1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#include "com/mapswithme/core/jni_helper.hpp"
#include "platform/socket.hpp"
#include "base/logging.hpp"
#include <memory>
namespace platform
{
class SocketImpl : public Socket
{
public:
SocketImpl()
{
JNIEnv * env = jni::GetEnv();
static jmethodID const socketConstructor = jni::GetConstructorID(env, g_platformSocketClazz, "()V");
jni::TScopedLocalRef localSelf(env, env->NewObject(g_platformSocketClazz, socketConstructor));
m_self = env->NewGlobalRef(localSelf.get());
ASSERT(m_self, ());
}
~SocketImpl()
{
Close();
JNIEnv * env = jni::GetEnv();
env->DeleteGlobalRef(m_self);
}
bool Open(std::string const & host, uint16_t port)
{
JNIEnv * env = jni::GetEnv();
static jmethodID const openMethod =
jni::GetMethodID(env, m_self, "open", "(Ljava/lang/String;I)Z");
jni::TScopedLocalRef hostRef(env, jni::ToJavaString(env, host));
jboolean result = env->CallBooleanMethod(m_self, openMethod, hostRef.get(), static_cast<jint>(port));
if (jni::HandleJavaException(env))
return false;
return result;
}
void Close()
{
JNIEnv * env = jni::GetEnv();
static jmethodID const closeMethod = jni::GetMethodID(env, m_self, "close", "()V");
env->CallVoidMethod(m_self, closeMethod);
jni::HandleJavaException(env);
}
bool Read(uint8_t * data, uint32_t count)
{
JNIEnv * env = jni::GetEnv();
jbyteArray array = env->NewByteArray(count);
static jmethodID const readMethod = jni::GetMethodID(env, m_self, "read", "([BI)Z");
jboolean result = env->CallBooleanMethod(m_self, readMethod, array, static_cast<jint>(count));
if (jni::HandleJavaException(env))
return false;
//this call copies java byte array to native buffer
env->GetByteArrayRegion(array, 0, count, reinterpret_cast<jbyte *>(data));
if (jni::HandleJavaException(env))
return false;
return result;
}
bool Write(uint8_t const * data, uint32_t count)
{
JNIEnv * env = jni::GetEnv();
jni::TScopedLocalByteArrayRef arrayRef(env, env->NewByteArray(count));
//this call copies native buffer to java byte array
env->SetByteArrayRegion(arrayRef.get(), 0, count, reinterpret_cast<const jbyte *>(data));
static jmethodID const writeMethod = jni::GetMethodID(env, m_self, "write", "([BI)Z");
jboolean result = env->CallBooleanMethod(m_self, writeMethod, arrayRef.get(), static_cast<jint>(count));
if (jni::HandleJavaException(env))
return false;
return result;
}
void SetTimeout(uint32_t milliseconds)
{
JNIEnv * env = jni::GetEnv();
static jmethodID const setTimeoutMethod = jni::GetMethodID(env, m_self, "setTimeout", "(I)V");
env->CallVoidMethod(m_self, setTimeoutMethod, static_cast<jint>(milliseconds));
jni::HandleJavaException(env);
};
private:
jobject m_self;
};
std::unique_ptr<Socket> CreateSocket() { return std::make_unique<SocketImpl>(); }
}
|
