linphone-PresenceNoteImpl文件对应的JNI层文件分析

说明

这个很短，　自己看。

native函数

    private native long newPresenceNoteImpl(String content, String lang);    private native void unref(long nativePtr);    private native String getContent(long nativePtr);    private native int setContent(long nativePtr, String content);    private native String getLang(long nativePtr);    private native int setLang(long nativePtr, String lang);

具体的函数分析

newPresenceNoteImpl

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    newPresenceNoteImpl * Signature: (Ljava/lang/String;Ljava/lang/String;)J */JNIEXPORT jlong JNICALL Java_org_linphone_core_PresenceNoteImpl_newPresenceNoteImpl(JNIEnv *env, jobject jobj, jstring content, jstring lang) {    LinphonePresenceNote *note;    const char *ccontent = content ? env->GetStringUTFChars(content, NULL) : NULL;    const char *clang = lang ? env->GetStringUTFChars(lang, NULL) : NULL;    note = linphone_presence_note_new(ccontent, clang);    note = linphone_presence_note_ref(note);    if (clang) env->ReleaseStringUTFChars(lang, clang);    if (ccontent) env->ReleaseStringUTFChars(content, ccontent);    return (jlong)note;}

linphone_presence_note_new

LinphonePresenceNote * linphone_presence_note_new(const char *content, const char *lang) {    LinphonePresenceNote *note;    if (content == NULL) return NULL;    note = ms_new0(LinphonePresenceNote, 1);    note->refcnt = 1;    note->content = ms_strdup(content);    if (lang != NULL) {        note->lang = ms_strdup(lang);    }    return note;}

linphone_presence_note_ref

LinphonePresenceNote * linphone_presence_note_ref(LinphonePresenceNote *note) {    note->refcnt++;    return note;}

unref

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    unref * Signature: (J)V */JNIEXPORT void JNICALL Java_org_linphone_core_PresenceNoteImpl_unref(JNIEnv *env, jobject jobj, jlong ptr) {    LinphonePresenceNote *note = (LinphonePresenceNote *)ptr;    linphone_presence_note_unref(note);}

linphone_presence_note_unref

LinphonePresenceNote * linphone_presence_note_unref(LinphonePresenceNote *note) {    note->refcnt--;    if (note->refcnt == 0) {        presence_note_delete(note);        return NULL;    }    return note;}

presence_note_delete

static void presence_note_delete(LinphonePresenceNote *note) {    ms_free(note->content);    if (note->lang != NULL) {        ms_free(note->lang);    }    ms_free(note);}

getContent

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    getContent * Signature: (J)Ljava/lang/String; */JNIEXPORT jstring JNICALL Java_org_linphone_core_PresenceNoteImpl_getContent(JNIEnv *env, jobject jobj, jlong ptr) {    LinphonePresenceNote *note = (LinphonePresenceNote *)ptr;    const char *ccontent = linphone_presence_note_get_content(note);    return ccontent ? env->NewStringUTF(ccontent) : NULL;}

linphone_presence_note_get_content

const char * linphone_presence_note_get_content(const LinphonePresenceNote *note) {    if (note == NULL)        return NULL;    return note->content;}

setContent

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    setContent * Signature: (JLjava/lang/String;)I */JNIEXPORT jint JNICALL Java_org_linphone_core_PresenceNoteImpl_setContent(JNIEnv *env, jobject jobj, jlong ptr, jstring content) {    LinphonePresenceNote *note = (LinphonePresenceNote *)ptr;    const char *ccontent = content ? env->GetStringUTFChars(content, NULL) : NULL;    linphone_presence_note_set_content(note, ccontent);    if (ccontent) env->ReleaseStringUTFChars(content, ccontent);    return (jint)0;}

linphone_presence_note_set_content

int linphone_presence_note_set_content(LinphonePresenceNote *note, const char *content) {    if (content == NULL) return -1;    if (note->content != NULL) {        ms_free(note->content);    }    note->content = ms_strdup(content);    return 0;}

getLang

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    getLang * Signature: (J)Ljava/lang/String; */JNIEXPORT jstring JNICALL Java_org_linphone_core_PresenceNoteImpl_getLang(JNIEnv *env, jobject jobj, jlong ptr) {    LinphonePresenceNote *note = (LinphonePresenceNote *)ptr;    const char *clang = linphone_presence_note_get_lang(note);    return clang ? env->NewStringUTF(clang) : NULL;}

linphone_presence_note_get_lang

const char * linphone_presence_note_get_lang(const LinphonePresenceNote *note) {    if (note == NULL)        return NULL;    return note->lang;}

setLang

/* * Class:     org_linphone_core_PresenceNoteImpl * Method:    setLang * Signature: (JLjava/lang/String;)I */JNIEXPORT jint JNICALL Java_org_linphone_core_PresenceNoteImpl_setLang(JNIEnv *env, jobject jobj, jlong ptr, jstring lang) {    LinphonePresenceNote *note = (LinphonePresenceNote *)ptr;    const char *clang = lang ? env->GetStringUTFChars(lang, NULL) : NULL;    linphone_presence_note_set_lang(note, clang);    if (clang) env->ReleaseStringUTFChars(lang, clang);    return (jint)0;}

linphone_presence_note_set_lang

int linphone_presence_note_set_lang(LinphonePresenceNote *note, const char *lang) {    if (note->lang != NULL) {        ms_free(note->lang);        note->lang = NULL;    }    if (lang != NULL) {        note->lang = ms_strdup(lang);    }    return 0;}