tag == nsXPTType::T_CHAR_STR) {
str = mJavaEnv->NewStringUTF((const char*) aVariant.val.p);
str = mJavaEnv->NewStringUTF((const char*) ptr);
} else {
const PRUnichar* buf = (const PRUnichar*) aVariant.val.p;
const PRUnichar* buf = (const PRUnichar*) ptr;
str = mJavaEnv->NewString(buf, nsCRT::strlen(buf));
}
} else {
str = nsnull;
}
if (str == nsnull) {
str = mJavaEnv->NewStringUTF((const char*)"");
}
if (!aParamInfo.IsOut()) {
@ -1012,7 +1022,6 @@ nsJavaXPTCStub::FinalizeJavaParams(const nsXPTParamInfo &aParamInfo,
case nsXPTType::T_CHAR_STR:
{
// XXX not sure how this should be handled
if (aParamInfo.IsOut()) {
jstring str = nsnull;
if (aParamInfo.IsRetval()) {
@ -1025,7 +1034,6 @@ nsJavaXPTCStub::FinalizeJavaParams(const nsXPTParamInfo &aParamInfo,
if (str) {
jboolean isCopy;
const char* char_ptr = mJavaEnv->GetStringUTFChars(str, &isCopy);
// XXX is this strdup right?
*((char **) aVariant.val.p) = strdup(char_ptr);
if (isCopy) {
mJavaEnv->ReleaseStringUTFChars(str, char_ptr);
@ -1039,7 +1047,6 @@ nsJavaXPTCStub::FinalizeJavaParams(const nsXPTParamInfo &aParamInfo,
case nsXPTType::T_WCHAR_STR:
{
// XXX not sure how this should be handled
if (aParamInfo.IsOut()) {
jstring str = nsnull;
if (aParamInfo.IsRetval()) {
@ -1054,7 +1061,8 @@ nsJavaXPTCStub::FinalizeJavaParams(const nsXPTParamInfo &aParamInfo,
const jchar* wchar_ptr = mJavaEnv->GetStringChars(str, &isCopy);
PRUint32 length = nsCRT::strlen(wchar_ptr);
PRUnichar* string = (PRUnichar*) malloc(length + 1); // add one for null
PRUnichar* string = (PRUnichar*)
nsMemory::Alloc((length + 1) * sizeof(PRUnichar));
memcpy(string, wchar_ptr, length * sizeof(PRUnichar));
string[length] = 0;
*((PRUnichar **) aVariant.val.p) = string;