Merge pull request adafruit#3149 from DavePutz/issue2949

dhalbert · web-flow · commit 7f27fcd63af7 · 2020-07-21T13:29:10.000-04:00
Issue#2949 Put in a check to prevent USB starvation by long calculations
diff --git a/py/mpz.c b/py/mpz.c
@@ -444,6 +444,10 @@ STATIC size_t mpn_mul(mpz_dig_t *idig, mpz_dig_t *jdig, size_t jlen, mpz_dig_t *
         }
 
         ilen = id - oidig;
+        // check to prevent usb starvation
+        #ifdef RUN_BACKGROUND_TASKS
+        RUN_BACKGROUND_TASKS;
+        #endif
     }
 
     return ilen;

Original file line number	Diff line number	Diff line change
`@@ -444,6 +444,10 @@ STATIC size_t mpn_mul(mpz_dig_t idig, mpz_dig_t jdig, size_t jlen, mpz_dig_t *`
`444`	`444`	`}`
`445`	`445`
`446`	`446`	`ilen = id - oidig;`
	`447`	`+ // check to prevent usb starvation`
	`448`	`+ #ifdef RUN_BACKGROUND_TASKS`
	`449`	`+ RUN_BACKGROUND_TASKS;`
	`450`	`+ #endif`
`447`	`451`	`}`
`448`	`452`
`449`	`453`	`return ilen;`