Issue adafruit#2949 Run background checks during long multiplications

DavePutz · web-flow · commit e963cff72de0 · 2020-07-13T22:27:06.000-05:00
diff --git a/py/mpz.c b/py/mpz.c
@@ -443,8 +443,11 @@ STATIC size_t mpn_mul(mpz_dig_t *idig, mpz_dig_t *jdig, size_t jlen, mpz_dig_t *
             *id++ = carry;
         }
 
-        ilen = id - oidig;
+      ilen = id - oidig;
+      // check to prevent usb starvation
+      RUN_BACKGROUND_TASKS;
     }
+    
 
     return ilen;
 }

Original file line number	Diff line number	Diff line change
`@@ -443,8 +443,11 @@ STATIC size_t mpn_mul(mpz_dig_t idig, mpz_dig_t jdig, size_t jlen, mpz_dig_t *`
`443`	`443`	`*id++ = carry;`
`444`	`444`	`}`
`445`	`445`
`446`		`- ilen = id - oidig;`
	`446`	`+ ilen = id - oidig;`
	`447`	`+ // check to prevent usb starvation`
	`448`	`+ RUN_BACKGROUND_TASKS;`
`447`	`449`	`}`
	`450`	`+`
`448`	`451`
`449`	`452`	`return ilen;`
`450`	`453`	`}`