From d8bde9b96e1e314534cd76345c61c623c5824132 Mon Sep 17 00:00:00 2001
From: Dominic Pearson <dsp@technoanimal.net>
Date: Mon, 3 Jun 2024 07:10:28 +0200
Subject: [PATCH] Solaris disk support (#5638)

---
 weed/stats/disk_common.go       | 17 +++++++++++++++++
 weed/stats/disk_notsupported.go |  4 ++--
 weed/stats/disk_openbsd.go      |  6 +++---
 weed/stats/disk_solaris.go      | 24 ++++++++++++++++++++++++
 weed/stats/disk_windows.go      |  4 +---
 5 files changed, 47 insertions(+), 8 deletions(-)
 create mode 100644 weed/stats/disk_common.go
 create mode 100644 weed/stats/disk_solaris.go

diff --git a/weed/stats/disk_common.go b/weed/stats/disk_common.go
new file mode 100644
index 000000000..936c77e91
--- /dev/null
+++ b/weed/stats/disk_common.go
@@ -0,0 +1,17 @@
+package stats
+
+import "github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
+
+func calculateDiskRemaining(disk *volume_server_pb.DiskStatus) {
+	disk.Used = disk.All - disk.Free
+
+	if disk.All > 0 {
+		disk.PercentFree = float32((float64(disk.Free) / float64(disk.All)) * 100)
+		disk.PercentUsed = float32((float64(disk.Used) / float64(disk.All)) * 100)
+	} else {
+		disk.PercentFree = 0
+		disk.PercentUsed = 0
+	}
+
+	return
+}
diff --git a/weed/stats/disk_notsupported.go b/weed/stats/disk_notsupported.go
index 418164546..956c7bf9f 100644
--- a/weed/stats/disk_notsupported.go
+++ b/weed/stats/disk_notsupported.go
@@ -1,5 +1,5 @@
-//go:build netbsd || plan9 || solaris
-// +build netbsd plan9 solaris
+//go:build netbsd || plan9
+// +build netbsd plan9
 
 package stats
 
diff --git a/weed/stats/disk_openbsd.go b/weed/stats/disk_openbsd.go
index bb03126bf..1be41e5c7 100644
--- a/weed/stats/disk_openbsd.go
+++ b/weed/stats/disk_openbsd.go
@@ -15,10 +15,10 @@ func fillInDiskStatus(disk *volume_server_pb.DiskStatus) {
 	if err != nil {
 		return
 	}
+
 	disk.All = fs.F_blocks * uint64(fs.F_bsize)
 	disk.Free = fs.F_bfree * uint64(fs.F_bsize)
-	disk.Used = disk.All - disk.Free
-	disk.PercentFree = float32((float64(disk.Free) / float64(disk.All)) * 100)
-	disk.PercentUsed = float32((float64(disk.Used) / float64(disk.All)) * 100)
+	calculateDiskRemaining(disk)
+
 	return
 }
diff --git a/weed/stats/disk_solaris.go b/weed/stats/disk_solaris.go
new file mode 100644
index 000000000..cce20e4cc
--- /dev/null
+++ b/weed/stats/disk_solaris.go
@@ -0,0 +1,24 @@
+//go:build solaris
+// +build solaris
+
+package stats
+
+import (
+	"golang.org/x/sys/unix"
+
+	"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
+)
+
+func fillInDiskStatus(disk *volume_server_pb.DiskStatus) {
+	var stat unix.Statvfs_t
+	err := unix.Statvfs(disk.Dir, &stat)
+	if err != nil {
+		return
+	}
+
+	disk.All = stat.Blocks * uint64(stat.Bsize)
+	disk.Free = stat.Bfree * uint64(stat.Bsize)
+	calculateDiskRemaining(disk)
+
+	return
+}
diff --git a/weed/stats/disk_windows.go b/weed/stats/disk_windows.go
index 16e6d3326..93c703134 100644
--- a/weed/stats/disk_windows.go
+++ b/weed/stats/disk_windows.go
@@ -39,9 +39,7 @@ func fillInDiskStatus(disk *volume_server_pb.DiskStatus) {
 
 		return
 	}
-	disk.Used = disk.All - disk.Free
-	disk.PercentFree = float32((float64(disk.Free) / float64(disk.All)) * 100)
-	disk.PercentUsed = float32((float64(disk.Used) / float64(disk.All)) * 100)
+	calculateDiskRemaining(disk)
 
 	return
 }