quick patch for negative workers

Author: MutsiMutsi

surge/SurgeCore.go

@@ -264,6 +264,9 @@ func WriteChunk(FileID string, ChunkID int32, Chunk []byte) {
 	defer RecoverAndLog()
 
 	workerCount--
+	if workerCount < 0 {
+		workerCount = 0
+	}
 
 	fileInfo, err := dbGetFile(FileID)
 	if err != nil {

surge/download.go

@@ -198,6 +198,10 @@ func downloadChunks(file *File, randomChunks []int) {
 					appendChunkLock.Unlock()
 
 					workerCount--
+					//TODO: Remove this clamp, dont double count timeouted arrivals
+					if workerCount < 0 {
+						workerCount = 0
+					}
 
 					//This file was not available at this time from this seeder, drop seeder for file.
 					mutateSeederLock.Lock()
@@ -271,6 +275,10 @@ func downloadChunks(file *File, randomChunks []int) {
 					appendChunkLock.Unlock()
 
 					workerCount--
+					//TODO: Remove this clamp, dont double count timeouted arrivals
+					if workerCount < 0 {
+						workerCount = 0
+					}
 
 					//This file was not available at this time from this seeder, drop seeder for file.
 					mutateSeederLock.Lock()