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IOInterrupter actions are now atomic

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This commit is contained in:
Quentin Renard
2025-03-01 14:28:34 +01:00
parent 948d39059d
commit f136032704
5 changed files with 25 additions and 7 deletions
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11
atomic.c Normal file
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@@ -0,0 +1,11 @@
#include <stdatomic.h>
int astiavAtomicLoadInt(atomic_int* i)
{
return atomic_load(i);
}
void astiavAtomicStoreInt(atomic_int* i, int v)
{
return atomic_store(i, v);
}

4
atomic.h Normal file
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@@ -0,0 +1,4 @@
#include <stdatomic.h>
int astiavAtomicLoadInt(atomic_int* i);
void astiavAtomicStoreInt(atomic_int* i, int v);

5
io_interrupter.c
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@@ -1,13 +1,14 @@
#include <libavformat/avio.h> #include <libavformat/avio.h>
#include <libavutil/mem.h> #include <libavutil/mem.h>
#include <stdatomic.h>
#include <stdlib.h> #include <stdlib.h>
int astiavInterruptCallback(void *ret) int astiavInterruptCallback(void *ret)
{ {
return *((int*)ret); return atomic_load((atomic_int*)ret);
} }
AVIOInterruptCB* astiavNewInterruptCallback(int *ret) AVIOInterruptCB* astiavNewInterruptCallback(atomic_int *ret)
{ {
AVIOInterruptCB* c = av_malloc(sizeof(AVIOInterruptCB)); AVIOInterruptCB* c = av_malloc(sizeof(AVIOInterruptCB));
c->callback = astiavInterruptCallback; c->callback = astiavInterruptCallback;

9
io_interrupter.go
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@@ -1,5 +1,6 @@
package astiav package astiav
//#include "atomic.h"
//#include "io_interrupter.h" //#include "io_interrupter.h"
//#include <libavutil/mem.h> //#include <libavutil/mem.h>
//#include <stdlib.h> //#include <stdlib.h>
@@ -8,7 +9,7 @@ import "unsafe"
type IOInterrupter struct { type IOInterrupter struct {
c *C.AVIOInterruptCB c *C.AVIOInterruptCB
i C.int i C.atomic_int
} }
func NewIOInterrupter() *IOInterrupter { func NewIOInterrupter() *IOInterrupter {
@@ -25,13 +26,13 @@ func (i *IOInterrupter) Free() {
} }
func (i *IOInterrupter) Interrupt() { func (i *IOInterrupter) Interrupt() {
i.i = 1 C.astiavAtomicStoreInt(&i.i, 1)
} }
func (i *IOInterrupter) Interrupted() bool { func (i *IOInterrupter) Interrupted() bool {
return i.i == 1 return C.astiavAtomicLoadInt(&i.i) == 1
} }
func (i *IOInterrupter) Resume() { func (i *IOInterrupter) Resume() {
i.i = 0 C.astiavAtomicStoreInt(&i.i, 0)
} }

3
io_interrupter.h
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@@ -1,4 +1,5 @@
#include <libavformat/avio.h> #include <libavformat/avio.h>
#include <stdatomic.h>
int astiavInterruptCallback(void *ret); int astiavInterruptCallback(void *ret);
AVIOInterruptCB* astiavNewInterruptCallback(int *ret); AVIOInterruptCB* astiavNewInterruptCallback(atomic_int *ret);