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Add fd to the data

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Add the fd to the SpaData so that we can noth use the fd and the mmapped
memory when we want instead of needing to mmap again in the plugin.
various cleanups
This commit is contained in:
Wim Taymans 2016-10-04 19:37:44 +02:00
parent b8f693ceea
commit 06765a2dea
15 changed files with 158 additions and 179 deletions
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22
spa/include/spa/buffer.h
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@ -46,8 +46,8 @@ typedef enum {
* SpaDataType:
* @SPA_DATA_TYPE_INVALID: invalid data, should be ignored
* @SPA_DATA_TYPE_MEMPTR: data points to CPU accessible memory
* @SPA_DATA_TYPE_MEMFD: data is an int file descriptor, use SPA_PTR_TO_INT
* @SPA_DATA_TYPE_DMABUF: data is an int file descriptor, use SPA_PTR_TO_INT
* @SPA_DATA_TYPE_MEMFD: fd is memfd, data can be mmapped
* @SPA_DATA_TYPE_DMABUF: fd is dmabuf, data can be mmapped
* @SPA_DATA_TYPE_ID: data is an id use SPA_PTR_TO_INT32. The definition of
* the ID is conveyed in some other way
*/
@ -136,15 +136,19 @@ typedef struct {
/**
* SpaData:
* @type: memory type
* @flags: memory flags
* @data: pointer to memory
* @maxsize: size of @data
* @fd: file descriptor
* @maxsize: maximum size of the memory
* @offset: offset in @data
* @size: valid size of @data
* @stride: stride of data if applicable
*/
typedef struct {
SpaDataType type;
int flags;
void *data;
int fd;
size_t maxsize;
off_t offset;
size_t size;
@ -167,13 +171,21 @@ struct _SpaBuffer {
SpaData *datas;
};
inline void *
spa_buffer_find_meta (SpaBuffer *b, SpaMetaType type)
{
unsigned int i;
for (i = 0; i < b->n_metas; i++)
if (b->metas[i].type == type)
return b->metas[i].data;
return NULL;
}
size_t spa_buffer_get_size (const SpaBuffer *buffer);
size_t spa_buffer_serialize (void *dest, const SpaBuffer *buffer);
SpaBuffer * spa_buffer_deserialize (void *src, off_t offset);
size_t spa_meta_type_get_size (SpaMetaType type);
#ifdef __cplusplus