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/*
* Copyright (C) NGINX, Inc.
*/
#include <nxt_auto_config.h>
#include <jni.h>
#include <nxt_unit.h>
#include <string.h>
#include "nxt_jni.h"
#include "nxt_jni_InputStream.h"
#include "nxt_jni_URLClassLoader.h"
static jint JNICALL nxt_java_InputStream_readLine(JNIEnv *env, jclass cls,
jlong req_info_ptr, jarray b, jint off, jint len);
static jboolean JNICALL nxt_java_InputStream_isFinished(JNIEnv *env, jclass cls,
jlong req_info_ptr);
static jint JNICALL nxt_java_InputStream_readByte(JNIEnv *env, jclass cls,
jlong req_info_ptr);
static jint JNICALL nxt_java_InputStream_read(JNIEnv *env, jclass cls,
jlong req_info_ptr, jarray b, jint off, jint len);
static jlong JNICALL nxt_java_InputStream_skip(JNIEnv *env, jclass cls,
jlong req_info_ptr, jlong n);
static jint JNICALL nxt_java_InputStream_available(JNIEnv *env, jclass cls,
jlong req_info_ptr);
static jclass nxt_java_InputStream_class;
int
nxt_java_initInputStream(JNIEnv *env, jobject cl)
{
int res;
jclass cls;
cls = nxt_java_loadClass(env, cl, "nginx.unit.InputStream");
if (cls == NULL) {
return NXT_UNIT_ERROR;
}
nxt_java_InputStream_class = (*env)->NewGlobalRef(env, cls);
(*env)->DeleteLocalRef(env, cls);
JNINativeMethod is_methods[] = {
{ (char *) "readLine",
(char *) "(J[BII)I",
nxt_java_InputStream_readLine },
{ (char *) "isFinished",
(char *) "(J)Z",
nxt_java_InputStream_isFinished },
{ (char *) "read",
(char *) "(J)I",
nxt_java_InputStream_readByte },
{ (char *) "read",
(char *) "(J[BII)I",
nxt_java_InputStream_read },
{ (char *) "skip",
(char *) "(JJ)J",
nxt_java_InputStream_skip },
{ (char *) "available",
(char *) "(J)I",
nxt_java_InputStream_available },
};
res = (*env)->RegisterNatives(env, nxt_java_InputStream_class,
is_methods,
sizeof(is_methods) / sizeof(is_methods[0]));
nxt_unit_debug(NULL, "registered InputStream methods: %d", res);
if (res != 0) {
(*env)->DeleteGlobalRef(env, cls);
return NXT_UNIT_ERROR;
}
return NXT_UNIT_OK;
}
static jint JNICALL
nxt_java_InputStream_readLine(JNIEnv *env, jclass cls,
jlong req_info_ptr, jarray out, jint off, jint len)
{
uint8_t *data;
ssize_t res;
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
data = (*env)->GetPrimitiveArrayCritical(env, out, NULL);
res = nxt_unit_request_readline_size(req, len);
if (res > 0) {
res = nxt_unit_request_read(req, data + off, res);
}
nxt_unit_req_debug(req, "readLine '%.*s'", (int) res, (char *) data + off);
(*env)->ReleasePrimitiveArrayCritical(env, out, data, 0);
return res > 0 ? res : -1;
}
static jboolean JNICALL
nxt_java_InputStream_isFinished(JNIEnv *env, jclass cls, jlong req_info_ptr)
{
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
return req->content_length == 0;
}
static jint JNICALL
nxt_java_InputStream_readByte(JNIEnv *env, jclass cls, jlong req_info_ptr)
{
uint8_t b;
ssize_t size;
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
size = nxt_unit_request_read(req, &b, 1);
return size == 1 ? b : -1;
}
static jint JNICALL
nxt_java_InputStream_read(JNIEnv *env, jclass cls, jlong req_info_ptr,
jarray b, jint off, jint len)
{
uint8_t *data;
ssize_t res;
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
data = (*env)->GetPrimitiveArrayCritical(env, b, NULL);
res = nxt_unit_request_read(req, data + off, len);
nxt_unit_req_debug(req, "read '%.*s'", (int) res, (char *) data + off);
(*env)->ReleasePrimitiveArrayCritical(env, b, data, 0);
return res > 0 ? res : -1;
}
static jlong JNICALL
nxt_java_InputStream_skip(JNIEnv *env, jclass cls, jlong req_info_ptr, jlong n)
{
size_t rest, b_size;
nxt_unit_buf_t *buf;
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
rest = n;
buf = req->content_buf;
while (buf != NULL) {
b_size = buf->end - buf->free;
b_size = rest < b_size ? rest : b_size;
buf->free += b_size;
rest -= b_size;
if (rest == 0) {
if (buf->end == buf->free) {
buf = nxt_unit_buf_next(buf);
}
break;
}
buf = nxt_unit_buf_next(buf);
}
n = n < (jlong) req->content_length ? n : (jlong) req->content_length;
req->content_length -= n;
return n;
}
static jint JNICALL
nxt_java_InputStream_available(JNIEnv *env, jclass cls, jlong req_info_ptr)
{
nxt_unit_request_info_t *req;
req = nxt_jlong2ptr(req_info_ptr);
return req->content_length;
}
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