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authorValentin Rothberg <rothberg@redhat.com>2020-09-15 14:28:38 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-09-15 14:28:38 +0200
commit0b7cb2c6b2c435a6301740675382b2e55d0588be (patch)
tree3107aad4c8e41c43654ee419a4e0bce3882f5934 /pkg/api
parent5c47a331ba768d57ef94b9595415500f4e911964 (diff)
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events endpoint: header: do not wait for events
Do not wait for events to occur before writing the OK header. Events can take an unknown amount of time to occur and clients do not need to wait until then to know if the connection is good. Fixes: #7263 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'pkg/api')
-rw-r--r--pkg/api/handlers/compat/events.go22
1 files changed, 7 insertions, 15 deletions
diff --git a/pkg/api/handlers/compat/events.go b/pkg/api/handlers/compat/events.go
index 289bf4a2d..fbb33410f 100644
--- a/pkg/api/handlers/compat/events.go
+++ b/pkg/api/handlers/compat/events.go
@@ -4,7 +4,6 @@ import (
"encoding/json"
"fmt"
"net/http"
- "sync"
"github.com/containers/podman/v2/libpod"
"github.com/containers/podman/v2/libpod/events"
@@ -113,8 +112,13 @@ func GetEvents(w http.ResponseWriter, r *http.Request) {
errorChannel <- runtime.Events(r.Context(), readOpts)
}()
- var coder *jsoniter.Encoder
- var writeHeader sync.Once
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ if flusher, ok := w.(http.Flusher); ok {
+ flusher.Flush()
+ }
+ coder := json.NewEncoder(w)
+ coder.SetEscapeHTML(true)
for stream := true; stream; stream = query.Stream {
select {
@@ -124,18 +128,6 @@ func GetEvents(w http.ResponseWriter, r *http.Request) {
return
}
case evt := <-eventChannel:
- writeHeader.Do(func() {
- // Use a sync.Once so that we write the header
- // only once.
- w.Header().Set("Content-Type", "application/json")
- w.WriteHeader(http.StatusOK)
- if flusher, ok := w.(http.Flusher); ok {
- flusher.Flush()
- }
- coder = json.NewEncoder(w)
- coder.SetEscapeHTML(true)
- })
-
if evt == nil {
continue
}