Make gzip check smaller and inline it

rhpvorderman · rhpvorderman · commit 52183b458df3 · 2022-09-27T09:14:20.000+02:00
diff --git a/src/isal/isal_zlibmodule.c b/src/isal/isal_zlibmodule.c
@@ -123,12 +123,10 @@ static int zlib_mem_level_to_isal(int mem_level) {
     return ZLIB_MEM_LEVEL_TO_ISAL[mem_level];
 }
 
-static int
+static inline int
 data_is_gzip(Py_buffer *data){
-    if (data->len < 2) 
-        return 0;
     uint8_t *buf = (uint8_t *)data->buf;
-    return (buf[0] == 31 && buf[1] == 139);
+    return (data->len > 1) && (buf[0] == 31) && (buf[1] == 139);
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -123,12 +123,10 @@ static int zlib_mem_level_to_isal(int mem_level) {`
`123`	`123`	`return ZLIB_MEM_LEVEL_TO_ISAL[mem_level];`
`124`	`124`	`}`
`125`	`125`
`126`		`-static int`
	`126`	`+static inline int`
`127`	`127`	`data_is_gzip(Py_buffer *data){`
`128`		`- if (data->len < 2)`
`129`		`- return 0;`
`130`	`128`	`uint8_t buf = (uint8_t )data->buf;`
`131`		`- return (buf[0] == 31 && buf[1] == 139);`
	`129`	`+ return (data->len > 1) && (buf[0] == 31) && (buf[1] == 139);`
`132`	`130`	`}`
`133`	`131`
`134`	`132`