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System: More work on making system functions pluggable

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Move the epoll functions to the system functions and make the loop
use those. Use simple mask for events instead of enum.
Add the used system api in pw_loop.
Add System API to spa_support and use it where possible.
Pass the system API used in the realtime loops in spa_support as
well and use this in the realtime paths.
Improve bootstrapping, load only the log and cpu interfaces because
those can/need to be shared between instances. Let the core load
the other interfaces.
Add keys to configure the System and Loop implementations used in
pw_loop.
This commit is contained in:
Wim Taymans 2019-06-06 15:21:40 +02:00
parent 86dc0496a5
commit db88e9f954
22 changed files with 455 additions and 342 deletions
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18
spa/include/spa/support/loop.h
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@ -32,6 +32,7 @@ extern "C" {
#include <spa/utils/defs.h>
#include <spa/utils/hook.h>
#include <spa/utils/result.h>
#include <spa/support/system.h>
#define SPA_VERSION_LOOP 0
struct spa_loop { struct spa_interface iface; };
@ -41,13 +42,6 @@ struct spa_loop_control { struct spa_interface iface; };
struct spa_loop_utils { struct spa_interface iface; };
struct spa_source;
enum spa_io {
SPA_IO_IN = (1 << 0),
SPA_IO_OUT = (1 << 1),
SPA_IO_HUP = (1 << 2),
SPA_IO_ERR = (1 << 3),
};
typedef void (*spa_source_func_t) (struct spa_source *source);
struct spa_source {
@ -55,8 +49,8 @@ struct spa_source {
spa_source_func_t func;
void *data;
int fd;
enum spa_io mask;
enum spa_io rmask;
uint32_t mask;
uint32_t rmask;
};
typedef int (*spa_invoke_func_t) (struct spa_loop *loop,
@ -202,7 +196,7 @@ struct spa_loop_control_methods {
#define spa_loop_control_leave(l) spa_loop_control_method_v(l,leave,0)
#define spa_loop_control_iterate(l,...) spa_loop_control_method_r(l,iterate,0,__VA_ARGS__)
typedef void (*spa_source_io_func_t) (void *data, int fd, enum spa_io mask);
typedef void (*spa_source_io_func_t) (void *data, int fd, uint32_t mask);
typedef void (*spa_source_idle_func_t) (void *data);
typedef void (*spa_source_event_func_t) (void *data, uint64_t count);
typedef void (*spa_source_timer_func_t) (void *data, uint64_t expirations);
@ -219,11 +213,11 @@ struct spa_loop_utils_methods {
struct spa_source *(*add_io) (void *object,
int fd,
enum spa_io mask,
uint32_t mask,
bool close,
spa_source_io_func_t func, void *data);
int (*update_io) (void *object, struct spa_source *source, enum spa_io mask);
int (*update_io) (void *object, struct spa_source *source, uint32_t mask);
struct spa_source *(*add_idle) (void *object,
bool enabled,