Error importing .h

This topic contains 7 replies, has 2 voices, and was last updated by abakobo 2 years, 2 months ago.

Viewing 8 posts - 1 through 8 (of 8 total)

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Posts

February 13, 2017 at 3:28 am #7125

Hezkore

Participant

I’ve created a test.h file with nothing but

void test(){}

1	void test(){}

And If I try to import it whit this Monkey 2 code

#Import "<mojo>"
#Import "test.h"

Using mojo..

Class MyWindow Extends Window
End

Function Main()
End

#Import "<mojo>"

#Import "test.h"

Using mojo..

Class MyWindow Extends Window

End

Function Main()

End

I get lots of errors.
But if I remote

Class MyWindow Extends Window
End

Class MyWindow Extends Window

End

It works fine!

What am I doing wrong?

February 13, 2017 at 5:38 pm #7135

abakobo

Participant

That’s strange!
Probably an mx2 duplicate def bug.
Or we are always supposed to use .h for definition and .cpp for implementation when using mojo/gui or use static.
With console apps I never had the problem.
Tested with static before the function in .h and works ok
Tested with def in .h and implementation in .cpp/.c and works ok

If you want to see some little example I made to learn externs: https://github.com/abakobo/learn_monkey2
It’s messy and not commented but simple. Will later use these as a base for tutos/samples

February 13, 2017 at 6:10 pm #7136

Hezkore

Participant

I can’t figure out a solution to this…
I’m stuck at this first step right now. :/

February 13, 2017 at 7:30 pm #7139

abakobo

Participant

Your problem here is that you give the implementation ({}) of your function in the .h file. It is ok to do that in c/c++ rules but it is considered BAD practice and nearly nobody does it. So I suppose Mark has not made mx2 compatible with it and sometimes (when using mojo for example) create duplicates of the same header for some internal mx2 reasons.

What’s GOOD practise?
-put static before your function if the implementation is in the .h file (ie: the{}). This will skip duplicates.

[crayon-5cba8795bb3a5516569141 inline="true" ]
static void test(){};

[crayon-5cba8795bb3a5516569141 inline="true" ]

static void test(){};

[/crayon]

Or
-put your implementation in a .c/.cpp file Edit:could not make it work with a .c file!
.h

[crayon-5cba8795bb3ab875570610 inline="true" ]
void Test(void);

[crayon-5cba8795bb3ab875570610 inline="true" ]

void Test(void);

[/crayon]

.cpp

[crayon-5cba8795bb3af569084687 inline="true" ]
void Test(void){};

[crayon-5cba8795bb3af569084687 inline="true" ]

void Test(void){};

[/crayon]

and import the .c/.cpp file along with the .h file in your .monkey2 file

don’t forget to put the ; at end of lines. Sometimes it’s not mandatory but it’ll avoid you error messages.. (in the second case if you don’t put ; in the .h file it will fail to compile)

for better practice use the #ifndef in your .h file

[crayon-5cba8795bb3b4332902045 inline="true" ]
#ifndef TEST_H
#define TEST_H

put your declarations here

#endif

[crayon-5cba8795bb3b4332902045 inline="true" ]

#ifndef TEST_H

#define TEST_H

put your declarations here

#endif

[/crayon]

but here of course test is a bit too simple for a def name!

February 13, 2017 at 7:46 pm #7140

Hezkore

Participant

Thanks abakobo. I’m still a bit confused though (Cause I’m no good at C nor C++)
How would I structure this code into its own .h and .cpp files then?

#ifdef _WIN32
	#include <windows.h>
#else
	#include <sys/mman.h>
	#include <fcntl.h> /* For O_* constants */
#endif // _WIN32

struct LinkedMem {
#ifdef _WIN32
	UINT32	uiVersion;
	DWORD	uiTick;
#else
	uint32_t uiVersion;
	uint32_t uiTick;
#endif
	float	fAvatarPosition[3];
	float	fAvatarFront[3];
	float	fAvatarTop[3];
	wchar_t	name[256];
	float	fCameraPosition[3];
	float	fCameraFront[3];
	float	fCameraTop[3];
	wchar_t	identity[256];
#ifdef _WIN32
	UINT32	context_len;
#else
	uint32_t context_len;
#endif
	unsigned char context[256];
	wchar_t description[2048];
};

LinkedMem *lm = NULL;

void initMumble() {

#ifdef _WIN32
	HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
	if (hMapObject == NULL)
		return;

	lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
	if (lm == NULL) {
		CloseHandle(hMapObject);
		hMapObject = NULL;
		return;
	}
#else
	char memname[256];
	snprintf(memname, 256, "/MumbleLink.%d", getuid());

	int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);

	if (shmfd < 0) {
		return;
	}

	lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));

	if (lm == (void *)(-1)) {
		lm = NULL;
		return;
	}
#endif
}

void updateMumble() {
	if (! lm)
		return;
 
	if(lm->uiVersion != 2) {
		wcsncpy(lm->name, L"TestLink", 256);
		wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);
		lm->uiVersion = 2;
	}
	lm->uiTick++;
 
	// Left handed coordinate system.
	// X positive towards "right".
	// Y positive towards "up".
	// Z positive towards "front".
	//
	// 1 unit = 1 meter
 
	// Unit vector pointing out of the avatar's eyes aka "At"-vector.
	lm->fAvatarFront[0] = 0.0f;
	lm->fAvatarFront[1] = 0.0f;
	lm->fAvatarFront[2] = 1.0f;
 
	// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).
	lm->fAvatarTop[0] = 0.0f;
	lm->fAvatarTop[1] = 1.0f;
	lm->fAvatarTop[2] = 0.0f;
 
	// Position of the avatar (here standing slightly off the origin)
	lm->fAvatarPosition[0] = 0.001f;
	lm->fAvatarPosition[1] = 0.0f;
	lm->fAvatarPosition[2] = 0.5f;
 
	// Same as avatar but for the camera.
	lm->fCameraPosition[0] = 0.0f;
	lm->fCameraPosition[1] = 0.0f;
	lm->fCameraPosition[2] = 0.0f;
 
	lm->fCameraFront[0] = 0.0f;
	lm->fCameraFront[1] = 0.0f;
	lm->fCameraFront[2] = 1.0f;
 
	lm->fCameraTop[0] = 0.0f;
	lm->fCameraTop[1] = 1.0f;
	lm->fCameraTop[2] = 0.0f;
 
	// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).
	wcsncpy(lm->identity, L"Unique ID", 256);
	// Context should be equal for players which should be able to hear each other positional and
	// differ for those who shouldn't (e.g. it could contain the server+port and team)
	memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);
	lm->context_len = 16;
}

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#ifdef _WIN32

#include <windows.h>

#else

#include <sys/mman.h>

#include <fcntl.h> /* For O_* constants */

#endif // _WIN32

struct LinkedMem {

#ifdef _WIN32

UINT32 uiVersion;

DWORD uiTick;

#else

uint32_t uiVersion;

uint32_t uiTick;

#endif

float fAvatarPosition[3];

float fAvatarFront[3];

float fAvatarTop[3];

wchar_t name[256];

float fCameraPosition[3];

float fCameraFront[3];

float fCameraTop[3];

wchar_t identity[256];

#ifdef _WIN32

UINT32 context_len;

#else

uint32_t context_len;

#endif

unsigned char context[256];

wchar_t description[2048];

};

LinkedMem *lm = NULL;

void initMumble() {

#ifdef _WIN32

HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");

if (hMapObject == NULL)

return;

lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));

if (lm == NULL) {

CloseHandle(hMapObject);

hMapObject = NULL;

return;

}

#else

char memname[256];

snprintf(memname, 256, "/MumbleLink.%d", getuid());

int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);

if (shmfd < 0) {

return;

}

lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));

if (lm == (void *)(-1)) {

lm = NULL;

return;

}

#endif

}

void updateMumble() {

if (! lm)

return;

if(lm->uiVersion != 2) {

wcsncpy(lm->name, L"TestLink", 256);

wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);

lm->uiVersion = 2;

}

lm->uiTick++;

// Left handed coordinate system.

// X positive towards "right".

// Y positive towards "up".

// Z positive towards "front".

// 1 unit = 1 meter

// Unit vector pointing out of the avatar's eyes aka "At"-vector.

lm->fAvatarFront[0] = 0.0f;

lm->fAvatarFront[1] = 0.0f;

lm->fAvatarFront[2] = 1.0f;

// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).

lm->fAvatarTop[0] = 0.0f;

lm->fAvatarTop[1] = 1.0f;

lm->fAvatarTop[2] = 0.0f;

// Position of the avatar (here standing slightly off the origin)

lm->fAvatarPosition[0] = 0.001f;

lm->fAvatarPosition[1] = 0.0f;

lm->fAvatarPosition[2] = 0.5f;

// Same as avatar but for the camera.

lm->fCameraPosition[0] = 0.0f;

lm->fCameraPosition[1] = 0.0f;

lm->fCameraPosition[2] = 0.0f;

lm->fCameraFront[0] = 0.0f;

lm->fCameraFront[1] = 0.0f;

lm->fCameraFront[2] = 1.0f;

lm->fCameraTop[0] = 0.0f;

lm->fCameraTop[1] = 1.0f;

lm->fCameraTop[2] = 0.0f;

// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).

wcsncpy(lm->identity, L"Unique ID", 256);

// Context should be equal for players which should be able to hear each other positional and

// differ for those who shouldn't (e.g. it could contain the server+port and team)

memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);

lm->context_len = 16;

}

February 13, 2017 at 8:11 pm #7141

abakobo

Participant

try this without splitting (much easier and there’s something I didn’t get with the split with a .c file!)

[crayon-5cba8795c721e441398914 inline="true" ]#ifdef _WIN32
	#include <windows.h>
#else
	#include <sys/mman.h>
	#include <fcntl.h> /* For O_* constants */
#endif // _WIN32
 
struct LinkedMem {
#ifdef _WIN32
	UINT32	uiVersion;
	DWORD	uiTick;
#else
	uint32_t uiVersion;
	uint32_t uiTick;
#endif
	float	fAvatarPosition[3];
	float	fAvatarFront[3];
	float	fAvatarTop[3];
	wchar_t	name[256];
	float	fCameraPosition[3];
	float	fCameraFront[3];
	float	fCameraTop[3];
	wchar_t	identity[256];
#ifdef _WIN32
	UINT32	context_len;
#else
	uint32_t context_len;
#endif
	unsigned char context[256];
	wchar_t description[2048];
};
 
LinkedMem *lm = NULL;
 
static void initMumble() {
 
#ifdef _WIN32
	HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
	if (hMapObject == NULL)
		return;
 
	lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
	if (lm == NULL) {
		CloseHandle(hMapObject);
		hMapObject = NULL;
		return;
	}
#else
	char memname[256];
	snprintf(memname, 256, "/MumbleLink.%d", getuid());
 
	int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);
 
	if (shmfd < 0) {
		return;
	}
 
	lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));
 
	if (lm == (void *)(-1)) {
		lm = NULL;
		return;
	}
#endif
}
 
static void updateMumble() {
	if (! lm)
		return;
 
	if(lm->uiVersion != 2) {
		wcsncpy(lm->name, L"TestLink", 256);
		wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);
		lm->uiVersion = 2;
	}
	lm->uiTick++;
 
	// Left handed coordinate system.
	// X positive towards "right".
	// Y positive towards "up".
	// Z positive towards "front".
	//
	// 1 unit = 1 meter
 
	// Unit vector pointing out of the avatar's eyes aka "At"-vector.
	lm->fAvatarFront[0] = 0.0f;
	lm->fAvatarFront[1] = 0.0f;
	lm->fAvatarFront[2] = 1.0f;
 
	// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).
	lm->fAvatarTop[0] = 0.0f;
	lm->fAvatarTop[1] = 1.0f;
	lm->fAvatarTop[2] = 0.0f;
 
	// Position of the avatar (here standing slightly off the origin)
	lm->fAvatarPosition[0] = 0.001f;
	lm->fAvatarPosition[1] = 0.0f;
	lm->fAvatarPosition[2] = 0.5f;
 
	// Same as avatar but for the camera.
	lm->fCameraPosition[0] = 0.0f;
	lm->fCameraPosition[1] = 0.0f;
	lm->fCameraPosition[2] = 0.0f;
 
	lm->fCameraFront[0] = 0.0f;
	lm->fCameraFront[1] = 0.0f;
	lm->fCameraFront[2] = 1.0f;
 
	lm->fCameraTop[0] = 0.0f;
	lm->fCameraTop[1] = 1.0f;
	lm->fCameraTop[2] = 0.0f;
 
	// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).
	wcsncpy(lm->identity, L"Unique ID", 256);
	// Context should be equal for players which should be able to hear each other positional and
	// differ for those who shouldn't (e.g. it could contain the server+port and team)
	memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);
	lm->context_len = 16;
}

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[crayon-5cba8795c721e441398914 inline="true" ]#ifdef _WIN32

#include <windows.h>

#else

#include <sys/mman.h>

#include <fcntl.h> /* For O_* constants */

#endif // _WIN32

struct LinkedMem {

#ifdef _WIN32

UINT32 uiVersion;

DWORD uiTick;

#else

uint32_t uiVersion;

uint32_t uiTick;

#endif

float fAvatarPosition[3];

float fAvatarFront[3];

float fAvatarTop[3];

wchar_t name[256];

float fCameraPosition[3];

float fCameraFront[3];

float fCameraTop[3];

wchar_t identity[256];

#ifdef _WIN32

UINT32 context_len;

#else

uint32_t context_len;

#endif

unsigned char context[256];

wchar_t description[2048];

};

LinkedMem *lm = NULL;

static void initMumble() {

#ifdef _WIN32

HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");

if (hMapObject == NULL)

return;

lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));

if (lm == NULL) {

CloseHandle(hMapObject);

hMapObject = NULL;

return;

}

#else

char memname[256];

snprintf(memname, 256, "/MumbleLink.%d", getuid());

int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);

if (shmfd < 0) {

return;

}

lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));

if (lm == (void *)(-1)) {

lm = NULL;

return;

}

#endif

}

static void updateMumble() {

if (! lm)

return;

if(lm->uiVersion != 2) {

wcsncpy(lm->name, L"TestLink", 256);

wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);

lm->uiVersion = 2;

}

lm->uiTick++;

// Left handed coordinate system.

// X positive towards "right".

// Y positive towards "up".

// Z positive towards "front".

// 1 unit = 1 meter

// Unit vector pointing out of the avatar's eyes aka "At"-vector.

lm->fAvatarFront[0] = 0.0f;

lm->fAvatarFront[1] = 0.0f;

lm->fAvatarFront[2] = 1.0f;

// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).

lm->fAvatarTop[0] = 0.0f;

lm->fAvatarTop[1] = 1.0f;

lm->fAvatarTop[2] = 0.0f;

// Position of the avatar (here standing slightly off the origin)

lm->fAvatarPosition[0] = 0.001f;

lm->fAvatarPosition[1] = 0.0f;

lm->fAvatarPosition[2] = 0.5f;

// Same as avatar but for the camera.

lm->fCameraPosition[0] = 0.0f;

lm->fCameraPosition[1] = 0.0f;

lm->fCameraPosition[2] = 0.0f;

lm->fCameraFront[0] = 0.0f;

lm->fCameraFront[1] = 0.0f;

lm->fCameraFront[2] = 1.0f;

lm->fCameraTop[0] = 0.0f;

lm->fCameraTop[1] = 1.0f;

lm->fCameraTop[2] = 0.0f;

// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).

wcsncpy(lm->identity, L"Unique ID", 256);

// Context should be equal for players which should be able to hear each other positional and

// differ for those who shouldn't (e.g. it could contain the server+port and team)

memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);

lm->context_len = 16;

}

[/crayon]

February 13, 2017 at 8:18 pm #7142

Hezkore

Participant

Sadly I get the same error using that code.

Build error: System command 'g++ -static -m32 -s -O3 -mwindows -o "G:/test/test.products/Windows/Test.exe" -Wl,@tmp/lnkFiles1.txt' failed.
g++ -static -m32 -s -O3 -mwindows -o "G:/test/test.products/Windows/Test.exe" -Wl,@tmp/lnkFiles1.txt

G:/test/test.buildv1.1.03/windows_release/build/_1src_2test_0test.cpp.o:test_test.cpp:(.bss+0xc): multiple definition of `lm'

G:/test/test.buildv1.1.03/windows_release/build/_1include_2_0r.cpp.o:_r.cpp:(.bss+0x0): first defined here

collect2.exe: error: ld returned 1 exit status

Build error: System command 'g++ -static -m32 -s -O3 -mwindows -o "G:/test/test.products/Windows/Test.exe" -Wl,@tmp/lnkFiles1.txt' failed.

g++ -static -m32 -s -O3 -mwindows -o "G:/test/test.products/Windows/Test.exe" -Wl,@tmp/lnkFiles1.txt

G:/test/test.buildv1.1.03/windows_release/build/_1src_2test_0test.cpp.o:test_test.cpp:(.bss+0xc): multiple definition of `lm'

G:/test/test.buildv1.1.03/windows_release/build/_1include_2_0r.cpp.o:_r.cpp:(.bss+0x0): first defined here

collect2.exe: error: ld returned 1 exit status

Am I doing something wrong?

#Import "<std>"
#Import "<mojo>"

Using std..
Using mojo..

#Import "mumble.h"

Class MyWindow Extends Window
	Method New()
	End
End

Function Main()
	New AppInstance
End

#Import "<std>"

#Import "<mojo>"

Using std..

Using mojo..

#Import "mumble.h"

Class MyWindow Extends Window

Method New()

End

Function Main()

New AppInstance

End

February 13, 2017 at 9:04 pm #7143

abakobo

Participant

whenever a declaration create duplicates try to add static before it…

in this case I added 3 static keywords and no errors now (on W7)

this doesn’t mean it’s the good solution! but it avoids you spilltin to a .cpp src

[crayon-5cba8795db328859444185 inline="true" ]#ifdef _WIN32
	#include <windows.h>
#else
	#include <sys/mman.h>
	#include <fcntl.h> /* For O_* constants */
#endif // _WIN32
 
struct LinkedMem {
#ifdef _WIN32
	UINT32	uiVersion;
	DWORD	uiTick;
#else
	uint32_t uiVersion;
	uint32_t uiTick;
#endif
	float	fAvatarPosition[3];
	float	fAvatarFront[3];
	float	fAvatarTop[3];
	wchar_t	name[256];
	float	fCameraPosition[3];
	float	fCameraFront[3];
	float	fCameraTop[3];
	wchar_t	identity[256];
#ifdef _WIN32
	UINT32	context_len;
#else
	uint32_t context_len;
#endif
	unsigned char context[256];
	wchar_t description[2048];
};
 
static LinkedMem *lm = NULL;
 
static void initMumble() {
 
#ifdef _WIN32
	HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
	if (hMapObject == NULL)
		return;
 
	lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
	if (lm == NULL) {
		CloseHandle(hMapObject);
		hMapObject = NULL;
		return;
	}
#else
	char memname[256];
	snprintf(memname, 256, "/MumbleLink.%d", getuid());
 
	int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);
 
	if (shmfd < 0) {
		return;
	}
 
	lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));
 
	if (lm == (void *)(-1)) {
		lm = NULL;
		return;
	}
#endif
}
 
static void updateMumble() {
	if (! lm)
		return;
 
	if(lm->uiVersion != 2) {
		wcsncpy(lm->name, L"TestLink", 256);
		wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);
		lm->uiVersion = 2;
	}
	lm->uiTick++;
 
	// Left handed coordinate system.
	// X positive towards "right".
	// Y positive towards "up".
	// Z positive towards "front".
	//
	// 1 unit = 1 meter
 
	// Unit vector pointing out of the avatar's eyes aka "At"-vector.
	lm->fAvatarFront[0] = 0.0f;
	lm->fAvatarFront[1] = 0.0f;
	lm->fAvatarFront[2] = 1.0f;
 
	// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).
	lm->fAvatarTop[0] = 0.0f;
	lm->fAvatarTop[1] = 1.0f;
	lm->fAvatarTop[2] = 0.0f;
 
	// Position of the avatar (here standing slightly off the origin)
	lm->fAvatarPosition[0] = 0.001f;
	lm->fAvatarPosition[1] = 0.0f;
	lm->fAvatarPosition[2] = 0.5f;
 
	// Same as avatar but for the camera.
	lm->fCameraPosition[0] = 0.0f;
	lm->fCameraPosition[1] = 0.0f;
	lm->fCameraPosition[2] = 0.0f;
 
	lm->fCameraFront[0] = 0.0f;
	lm->fCameraFront[1] = 0.0f;
	lm->fCameraFront[2] = 1.0f;
 
	lm->fCameraTop[0] = 0.0f;
	lm->fCameraTop[1] = 1.0f;
	lm->fCameraTop[2] = 0.0f;
 
	// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).
	wcsncpy(lm->identity, L"Unique ID", 256);
	// Context should be equal for players which should be able to hear each other positional and
	// differ for those who shouldn't (e.g. it could contain the server+port and team)
	memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);
	lm->context_len = 16;
}

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[crayon-5cba8795db328859444185 inline="true" ]#ifdef _WIN32

#include <windows.h>

#else

#include <sys/mman.h>

#include <fcntl.h> /* For O_* constants */

#endif // _WIN32

struct LinkedMem {

#ifdef _WIN32

UINT32 uiVersion;

DWORD uiTick;

#else

uint32_t uiVersion;

uint32_t uiTick;

#endif

float fAvatarPosition[3];

float fAvatarFront[3];

float fAvatarTop[3];

wchar_t name[256];

float fCameraPosition[3];

float fCameraFront[3];

float fCameraTop[3];

wchar_t identity[256];

#ifdef _WIN32

UINT32 context_len;

#else

uint32_t context_len;

#endif

unsigned char context[256];

wchar_t description[2048];

};

static LinkedMem *lm = NULL;

static void initMumble() {

#ifdef _WIN32

HANDLE hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");

if (hMapObject == NULL)

return;

lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));

if (lm == NULL) {

CloseHandle(hMapObject);

hMapObject = NULL;

return;

}

#else

char memname[256];

snprintf(memname, 256, "/MumbleLink.%d", getuid());

int shmfd = shm_open(memname, O_RDWR, S_IRUSR | S_IWUSR);

if (shmfd < 0) {

return;

}

lm = (LinkedMem *)(mmap(NULL, sizeof(struct LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));

if (lm == (void *)(-1)) {

lm = NULL;

return;

}

#endif

}

static void updateMumble() {

if (! lm)

return;

if(lm->uiVersion != 2) {

wcsncpy(lm->name, L"TestLink", 256);

wcsncpy(lm->description, L"TestLink is a test of the Link plugin.", 2048);

lm->uiVersion = 2;

}

lm->uiTick++;

// Left handed coordinate system.

// X positive towards "right".

// Y positive towards "up".

// Z positive towards "front".

// 1 unit = 1 meter

// Unit vector pointing out of the avatar's eyes aka "At"-vector.

lm->fAvatarFront[0] = 0.0f;

lm->fAvatarFront[1] = 0.0f;

lm->fAvatarFront[2] = 1.0f;

// Unit vector pointing out of the top of the avatar's head aka "Up"-vector (here Top points straight up).

lm->fAvatarTop[0] = 0.0f;

lm->fAvatarTop[1] = 1.0f;

lm->fAvatarTop[2] = 0.0f;

// Position of the avatar (here standing slightly off the origin)

lm->fAvatarPosition[0] = 0.001f;

lm->fAvatarPosition[1] = 0.0f;

lm->fAvatarPosition[2] = 0.5f;

// Same as avatar but for the camera.

lm->fCameraPosition[0] = 0.0f;

lm->fCameraPosition[1] = 0.0f;

lm->fCameraPosition[2] = 0.0f;

lm->fCameraFront[0] = 0.0f;

lm->fCameraFront[1] = 0.0f;

lm->fCameraFront[2] = 1.0f;

lm->fCameraTop[0] = 0.0f;

lm->fCameraTop[1] = 1.0f;

lm->fCameraTop[2] = 0.0f;

// Identifier which uniquely identifies a certain player in a context (e.g. the ingame name).

wcsncpy(lm->identity, L"Unique ID", 256);

// Context should be equal for players which should be able to hear each other positional and

// differ for those who shouldn't (e.g. it could contain the server+port and team)

memcpy(lm->context, "ContextBlob\x00\x01\x02\x03\x04", 16);

lm->context_len = 16;

}

[/crayon]

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