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authorJakob Unterwurzacher2020-02-15 17:21:30 +0100
committerJakob Unterwurzacher2020-02-15 17:21:30 +0100
commitd5ce340c02601992cc9dab1bd7d3c2d95d81155e (patch)
treee709cea1677b2d9dff80ce83d5086aaaebf03c49 /internal/prefer_openssl/prefer.go
parent9aeb2a3df68539ad3a44283b9b94e1b28f011941 (diff)
merge prefer_openssl package into stupidgcm
Now that I have discovered golang.org/x/sys/cpu and that Go versions below 1.6 are uncommon, there was not much useful code left in prefer_openssl. Merge the remains into stupidgcm.
Diffstat (limited to 'internal/prefer_openssl/prefer.go')
-rw-r--r--internal/prefer_openssl/prefer.go31
1 files changed, 0 insertions, 31 deletions
diff --git a/internal/prefer_openssl/prefer.go b/internal/prefer_openssl/prefer.go
deleted file mode 100644
index 74c26b7..0000000
--- a/internal/prefer_openssl/prefer.go
+++ /dev/null
@@ -1,31 +0,0 @@
-// Package prefer_openssl tries to determine if we should prefer openssl
-// on the platform we are running on.
-package prefer_openssl
-
-import (
- "io/ioutil"
- "regexp"
-
- "github.com/rfjakob/gocryptfs/internal/tlog"
-)
-
-// filePreferOpenSSL tells us if OpenSSL is faster than Go GCM on this machine.
-// Go GCM is faster when the CPU has AES instructions and Go is v1.6 or higher.
-//
-// See https://github.com/rfjakob/gocryptfs/issues/23#issuecomment-218286502
-// for benchmarks.
-//
-// filePreferOpenSSL takes an explicit filename so it can be tested with saved
-// cpuinfo files instead of /proc/cpuinfo.
-func filePreferOpenSSL(file string) bool {
- ci, err := ioutil.ReadFile(file)
- if err != nil {
- return true
- }
- haveAes, err := regexp.Match(`(?m)^flags.*\baes\b`, ci)
- if err != nil {
- tlog.Warn.Println(err)
- return true
- }
- return !haveAes
-}