C++ MAGIC_CHECK函数代码示例

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本文整理汇总了C++中MAGIC_CHECK函数的典型用法代码示例。如果您正苦于以下问题：C++ MAGIC_CHECK函数的具体用法？C++ MAGIC_CHECK怎么用？C++ MAGIC_CHECK使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了MAGIC_CHECK函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: videobuf_vmalloc_free

void videobuf_vmalloc_free(struct videobuf_buffer *buf)
{
	struct videobuf_vmalloc_memory *mem = buf->priv;

	/* mmapped memory can't be freed here, otherwise mmapped region
	   would be released, while still needed. In this case, the memory
	   release should happen inside videobuf_vm_close().
	   So, it should free memory only if the memory were allocated for
	   read() operation.
	 */
	if ((buf->memory != V4L2_MEMORY_USERPTR) || buf->baddr)
		return;

	if (!mem)
		return;

	MAGIC_CHECK(mem->magic, MAGIC_VMAL_MEM);

	vfree(mem->vaddr);
	mem->vaddr = NULL;

	return;
}

开发者ID:CSCLOG，项目名称:beaglebone，代码行数:23，代码来源:videobuf-vmalloc.c

示例2: __videobuf_iolock

static int __videobuf_iolock(struct videobuf_queue *q,
			     struct videobuf_buffer *vb,
			     struct v4l2_framebuffer *fbuf)
{
	int err, pages;
	dma_addr_t bus;
	struct videobuf_dma_sg_memory *mem = vb->priv;
	BUG_ON(!mem);

	MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);

	switch (vb->memory) {
	case V4L2_MEMORY_MMAP:
	case V4L2_MEMORY_USERPTR:
		if (0 == vb->baddr) {
			/* no userspace addr -- kernel bounce buffer */
			pages = PAGE_ALIGN(vb->size) >> PAGE_SHIFT;
			err = videobuf_dma_init_kernel(&mem->dma,
						       DMA_FROM_DEVICE,
						       pages);
			if (0 != err)
				return err;
		} else if (vb->memory == V4L2_MEMORY_USERPTR) {

开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:23，代码来源:videobuf-dma-sg.c

示例3: videobuf_dma_free

int videobuf_dma_free(struct videobuf_dmabuf *dma)
{
	MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
	BUG_ON(dma->sglen);

	if (dma->pages) {
		int i;
		for (i=0; i < dma->nr_pages; i++)
			page_cache_release(dma->pages[i]);
		kfree(dma->pages);
		dma->pages = NULL;
	}

	vfree(dma->vmalloc);
	dma->vmalloc = NULL;
	dma->varea = NULL;

	if (dma->bus_addr) {
		dma->bus_addr = 0;
	}
	dma->direction = PCI_DMA_NONE;
	return 0;
}

开发者ID:PennPanda，项目名称:linux-repo，代码行数:23，代码来源:videobuf-dma-sg.c

示例4: videobuf_vmalloc_free

void videobuf_vmalloc_free(struct videobuf_buffer *buf)
{
	struct videobuf_vmalloc_memory *mem = buf->priv;

	/*                                                             
                                                                   
                                                     
                                                                   
                     
  */
	if ((buf->memory != V4L2_MEMORY_USERPTR) || buf->baddr)
		return;

	if (!mem)
		return;

	MAGIC_CHECK(mem->magic, MAGIC_VMAL_MEM);

	vfree(mem->vaddr);
	mem->vaddr = NULL;

	return;
}

开发者ID:romanbb，项目名称:android_kernel_lge_d851，代码行数:23，代码来源:videobuf-vmalloc.c

示例5: __videobuf_mmap_free

/* Locking: Caller holds q->vb_lock */
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
	int i;

	if (!q)
		return 0;

	MAGIC_CHECK(q->int_ops->magic, MAGIC_QTYPE_OPS);

	for (i = 0; i < VIDEO_MAX_FRAME; i++)
		if (q->bufs[i] && q->bufs[i]->map)
			return -EBUSY;

	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
		if (NULL == q->bufs[i])
			continue;
		q->ops->buf_release(q, q->bufs[i]);
		kfree(q->bufs[i]);
		q->bufs[i] = NULL;
	}

	return 0;
}

开发者ID:mephistophilis，项目名称:samsung_nowplus_kernel，代码行数:24，代码来源:videobuf-core.c

示例6: sipsess_close_handler

static void sipsess_close_handler(int err, const struct sip_msg *msg,
				  void *arg)
{
	struct call *call = arg;
	char reason[128] = "";

	MAGIC_CHECK(call);

	if (err) {
		info("%s: session closed: %m\n", call->peer_uri, err);

		if (call->not) {
			(void)call_notify_sipfrag(call, 500, "%m", err);
		}
	}
	else if (msg) {

		call->scode = msg->scode;

		(void)re_snprintf(reason, sizeof(reason), "%u %r",
				  msg->scode, &msg->reason);

		info("%s: session closed: %u %r\n",
		     call->peer_uri, msg->scode, &msg->reason);

		if (call->not) {
			(void)call_notify_sipfrag(call, msg->scode,
						  "%r", &msg->reason);
		}
	}
	else {
		info("%s: session closed\n", call->peer_uri);
	}

	call_stream_stop(call);
	call_event_handler(call, CALL_EVENT_CLOSED, reason);
}

开发者ID:sealaunch，项目名称:baresip，代码行数:37，代码来源:call.c

示例7: videobuf_vm_close

static void
videobuf_vm_close(struct vm_area_struct *vma)
{
	struct videobuf_mapping *map = vma->vm_private_data;
	struct videobuf_queue *q = map->q;
	struct videobuf_dma_sg_memory *mem;
	int i;

	dprintk(2,"vm_close %p [count=%d,vma=%08lx-%08lx]\n",map,
		map->count,vma->vm_start,vma->vm_end);

	map->count--;
	if (0 == map->count) {
		dprintk(1,"munmap %p q=%p\n",map,q);
		mutex_lock(&q->vb_lock);
		for (i = 0; i < VIDEO_MAX_FRAME; i++) {
			if (NULL == q->bufs[i])
				continue;
			mem=q->bufs[i]->priv;

			if (!mem)
				continue;

			MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);

			if (q->bufs[i]->map != map)
				continue;
			q->bufs[i]->map   = NULL;
			q->bufs[i]->baddr = 0;
			q->ops->buf_release(q,q->bufs[i]);
		}
		mutex_unlock(&q->vb_lock);
		kfree(map);
	}
	return;
}

开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:36，代码来源:videobuf-dma-sg.c

示例8: evas_gl_new

EAPI Evas_GL *
evas_gl_new(Evas *e)
{
   Evas_GL *evas_gl;

   MAGIC_CHECK(e, Evas, MAGIC_EVAS);
   return NULL;
   MAGIC_CHECK_END();

   evas_gl = calloc(1, sizeof(Evas_GL));
   if (!evas_gl) return NULL;

   evas_gl->magic = MAGIC_EVAS_GL;
   evas_gl->evas = eo_data_ref(e, EVAS_CLASS);

   if (!evas_gl->evas->engine.func->gl_context_create)
     {
        ERR("Evas GL engine not available.");
        free(evas_gl);
        return NULL;
     }

   return evas_gl;
}

开发者ID:jigpu，项目名称:efl，代码行数:24，代码来源:evas_gl.c

示例9: evas_gl_surface_destroy

EAPI void
evas_gl_surface_destroy(Evas_GL *evas_gl, Evas_GL_Surface *surf)
{
   // Magic
   MAGIC_CHECK(evas_gl, Evas_GL, MAGIC_EVAS_GL);
   return;
   MAGIC_CHECK_END();

   if (!surf)
     {
        ERR("Trying to destroy a NULL surface pointer!");
        return;
     }

   // Call Engine's Surface Destroy
   evas_gl->evas->engine.func->gl_surface_destroy(evas_gl->evas->engine.data.output, surf->data);

   // Remove it from the list
   evas_gl->surfaces = eina_list_remove(evas_gl->surfaces, surf);

   // Delete the object
   free(surf);
   surf = NULL;
}

开发者ID:jigpu，项目名称:efl，代码行数:24，代码来源:evas_gl.c

示例10: evas_gl_context_destroy

EAPI void
evas_gl_context_destroy(Evas_GL *evas_gl, Evas_GL_Context *ctx)
{

   MAGIC_CHECK(evas_gl, Evas_GL, MAGIC_EVAS_GL);
   return;
   MAGIC_CHECK_END();

   if (!ctx)
     {
        ERR("Trying to destroy a NULL context pointer!");
        return;
     }

   // Call Engine's destroy
   evas_gl->evas->engine.func->gl_context_destroy(evas_gl->evas->engine.data.output, ctx->data);

   // Remove it from the list
   evas_gl->contexts = eina_list_remove(evas_gl->contexts, ctx);

   // Delete the object
   free(ctx);
   ctx = NULL;
}

开发者ID:jigpu，项目名称:efl，代码行数:24，代码来源:evas_gl.c

示例11: videobuf_queue_is_busy

/* Locking: Only usage in bttv unsafe find way to remove */
int videobuf_queue_is_busy(struct videobuf_queue *q)
{
	int i;

	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);

	if (q->streaming) {
		dprintk(1,"busy: streaming active\n");
		return 1;
	}
	if (q->reading) {
		dprintk(1,"busy: pending read #1\n");
		return 1;
	}
	if (q->read_buf) {
		dprintk(1,"busy: pending read #2\n");
		return 1;
	}
	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
		if (NULL == q->bufs[i])
			continue;
		if (q->bufs[i]->map) {
			dprintk(1,"busy: buffer #%d mapped\n",i);
			return 1;
		}
		if (q->bufs[i]->state == STATE_QUEUED) {
			dprintk(1,"busy: buffer #%d queued\n",i);
			return 1;
		}
		if (q->bufs[i]->state == STATE_ACTIVE) {
			dprintk(1,"busy: buffer #%d avtive\n",i);
			return 1;
		}
	}
	return 0;
}

开发者ID:PennPanda，项目名称:linux-repo，代码行数:37，代码来源:videobuf-core.c

示例12: __videobuf_mmap_free

/* Locking: Caller holds q->lock */
static int __videobuf_mmap_free(struct videobuf_queue *q)
{
	int i;
	int rc;

	if (!q)
		return 0;

	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);

	rc  = CALL(q,mmap_free,q);
	if (rc<0)
		return rc;

	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
		if (NULL == q->bufs[i])
			continue;
		q->ops->buf_release(q,q->bufs[i]);
		kfree(q->bufs[i]);
		q->bufs[i] = NULL;
	}

	return rc;
}

开发者ID:PennPanda，项目名称:linux-repo，代码行数:25，代码来源:videobuf-core.c

示例13: __videobuf_iolock

static int __videobuf_iolock(struct videobuf_queue *q,
			     struct videobuf_buffer *vb,
			     struct v4l2_framebuffer *fbuf)
{
	struct videobuf_vmalloc_memory *mem = vb->priv;
	int pages;

	BUG_ON(!mem);

	MAGIC_CHECK(mem->magic, MAGIC_VMAL_MEM);

	switch (vb->memory) {
	case V4L2_MEMORY_MMAP:
		dprintk(1, "%s memory method MMAP\n", __func__);

		/* All handling should be done by __videobuf_mmap_mapper() */
		if (!mem->vaddr) {
			printk(KERN_ERR "memory is not alloced/mmapped.\n");
			return -EINVAL;
		}
		break;
	case V4L2_MEMORY_USERPTR:
		pages = PAGE_ALIGN(vb->size);

		dprintk(1, "%s memory method USERPTR\n", __func__);

		if (vb->baddr) {
			printk(KERN_ERR "USERPTR is currently not supported\n");
			return -EINVAL;
		}

		/* The only USERPTR currently supported is the one needed for
		 * read() method.
		 */

		mem->vaddr = vmalloc_user(pages);
		if (!mem->vaddr) {
			printk(KERN_ERR "vmalloc (%d pages) failed\n", pages);
			return -ENOMEM;
		}
		dprintk(1, "vmalloc is at addr %p (%d pages)\n",
			mem->vaddr, pages);

#if 0
		int rc;
		/* Kernel userptr is used also by read() method. In this case,
		   there's no need to remap, since data will be copied to user
		 */
		if (!vb->baddr)
			return 0;

		/* FIXME: to properly support USERPTR, remap should occur.
		   The code below won't work, since mem->vma = NULL
		 */
		/* Try to remap memory */
		rc = remap_vmalloc_range(mem->vma, (void *)vb->baddr, 0);
		if (rc < 0) {
			printk(KERN_ERR "mmap: remap failed with error %d", rc);
			return -ENOMEM;
		}
#endif

		break;
	case V4L2_MEMORY_OVERLAY:
	default:
		dprintk(1, "%s memory method OVERLAY/unknown\n", __func__);

		/* Currently, doesn't support V4L2_MEMORY_OVERLAY */
		printk(KERN_ERR "Memory method currently unsupported.\n");
		return -EINVAL;
	}

	return 0;
}

开发者ID:CSCLOG，项目名称:beaglebone，代码行数:74，代码来源:videobuf-vmalloc.c

示例14: __videobuf_iolock

static int __videobuf_iolock(struct videobuf_queue *q,
			     struct videobuf_buffer *vb,
			     struct v4l2_framebuffer *fbuf)
{
	struct videobuf_vmalloc_memory *mem = vb->priv;
	int pages;

	BUG_ON(!mem);

	MAGIC_CHECK(mem->magic, MAGIC_VMAL_MEM);

	switch (vb->memory) {
	case V4L2_MEMORY_MMAP:
		dprintk(1, "%s memory method MMAP\n", __func__);

		
		if (!mem->vaddr) {
			printk(KERN_ERR "memory is not alloced/mmapped.\n");
			return -EINVAL;
		}
		break;
	case V4L2_MEMORY_USERPTR:
		pages = PAGE_ALIGN(vb->size);

		dprintk(1, "%s memory method USERPTR\n", __func__);

		if (vb->baddr) {
			printk(KERN_ERR "USERPTR is currently not supported\n");
			return -EINVAL;
		}


		mem->vaddr = vmalloc_user(pages);
		if (!mem->vaddr) {
			printk(KERN_ERR "vmalloc (%d pages) failed\n", pages);
			return -ENOMEM;
		}
		dprintk(1, "vmalloc is at addr %p (%d pages)\n",
			mem->vaddr, pages);

#if 0
		int rc;
		if (!vb->baddr)
			return 0;

		
		rc = remap_vmalloc_range(mem->vma, (void *)vb->baddr, 0);
		if (rc < 0) {
			printk(KERN_ERR "mmap: remap failed with error %d", rc);
			return -ENOMEM;
		}
#endif

		break;
	case V4L2_MEMORY_OVERLAY:
	default:
		dprintk(1, "%s memory method OVERLAY/unknown\n", __func__);

		
		printk(KERN_ERR "Memory method currently unsupported.\n");
		return -EINVAL;
	}

	return 0;
}

开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:65，代码来源:videobuf-vmalloc.c

示例15: call_event_handler

static void call_event_handler(struct call *call, enum call_event ev,
			       const char *str, void *arg)
{
	struct ua *ua = arg;
	const char *peeruri;
	struct call *call2 = NULL;
	int err;

	MAGIC_CHECK(ua);

	peeruri = call_peeruri(call);

	/* stop any ringtones */
	ua->play = mem_deref(ua->play);

	switch (ev) {

	case CALL_EVENT_INCOMING:

		if (contact_block_access(peeruri)) {

			info("ua: blocked access: \"%s\"\n", peeruri);

			ua_event(ua, UA_EVENT_CALL_CLOSED, call, str);
			mem_deref(call);
			break;
		}

		switch (ua->acc->answermode) {

		case ANSWERMODE_EARLY:
			(void)call_progress(call);
			break;

		case ANSWERMODE_AUTO:
			(void)call_answer(call, 200);
			break;

		case ANSWERMODE_MANUAL:
		default:
			if (list_count(&ua->calls) > 1) {
				(void)play_file(&ua->play,
						    "callwaiting.wav", 3);
			}
			else {
				/* Alert user */
				(void)play_file(&ua->play, "ring.wav", -1);
			}

			ua_event(ua, UA_EVENT_CALL_INCOMING, call, peeruri);
			break;
		}
		break;

	case CALL_EVENT_RINGING:
		(void)play_file(&ua->play, "ringback.wav", -1);

		ua_event(ua, UA_EVENT_CALL_RINGING, call, peeruri);
		break;

	case CALL_EVENT_PROGRESS:
		ua_printf(ua, "Call in-progress: %s\n", peeruri);
		ua_event(ua, UA_EVENT_CALL_PROGRESS, call, peeruri);
		break;

	case CALL_EVENT_ESTABLISHED:
		ua_printf(ua, "Call established: %s\n", peeruri);
		ua_event(ua, UA_EVENT_CALL_ESTABLISHED, call, peeruri);
		break;

	case CALL_EVENT_CLOSED:
		if (call_scode(call)) {
			const char *tone;
			tone = translate_errorcode(call_scode(call));
			if (tone)
				(void)play_file(&ua->play, tone, 1);
		}
		ua_event(ua, UA_EVENT_CALL_CLOSED, call, str);
		mem_deref(call);
		break;

	case CALL_EVENT_TRANSFER:

		/*
		 * Create a new call to transfer target.
		 *
		 * NOTE: we will automatically connect a new call to the
		 *       transfer target
		 */

		ua_printf(ua, "transferring call to %s\n", str);

		err = ua_call_alloc(&call2, ua, VIDMODE_ON, NULL, call,
				    call_localuri(call));
		if (!err) {
			struct pl pl;

			pl_set_str(&pl, str);

			err = call_connect(call2, &pl);
//.........这里部分代码省略.........

开发者ID:pasichnichenko，项目名称:baresip，代码行数:101，代码来源:ua.c

示例16: videobuf_read_one

ssize_t videobuf_read_one(struct videobuf_queue *q,
			  char __user *data, size_t count, loff_t *ppos,
			  int nonblocking)
{
	enum v4l2_field field;
	unsigned long flags=0;
	unsigned size, nbufs;
	int retval;

	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);

	mutex_lock(&q->lock);

	nbufs = 1; size = 0;
	q->ops->buf_setup(q,&nbufs,&size);

	if (NULL == q->read_buf  &&
	    count >= size        &&
	    !nonblocking) {
		retval = videobuf_read_zerocopy(q,data,count,ppos);
		if (retval >= 0  ||  retval == -EIO)
			/* ok, all done */
			goto done;
		/* fallback to kernel bounce buffer on failures */
	}

	if (NULL == q->read_buf) {
		/* need to capture a new frame */
		retval = -ENOMEM;
		q->read_buf = videobuf_alloc(q);

		dprintk(1,"video alloc=0x%p\n", q->read_buf);
		if (NULL == q->read_buf)
			goto done;
		q->read_buf->memory = V4L2_MEMORY_USERPTR;
		q->read_buf->bsize = count; /* preferred size */
		field = videobuf_next_field(q);
		retval = q->ops->buf_prepare(q,q->read_buf,field);

		if (0 != retval) {
			kfree (q->read_buf);
			q->read_buf = NULL;
			goto done;
		}
		if (q->irqlock)
			spin_lock_irqsave(q->irqlock,flags);

		q->ops->buf_queue(q,q->read_buf);
		if (q->irqlock)
			spin_unlock_irqrestore(q->irqlock,flags);
		q->read_off = 0;
	}

	/* wait until capture is done */
	retval = videobuf_waiton(q->read_buf, nonblocking, 1);
	if (0 != retval)
		goto done;

	CALL(q,sync,q,q->read_buf);

	if (STATE_ERROR == q->read_buf->state) {
		/* catch I/O errors */
		q->ops->buf_release(q,q->read_buf);
		kfree(q->read_buf);
		q->read_buf = NULL;
		retval = -EIO;
		goto done;
	}

	/* Copy to userspace */
	retval=CALL(q,video_copy_to_user,q,data,count,nonblocking);
	if (retval<0)
		goto done;

	q->read_off += retval;
	if (q->read_off == q->read_buf->size) {
		/* all data copied, cleanup */
		q->ops->buf_release(q,q->read_buf);
		kfree(q->read_buf);
		q->read_buf = NULL;
	}

 done:
	mutex_unlock(&q->lock);
	return retval;
}

开发者ID:PennPanda，项目名称:linux-repo，代码行数:86，代码来源:videobuf-core.c

示例17: videobuf_qbuf

int videobuf_qbuf(struct videobuf_queue *q, struct v4l2_buffer *b)
{
	struct videobuf_buffer *buf;
	enum v4l2_field field;
	unsigned long flags = 0;
	int retval;

	MAGIC_CHECK(q->int_ops->magic, MAGIC_QTYPE_OPS);

	if (b->memory == V4L2_MEMORY_MMAP)
		down_read(&current->mm->mmap_sem);

	videobuf_queue_lock(q);
	retval = -EBUSY;
	if (q->reading) {
		dprintk(1, "qbuf: Reading running...\n");
		goto done;
	}
	retval = -EINVAL;
	if (b->type != q->type) {
		dprintk(1, "qbuf: Wrong type.\n");
		goto done;
	}
	if (b->index >= VIDEO_MAX_FRAME) {
		dprintk(1, "qbuf: index out of range.\n");
		goto done;
	}
	buf = q->bufs[b->index];
	if (NULL == buf) {
		dprintk(1, "qbuf: buffer is null.\n");
		goto done;
	}
	MAGIC_CHECK(buf->magic, MAGIC_BUFFER);
	if (buf->memory != b->memory) {
		dprintk(1, "qbuf: memory type is wrong.\n");
		goto done;
	}
	if (buf->state != VIDEOBUF_NEEDS_INIT && buf->state != VIDEOBUF_IDLE) {
		dprintk(1, "qbuf: buffer is already queued or active.\n");
		goto done;
	}

	switch (b->memory) {
	case V4L2_MEMORY_MMAP:
		if (0 == buf->baddr) {
			dprintk(1, "qbuf: mmap requested but buffer addr is zero!\n");
			goto done;
		}
		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT
		    || q->type == V4L2_BUF_TYPE_VBI_OUTPUT
		    || q->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT
		    || q->type == V4L2_BUF_TYPE_SDR_OUTPUT) {
			buf->size = b->bytesused;
			buf->field = b->field;
			buf->ts = v4l2_timeval_to_ns(&b->timestamp);
		}
		break;
	case V4L2_MEMORY_USERPTR:
		if (b->length < buf->bsize) {
			dprintk(1, "qbuf: buffer length is not enough\n");
			goto done;
		}
		if (VIDEOBUF_NEEDS_INIT != buf->state &&
		    buf->baddr != b->m.userptr)
			q->ops->buf_release(q, buf);
		buf->baddr = b->m.userptr;
		break;
	case V4L2_MEMORY_OVERLAY:
		buf->boff = b->m.offset;
		break;
	default:
		dprintk(1, "qbuf: wrong memory type\n");
		goto done;
	}

	dprintk(1, "qbuf: requesting next field\n");
	field = videobuf_next_field(q);
	retval = q->ops->buf_prepare(q, buf, field);
	if (0 != retval) {
		dprintk(1, "qbuf: buffer_prepare returned %d\n", retval);
		goto done;
	}

	list_add_tail(&buf->stream, &q->stream);
	if (q->streaming) {
		spin_lock_irqsave(q->irqlock, flags);
		q->ops->buf_queue(q, buf);
		spin_unlock_irqrestore(q->irqlock, flags);
	}
	dprintk(1, "qbuf: succeeded\n");
	retval = 0;
	wake_up_interruptible_sync(&q->wait);

done:
	videobuf_queue_unlock(q);

	if (b->memory == V4L2_MEMORY_MMAP)
		up_read(&current->mm->mmap_sem);

	return retval;
//.........这里部分代码省略.........

开发者ID:Anjali05，项目名称:linux，代码行数:101，代码来源:videobuf-core.c

示例18: __videobuf_mmap_mapper

static int __videobuf_mmap_mapper(struct videobuf_queue *q,
				  struct videobuf_buffer *buf,
				  struct vm_area_struct *vma)
{
	struct videobuf_vmalloc_memory *mem;
	struct videobuf_mapping *map;
	int retval, pages;

	dprintk(1, "%s\n", __func__);

	/* create mapping + update buffer list */
	map = kzalloc(sizeof(struct videobuf_mapping), GFP_KERNEL);
	if (NULL == map)
		return -ENOMEM;

	buf->map = map;
	map->q     = q;

	buf->baddr = vma->vm_start;

	mem = buf->priv;
	BUG_ON(!mem);
	MAGIC_CHECK(mem->magic, MAGIC_VMAL_MEM);

	pages = PAGE_ALIGN(vma->vm_end - vma->vm_start);
	mem->vaddr = vmalloc_user(pages);
	if (!mem->vaddr) {
		printk(KERN_ERR "vmalloc (%d pages) failed\n", pages);
		goto error;
	}
	dprintk(1, "vmalloc is at addr %p (%d pages)\n", mem->vaddr, pages);

	/* Try to remap memory */
	retval = remap_vmalloc_range(vma, mem->vaddr, 0);
	if (retval < 0) {
		printk(KERN_ERR "mmap: remap failed with error %d. ", retval);
		vfree(mem->vaddr);
		goto error;
	}

	vma->vm_ops          = &videobuf_vm_ops;
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
	vma->vm_flags       |= VM_DONTEXPAND | VM_RESERVED;
#else
	vma->vm_flags       |= VM_DONTEXPAND | VM_DONTDUMP;
#endif
	vma->vm_private_data = map;

	dprintk(1, "mmap %p: q=%p %08lx-%08lx (%lx) pgoff %08lx buf %d\n",
		map, q, vma->vm_start, vma->vm_end,
		(long int)buf->bsize,
		vma->vm_pgoff, buf->i);

	videobuf_vm_open(vma);

	return 0;

error:
	mem = NULL;
	kfree(map);
	return -ENOMEM;
}

开发者ID:beam，项目名称:linux-tbs-drivers，代码行数:62，代码来源:videobuf-vmalloc.c

示例19: evas_map_coords_get

Eina_Bool
evas_map_coords_get(const Evas_Map *m, Evas_Coord x, Evas_Coord y,
                    Evas_Coord *mx, Evas_Coord *my, int grab)
{
   MAGIC_CHECK(m, Evas_Map, MAGIC_MAP);
   return EINA_FALSE;
   MAGIC_CHECK_END();

   int i, j, edges, edge[m->count][2], douv;
   Evas_Coord xe[2];
   double u[2] = { 0.0, 0.0 };
   double v[2] = { 0.0, 0.0 };

   if (m->count < 4) return 0;
   // FIXME need to handle grab mode and extrapolte coords outside
   // map
   if (grab)
     {
        Evas_Coord ymin, ymax;

        ymin = m->points[0].y;
        ymax = m->points[0].y;
        for (i = 1; i < m->count; i++)
          {
             if (m->points[i].y < ymin) ymin = m->points[i].y;
             else if (m->points[i].y > ymax) ymax = m->points[i].y;
          }
        if (y <= ymin) y = ymin + 1;
        if (y >= ymax) y = ymax - 1;
     }
   edges = 0;
   for (i = 0; i < m->count; i++)
     {
        j = (i + 1) % m->count;
        if ((m->points[i].y <= y) && (m->points[j].y > y))
          {
             edge[edges][0] = i;
             edge[edges][1] = j;
             edges++;
          }
        else if ((m->points[j].y <= y) && (m->points[i].y > y))
          {
             edge[edges][0] = j;
             edge[edges][1] = i;
             edges++;
          }
     }
   douv = 0;
   if ((mx) || (my)) douv = 1;
   for (i = 0; i < (edges - 1); i+= 2)
     {
        Evas_Coord yp, yd;

        j = i + 1;
        yd = m->points[edge[i][1]].y - m->points[edge[i][0]].y;
        if (yd > 0)
          {
             yp = y - m->points[edge[i][0]].y;
             xe[0] = m->points[edge[i][1]].x - m->points[edge[i][0]].x;
             xe[0] = m->points[edge[i][0]].x + ((xe[0] * yp) / yd);
             if (douv)
               {
                  u[0] = m->points[edge[i][1]].u - m->points[edge[i][0]].u;
                  u[0] = m->points[edge[i][0]].u + ((u[0] * yp) / yd);
                  v[0] = m->points[edge[i][1]].v - m->points[edge[i][0]].v;
                  v[0] = m->points[edge[i][0]].v + ((v[0] * yp) / yd);
               }
          }
        else
          {
             xe[0] = m->points[edge[i][0]].x;
             if (douv)
               {
                  u[0] = m->points[edge[i][0]].u;
                  v[0] = m->points[edge[i][0]].v;
               }
          }
        yd = m->points[edge[j][1]].y - m->points[edge[j][0]].y;
        if (yd > 0)
          {
             yp = y - m->points[edge[j][0]].y;
             xe[1] = m->points[edge[j][1]].x - m->points[edge[j][0]].x;
             xe[1] = m->points[edge[j][0]].x + ((xe[1] * yp) / yd);
             if (douv)
               {
                  u[1] = m->points[edge[j][1]].u - m->points[edge[j][0]].u;
                  u[1] = m->points[edge[j][0]].u + ((u[1] * yp) / yd);
                  v[1] = m->points[edge[j][1]].v - m->points[edge[j][0]].v;
                  v[1] = m->points[edge[j][0]].v + ((v[1] * yp) / yd);
               }
          }
        else
          {
             xe[1] = m->points[edge[j][0]].x;
             if (douv)
               {
                  u[1] = m->points[edge[j][0]].u;
                  v[1] = m->points[edge[j][0]].v;
               }
          }
//.........这里部分代码省略.........

开发者ID:antognolli，项目名称:Evas，代码行数:101，代码来源:evas_map.c

示例20: evas_object_gradient_type_set

/**
 * Sets the geometric type displayed by the given gradient object.
 * @param   obj  The given gradient object.
 * @param   name Name of the geometric type that the gradient is to be drawn as.
 * @param   params List of allowable params that the given gradient type allows.
 * Can be NULL.
 */
EAPI void
evas_object_gradient_type_set(Evas_Object *obj, const char *name, const char *params)
{
   Evas_Object_Gradient *o;

   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
   return;
   MAGIC_CHECK_END();
   o = (Evas_Object_Gradient *)(obj->object_data);
   MAGIC_CHECK(o, Evas_Object_Gradient, MAGIC_OBJ_GRADIENT);
   return;
   MAGIC_CHECK_END();
   if (!name || !*name)
     {
	name = "linear";
	params = NULL;
     }
   if (params && !*params)
	params = NULL;
   if ((o->cur.type.name) && (!strcmp(o->cur.type.name, name)))
     {
	if ((!o->cur.type.params) && (!params))
	  return;
	if ((o->cur.type.params) && (params) && (!strcmp(o->cur.type.params, params)))
	  return;
	if (o->cur.type.params)
	  {
	    if (o->prev.type.params == o->cur.type.params)
		o->prev.type.params = strdup(o->cur.type.params);
	    free(o->cur.type.params);
	    o->cur.type.params = NULL;
	  }
	if (params)
	  o->cur.type.params = strdup(params);
	o->changed = 1;
	o->gradient_changed = 1;
	o->type_changed = 1;
	evas_object_change(obj);
	return;
     }

   if (o->cur.type.name)
     {
	if (o->prev.type.name == o->cur.type.name)
	  o->prev.type.name = strdup(o->cur.type.name);
	free(o->cur.type.name);
	o->cur.type.name = NULL;
     }
   o->cur.type.name = strdup(name);

   if (o->cur.type.params)
     {
	if (o->prev.type.params == o->cur.type.params)
	  o->prev.type.params = strdup(o->cur.type.params);
	free(o->cur.type.params);
	o->cur.type.params = NULL;
     }
   if (params)
	o->cur.type.params = strdup(params);
   o->changed = 1;
   o->gradient_changed = 1;
   o->type_changed = 1;
   evas_object_change(obj);
}

开发者ID:OpenInkpot-archive，项目名称:iplinux-evas，代码行数:71，代码来源:evas_object_gradient.c

注：本文中的MAGIC_CHECK函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ MAGIC_CHECK函数代码示例

示例1: videobuf_vmalloc_free

示例2: __videobuf_iolock

示例3: videobuf_dma_free

示例4: videobuf_vmalloc_free

示例5: __videobuf_mmap_free

示例6: sipsess_close_handler

示例7: videobuf_vm_close

示例8: evas_gl_new

示例9: evas_gl_surface_destroy

示例10: evas_gl_context_destroy

示例11: videobuf_queue_is_busy

示例12: __videobuf_mmap_free

示例13: __videobuf_iolock

示例14: __videobuf_iolock

示例15: call_event_handler

示例16: videobuf_read_one

示例17: videobuf_qbuf

示例18: __videobuf_mmap_mapper

示例19: evas_map_coords_get

示例20: evas_object_gradient_type_set

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