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link: improve allocation

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Make a structure to track allocation of buffers on ports.
Handle more allocation failures.
Update port status immediately when clearing format
This commit is contained in:
Wim Taymans 2018-02-26 16:59:28 +01:00
parent b8eccc3648
commit 13fcaf74e6
3 changed files with 122 additions and 101 deletions
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144
src/pipewire/link.c
View file

@ -238,7 +238,7 @@ static int do_negotiate(struct pw_link *this, uint32_t in_state, uint32_t out_st
return res;
}
static struct spa_pod *find_param(struct spa_pod **params, int n_params, uint32_t type)
static struct spa_pod *find_param(struct spa_pod **params, uint32_t n_params, uint32_t type)
{
uint32_t i;
@ -312,15 +312,16 @@ static struct spa_pod *find_param(struct spa_pod **params, int n_params, uint32_
* The shared memory block should not contain any types or structure,
* just the actual metadata contents.
*/
static struct spa_buffer **alloc_buffers(struct pw_link *this,
uint32_t n_buffers,
uint32_t n_params,
struct spa_pod **params,
uint32_t n_datas,
size_t *data_sizes,
ssize_t *data_strides,
struct pw_memblock **mem)
static int alloc_buffers(struct pw_link *this,
uint32_t n_buffers,
uint32_t n_params,
struct spa_pod **params,
uint32_t n_datas,
size_t *data_sizes,
ssize_t *data_strides,
struct allocation *allocation)
{
int res;
struct spa_buffer **buffers, *bp;
uint32_t i;
size_t skel_size, data_size, meta_size;
@ -369,9 +370,10 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
/* pointer to buffer structures */
bp = SPA_MEMBER(buffers, n_buffers * sizeof(struct spa_buffer *), struct spa_buffer);
pw_memblock_alloc(PW_MEMBLOCK_FLAG_WITH_FD |
PW_MEMBLOCK_FLAG_MAP_READWRITE |
PW_MEMBLOCK_FLAG_SEAL, n_buffers * data_size, &m);
if ((res = pw_memblock_alloc(PW_MEMBLOCK_FLAG_WITH_FD |
PW_MEMBLOCK_FLAG_MAP_READWRITE |
PW_MEMBLOCK_FLAG_SEAL, n_buffers * data_size, &m)) < 0)
return res;
for (i = 0; i < n_buffers; i++) {
int j;
@ -422,8 +424,11 @@ static struct spa_buffer **alloc_buffers(struct pw_link *this,
}
}
}
*mem = m;
return buffers;
allocation->mem = m;
allocation->n_buffers = n_buffers;
allocation->buffers = buffers;
return 0;
}
static int
@ -552,27 +557,25 @@ static int do_allocation(struct pw_link *this, uint32_t in_state, uint32_t out_s
spa_debug_port_info(oinfo);
spa_debug_port_info(iinfo);
}
if (this->buffers == NULL && output->n_buffers) {
if (this->allocation.buffers == NULL && output->allocation.n_buffers) {
out_flags = 0;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
this->n_buffers = output->n_buffers;
this->buffers = output->buffers;
this->buffer_owner = output;
pw_log_debug("link %p: reusing %d output buffers %p", this, this->n_buffers,
this->buffers);
} else if (this->buffers == NULL && input->n_buffers && input->mix == NULL) {
this->allocation = output->allocation;
this->allocation_owner = output;
pw_log_debug("link %p: reusing %d output buffers %p", this,
this->allocation.n_buffers, this->allocation.buffers);
} else if (this->allocation.buffers == NULL && input->allocation.n_buffers && input->mix == NULL) {
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = 0;
this->n_buffers = input->n_buffers;
this->buffers = input->buffers;
this->buffer_owner = input;
pw_log_debug("link %p: reusing %d input buffers %p", this, this->n_buffers,
this->buffers);
} else if (this->buffers == NULL) {
this->allocation = input->allocation;
this->allocation_owner = input;
pw_log_debug("link %p: reusing %d input buffers %p", this,
this->allocation.n_buffers, this->allocation.buffers);
} else if (this->allocation.buffers == NULL) {
struct spa_pod **params, *param;
uint8_t buffer[4096];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
int i, offset, n_params;
uint32_t i, offset, n_params;
uint32_t max_buffers;
size_t minsize = 1024, stride = 0;
size_t data_sizes[1];
@ -625,52 +628,62 @@ static int do_allocation(struct pw_link *this, uint32_t in_state, uint32_t out_s
data_sizes[0] = minsize;
data_strides[0] = stride;
this->buffer_owner = this;
this->n_buffers = max_buffers;
this->buffers = alloc_buffers(this,
this->n_buffers,
n_params,
params,
1,
data_sizes, data_strides,
&this->buffer_mem);
if ((res = alloc_buffers(this,
max_buffers,
n_params,
params,
1,
data_sizes, data_strides,
&this->allocation)) < 0) {
asprintf(&error, "error alloc buffers: %d", res);
goto error;
}
this->allocation_owner = this;
pw_log_debug("link %p: allocating %d buffers %p %zd %zd", this,
this->n_buffers, this->buffers, minsize, stride);
this->allocation.n_buffers, this->allocation.buffers, minsize, stride);
if (out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = pw_port_alloc_buffers(output,
params, n_params,
this->buffers, &this->n_buffers)) < 0) {
this->allocation.buffers,
&this->allocation.n_buffers)) < 0) {
asprintf(&error, "error alloc output buffers: %d", res);
goto error;
}
if (SPA_RESULT_IS_ASYNC(res))
pw_work_queue_add(impl->work, output->node, res, complete_paused, output);
output->buffer_mem = this->buffer_mem;
this->buffer_owner = output;
output->allocation = this->allocation;
this->allocation_owner = output;
pw_log_debug("link %p: allocated %d buffers %p from output port", this,
this->n_buffers, this->buffers);
this->allocation.n_buffers, this->allocation.buffers);
} else if (in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = pw_port_alloc_buffers(input,
params, n_params,
this->buffers, &this->n_buffers)) < 0) {
this->allocation.buffers,
&this->allocation.n_buffers)) < 0) {
asprintf(&error, "error alloc input buffers: %d", res);
goto error;
}
if (SPA_RESULT_IS_ASYNC(res))
pw_work_queue_add(impl->work, input->node, res, complete_paused, input);
input->buffer_mem = this->buffer_mem;
this->buffer_owner = input;
input->allocation = this->allocation;
this->allocation_owner = input;
pw_log_debug("link %p: allocated %d buffers %p from input port", this,
this->n_buffers, this->buffers);
this->allocation.n_buffers, this->allocation.buffers);
}
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
pw_log_debug("link %p: using %d buffers %p on input port", this,
this->n_buffers, this->buffers);
if ((res = pw_port_use_buffers(input, this->buffers, this->n_buffers)) < 0) {
this->allocation.n_buffers, this->allocation.buffers);
if ((res = pw_port_use_buffers(input,
this->allocation.buffers,
this->allocation.n_buffers)) < 0) {
asprintf(&error, "error use input buffers: %d", res);
goto error;
}
@ -678,17 +691,19 @@ static int do_allocation(struct pw_link *this, uint32_t in_state, uint32_t out_s
pw_work_queue_add(impl->work, input->node, res, complete_paused, input);
} else if (out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
pw_log_debug("link %p: using %d buffers %p on output port", this,
this->n_buffers, this->buffers);
if ((res = pw_port_use_buffers(output, this->buffers, this->n_buffers)) < 0) {
this->allocation.n_buffers, this->allocation.buffers);
if ((res = pw_port_use_buffers(output,
this->allocation.buffers,
this->allocation.n_buffers)) < 0) {
asprintf(&error, "error use output buffers: %d", res);
goto error;
}
if (SPA_RESULT_IS_ASYNC(res))
pw_work_queue_add(impl->work, output->node, res, complete_paused, output);
output->buffer_mem = this->buffer_mem;
output->allocation = this->allocation;
output->allocated = false;
this->buffer_owner = output;
this->allocation_owner = output;
} else {
asprintf(&error, "no common buffer alloc found");
goto error;
@ -697,11 +712,9 @@ static int do_allocation(struct pw_link *this, uint32_t in_state, uint32_t out_s
return 0;
error:
output->buffers = NULL;
output->n_buffers = 0;
drop_allocation(&output->allocation);
output->allocated = false;
input->buffers = NULL;
input->n_buffers = 0;
drop_allocation(&input->allocation);
input->allocated = false;
pw_link_update_state(this, PW_LINK_STATE_ERROR, error);
return res;
@ -767,7 +780,7 @@ static int do_start(struct pw_link *this, uint32_t in_state, uint32_t out_state)
static int check_states(struct pw_link *this, void *user_data, int res)
{
struct impl *impl = SPA_CONTAINER_OF(this, struct impl, this);
uint32_t in_state, out_state;
int in_state, out_state;
struct pw_port *input, *output;
if (this->state == PW_LINK_STATE_ERROR)
@ -840,7 +853,7 @@ output_node_async_complete(void *data, uint32_t seq, int res)
static void clear_port_buffers(struct pw_link *link, struct pw_port *port)
{
if (spa_list_is_empty(&port->links) && link->buffer_owner != port)
if (spa_list_is_empty(&port->links) && link->allocation_owner != port)
pw_port_use_buffers(port, NULL, 0);
}
@ -867,8 +880,8 @@ static void input_remove(struct pw_link *this, struct pw_port *port)
spa_list_remove(&this->input_link);
spa_hook_list_call(&this->input->listener_list, struct pw_port_events, link_removed, this);
this->input = NULL;
clear_port_buffers(this, port);
this->input = NULL;
}
static int
@ -894,8 +907,8 @@ static void output_remove(struct pw_link *this, struct pw_port *port)
spa_list_remove(&this->output_link);
spa_hook_list_call(&this->output->listener_list, struct pw_port_events, link_removed, this);
this->output = NULL;
clear_port_buffers(this, port);
this->output = NULL;
}
static void on_port_destroy(struct pw_link *this, struct pw_port *port)
@ -1138,8 +1151,8 @@ struct pw_link *pw_link_new(struct pw_core *core,
if (output_node->clock)
input_node->clock = output_node->clock;
pw_log_debug("link %p: output node %p clock %p, live %d", this, output_node, output_node->clock,
output_node->live);
pw_log_debug("link %p: output node %p clock %p, live %d",
this, output_node, output_node->clock, output_node->live);
spa_list_append(&output->links, &this->output_link);
spa_list_append(&input->links, &this->input_link);
@ -1292,10 +1305,9 @@ void pw_link_destroy(struct pw_link *link)
if (link->info.format)
free(link->info.format);
if (link->buffer_owner == link) {
free(link->buffers);
pw_memblock_free(link->buffer_mem);
}
if (link->allocation_owner == link)
free_allocation(&link->allocation);
free(impl);
}

51
src/pipewire/port.c
View file

@ -559,10 +559,8 @@ void pw_port_destroy(struct pw_port *port)
pw_log_debug("port %p: free", port);
spa_hook_list_call(&port->listener_list, struct pw_port_events, free);
if (port->allocated) {
free(port->buffers);
pw_memblock_free(port->buffer_mem);
}
if (port->allocated)
free_allocation(&port->allocation);
if (port->properties)
pw_properties_free(port->properties);
@ -661,23 +659,24 @@ int pw_port_set_param(struct pw_port *port, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
int res;
struct pw_node *node = port->node;
struct pw_core *core = node->core;
struct pw_type *t = &core->type;
res = spa_node_port_set_param(port->node->node, port->direction, port->port_id, id, flags, param);
res = spa_node_port_set_param(node->node, port->direction, port->port_id, id, flags, param);
pw_log_debug("port %p: set param %s: %d (%s)", port,
spa_type_map_get_type(port->node->core->type.map, id), res, spa_strerror(res));
spa_type_map_get_type(t->map, id), res, spa_strerror(res));
if (!SPA_RESULT_IS_ASYNC(res) && id == port->node->core->type.param.idFormat) {
if (id == t->param.idFormat) {
if (param == NULL || res < 0) {
if (port->allocated) {
free(port->buffers);
pw_memblock_free(port->buffer_mem);
free_allocation(&port->allocation);
port->allocated = false;
}
port->buffers = NULL;
port->n_buffers = 0;
port->allocated = false;
drop_allocation(&port->allocation);
port_update_state (port, PW_PORT_STATE_CONFIGURE);
}
else {
else if (!SPA_RESULT_IS_ASYNC(res)) {
port_update_state (port, PW_PORT_STATE_READY);
}
}
@ -699,19 +698,17 @@ int pw_port_use_buffers(struct pw_port *port, struct spa_buffer **buffers, uint3
pw_log_debug("port %p: use %d buffers: %d (%s)", port, n_buffers, res, spa_strerror(res));
if (port->allocated) {
free(port->buffers);
pw_memblock_free(port->buffer_mem);
free_allocation(&port->allocation);
port->allocated = false;
}
if (res < 0) {
port->buffers = NULL;
port->n_buffers = 0;
drop_allocation(&port->allocation);
} else {
port->buffers = buffers;
port->n_buffers = n_buffers;
port->allocation.buffers = buffers;
port->allocation.n_buffers = n_buffers;
}
port->allocated = false;
if (port->n_buffers == 0)
if (port->allocation.n_buffers == 0)
port_update_state (port, PW_PORT_STATE_READY);
else if (!SPA_RESULT_IS_ASYNC(res))
port_update_state (port, PW_PORT_STATE_PAUSED);
@ -735,21 +732,19 @@ int pw_port_alloc_buffers(struct pw_port *port,
pw_log_debug("port %p: alloc %d buffers: %d (%s)", port, *n_buffers, res, spa_strerror(res));
if (port->allocated) {
free(port->buffers);
pw_memblock_free(port->buffer_mem);
free_allocation(&port->allocation);
}
if (res < 0) {
port->buffers = NULL;
port->n_buffers = 0;
drop_allocation(&port->allocation);
port->allocated = false;
}
else {
port->buffers = buffers;
port->n_buffers = *n_buffers;
port->allocation.buffers = buffers;
port->allocation.n_buffers = *n_buffers;
port->allocated = true;
}
if (port->n_buffers == 0)
if (port->allocation.n_buffers == 0)
port_update_state (port, PW_PORT_STATE_READY);
else if (!SPA_RESULT_IS_ASYNC(res))
port_update_state (port, PW_PORT_STATE_PAUSED);

28
src/pipewire/private.h
View file

@ -189,6 +189,24 @@ struct pw_main_loop {
bool running;
};
struct allocation {
struct pw_memblock *mem; /**< allocated buffer memory */
struct spa_buffer **buffers; /**< port buffers */
uint32_t n_buffers; /**< number of port buffers */
};
static inline void drop_allocation(struct allocation *alloc)
{
alloc->buffers = NULL;
alloc->n_buffers = 0;
}
static inline void free_allocation(struct allocation *alloc)
{
pw_memblock_free(alloc->mem);
free(alloc->buffers);
}
struct pw_link {
struct pw_core *core; /**< core object */
struct spa_list link; /**< link in core link_list */
@ -213,10 +231,8 @@ struct pw_link {
struct spa_hook_list listener_list;
void *buffer_owner;
struct pw_memblock *buffer_mem;
struct spa_buffer **buffers;
uint32_t n_buffers;
void *allocation_owner;
struct allocation allocation;
struct {
struct spa_graph_port out_port;
@ -304,9 +320,7 @@ struct pw_port {
struct spa_io_buffers io; /**< io area of the port */
bool allocated; /**< if buffers are allocated */
struct pw_memblock *buffer_mem; /**< allocated buffer memory */
struct spa_buffer **buffers; /**< port buffers */
uint32_t n_buffers; /**< number of port buffers */
struct allocation allocation;
struct spa_list links; /**< list of \ref pw_link */