diff options
Diffstat (limited to 'wsm.go')
| -rw-r--r-- | wsm.go | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -112,7 +112,7 @@ func messageChooseCourse( thisCourseGroup := course.Group - if (*userCourseGroups)[thisCourseGroup] { + if _, ok := (*userCourseGroups)[thisCourseGroup]; ok { err := writeText(ctx, c, "R "+mar[1]+" :Group conflict") if err != nil { return fmt.Errorf( @@ -201,7 +201,7 @@ func messageChooseCourse( * This would race if message handlers could run * concurrently for one connection. */ - (*userCourseGroups)[thisCourseGroup] = true + (*userCourseGroups)[thisCourseGroup] = struct{}{} err = writeText(ctx, c, "Y "+mar[1]) if err != nil { @@ -308,10 +308,10 @@ func messageUnchooseCourse( defer coursesLock.RUnlock() thisCourseGroup = courses[courseID].Group }() - if !(*userCourseGroups)[thisCourseGroup] { + if _, ok := (*userCourseGroups)[thisCourseGroup]; !ok { return reportError("inconsistent user course groups") } - (*userCourseGroups)[thisCourseGroup] = false + delete(*userCourseGroups, thisCourseGroup) } err = writeText(ctx, c, "N "+mar[1]) |