fix(crit): skip processes with no FDs

Using `crit x fd` to list file descriptors now skips processes that have no associated FDs. Signed-off-by: Prajwal S N <[email protected]>
snprajwal · Aug 4, 2023 · 82838bc · 82838bc
1 parent 5963a51
commit 82838bc
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/crit/explore.go b/crit/explore.go
@@ -71,7 +71,7 @@ func (c *crit) ExplorePs() (*PsTree, error) {
 // Fd represents the file descriptors opened in a single process
 type Fd struct {
 	PId   uint32  `json:"pId"`
-	Files []*File `json:"files,omitempty"`
+	Files []*File `json:"files"`
 }
 
 // File represents a single opened file
@@ -145,6 +145,11 @@ func (c *crit) ExploreFds() ([]*Fd, error) {
 			Path: filePath,
 		})
 
+		// Omit if the process has no file descriptors
+		if len(fdEntry.Files) == 0 {
+			continue
+		}
+
 		fds = append(fds, &fdEntry)
 	}