OnceTest.cpp File Reference

#include "include/private/base/SkOnce.h"
#include "src/core/SkTaskGroup.h"
#include "tests/Test.h"
#include <functional>

Go to the source code of this file.

Functions
static void	add_five (int *x)
	DEF_TEST (SkOnce_Singlethreaded, r)
	DEF_TEST (SkOnce_Multithreaded, r)
static void	inc_gX ()
	DEF_TEST (SkOnce_NoArg, r)

Variables
static int	gX = 0

Function Documentation

add_five()

static void add_five ( int *  x )

static

Definition at line 14 of file OnceTest.cpp.

                             {
    *x += 5;
}

DEF_TEST() [1/3]

DEF_TEST	(	SkOnce_Multithreaded	,
		r
	)

Definition at line 32 of file OnceTest.cpp.

                                  {
    int x = 0;
 
    // Run a bunch of tasks to be the first to add six to x.
    SkOnce once;
    SkTaskGroup().batch(1021, [&](int) {
        once([&] { x += 6; });
    });
 
    // Only one should have done the +=.
    REPORTER_ASSERT(r, 6 == x);
}

DEF_TEST() [2/3]

DEF_TEST	(	SkOnce_NoArg	,
		r
	)

Definition at line 48 of file OnceTest.cpp.

                          {
    SkOnce once;
    once(inc_gX);
    once(inc_gX);
    once(inc_gX);
    REPORTER_ASSERT(r, 1 == gX);
}

DEF_TEST() [3/3]

DEF_TEST	(	SkOnce_Singlethreaded	,
		r
	)

Definition at line 18 of file OnceTest.cpp.

                                   {
    int x = 0;
 
    // No matter how many times we do this, x will be 5.
    SkOnce once;
    once(add_five, &x);
    once(add_five, &x);
    once(add_five, &x);
    once(add_five, &x);
    once(add_five, &x);
 
    REPORTER_ASSERT(r, 5 == x);
}

inc_gX()

static void inc_gX ( )

static

Definition at line 46 of file OnceTest.cpp.

{ gX++; }

Variable Documentation

gX

int gX = 0

static

Definition at line 45 of file OnceTest.cpp.