pb_bufmgr_alt.c File Reference

Allocate buffers from two alternative buffer providers. More...

Include dependency graph for pb_bufmgr_alt.c:

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Data Structures
struct	pb_alt_manager
Functions
static struct pb_alt_manager *	pb_alt_manager (struct pb_manager *mgr)
static struct pb_buffer *	pb_alt_manager_create_buffer (struct pb_manager *_mgr, size_t size, const struct pb_desc *desc)
static void	pb_alt_manager_flush (struct pb_manager *_mgr)
static void	pb_alt_manager_destroy (struct pb_manager *mgr)
struct pb_manager *	pb_alt_manager_create (struct pb_manager *provider1, struct pb_manager *provider2)

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Detailed Description

Allocate buffers from two alternative buffer providers.

Author:

Jose Fonseca <jrfonseca@tungstengraphics.com>

Definition in file pb_bufmgr_alt.c.

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Function Documentation

static struct pb_alt_manager* pb_alt_manager

(

struct pb_manager *

mgr

)

[static, read]

Definition at line 54 of file pb_bufmgr_alt.c.

References assert.

{
   assert(mgr);
   return (struct pb_alt_manager *)mgr;
}

struct pb_manager* pb_alt_manager_create	(	struct pb_manager *	provider1,
		struct pb_manager *	provider2
	)			[read]

Definition at line 101 of file pb_bufmgr_alt.c.

References pb_alt_manager::base, CALLOC_STRUCT, pb_manager::create_buffer, pb_manager::destroy, pb_manager::flush, pb_alt_manager_create_buffer(), pb_alt_manager_destroy(), pb_alt_manager_flush(), pb_alt_manager::provider1, and pb_alt_manager::provider2.

{
   struct pb_alt_manager *mgr;

   if(!provider1 || !provider2)
      return NULL;
   
   mgr = CALLOC_STRUCT(pb_alt_manager);
   if (!mgr)
      return NULL;

   mgr->base.destroy = pb_alt_manager_destroy;
   mgr->base.create_buffer = pb_alt_manager_create_buffer;
   mgr->base.flush = pb_alt_manager_flush;
   mgr->provider1 = provider1;
   mgr->provider2 = provider2;
      
   return &mgr->base;
}

static struct pb_buffer* pb_alt_manager_create_buffer	(	struct pb_manager *	_mgr,
		size_t	size,
		const struct pb_desc *	desc
	)			[static, read]

Definition at line 62 of file pb_bufmgr_alt.c.

References pb_manager::create_buffer, pb_alt_manager(), pb_alt_manager::provider1, and pb_alt_manager::provider2.

{
   struct pb_alt_manager *mgr = pb_alt_manager(_mgr);
   struct pb_buffer *buf;
   
   buf = mgr->provider1->create_buffer(mgr->provider1, size, desc);
   if(buf)
      return buf;
   
   buf = mgr->provider2->create_buffer(mgr->provider2, size, desc);
   return buf;
}

static void pb_alt_manager_destroy

(

struct pb_manager *

mgr

)

[static]

Definition at line 94 of file pb_bufmgr_alt.c.

References FREE.

{
   FREE(mgr);
}

static void pb_alt_manager_flush

(

struct pb_manager *

_mgr

)

[static]

Definition at line 79 of file pb_bufmgr_alt.c.

References assert, pb_manager::flush, pb_alt_manager(), pb_alt_manager::provider1, and pb_alt_manager::provider2.

{
   struct pb_alt_manager *mgr = pb_alt_manager(_mgr);
   
   assert(mgr->provider1->flush);
   if(mgr->provider1->flush)
      mgr->provider1->flush(mgr->provider1);
   
   assert(mgr->provider2->flush);
   if(mgr->provider2->flush)
      mgr->provider2->flush(mgr->provider2);
}

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